Appendix A: Apache Cassandra (Single & Multi-node Cluster) Setup & Testing Instructions for Linux (RHEL/CentOS7)

Example successful Cassandra startup log output

1. The following is an example log of normal Cassandra startup on Linux, for a single-node, to the point where it is waiting for connections from clients:

INFO  [main] 2018-01-30 13:14:39,027 YamlConfigurationLoader.java:85 - Configuration location: file:/etc/cassandra/default.conf/cassandra.yaml
INFO  [main] 2018-01-30 13:14:39,162 Config.java:457 - Node configuration:[allocate_tokens_for_keyspace=null; authenticator=PasswordAuthenticator; authorizer =CassandraAuthorizer; auto_bootstrap=true; auto_snapshot=true; batch_size_fail_threshold_in_kb=50; batch_size_warn_threshold_in_kb=5; batchlog_replay_throttl e_in_kb=1024; broadcast_address=null; broadcast_rpc_address=null; buffer_pool_use_heap_if_exhausted=true; cas_contention_timeout_in_ms=1000; client_encryption_options=<REDACTED>; cluster_name=Test Cluster; column_index_size_in_kb=64; commit_failure_policy=stop; commitlog_compression=null; commitlog_directory=/var /lib/cassandra/commitlog; commitlog_max_compression_buffers_in_pool=3; commitlog_periodic_queue_size=-1; commitlog_segment_size_in_mb=32; commitlog_sync=peri odic; commitlog_sync_batch_window_in_ms=null; commitlog_sync_period_in_ms=10000; commitlog_total_space_in_mb=null; compaction_large_partition_warning_thresho ld_mb=100; compaction_throughput_mb_per_sec=16; concurrent_compactors=null; concurrent_counter_writes=32; concurrent_materialized_view_writes=32; concurrent_ reads=32; concurrent_replicates=null; concurrent_writes=32; counter_cache_keys_to_save=2147483647; counter_cache_save_period=7200; counter_cache_size_in_mb=n ull; counter_write_request_timeout_in_ms=5000; cross_node_timeout=false; data_file_directories=[Ljava.lang.String;@67e2d983; disk_access_mode=auto; disk_fail ure_policy=stop; disk_optimization_estimate_percentile=0.95; disk_optimization_page_cross_chance=0.1; disk_optimization_strategy=ssd; dynamic_snitch=true; dy namic_snitch_badness_threshold=0.1; dynamic_snitch_reset_interval_in_ms=600000; dynamic_snitch_update_interval_in_ms=100; enable_scripted_user_defined_functi ons=false; enable_user_defined_functions=false; enable_user_defined_functions_threads=true; encryption_options=null; endpoint_snitch=GossipingPropertyFileSni tch; file_cache_size_in_mb=512; gc_log_threshold_in_ms=200; gc_warn_threshold_in_ms=1000; hinted_handoff_disabled_datacenters=[]; hinted_handoff_enabled=true ; hinted_handoff_throttle_in_kb=1024; hints_compression=null; hints_directory=/var/lib/cassandra/hints; hints_flush_period_in_ms=10000; incremental_backups=f alse; index_interval=null; index_summary_capacity_in_mb=null; index_summary_resize_interval_in_minutes=60; initial_token=null; inter_dc_stream_throughput_out bound_megabits_per_sec=200; inter_dc_tcp_nodelay=false; internode_authenticator=null; internode_compression=all; internode_recv_buff_size_in_bytes=null; inte rnode_send_buff_size_in_bytes=null; key_cache_keys_to_save=2147483647; key_cache_save_period=14400; key_cache_size_in_mb=null; listen_address=null; listen_in terface=null; listen_interface_prefer_ipv6=false; listen_on_broadcast_address=false; max_hint_window_in_ms=10800000; max_hints_delivery_threads=2; max_hints_ file_size_in_mb=128; max_mutation_size_in_kb=null; max_streaming_retries=3; max_value_size_in_mb=256; memtable_allocation_type=heap_buffers; memtable_cleanup_threshold=null; memtable_flush_writers=null; memtable_heap_space_in_mb=null; memtable_offheap_space_in_mb=null; min_free_space_per_drive_in_mb=50; native_transport_max_concurrent_connections=-1; native_transport_max_concurrent_connections_per_ip=-1; native_transport_max_frame_size_in_mb=256; native_transport_max_threads=128; native_transport_port=9042; native_transport_port_ssl=null; num_tokens=256; otc_backlog_expiration_interval_ms=200; otc_coalescing_enough_coalesced_messages=8; otc_coalescing_strategy=TIMEHORIZON; otc_coalescing_window_us=200; partitioner=org.apache.cassandra.dht.Murmur3Partitioner; permissions_cache_max_entries=1000; permissions_update_interval_in_ms=-1; permissions_validity_in_ms=2000; phi_convict_threshold=8.0; range_request_timeout_in_ms=10000; read_request_timeout_in_ms=5000; request_scheduler=org.apache.cassandra.scheduler.NoScheduler; request_scheduler_id=null; request_scheduler_options=null; request_timeout_in_ms=10000; role_manager=CassandraRoleManager; roles_cache_max_entries=1000; roles_update_interval_in_ms=-1; roles_validity_in_ms=2000; row_cache_class_name=org.apache.cassandra.cache.OHCProvider; row_cache_keys_to_save=2147483647; row_cache_save_period=0; row_cache_size_in_mb=0; rpc_address=null; rpc_interface=null; rpc_interface_prefer_ipv6=false; rpc_keepalive=true; rpc_listen_backlog=50; rpc_max_threads=2147483647; rpc_min_threads=16; rpc_port=9160; rpc_recv_buff_size_in_bytes=null; rpc_send_buff_size_in_bytes=null; rpc_server_type=sync; saved_caches_directory=/var/lib/cassandra/saved_caches; seed_provider=org.apache.cassandra.locator.SimpleSeedProvider{seeds=127.0.0.1}; server_encryption_options=<REDACTED>; snapshot_before_compaction=false; ssl_storage_port=7001; sstable_preemptive_open_interval_in_mb=50; start_native_transport=true; start_rpc=true; storage_port=7000; stream_throughput_outbound_megabits_per_sec=200; streaming_socket_timeout_in_ms=86400000; thrift_framed_transport_size_in_mb=15; thrift_max_message_length_in_mb=16; tombstone_failure_threshold=100000; tombstone_warn_threshold=1000; tracetype_query_ttl=86400; tracetype_repair_ttl=604800; trickle_fsync=false; trickle_fsync_interval_in_kb=10240; truncate_request_timeout_in_ms=60000; unlogged_batch_across_partitions_warn_threshold=10; user_defined_function_fail_timeout=1500; user_defined_function_warn_timeout=500; user_function_timeout_policy=die; windows_timer_interval=1; write_request_timeout_in_ms=2000]
INFO  [main] 2018-01-30 13:14:39,163 DatabaseDescriptor.java:325 - DiskAccessMode 'auto' determined to be mmap, indexAccessMode is mmap
INFO  [main] 2018-01-30 13:14:39,342 DatabaseDescriptor.java:432 - Global memtable on-heap threshold is enabled at 488MB
INFO  [main] 2018-01-30 13:14:39,342 DatabaseDescriptor.java:436 - Global memtable off-heap threshold is enabled at 488MB
INFO  [main] 2018-01-30 13:14:39,354 GossipingPropertyFileSnitch.java:68 - Unable to load cassandra-topology.properties; compatibility mode disabled
INFO  [main] 2018-01-30 13:14:39,526 CassandraDaemon.java:434 - Hostname: cassandra.mycompany.com
INFO  [main] 2018-01-30 13:14:39,527 CassandraDaemon.java:441 - JVM vendor/version: OpenJDK 64-Bit Server VM/1.8.0_151
INFO  [main] 2018-01-30 13:14:39,528 CassandraDaemon.java:442 - Heap size: 2046820352/2046820352
INFO  [main] 2018-01-30 13:14:39,528 CassandraDaemon.java:445 - Code Cache Non-heap memory: init = 2555904(2496K) used = 3641024(3555K) committed = 3670016(3
584K) max = 251658240(245760K)
INFO  [main] 2018-01-30 13:14:39,529 CassandraDaemon.java:445 - Metaspace Non-heap memory: init = 0(0K) used = 16864280(16469K) committed = 17563648(17152K) 
max = -1(-1K)
INFO  [main] 2018-01-30 13:14:39,530 CassandraDaemon.java:445 - Compressed Class Space Non-heap memory: init = 0(0K) used = 1950072(1904K) committed = 209715
2(2048K) max = 1073741824(1048576K)
INFO  [main] 2018-01-30 13:14:39,530 CassandraDaemon.java:445 - Par Eden Space Heap memory: init = 335544320(327680K) used = 114165512(111489K) committed = 335544320(327680K) max = 335544320(327680K)
INFO  [main] 2018-01-30 13:14:39,531 CassandraDaemon.java:445 - Par Survivor Space Heap memory: init = 41943040(40960K) used = 0(0K) committed = 41943040(40960K) max = 41943040(40960K)
INFO  [main] 2018-01-30 13:14:39,531 CassandraDaemon.java:445 - CMS Old Gen Heap memory: init = 1669332992(1630208K) used = 0(0K) committed = 1669332992(1630208K) max = 1669332992(1630208K)
INFO  [main] 2018-01-30 13:14:39,532 CassandraDaemon.java:447 - Classpath: /etc/cassandra/conf:/usr/share/cassandra/lib/airline-0.6.jar:/usr/share/cassandra/lib/antlr-runtime-3.5.2.jar:/usr/share/cassandra/lib/asm-5.0.4.jar:/usr/share/cassandra/lib/cassandra-driver-core-3.0.1-shaded.jar:/usr/share/cassandra/lib/commons-cli-1.1.jar:/usr/share/cassandra/lib/commons-codec-1.2.jar:/usr/share/cassandra/lib/commons-lang3-3.1.jar:/usr/share/cassandra/lib/commons-math3-3.2.jar:/usr/share/cassandra/lib/compress-lzf-0.8.4.jar:/usr/share/cassandra/lib/concurrentlinkedhashmap-lru-1.4.jar:/usr/share/cassandra/lib/disruptor-3.0.1.jar:/usr/share/cassandra/lib/ecj-4.4.2.jar:/usr/share/cassandra/lib/guava-18.0.jar:/usr/share/cassandra/lib/high-scale-lib-1.0.6.jar:/usr/share/cassandra/lib/jackson-core-asl-1.9.2.jar:/usr/share/cassandra/lib/jackson-mapper-asl-1.9.2.jar:/usr/share/cassandra/lib/jamm-0.3.0.jar:/usr/share/cassandra/lib/javax.inject.jar:/usr/share/cassandra/lib/jbcrypt-0.3m.jar:/usr/share/cassandra/lib/jcl-over-slf4j-1.7.7.jar:/usr/share/cassandra/lib/jna-4.2.2.jar:/usr/share/cassandra/lib/joda-time-2.4.jar:/usr/share/cassandra/lib/json-simple-1.1.jar:/usr/share/cassandra/lib/jstackjunit-0.0.1.jar:/usr/share/cassandra/lib/libthrift-0.9.2.jar:/usr/share/cassandra/lib/log4j-over-slf4j-1.7.7.jar:/usr/share/cassandra/lib/logback-classic-1.1.3.jar:/usr/share/cassandra/lib/logback-core-1.1.3.jar:/usr/share/cassandra/lib/lz4-1.3.0.jar:/usr/share/cassandra/lib/metrics-core-3.1.0.jar:/usr/share/cassandra/lib/metrics-jvm-3.1.0.jar:/usr/share/cassandra/lib/metrics-logback-3.1.0.jar:/usr/share/cassandra/lib/netty-all-4.0.44.Final.jar:/usr/share/cassandra/lib/ohc-core-0.4.3.jar:/usr/share/cassandra/lib/ohc-core-j8-0.4.3.jar:/usr/share/cassandra/lib/reporter-config3-3.0.0.jar:/usr/share/cassandra/lib/reporter-config-base-3.0.0.jar:/usr/share/cassandra/lib/sigar-1.6.4.jar:/usr/share/cassandra/lib/slf4j-api-1.7.7.jar:/usr/share/cassandra/lib/snakeyaml-1.11.jar:/usr/share/cassandra/lib/snappy-java-1.1.1.7.jar:/usr/share/cassandra/lib/ST4-4.0.8.jar:/usr/share/cassandra/lib/stream-2.5.2.jar:/usr/share/cassandra/lib/thrift-server-0.3.7.jar:/usr/share/cassandra/apache-cassandra-3.0.15.jar:/usr/share/cassandra/apache-cassandra-thrift-3.0.15.jar:/usr/share/cassandra/stress.jar::/usr/share/cassandra/lib/jamm-0.3.0.jar
INFO  [main] 2018-01-30 13:14:39,533 CassandraDaemon.java:449 - JVM Arguments: [-Xloggc:/var/log/cassandra/gc.log, -XX:+UseParNewGC, -XX:+UseConcMarkSweepGC, -XX:+CMSParallelRemarkEnabled, -XX:SurvivorRatio=8, -XX:MaxTenuringThreshold=1, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:CMSWaitDuration=10000, -XX:+CMSParallelInitialMarkEnabled, -XX:+CMSEdenChunksRecordAlways, -XX:+CMSClassUnloadingEnabled, -XX:+PrintGCDetails, -XX:+PrintGCDateStamps, -XX:+PrintHeapAtGC, -XX:+PrintTenuringDistribution, -XX:+PrintGCApplicationStoppedTime, -XX:+PrintPromotionFailure, -XX:+UseGCLogFileRotation, -XX:NumberOfGCLogFiles=10, -XX:GCLogFileSize=10M, -Xms1992M, -Xmx1992M, -Xmn400M, -ea, -Xss256k, -XX:+AlwaysPreTouch, -XX:-UseBiasedLocking, -XX:StringTableSize=1000003, -XX:+UseTLAB, -XX:+ResizeTLAB, -XX:+PerfDisableSharedMem, -XX:CompileCommandFile=/etc/cassandra/conf/hotspot_compiler, -javaagent:/usr/share/cassandra/lib/jamm-0.3.0.jar, -XX:+UseThreadPriorities, -XX:ThreadPriorityPolicy=42, -XX:+HeapDumpOnOutOfMemoryError, -Djava.net.preferIPv4Stack=true, -Dcassandra.jmx.local.port=7199, -XX:+DisableExplicitGC, -Djava.library.path=/usr/share/cassandra/lib/sigar-bin, -Dlogback.configurationFile=logback.xml, -Dcassandra.logdir=/var/log/cassandra, -Dcassandra.storagedir=, -Dcassandra-pidfile=/var/run/cassandra/cassandra.pid]
