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Posted to commits@cassandra.apache.org by "Jeff Jirsa (JIRA)" <ji...@apache.org> on 2017/11/29 22:30:00 UTC
[jira] [Updated] (CASSANDRA-14010) NullPointerException when
creating keyspace
[ https://issues.apache.org/jira/browse/CASSANDRA-14010?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jeff Jirsa updated CASSANDRA-14010:
-----------------------------------
Component/s: Distributed Metadata
> NullPointerException when creating keyspace
> -------------------------------------------
>
> Key: CASSANDRA-14010
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14010
> Project: Cassandra
> Issue Type: Bug
> Components: Distributed Metadata
> Reporter: Jonathan Pellby
> Fix For: 3.11.x, 4.x
>
>
> We have a test environment were we drop and create keyspaces and tables several times within a short time frame. Since upgrading from 3.11.0 to 3.11.1, we are seeing a lot of create statements failing. See the logs below:
> {code:java}
> 2017-11-13T14:29:20.037986449Z WARN Directory /tmp/ramdisk/commitlog doesn't exist
> 2017-11-13T14:29:20.038009590Z WARN Directory /tmp/ramdisk/saved_caches doesn't exist
> 2017-11-13T14:29:20.094337265Z INFO Initialized prepared statement caches with 10 MB (native) and 10 MB (Thrift)
> 2017-11-13T14:29:20.805946340Z INFO Initializing system.IndexInfo
> 2017-11-13T14:29:21.934686905Z INFO Initializing system.batches
> 2017-11-13T14:29:21.973914733Z INFO Initializing system.paxos
> 2017-11-13T14:29:21.994550268Z INFO Initializing system.local
> 2017-11-13T14:29:22.014097194Z INFO Initializing system.peers
> 2017-11-13T14:29:22.124211254Z INFO Initializing system.peer_events
> 2017-11-13T14:29:22.153966833Z INFO Initializing system.range_xfers
> 2017-11-13T14:29:22.174097334Z INFO Initializing system.compaction_history
> 2017-11-13T14:29:22.194259920Z INFO Initializing system.sstable_activity
> 2017-11-13T14:29:22.210178271Z INFO Initializing system.size_estimates
> 2017-11-13T14:29:22.223836992Z INFO Initializing system.available_ranges
> 2017-11-13T14:29:22.237854207Z INFO Initializing system.transferred_ranges
> 2017-11-13T14:29:22.253995621Z INFO Initializing system.views_builds_in_progress
> 2017-11-13T14:29:22.264052481Z INFO Initializing system.built_views
> 2017-11-13T14:29:22.283334779Z INFO Initializing system.hints
> 2017-11-13T14:29:22.304110311Z INFO Initializing system.batchlog
> 2017-11-13T14:29:22.318031950Z INFO Initializing system.prepared_statements
> 2017-11-13T14:29:22.326547917Z INFO Initializing system.schema_keyspaces
> 2017-11-13T14:29:22.337097407Z INFO Initializing system.schema_columnfamilies
> 2017-11-13T14:29:22.354082675Z INFO Initializing system.schema_columns
> 2017-11-13T14:29:22.384179063Z INFO Initializing system.schema_triggers
> 2017-11-13T14:29:22.394222027Z INFO Initializing system.schema_usertypes
> 2017-11-13T14:29:22.414199833Z INFO Initializing system.schema_functions
> 2017-11-13T14:29:22.427205182Z INFO Initializing system.schema_aggregates
> 2017-11-13T14:29:22.427228345Z INFO Not submitting build tasks for views in keyspace system as storage service is not initialized
> 2017-11-13T14:29:22.652838866Z INFO Scheduling approximate time-check task with a precision of 10 milliseconds
> 2017-11-13T14:29:22.732862906Z INFO Initializing system_schema.keyspaces
> 2017-11-13T14:29:22.746598744Z INFO Initializing system_schema.tables
> 2017-11-13T14:29:22.759649011Z INFO Initializing system_schema.columns
> 2017-11-13T14:29:22.766245435Z INFO Initializing system_schema.triggers
> 2017-11-13T14:29:22.778716809Z INFO Initializing system_schema.dropped_columns
> 2017-11-13T14:29:22.791369819Z INFO Initializing system_schema.views
> 2017-11-13T14:29:22.839141724Z INFO Initializing system_schema.types
> 2017-11-13T14:29:22.852911976Z INFO Initializing system_schema.functions
> 2017-11-13T14:29:22.852938112Z INFO Initializing system_schema.aggregates
> 2017-11-13T14:29:22.869348526Z INFO Initializing system_schema.indexes
> 2017-11-13T14:29:22.874178682Z INFO Not submitting build tasks for views in keyspace system_schema as storage service is not initialized
> 2017-11-13T14:29:23.700250435Z INFO Initializing key cache with capacity of 25 MBs.
> 2017-11-13T14:29:23.724357053Z INFO Initializing row cache with capacity of 0 MBs
> 2017-11-13T14:29:23.724383599Z INFO Initializing counter cache with capacity of 12 MBs
> 2017-11-13T14:29:23.724386906Z INFO Scheduling counter cache save to every 7200 seconds (going to save all keys).
> 2017-11-13T14:29:23.984408710Z INFO Populating token metadata from system tables
> 2017-11-13T14:29:24.032687075Z INFO Global buffer pool is enabled, when pool is exhausted (max is 125.000MiB) it will allocate on heap
> 2017-11-13T14:29:24.214123695Z INFO Token metadata:
> 2017-11-13T14:29:24.304218769Z INFO Completed loading (14 ms; 8 keys) KeyCache cache
> 2017-11-13T14:29:24.363978406Z INFO No commitlog files