INFO  [main] 2018-01-30 13:14:39,807 NativeLibrary.java:167 - JNA mlockall successful
WARN  [main] 2018-01-30 13:14:39,808 StartupChecks.java:129 - jemalloc shared library could not be preloaded to speed up memory allocations
WARN  [main] 2018-01-30 13:14:39,808 StartupChecks.java:161 - JMX is not enabled to receive remote connections. Please see cassandra-env.sh for more info.
WARN  [main] 2018-01-30 13:14:39,809 StartupChecks.java:186 - OpenJDK is not recommended. Please upgrade to the newest Oracle Java release
INFO  [main] 2018-01-30 13:14:39,811 SigarLibrary.java:44 - Initializing SIGAR library
INFO  [main] 2018-01-30 13:14:39,825 SigarLibrary.java:180 - Checked OS settings and found them configured for optimal performance.
WARN  [main] 2018-01-30 13:14:39,830 StartupChecks.java:254 - Maximum number of memory map areas per process (vm.max_map_count) 262144 is too low, recommended value: 1048575, you can change it with sysctl.
INFO  [main] 2018-01-30 13:14:40,787 ColumnFamilyStore.java:391 - Initializing system.IndexInfo
INFO  [main] 2018-01-30 13:14:41,817 ColumnFamilyStore.java:391 - Initializing system.batches
INFO  [main] 2018-01-30 13:14:41,829 ColumnFamilyStore.java:391 - Initializing system.paxos
INFO  [main] 2018-01-30 13:14:41,845 ColumnFamilyStore.java:391 - Initializing system.local
INFO  [SSTableBatchOpen:1] 2018-01-30 13:14:41,882 BufferPool.java:226 - Global buffer pool is enabled, when pool is exahusted (max is 512 mb) it will allocate on heap
INFO  [main] 2018-01-30 13:14:41,931 CacheService.java:115 - Initializing key cache with capacity of 97 MBs.
INFO  [main] 2018-01-30 13:14:41,941 CacheService.java:137 - Initializing row cache with capacity of 0 MBs
INFO  [main] 2018-01-30 13:14:41,944 CacheService.java:166 - Initializing counter cache with capacity of 48 MBs
INFO  [main] 2018-01-30 13:14:41,947 CacheService.java:177 - Scheduling counter cache save to every 7200 seconds (going to save all keys).
INFO  [main] 2018-01-30 13:14:41,965 ColumnFamilyStore.java:391 - Initializing system.peers
INFO  [main] 2018-01-30 13:14:41,986 ColumnFamilyStore.java:391 - Initializing system.peer_events
INFO  [main] 2018-01-30 13:14:41,993 ColumnFamilyStore.java:391 - Initializing system.range_xfers
INFO  [main] 2018-01-30 13:14:42,003 ColumnFamilyStore.java:391 - Initializing system.compaction_history
INFO  [main] 2018-01-30 13:14:42,025 ColumnFamilyStore.java:391 - Initializing system.sstable_activity
INFO  [main] 2018-01-30 13:14:42,043 ColumnFamilyStore.java:391 - Initializing system.size_estimates
INFO  [main] 2018-01-30 13:14:42,058 ColumnFamilyStore.java:391 - Initializing system.available_ranges
INFO  [main] 2018-01-30 13:14:42,069 ColumnFamilyStore.java:391 - Initializing system.views_builds_in_progress
INFO  [main] 2018-01-30 13:14:42,080 ColumnFamilyStore.java:391 - Initializing system.built_views
INFO  [main] 2018-01-30 13:14:42,101 ColumnFamilyStore.java:391 - Initializing system.hints
INFO  [main] 2018-01-30 13:14:42,108 ColumnFamilyStore.java:391 - Initializing system.batchlog
INFO  [main] 2018-01-30 13:14:42,114 ColumnFamilyStore.java:391 - Initializing system.schema_keyspaces
INFO  [main] 2018-01-30 13:14:42,121 ColumnFamilyStore.java:391 - Initializing system.schema_columnfamilies
INFO  [main] 2018-01-30 13:14:42,127 ColumnFamilyStore.java:391 - Initializing system.schema_columns
INFO  [main] 2018-01-30 13:14:42,134 ColumnFamilyStore.java:391 - Initializing system.schema_triggers
INFO  [main] 2018-01-30 13:14:42,140 ColumnFamilyStore.java:391 - Initializing system.schema_usertypes
INFO  [main] 2018-01-30 13:14:42,147 ColumnFamilyStore.java:391 - Initializing system.schema_functions
INFO  [main] 2018-01-30 13:14:42,153 ColumnFamilyStore.java:391 - Initializing system.schema_aggregates
INFO  [main] 2018-01-30 13:14:42,464 ColumnFamilyStore.java:391 - Initializing system_schema.keyspaces
INFO  [main] 2018-01-30 13:14:42,479 ColumnFamilyStore.java:391 - Initializing system_schema.tables
INFO  [main] 2018-01-30 13:14:42,491 ColumnFamilyStore.java:391 - Initializing system_schema.columns
INFO  [main] 2018-01-30 13:14:42,511 ColumnFamilyStore.java:391 - Initializing system_schema.triggers
INFO  [main] 2018-01-30 13:14:42,518 ColumnFamilyStore.java:391 - Initializing system_schema.dropped_columns
INFO  [main] 2018-01-30 13:14:42,525 ColumnFamilyStore.java:391 - Initializing system_schema.views
INFO  [main] 2018-01-30 13:14:42,532 ColumnFamilyStore.java:391 - Initializing system_schema.types
INFO  [main] 2018-01-30 13:14:42,539 ColumnFamilyStore.java:391 - Initializing system_schema.functions
INFO  [main] 2018-01-30 13:14:42,547 ColumnFamilyStore.java:391 - Initializing system_schema.aggregates
INFO  [main] 2018-01-30 13:14:42,554 ColumnFamilyStore.java:391 - Initializing system_schema.indexes
INFO  [main] 2018-01-30 13:14:42,859 StorageService.java:557 - Populating token metadata from system tables
INFO  [main] 2018-01-30 13:14:42,928 StorageService.java:564 - Token metadata: Normal Tokens:
cassandra.mycompany.com/127.0.0.1:[-9127233696990875718, -9087738344019192759, -9000799545093992742, -8913320515565877973, -8865697932437688996, -8859771719362370802, 
[...] 
8456564536631080178, 8460160695614040599, 8604911031119732505, 8816757312948167691, 8864804425022295457, 8883437542398835837, 9058152561071736053, 9082297484402456608]
INFO  [main] 2018-01-30 13:14:43,618 ColumnFamilyStore.java:391 - Initializing system_distributed.parent_repair_history
INFO  [main] 2018-01-30 13:14:43,678 ColumnFamilyStore.java:391 - Initializing system_distributed.repair_history
INFO  [main] 2018-01-30 13:14:43,698 ColumnFamilyStore.java:391 - Initializing system_distributed.view_build_status
INFO  [main] 2018-01-30 13:14:43,706 ColumnFamilyStore.java:391 - Initializing cycling.calendar
INFO  [main] 2018-01-30 13:14:43,716 ColumnFamilyStore.java:391 - Initializing cycling.cyclist_alt_stats
INFO  [main] 2018-01-30 13:14:43,721 ColumnFamilyStore.java:391 - Initializing cycling.cyclist_name
INFO  [main] 2018-01-30 13:14:43,732 ColumnFamilyStore.java:391 - Initializing cycling.route
INFO  [main] 2018-01-30 13:14:43,737 ColumnFamilyStore.java:391 - Initializing cycling.whimsey
INFO  [main] 2018-01-30 13:14:44,398 ColumnFamilyStore.java:391 - Initializing system_auth.resource_role_permissons_index
INFO  [main] 2018-01-30 13:14:44,410 ColumnFamilyStore.java:391 - Initializing system_auth.role_members
INFO  [main] 2018-01-30 13:14:44,415 ColumnFamilyStore.java:391 - Initializing system_auth.role_permissions
INFO  [main] 2018-01-30 13:14:44,427 ColumnFamilyStore.java:391 - Initializing system_auth.roles
INFO  [main] 2018-01-30 13:14:44,434 ColumnFamilyStore.java:391 - Initializing system_traces.events
INFO  [main] 2018-01-30 13:14:44,436 ColumnFamilyStore.java:391 - Initializing system_traces.sessions
INFO  [pool-3-thread-1] 2018-01-30 13:14:44,439 AutoSavingCache.java:189 - reading saved cache /var/lib/cassandra/saved_caches/KeyCache-d.db
INFO  [pool-3-thread-1] 2018-01-30 13:14:44,458 AutoSavingCache.java:165 - Completed loading (20 ms; 375 keys) KeyCache cache
INFO  [main] 2018-01-30 13:14:44,470 CommitLog.java:161 - Replaying /var/lib/cassandra/commitlog/CommitLog-6-1517334004077.log, /var/lib/cassandra/commitlog/CommitLog-6-1517334004078.log
INFO  [main] 2018-01-30 13:14:44,492 CommitLog.java:163 - Log replay complete, 0 replayed mutations
INFO  [main] 2018-01-30 13:14:44,493 StorageService.java:557 - Populating token metadata from system tables
INFO  [main] 2018-01-30 13:14:44,518 StorageService.java:564 - Token metadata: Normal Tokens:
cassandra.mycompany.com/127.0.0.1:[-9127233696990875718, -9087738344019192759, -9000799545093992742, -8913320515565877973, -8865697932437688996, -8859771719362370802, 
[...]
8456564536631080178, 8460160695614040599, 8604911031119732505, 8816757312948167691, 8864804425022295457, 8883437542398835837, 9058152561071736053, 9082297484402456608]
INFO  [main] 2018-01-30 13:14:44,599 StorageService.java:575 - Cassandra version: 3.0.15
INFO  [main] 2018-01-30 13:14:44,612 StorageService.java:576 - Thrift API version: 20.1.0
INFO  [main] 2018-01-30 13:14:44,612 StorageService.java:577 - CQL supported versions: 3.4.0 (default: 3.4.0)
INFO  [main] 2018-01-30 13:14:44,713 IndexSummaryManager.java:85 - Initializing index summary manager with a memory pool size of 97 MB and a resize interval of 60 minutes
INFO  [main] 2018-01-30 13:14:44,726 StorageService.java:596 - Loading persisted ring state
INFO  [main] 2018-01-30 13:14:44,745 StorageService.java:745 - Starting up server gossip
INFO  [main] 2018-01-30 13:14:44,815 TokenMetadata.java:479 - Updating topology for cassandra.mycompany.com/127.0.0.1
INFO  [main] 2018-01-30 13:14:44,815 TokenMetadata.java:479 - Updating topology for cassandra.mycompany.com/127.0.0.1
INFO  [main] 2018-01-30 13:14:44,853 MessagingService.java:587 - Starting Messaging Service on cassandra.mycompany.com/127.0.0.1:7000 (eth0)
INFO  [main] 2018-01-30 13:14:44,875 StorageService.java:920 - Using saved tokens [-1070547857932591802, -1160331912647069113, -1249655781347423069, -1296122843550004310, 
[...]
8864804425022295457, 8883437542398835837, 9058152561071736053, 9082297484402456608]
INFO  [main] 2018-01-30 13:14:45,298 StorageService.java:2007 - Node cassandra.mycompany.com/127.0.0.1 state jump to NORMAL
INFO  [main] 2018-01-30 13:14:45,304 CassandraDaemon.java:656 - Waiting for gossip to settle before accepting client requests...
INFO  [main] 2018-01-30 13:14:53,306 CassandraDaemon.java:687 - No gossip backlog; proceeding
INFO  [main] 2018-01-30 13:14:53,417 NativeTransportService.java:70 - Netty using native Epoll event loop
INFO  [main] 2018-01-30 13:14:53,479 Server.java:159 - Using Netty Version: [netty-buffer=netty-buffer-4.0.44.Final.452812a, netty-codec=netty-codec-4.0.44.Final.452812a, netty-codec-haproxy=netty-codec-haproxy-4.0.44.Final.452812a, netty-codec-http=netty-codec-http-4.0.44.Final.452812a, netty-codec-socks=netty-codec-socks-4.0.44.Final.452812a, netty-common=netty-common-4.0.44.Final.452812a, netty-handler=netty-handler-4.0.44.Final.452812a, netty-tcnative=netty-tcnative-1.1.33.Fork26.142ecbb, netty-transport=netty-transport-4.0.44.Final.452812a, netty-transport-native-epoll=netty-transport-native-epoll-4.0.44.Final.452812a, netty-transport-rxtx=netty-transport-rxtx-4.0.44.Final.452812a, netty-transport-sctp=netty-transport-sctp-4.0.44.Final.452812a, netty-transport-udt=netty-transport-udt-4.0.44.Final.452812a]
INFO  [main] 2018-01-30 13:14:53,480 Server.java:160 - Starting listening for CQL clients on cassandra.mycompany.com/127.0.0.1:9042 (unencrypted)...
INFO  [main] 2018-01-30 13:14:53,565 ThriftServer.java:119 - Binding thrift service to cassandra.mycompany.com/127.0.0.1:9160
INFO  [Thread-2] 2018-01-30 13:14:53,573 ThriftServer.java:136 - Listening for thrift clients...

Appendix B: Apache Cassandra (Single & Multi-node Cluster) Setup & Testing Instructions for Windows (2012-R2 x64)

How to set the FQDN (hostname + primary DNS suffix)

1. Set the hostname and primary DNS suffix on the machine itself by doing the following:

1.1. Go to Control Panel > System and Security > System. On the sidebar on the left click on Advanced system settings.

1.2. In the System Properties window, go to the "Computer Name" tab, then click the Change... button

1.3. In the Computer Name/Domain Changes window, under Computer Name, type in the new computer name (ex: ICX-SYNDEIA).

The hostname is now entered. To set the DNS suffix, click More...

1.4. In the DNS Suffix and NetBIOS Computer Name window, in the Primary DNS suffix of this computer field, type in the DNS suffix, ex: .microsoft.com, .nasa.gov, etc.

The primary DNS suffix is now entered.
Note, the hostname and primary DNS suffix combined together is referred to as the Fully Qualified Domain Name (FQDN), ex: icx-syndeia.mydomain.com.

1.5 Click OK, OK, OK

How to set the System JAVA_HOME Environment Variable

2. To set the System JAVA_HOME=C:\Program Files\Java\jre1.8.0_151 Environment Variable, perform the following:

2.1. Go to Control Panel, System and Security, System, Click on Advanced system settings on the sidebar on the left & then Environment Variables

2.2. In the Environment Variables window, click New... under the "System variables" section.

2.3. In the New System Variable window, enter in JAVA_HOME for Variable name and C:\Program Files\Java\jre1.8.0_151 for Variable value.

2.4. Click OK, OK, OK

How to enable QuickEdit Mode, increase scrollback history, and set window size for CMD.EXE

3. To enable QuickEdit Mode, increase the scrollback history, width, and height to be as large as possible, L-click on the window in the top-right & select Properties. Enable QuickEdit Mode & set the Screen buffer size & window to be as large as possible, ex: 10000, 160 x 92 respectively.

Example successful Cassandra startup log output when started with LEGACY option

4. The following is an example log of normal Cassandra startup on Windows with the LEGACY option, for a single-node, to the point where it is waiting for connections from clients:

C:\Program Files\apache-cassandra-3.0.15>.\bin\cassandra.bat LEGACY
WARNING! Powershell script execution unavailable.
   Please use 'powershell Set-ExecutionPolicy Unrestricted'
   on this user-account to run cassandra with fully featured
   functionality on this platform.
Starting with legacy startup options
Starting Cassandra Server
INFO  17:30:52 Configuration location: file:/C:/Program%20Files%20(x86)/apache-cassandra-3.0.15/conf/cassandra.yaml
INFO  17:30:52 Node configuration:[allocate_tokens_for_keyspace=null; authenticator=AllowAllAuthenticator; authorizer=AllowAllAuthorizer; auto_bootstrap=true; a uto_snapshot=true; batch_size_fail_threshold_in_kb=50; batch_size_warn_threshold_in_kb=5; batchlog_replay_throttle_in_kb=1024; broadcast_address=null; broadcast _rpc_address=null; buffer_pool_use_heap_if_exhausted=true; cas_contention_timeout_in_ms=1000; client_encryption_options=<REDACTED>; cluster_name=Test Cluster; c olumn_index_size_in_kb=64; commit_failure_policy=stop; commitlog_compression=null; commitlog_directory=null; commitlog_max_compression_buffers_in_pool=3; commit log_periodic_queue_size=-1; commitlog_segment_size_in_mb=32; commitlog_sync=periodic; commitlog_sync_batch_window_in_ms=null; commitlog_sync_period_in_ms=10000; commitlog_total_space_in_mb=null; compaction_large_partition_warning_threshold_mb=100; compaction_throughput_mb_per_sec=16; concurrent_compactors=null; concurr ent_counter_writes=32; concurrent_materialized_view_writes=32; concurrent_reads=32; concurrent_replicates=null; concurrent_writes=32; counter_cache_keys_to_save =2147483647; counter_cache_save_period=7200; counter_cache_size_in_mb=null; counter_write_request_timeout_in_ms=5000; cross_node_timeout=false; data_file_direct ories=[Ljava.lang.String;@6ee12bac; disk_access_mode=auto; disk_failure_policy=stop; disk_optimization_estimate_percentile=0.95; disk_optimization_page_cross_ch ance=0.1; disk_optimization_strategy=ssd; dynamic_snitch=true; dynamic_snitch_badness_threshold=0.1; dynamic_snitch_reset_interval_in_ms=600000; dynamic_snitch_ update_interval_in_ms=100; enable_scripted_user_defined_functions=false; enable_user_defined_functions=false; enable_user_defined_functions_threads=true; encryp tion_options=null; endpoint_snitch=SimpleSnitch; file_cache_size_in_mb=512; gc_log_threshold_in_ms=200; gc_warn_threshold_in_ms=1000; hinted_handoff_disabled_da tacenters=[]; hinted_handoff_enabled=true; hinted_handoff_throttle_in_kb=1024; hints_compression=null; hints_directory=null; hints_flush_period_in_ms=10000; inc remental_backups=false; index_interval=null; index_summary_capacity_in_mb=null; index_summary_resize_interval_in_minutes=60; initial_token=null; inter_dc_stream _throughput_outbound_megabits_per_sec=200; inter_dc_tcp_nodelay=false; internode_authenticator=null; internode_compression=all; internode_recv_buff_size_in_byte s=null; internode_send_buff_size_in_bytes=null; key_cache_keys_to_save=2147483647; key_cache_save_period=14400; key_cache_size_in_mb=null; listen_address=localh ost; listen_interface=null; listen_interface_prefer_ipv6=false; listen_on_broadcast_address=false; max_hint_window_in_ms=10800000; max_hints_delivery_threads=2; max_hints_file_size_in_mb=128; max_mutation_size_in_kb=null; max_streaming_retries=3; max_value_size_in_mb=256; memtable_allocation_type=heap_buffers; memtable _cleanup_threshold=null; memtable_flush_writers=null; memtable_heap_space_in_mb=null; memtable_offheap_space_in_mb=null; min_free_space_per_drive_in_mb=50; nati ve_transport_max_concurrent_connections=-1; native_transport_max_concurrent_connections_per_ip=-1; native_transport_max_frame_size_in_mb=256; native_transport_m ax_threads=128; native_transport_port=9042; native_transport_port_ssl=null; num_tokens=256; otc_backlog_expiration_interval_ms=200; otc_coalescing_enough_coales ced_messages=8; otc_coalescing_strategy=TIMEHORIZON; otc_coalescing_window_us=200; partitioner=org.apache.cassandra.dht.Murmur3Partitioner; permissions_cache_ma x_entries=1000; permissions_update_interval_in_ms=-1; permissions_validity_in_ms=2000; phi_convict_threshold=8.0; range_request_timeout_in_ms=10000; read_reques t_timeout_in_ms=5000; request_scheduler=org.apache.cassandra.scheduler.NoScheduler; request_scheduler_id=null; request_scheduler_options=null; request_timeout_i n_ms=10000; role_manager=CassandraRoleManager; roles_cache_max_entries=1000; roles_update_interval_in_ms=-1; roles_validity_in_ms=2000; row_cache_class_name=org .apache.cassandra.cache.OHCProvider; row_cache_keys_to_save=2147483647; row_cache_save_period=0; row_cache_size_in_mb=0; rpc_address=localhost; rpc_interface=nu ll; rpc_interface_prefer_ipv6=false; rpc_keepalive=true; rpc_listen_backlog=50; rpc_max_threads=2147483647; rpc_min_threads=16; rpc_port=9160; rpc_recv_buff_siz e_in_bytes=null; rpc_send_buff_size_in_bytes=null; rpc_server_type=sync; saved_caches_directory=null; seed_provider=org.apache.cassandra.locator.SimpleSeedProvi der{seeds=127.0.0.1}; server_encryption_options=<REDACTED>; snapshot_before_compaction=false; ssl_storage_port=7001; sstable_preemptive_open_interval_in_mb=50; start_native_transport=true; start_rpc=false; storage_port=7000; stream_throughput_outbound_megabits_per_sec=200; streaming_socket_timeout_in_ms=86400000; thrif t_framed_transport_size_in_mb=15; thrift_max_message_length_in_mb=16; tombstone_failure_threshold=100000; tombstone_warn_threshold=1000; tracetype_query_ttl=864 00; tracetype_repair_ttl=604800; trickle_fsync=false; trickle_fsync_interval_in_kb=10240; truncate_request_timeout_in_ms=60000; unlogged_batch_across_partitions _warn_threshold=10; user_defined_function_fail_timeout=1500; user_defined_function_warn_timeout=500; user_function_timeout_policy=die; windows_timer_interval=1; write_request_timeout_in_ms=2000]
INFO  17:30:52 DiskAccessMode 'auto' determined to be mmap, indexAccessMode is mmap
INFO  17:30:52 Global memtable on-heap threshold is enabled at 507MB
INFO  17:30:52 Global memtable off-heap threshold is enabled at 507MB
WARN  17:30:52 Small commitlog volume detected at C:\Program Files\apache-cassandra-3.0.15\data\commitlog; setting commitlog_total_space_in_mb to 7591.  Y ou can override this in cassandra.yaml
WARN  17:30:52 Only 9041 MB free across all data volumes. Consider adding more capacity to your cluster or removing obsolete snapshots
INFO  17:30:52 Hostname: SYND-W2012R2
INFO  17:30:52 JVM vendor/version: Java HotSpot(TM) 64-Bit Server VM/1.8.0_151
INFO  17:30:52 Heap size: 2130051072/2130051072
INFO  17:30:52 Code Cache Non-heap memory: init = 2555904(2496K) used = 4098752(4002K) committed = 4128768(4032K) max = 251658240(245760K)
INFO  17:30:52 Metaspace Non-heap memory: init = 0(0K) used = 17073320(16673K) committed = 17563648(17152K) max = -1(-1K)
INFO  17:30:52 Compressed Class Space Non-heap memory: init = 0(0K) used = 2171624(2120K) committed = 2359296(2304K) max = 1073741824(1048576K)
INFO  17:30:52 Par Eden Space Heap memory: init = 139591680(136320K) used = 83906248(81939K) committed = 139591680(136320K) max = 139591680(136320K)
INFO  17:30:52 Par Survivor Space Heap memory: init = 17432576(17024K) used = 0(0K) committed = 17432576(17024K) max = 17432576(17024K)
INFO  17:30:52 CMS Old Gen Heap memory: init = 1973026816(1926784K) used = 0(0K) committed = 1973026816(1926784K) max = 1973026816(1926784K)
INFO  17:30:52 Classpath: C:\Program Files\apache-cassandra-3.0.15\conf;C:\Program Files\apache-cassandra-3.0.15\lib\airline-0.6.jar;C:\Program File s\apache-cassandra-3.0.15\lib\antlr-runtime-3.5.2.jar;C:\Program Files\apache-cassandra-3.0.15\lib\apache-cassandra-3.0.15.jar;C:\Program Files\apache-cassandra-3.0.15\lib\apache-cassandra-clientutil-3.0.15.jar;C:\Program Files\apache-cassandra-3.0.15\lib\apache-cassandra-thrift-3.0.15.jar;C:\Pr ogram Files\apache-cassandra-3.0.15\lib\asm-5.0.4.jar;C:\Program Files\apache-cassandra-3.0.15\lib\cassandra-driver-core-3.0.1-shaded.jar;C:\Program Files\apache-cassandra-3.0.15\lib\commons-cli-1.1.jar;C:\Program Files\apache-cassandra-3.0.15\lib\commons-codec-1.2.jar;C:\Program Files\apa che-cassandra-3.0.15\lib\commons-lang3-3.1.jar;C:\Program Files\apache-cassandra-3.0.15\lib\commons-math3-3.2.jar;C:\Program Files\apache-cassandra- 3.0.15\lib\compress-lzf-0.8.4.jar;C:\Program Files\apache-cassandra-3.0.15\lib\concurrentlinkedhashmap-lru-1.4.jar;C:\Program Files\apache-cassandra -3.0.15\lib\disruptor-3.0.1.jar;C:\Program Files\apache-cassandra-3.0.15\lib\ecj-4.4.2.jar;C:\Program Files\apache-cassandra-3.0.15\lib\guava-18.0.j ar;C:\Program Files\apache-cassandra-3.0.15\lib\high-scale-lib-1.0.6.jar;C:\Program Files\apache-cassandra-3.0.15\lib\jackson-core-asl-1.9.2.jar;C:\ Program Files\apache-cassandra-3.0.15\lib\jackson-mapper-asl-1.9.2.jar;C:\Program Files\apache-cassandra-3.0.15\lib\jamm-0.3.0.jar;C:\Program Files\apache-cassandra-3.0.15\lib\javax.inject.jar;C:\Program Files\apache-cassandra-3.0.15\lib\jbcrypt-0.3m.jar;C:\Program Files\apache-cassandra-3 .0.15\lib\jcl-over-slf4j-1.7.7.jar;C:\Program Files\apache-cassandra-3.0.15\lib\jna-4.2.2.jar;C:\Program Files\apache-cassandra-3.0.15\lib\joda-time -2.4.jar;C:\Program Files\apache-cassandra-3.0.15\lib\json-simple-1.1.jar;C:\Program Files\apache-cassandra-3.0.15\lib\jstackjunit-0.0.1.jar;C:\Prog ram Files\apache-cassandra-3.0.15\lib\libthrift-0.9.2.jar;C:\Program Files\apache-cassandra-3.0.15\lib\log4j-over-slf4j-1.7.7.jar;C:\Program Files ( x86)\apache-cassandra-3.0.15\lib\logback-classic-1.1.3.jar;C:\Program Files\apache-cassandra-3.0.15\lib\logback-core-1.1.3.jar;C:\Program Files\apac he-cassandra-3.0.15\lib\lz4-1.3.0.jar;C:\Program Files\apache-cassandra-3.0.15\lib\metrics-core-3.1.0.jar;C:\Program Files\apache-cassandra-3.0.15\l ib\metrics-jvm-3.1.0.jar;C:\Program Files\apache-cassandra-3.0.15\lib\metrics-logback-3.1.0.jar;C:\Program Files\apache-cassandra-3.0.15\lib\netty-a ll-4.0.44.Final.jar;C:\Program Files\apache-cassandra-3.0.15\lib\ohc-core-0.4.3.jar;C:\Program Files\apache-cassandra-3.0.15\lib\ohc-core-j8-0.4.3.j ar;C:\Program Files\apache-cassandra-3.0.15\lib\reporter-config-base-3.0.0.jar;C:\Program Files\apache-cassandra-3.0.15\lib\reporter-config3-3.0.0.j ar;C:\Program Files\apache-cassandra-3.0.15\lib\sigar-1.6.4.jar;C:\Program Files\apache-cassandra-3.0.15\lib\slf4j-api-1.7.7.jar;C:\Program Files (x 86)\apache-cassandra-3.0.15\lib\snakeyaml-1.11.jar;C:\Program Files\apache-cassandra-3.0.15\lib\snappy-java-1.1.1.7.jar;C:\Program Files\apache-cass andra-3.0.15\lib\ST4-4.0.8.jar;C:\Program Files\apache-cassandra-3.0.15\lib\stream-2.5.2.jar;C:\Program Files\apache-cassandra-3.0.15\lib\thrift-ser ver-0.3.7.jar;C:\Program Files\apache-cassandra-3.0.15\build\classes\main;C:\Program Files\apache-cassandra-3.0.15\build\classes\thrift;C:\Program F iles\apache-cassandra-3.0.15\lib\jamm-0.3.0.jar INFO  17:30:52 JVM Arguments: [-ea, -javaagent:C:\Program Files\apache-cassandra-3.0.15\lib\jamm-0.3.0.jar, -Xms2G, -Xmx2G, -XX:+HeapDumpOnOutOfMemoryErro r, -XX:+UseParNewGC, -XX:+UseConcMarkSweepGC, -XX:+CMSParallelRemarkEnabled, -XX:SurvivorRatio=8, -XX:MaxTenuringThreshold=1, -XX:CMSInitiatingOccupancyFraction =75, -XX:+UseCMSInitiatingOccupancyOnly, -Dlogback.configurationFile=logback.xml, -Djava.library.path=C:\Program Files\apache-cassandra-3.0.15\lib\sigar-b in, -Dcassandra.jmx.local.port=7199, -Dcassandra, -Dcassandra-foreground=yes, -Dcassandra.logdir=C:\Program Files\apache-cassandra-3.0.15\logs, -Dcassandr a.storagedir=C:\Program Files\apache-cassandra-3.0.15\data]
WARN  17:30:52 JMX is not enabled to receive remote connections. Please see cassandra-env.sh for more info.
INFO  17:30:52 Initializing SIGAR library
WARN  17:30:52 Cassandra server running in degraded mode. Is swap disabled? : false,  Address space adequate? : true,  nofile limit adequate? : true, nproc limi t adequate? : true
INFO  17:30:53 Initializing system.IndexInfo
INFO  17:30:54 Initializing system.batches
INFO  17:30:54 Initializing system.paxos
INFO  17:30:54 Initializing system.local
INFO  17:30:54 Global buffer pool is enabled, when pool is exahusted (max is 512 mb) it will allocate on heap
INFO  17:30:54 Initializing key cache with capacity of 100 MBs.
INFO  17:30:54 Initializing row cache with capacity of 0 MBs
INFO  17:30:54 Initializing counter cache with capacity of 50 MBs
INFO  17:30:54 Scheduling counter cache save to every 7200 seconds (going to save all keys).
INFO  17:30:54 Initializing system.peers
INFO  17:30:54 Initializing system.peer_events
INFO  17:30:54 Initializing system.range_xfers
INFO  17:30:54 Initializing system.compaction_history
INFO  17:30:54 Initializing system.sstable_activity
INFO  17:30:54 Initializing system.size_estimates
INFO  17:30:54 Initializing system.available_ranges
INFO  17:30:54 Initializing system.views_builds_in_progress
INFO  17:30:54 Initializing system.built_views
INFO  17:30:54 Initializing system.hints
INFO  17:30:54 Initializing system.batchlog
INFO  17:30:54 Initializing system.schema_keyspaces
INFO  17:30:54 Initializing system.schema_columnfamilies
INFO  17:30:54 Initializing system.schema_columns
INFO  17:30:54 Initializing system.schema_triggers
INFO  17:30:54 Initializing system.schema_usertypes
INFO  17:30:54 Initializing system.schema_functions
INFO  17:30:54 Initializing system.schema_aggregates
INFO  17:30:54 Initializing system_schema.keyspaces
INFO  17:30:54 Initializing system_schema.tables
INFO  17:30:55 Initializing system_schema.columns
INFO  17:30:55 Initializing system_schema.triggers
INFO  17:30:55 Initializing system_schema.dropped_columns
INFO  17:30:55 Initializing system_schema.views
INFO  17:30:55 Initializing system_schema.types
INFO  17:30:55 Initializing system_schema.functions
INFO  17:30:55 Initializing system_schema.aggregates
INFO  17:30:55 Initializing system_schema.indexes
INFO  17:30:55 Populating token metadata from system tables
INFO  17:30:55 Token metadata: Normal Tokens: localhost/127.0.0.1:[-9157915542431144898, -9045367399584240727, -8950040178285586622, -8897944121059937402, -8886028375310256046, 
[...]
8588494843378235250, 8658732490624262062, 8691423281461372027, 8707602252990936901, 8783126619435090505, 88524061911133 03034, 8944624027448194301, 8985819862921042931]
INFO  17:30:55 Initializing system_distributed.parent_repair_history
INFO  17:30:55 Initializing system_distributed.repair_history
INFO  17:30:55 Initializing system_auth.resource_role_permissons_index
INFO  17:30:55 Initializing system_auth.role_members
INFO  17:30:55 Initializing system_auth.role_permissions
INFO  17:30:55 Initializing system_auth.roles
INFO  17:30:55 Initializing system_traces.events
INFO  17:30:55 Initializing system_traces.sessions
INFO  17:30:55 Completed loading (21 ms; 17 keys) KeyCache cache
INFO  17:30:55 Replaying C:\Program Files\apache-cassandra-3.0.15\data\commitlog\CommitLog-6-1513272522955.log
INFO  17:30:56 Log replay complete, 0 replayed mutations
INFO  17:30:56 Populating token metadata from system tables
INFO  17:30:56 Token metadata: Normal Tokens: localhost/127.0.0.1:[-9157915542431144898, -9045367399584240727, -8950040178285586622, -8897944121059937402, -8886028375310256046, 
[...]
8588494843378235250, 8658732490624262062, 8691423281461372027, 8707602252990936901, 8783126619435090505, 88524061911133 03034, 8944624027448194301, 8985819862921042931]
INFO  17:30:56 Cassandra version: 3.0.15
INFO  17:30:56 Thrift API version: 20.1.0
INFO  17:30:56 CQL supported versions: 3.4.0 (default: 3.4.0)
INFO  17:30:56 Initializing index summary manager with a memory pool size of 101 MB and a resize interval of 60 minutes
INFO  17:30:56 Loading persisted ring state
INFO  17:30:56 Starting up server gossip
INFO  17:30:56 Updating topology for localhost/127.0.0.1
INFO  17:30:56 Updating topology for localhost/127.0.0.1
INFO  17:30:56 Starting Messaging Service on localhost/127.0.0.1:7000 (Software Loopback Interface 1)
INFO  17:30:56 Using saved tokens [-1176118340055934116, -1185191700875271446, -1199479527009721761, -1379870387553665109, -1433948168209966360, -14406723745691 94964, 
[...]
864690239103539512, 8658732490624262062, 868202796375747, 8691423281461372027, 8707602252990936901, 8783126619435090505, 8852406191113303034, 8944624027448194301, 8985819862921042931]
INFO  17:30:56 Node localhost/127.0.0.1 state jump to NORMAL
INFO  17:30:56 Netty using Java NIO event loop
INFO  17:30:56 Using Netty Version: [netty-buffer=netty-buffer-4.0.44.Final.452812a, netty-codec=netty-codec-4.0.44.Final.452812a, netty-codec-haproxy=netty-cod ec-haproxy-4.0.44.Final.452812a, netty-codec-http=netty-codec-http-4.0.44.Final.452812a, netty-codec-socks=netty-codec-socks-4.0.44.Final.452812a, netty-common= netty-common-4.0.44.Final.452812a, netty-handler=netty-handler-4.0.44.Final.452812a, netty-tcnative=netty-tcnative-1.1.33.Fork26.142ecbb, netty-transport=netty- transport-4.0.44.Final.452812a, netty-transport-native-epoll=netty-transport-native-epoll-4.0.44.Final.452812a, netty-transport-rxtx=netty-transport-rxtx-4.0.44 .Final.452812a, netty-transport-sctp=netty-transport-sctp-4.0.44.Final.452812a, netty-transport-udt=netty-transport-udt-4.0.44.Final.452812a]
INFO  17:30:56 Starting listening for CQL clients on localhost/127.0.0.1:9042 (unencrypted)...
INFO  17:30:56 Not starting RPC server as requested. Use JMX (StorageService->startRPCServer()) or nodetool (enablethrift) to start it

How to safely clone a Windows machine.

5. Prior to cloning, you may want to disjoin yourself from any Active Directory (AD) domain. Once disjoined, prep the machine to be imaged with Microsoft Deployment Toolkit's SYSPREP.EXE, (this tool resets items such as Plug 'N Play (PnP) detection, machine-specific state information, and regenerates the machine Security Identifier (SID) - note, this does not update any existing references to the old SID in the registry - or elsewhere- made by other applications. Also, keep in mind this is the only way Microsoft officially supports cloned machines. See Microsoft's documentation for further details on the toolkit and subject). If the source machine is a physical box, use a cloning tool such as Altiris's RapidDeploy, Symantec Ghost, etc. If virtual, use the appropriate vmWare, VirtualBox, or KVM, etc. Virtual Machine (VM) or Virtual Machine Disk (VMDK) cloning methods/tools. Once cloned & deployed, rejoin the domain & optionally run a SID registry update tool, ex: NewSID.

How to create a sample Cassandra Keyspace

6. To create a new keyspace perform the following step.

For a single node, from CQLSH run:

CREATE KEYSPACE IF NOT EXISTS cycling WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 1 };

For a multi-node cluster, verify the Cassandra “datacenter” name (default = dc1) from the CLI by running nodetool status and then from CQLSH run:

CREATE KEYSPACE IF NOT EXISTS cycling WITH REPLICATION = { 'class' : 'NetworkTopologyStrategy', '<datacenter_name>' : <total_number_of_nodes> }; 
-- where <datacenter_name> = the name of the datacenter as shown via nodetool status, and <total_number_of_nodes> = total # of nodes (in the cluster)

How to create sample tables in a Cassandra Keyspace

7. To create sample tables in a keyspace, from CQLSH run:

CREATE TABLE cycling.cyclist_name ( id UUID PRIMARY KEY, lastname text, firstname text );
CREATE TABLE cycling.calendar ( race_id int PRIMARY KEY, race_start_date timestamp, race_end_date timestamp, race_name text );

How to insert sample data into tables in a Cassandra Keyspace

8. To insert sample data into tables in a keyspace, from CQLSH run:

INSERT INTO cycling.cyclist_name (id, lastname, firstname) VALUES (5b6962dd-3f90-4c93-8f61-eabfa4a803e2, 'VOS','Marianne');
INSERT INTO cycling.calendar (race_id, race_start_date, race_end_date, race_name) VALUES (201, '2015-02-18', '2015-02-22', $$Women's Tour of New Zealand$$); -- use "$$"..."$$" if string contains special chars

How to create a new logon user (role) and grant permissions to a sample Cassandra Keyspace

9. To create a new logon user (role) with a password and grant permissions to the sample keyspace, from CQLSH run:

CREATE ROLE cyclingadmin WITH PASSWORD = 'pel0t0n' AND LOGIN = true;
GRANT ALL PERMISSIONS ON KEYSPACE cycling TO cyclingadmin;

DataStax DevCenter

10. You can download DevCenter from https://academy.datastax.com/downloads, you will need a free DataStax Academy account (note, DataStax is the company that was the original chair/conservator of the Apache Cassandra project).

Cassandra Encryption & Performance Optimizations

11. The security topic is divided into the following summary sections (see https://cassandra.apache.org/doc/3.11/operating/security.html for more detailed information):

Authentication: By default, on new installations, the cassandra superuser account's password is set to cassandra. To change this, connect to the CQLSH console (see Appendix C3.2 (for Windows) or Appendix C3.3 (for Linux) below) and set a new strong password, ex: ALTER ROLE cassandra WITH PASSWORD = 'MyNEWSupaS+r0ngB4dPW';.
Encryption- Internode Traffic: By default, in cassandra.yaml, under the "server_encryption_options:" section, internode encryption is set to: internode_encryption: none. If you wish to enable internode encryption, set this to either all, dc, or rack (where dc = inter-datacenter encryption). You may wish to also change the keystore and truststore passwords to something other than the default. See https://docs.oracle.com/javase/6/docs/technotes/guides/security/jsse/JSSERefGuide.html#CreateKeystore for instructions on how to setup a Keystore.
Encryption- Client/Server Traffic: By default, in cassandra.yaml, under the "client_encryption_options:" section, client/server encryption is disabled & optional, ie: "enabled: false" & "optional: false". If you wish to enable this, set enabled to true. If you wish to make this mandatory, set optional to true. You may wish to also change the keystore and truststore passwords to something other than the default. See https://docs.oracle.com/javase/6/docs/technotes/guides/security/jsse/JSSERefGuide.html#CreateKeystore for instructions on how to setup a Keystore. See also https://docs.datastax.com/en/archived/cassandra/3.0/cassandra/configuration/secureCqlshSSL.html on how to configure & enable TLS/SSL from the client-side's ~/.cassandra/cqlshrc file too.
Encryption- at rest: This can be accomplished by using per-drive File System (FS) or file-level encryption. Refer to your particular OS's documentation on how to enable this (ie: Linux LUKS, Windows Bitlocker, etc.)

For performance optimizations, examine https://docs.datastax.com/en/dse/5.1/dse-admin/datastax_enterprise/config/configRecommendedSettings.html (Note, this guide was written for Linux servers originally but some of suggestions may still apply)

Cassandra Consistency Levels

12. Consistency Level (CL) = ALL (CONSISTENCY ALL) means for a given keyspace, a read/write query needs to hear back from ALL nodes, this is the strongest consistency level but obviously the slowest. CL = ONE (CONSISTENCY ONE) means for a given keyspace, a read/write query only needs to hear back from 1 node total, this is one of the weaker consistency levels but faster obviously, this is the default. There is also CL=QUORUM (CONSISTENCY QUORUM;) which means for a given keyspace, a read/write query needs to hear back from a “quorum” of nodes. A quorum = floor ((keyspace_x_in_datacenter_1_rf ... + keyspace_x_in_datacenter_n_rf) / 2 + 1); where RF = Replication Factor & n = nodes keyspace is replicated to, ex: for a 3-node cluster in one DC with keyspace with a RF=3, floor((datacenter1_rf/2)+1) = floor((3/2)+1) = floor(1.5+1) = floor(2.5) = 2; therefore a min of 2 nodes must respond. This a mid-point between CL=ALL and CL=ONE and offers a compromise between a strong consistency level and good performance.

Cassandra Cluster Renaming

13. To rename the cluster, (on each machine if > 1) launch CQLSH, update the cluster name, flush the system table, and restart Cassandra, ie:

13.1. Launch CQLSH (see Appendix C3.2 (for Windows) or Appendix C3.3 (for Linux) below).
13.2. Enter in password (default = `cassandra`, if default, you may wish to change/secure this),
13.3. UPDATE system.local SET cluster_name = 'MyNewClusterName' where key='local'; , where MyNewClusterName = the new name for the cluster
13.4. Exit CQLSH, ie: exit;
13.4. Run nodetool flush system,
13.5. Edit cassandra.yaml (make a backup first),
13.6. Change cluster_name to MyNewClusterName, where MyNewClusterName = the new name for the cluster.
13.7.  Save cassandra.yaml ,
13.8. Restart Cassandra services, ie: sudo systemctl restart cassandra (systemctl status cassandra to verify it re-started correctly, if not, review changes for errors),
13.9. Confirm cluster name change took effect by running nodetool describecluster to verify Cluster name change in output.
13.10. Update firewall settings on server (reload if necessary, ie: sudo firewall-cmd --reload) and/or your cloud provider, ie: AWS, etc.

cassandra.bat Patching

14. To patch cassandra.bat to allow for legacy service installation please perform the following from an Administrator Cygwin terminal:

14.1 Copy and paste the below into a new file at /opt/apache-cassandra-current/bin/cassandra.bat.patch ( note, below was generated against Cassandra 3.11.1, newer versions may slightly differ but is probably unlikely):

cassandra.bat.patch

--- /opt/apache-cassandra-current/bin/cassandra.bat     2021-08-11 18:33:40.696839400 -0400
+++ cassandra_patched.bat       2021-02-03 17:25:39.228722000 -0500
@@ -16,16 +16,16 @@

 @echo off
 if "%OS%" == "Windows_NT" setlocal
-
+REM ---- Usage:  cassandra.bat [LEGACY|PS] [-INSTALL|-UNINSTALL]
 set ARG=%1
-set INSTALL="INSTALL"
-set UNINSTALL="UNINSTALL"
+set ARG2=%2

 pushd %~dp0..
 if NOT DEFINED CASSANDRA_HOME set CASSANDRA_HOME=%CD%
 popd

 if /i "%ARG%" == "LEGACY" goto runLegacy
+if /i "%ARG%" == "PS" goto runPowerShell
 REM -----------------------------------------------------------------------------
 REM See if we have access to run unsigned powershell scripts
 for /F "delims=" %%i in ('powershell Get-ExecutionPolicy') do set PERMISSION=%%i
@@ -36,7 +36,11 @@
 :runPowerShell
 echo Detected powershell execution permissions.  Running with enhanced startup scripts.
 set errorlevel=
-powershell /file "%CASSANDRA_HOME%\bin\cassandra.ps1" %*
+setlocal ENABLEDELAYEDEXPANSION
+  set "_args=%*"
+  set "_args=!_args:*%1 =!"
+endlocal
+powershell /file "%CASSANDRA_HOME%\bin\cassandra.ps1" %_args%
 exit /b %errorlevel%

 REM -----------------------------------------------------------------------------
@@ -117,8 +121,8 @@
 set CASSANDRA_PARAMS=%CASSANDRA_PARAMS% -Dcassandra.logdir="%CASSANDRA_HOME%\logs"
 set CASSANDRA_PARAMS=%CASSANDRA_PARAMS% -Dcassandra.storagedir="%CASSANDRA_HOME%\data"

-if /i "%ARG%" == "INSTALL" goto doInstallOperation
-if /i "%ARG%" == "UNINSTALL" goto doInstallOperation
+if /i "%ARG2%" == "-INSTALL" goto doInstallOperation
+if /i "%ARG2%" == "-UNINSTALL" goto doInstallOperation

 echo Starting Cassandra Server
 "%JAVA_HOME%\bin\java" %JAVA_OPTS% %CASSANDRA_PARAMS% -cp %CASSANDRA_CLASSPATH% "%CASSANDRA_MAIN%"
@@ -128,7 +132,7 @@
 :doInstallOperation
 set SERVICE_JVM="cassandra"
 rem location of Prunsrv
-set PATH_PRUNSRV=%CASSANDRA_HOME%\bin\daemon\
+set PATH_PRUNSRV=%CASSANDRA_HOME%\bin\daemon\amd64\
 set PR_LOGPATH=%PATH_PRUNSRV%

 rem Allow prunsrv to be overridden
@@ -137,10 +141,10 @@
 echo trying to delete service if it has been created already
 "%PRUNSRV%" //DS//%SERVICE_JVM%
 rem quit if we're just going to uninstall
-if /i "%ARG%" == "UNINSTALL" goto finally
+if /i "%ARG2%" == "-UNINSTALL" goto finally

 echo Installing %SERVICE_JVM%. If you get registry warnings, re-run as an Administrator
-"%PRUNSRV%" //IS//%SERVICE_JVM%
+"%PRUNSRV%" //IS//%SERVICE_JVM% --DisplayName="Apache Cassandra" --Description="Apache Cassandra + Commons Daemon service wrapper" --LogPath="%SystemRoot%\cygdrive\c\opt\apache-cassandra-current\logs" --Startup=auto

 echo Setting startup parameters for %SERVICE_JVM%
 set cmd="%PRUNSRV%" //US//%SERVICE_JVM% ^

14.2 cd in /opt/apache-cassandra-current/bin, ie: cd /opt/apache-cassandra-current/bin

14.3 Run patch -lbNp0 cassandra.bat cassandra.bat.patch

14.4 If for whatever reason the patch does not apply please apply it based on the screenshots shown below (L = original, R= modified, red = deletions, green = additions, purple = changes):

Appendix C: Syndeia Cloud Installation Instructions

Validate/Configure Cassandra is setup to authenticate

1. Ensure that the Cassandra database is setup to authenticate. Follow the steps below to do this.

1.1. On a Cassandra node, open the .\conf\cassandra.yaml file
1.2. On a Cassandra node, in cassandra.yaml, validate authenticator=PasswordAuthenticator (the default value AllowAllAuthenticator disables authentication and is never safe. For more details, see: http://cassandra.apache.org/doc/latest/configuration/cassandra_config_file.html#authenticator). Save and close the file. (Re)start the Cassandra service.

How to launch a CQLSH session on Windows

2. To launch a CQLSH session on Windows, navigate to the Cassandra bin directory, ex: C:\Program Files\apache-cassandra-3.0.15\bin and run cqlsh -u <username> <cassandra_server_FQDN>, ex: cqlsh -u cassandra myserver.mydomain.com. If you are connecting to localhost, you can optionally omit the servername. You should be prompted for credentials. Enter your credentials to authenticate.

Note, if you get a message saying "Warning: Timezone defined and 'pytz' module for timezone conversion not installed. Timestamps will be displayed in UTC timezone.", install the pytz module using the PIP Installer, ie, in a Cygwin terminal run: /usr/bin/pip2.7 install pytz.

How to launch a CQLSH session on Linux

3. To launch a CQLSH session on Linux, run cqlsh -u <username> <cassandra_server_FQDN>, ex: cqlsh -u cassandra myserver.mydomain.com. If you are connecting to localhost, you can optionally omit the servername. You should be prompted for credentials. Enter your credentials to authenticate.

How to create a new syndeia_admin role, confirm creation, and assign permissions

4. To create a new syndeia_admin role with a strong password, run the following, ie:

CREATE ROLE IF NOT EXISTS syndeia_admin WITH LOGIN = true AND PASSWORD = '<syndeia_admin_strong_password>';

where <syndeia_admin_strong_password> is a strong password, ex: ‘M1Str9ngPass80rd'. Then, run the following command to list all roles to confirm syndeia_admin is listed.

LIST ROLES;

cassandra@cqlsh> CREATE ROLE IF NOT EXISTS syndeia_admin WITH LOGIN=TRUE AND PASSWORD='syndeia4all';
cassandra@cqlsh> LIST ROLES;

 role          | super | login | options
---------------+-------+-------+---------
     cassandra |  True |  True |        {}
 syndeia_admin | False |  True |        {}

To grant all permissions on the syndeia keyspace to the syndeia_admin role, run the following, ie:

GRANT ALL PERMISSIONS ON KEYSPACE syndeia TO syndeia_admin;

Note: For more details on the GRANT command, refer to: https://docs.datastax.com/en/cql/3.3/cql/cql_reference/cqlGrant.html?hl=grant

How to enable JMX

5. The Java virtual machine (Java VM) has built-in instrumentation that enables you to monitor and manage it using the Java Management Extensions (JMX) technology. These built-in management utilities are often referred to as out-of-the-box management tools for the Java VM. You can also monitor any appropriately instrumented applications using the JMX API or with tools such as Grafana

This following is a procedure that only needs to be done once for the lifetime of the JRE/JDK version that you are using and will enable JMX for all JVMs instances that are launched with JMX properties.

The below sets up a basic security option for JMX, for more advanced security options, please review https://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html in more detail.

To enable JMX copy the default template file as ${JAVA_HOME}/jre/lib/management/jmxremote.password and add 2 lines at the bottom for monitorRole <monitorPw> and controlRole <controlPw>), example:

sudo egrep '^monitorRole |^controlRole ' /usr/lib/jvm/java-8-oracle/jre/lib/management/jmxremote.password
monitorRole MYPw!  
controlRole MyDebugPw!

The password and access file should also have the following ownership and permissions, ie: use sudo chown <user_name>:<group_name> jmxremote.password && sudo chmod u+rw,go-rwx jmxremote.password , where <user_name> & <group_name> = user & group of the account that will run the JVM, ie: syndeia-cloud.

ls -lah /usr/lib/jvm/java-8-oracle/jre/lib/management/
total 40K
drwxr-xr-x  2 root          root          4.0K Dec  2  2020 .
drwxr-xr-x 15 root          root          4.0K Dec  2  2020 ..
-rw-r--r--  1 root          root          4.0K Jan 22  2021 jmxremote.access
-rw-------  1 syndeia-cloud syndeia-cloud 2.9K Sep 12  2018 jmxremote.password
-r--r--r--  1 root          root          2.8K Jun 13  2017 jmxremote.password.template
-rw-r--r--  1 root          root           15K Jun 13  2017 management.properties
-r--r--r--  1 root          root          3.3K Jun 13  2017 snmp.acl.template

Note, if you don't have a syndeia-cloud user and group created yet, you can create one via: sudo useradd --system --user-group syndeia-cloud

Note, these settings will affect any app that uses this installation of Java. For a dedicated Syndeia Cloud (SC) instance, setting <user_name> & <group_name> = syndeia-cloud, but this can easily be set to other accounts for other components, ie: Cassandra, Janusgraph, Zookeeper, Kafka, with multiple JRE/JDK installations and usage of a pre-configured -Dcom.sun.management.config.file=/path/to/jmxremote.properties config file

How to disable JMX

6. To disable JMX, perform the following steps. If you are doing this:

6.1 For the first time:

6.1.1 Ensure you have set an environment var for the build version, ex: new_build_version=3.4.SP1_2021-10-14 ; export new_build_version

6.1.2 Run the following command to remove the JMX startup parameters from sc-*.service (use (e)grep to confirm before and after that the parameters have been removed).

sudo egrep -IRwin --color=always -e '-Dcom.sun.management.jmxremote.port=31... -Dcom.sun.management.jmxremote.ssl=false' ~/syndeia-cloud-${SC_snapshot_version}/conf/init/systemd/sc-!(.).service # should return 17 results
sudo sed -i "s/ -Dcom.sun.management.jmxremote.port=31... -Dcom.sun.management.jmxremote.ssl=false//" ~/syndeia-cloud-${SC_snapshot_version}/conf/init/systemd/sc-!(.).service
sudo egrep -IRwin --color=always -e '-Dcom.sun.management.jmxremote.port=31... -Dcom.sun.management.jmxremote.ssl=false' ~/syndeia-cloud-${SC_snapshot_version}/conf/init/systemd/sc-!(.).service # should return 0 results

6.2. After you have installed SC and may have run into service startup issues:

6.2.1 Undo the steps described in the previous section (Appendix C3.5)

Note, this will disable JMX for the JRE/JDK version that you are using and will disable JMX for all JVMs instances that are launched with JMX properties

6.2.2. Run the following command to remove the JMX startup parameters from /etc/systemd/system/sc-*.service (use (e)grep to confirm before and after that the parameters have been removed).

Note, this step requires that you've already completed the SC setup, ie: installed the systemd sc-*.service files in /etc/systemd/system

sudo egrep -IRwin --color=always -e '-Dcom.sun.management.jmxremote.port=31... -Dcom.sun.management.jmxremote.ssl=false' /etc/systemd/system/sc-!(.).service # should return 17 results
sudo sed -i "s/ -Dcom.sun.management.jmxremote.port=31... -Dcom.sun.management.jmxremote.ssl=false//" /etc/systemd/system/sc-!(.).service
sudo egrep -IRwin --color=always -e '-Dcom.sun.management.jmxremote.port=31... -Dcom.sun.management.jmxremote.ssl=false' /etc/systemd/system/sc-!(.).service # should return 0 results

6.2.3. Run sudo systemctl daemon-reload

Appendix D: Setting up Services to Start on Boot

How to create a symlink to syndeia-cloud on Windows

1. From CMD.EXE, run mklink /d <link-location-and-name> <destination>, ex:

C:\Program Files\Intercax>mklink /d "c:\Program Files\Intercax\syndeia-cloud-current" "c:\Program Files\Intercax\syndeia-cloud-2018-03-05"
symbolic link created for c:\Program Files\Intercax\syndeia-cloud-current <<===>> c:\Program Files\Intercax\syndeia-cloud-2018-03-05

Note, to delete or update a directory symlink use rmdir <symlink_name> to delete the existing symlink, do not use del as that will delete the contents of the derefenced directory symlink!

How to create a symlikn to syndeia-cloud on Linux

2. From the CLI, run sudo ln -s <destination> <link-location-and-name>, ex:

$ sudo ln -s /opt/icx/syndeia-cloud-2018-03-05/ /opt/icx/syndeia-cloud-current
$

Note, if successful, you will get no output and just see the command prompt again

How to create a Scheduled Task on Windows to start (single node) Cassandra and Syndeia Cloud on boot

3.1. Launch Task Scheduler
3.2. Click Create Task...

3.3. Click Change User or Group... and specify SYSTEM as the account.

3.4. Click the Trigger tab and create a new trigger of "At startup".

3.5. Click the Actions tab and create one Action of "Start a program" to start Cassandra and specify LEGACY in the Add arguments field and C:\Program Files\apache-cassandra-<version>\bin in the Start in field

Do not encapsulate the Start in path with quotes!

3.6. Click Create Task... and specify a Trigger of "At startup" and two Actions of "Start a program" to start: 1. a script to wait for the Cassandra port, and 2. Syndeia Cloud

a. Action 1: create the following batch file (ex: c:\Program Files\apache-cassandra-<version>\bin\wait_for_cassandra_port.bat)

:while 
netstat -afp tcp | findstr ":9042"
if %errorlevel% NEQ 0 (goto :while)

... and reference it in the "Start a program" Action by specifying c:\Program Files\apache-cassandra-<version>\bin\wait_for_cassandra_port.bat in the Program/script field.

b. Action 2: create a "Start a program" Action to start syndeia-cloud.bat. Make sure this is sequenced after the first action.

To prevent any breakage when Syndeia Cloud is upgraded, reference the symlink path VS the current installed version of Syndeia Cloud (see Appendix D4.1 for more details)

How to create a Scheduled Task on Windows to start (multi node) Cassandra and Syndeia Cloud on boot

4.1. Launch Task Scheduler
4.2. Click Create Task...
4.3. Click Change User or Group... and specify SYSTEM as the account.
4.4. Click the Trigger tab and create a new trigger of "At startup".
4.5. Click the Actions tab and create one Action of "Start a program" to start Cassandra and specify LEGACY in the Add arguments field and C:\Program Files\apache-cassandra-<version>\bin in the Start in field

Do not encapsulate the Start in path with quotes!

4.6. Click Create Task... and specify a Trigger of "At startup" and two Actions to start: 1. a script to wait for the Cassandra port, and 2. Syndeia Cloud

a. Action 1: create the following PowerShell file (ex: c:\Program Files\apache-cassandra-<version>\bin\wait_for_cassandra_remote_port.ps1)

# Replace server.domain with your server FQDN/name
do { 
    $result = Test-NetConnection -ComputerName "server.domain" -Port 9042 -InformationLevel "Quiet"; 
} until ($result)

... and reference it in the "Start a program" Action by specifying C:\Windows\System32\WindowsPowerShell\v1.0\PowerShell.exe in the Program/script field and -file "C:\Program Files\apache-cassandra-3.0.15\bin\wait_for_cassandra_remote_port.ps1" in the Add Arguments field.

b. Action 2: create a "Start a program" Action to start syndeia-cloud.bat. Make sure this is sequenced after the first action.

To prevent any breakage when Syndeia Cloud is upgraded, reference the symlink path VS the current installed version of Syndeia Cloud (see Appendix D4.1 for more details)

Appendix E: Janusgraph

gremlin.bat Patching

1. To patch gremlin.bat to restore batch operation mode please perform the following from an Administrator Cygwin terminal:

1.1 Copy and paste the below into a new file at /opt/janusgraph-current/bin/gremlin.bat.patch ( note, the below was generated against Janusgraph 0.3.1, newer versions may slightly differ):

cassandra.bat.patch

--- gremlin.bat	2018-04-25 21:29:16.000000000 -0400
+++ gremlin_patched.bat	2021-08-19 15:24:06.000000000 -0400
@@ -110,13 +110,28 @@
 
 :script
 
-SET strg=
-
-FOR %%X IN (%*) DO (
-CALL :concat %%X %1 %2
-)
-
-java %JAVA_OPTIONS% %JAVA_ARGS% -cp %CP% org.apache.tinkerpop.gremlin.groovy.jsr223.ScriptExecutor %strg%
+REM 2019-11-21, BKM:  Below changes hae been made to avoid "Error: Could not find or load main class org.apache.tinkerpop.gremlin.console.Console" message
+REM --------------
+REM SET CP=C:\cygwin64\opt\janusgraph-0.3.1-hadoop2\conf;C:\cygwin64\opt\janusgraph-0.3.1-hadoop2\lib\*.jar
+
+SET JAVA_OPTIONS=-server ^
+-Duser.working_dir=c:\Users\Administrator ^
+-Dtinkerpop.ext=c:\cygwin64\opt\janusgraph-0.3.1-hadoop2\ext ^
+-Dlog4j.configuration=conf\log4j-console.properties ^
+-Dgremlin.log4j.level=WARN ^
+-javaagent:C:\cygwin64\opt\janusgraph-0.3.1-hadoop2\lib\jamm-0.3.0.jar ^
+-Dgremlin.io.kryoShimService=org.janusgraph.hadoop.serialize.JanusGraphKryoShimService 
+
+REM SET strg=
+SET strg=%1 %2
+REM FOR %%X IN (%*) DO (
+REM CALL :concat %%X %1 %2
+REM )
+
+REM java %JAVA_OPTIONS% %JAVA_ARGS% -cp %CP% org.apache.tinkerpop.gremlin.groovy.jsr223.ScriptExecutor %strg%
+echo %JAVA_OPTIONS% %JAVA_ARGS% -cp %CP% org.apache.tinkerpop.gremlin.console.Console %strg%
+java %JAVA_OPTIONS% %JAVA_ARGS% -cp %CP% org.apache.tinkerpop.gremlin.console.Console %strg%
+REM --------------
 
 GOTO finally

If it successfully applies you should see something similar to the below:

$ patch -lbNp0 gremlin.bat gremlin.bat.patch 
(Stripping trailing CRs from patch; use --binary to disable.) 
patching file gremlin.bat 
patch unexpectedly ends in middle of line 
Hunk #1 succeeded at 110 with fuzz 2.

1.2 cd in /opt/janusgraph-current/bin, ie: cd /opt/janusgraph-current/bin

1.3 Run patch -lbNp0 gremlin.bat gremlin.bat.patch

1.4 If for whatever reason the patch does not apply please apply it based on the screenshots shown below (L = original, R= modified, red = deletions, green = additions, purple = changes):

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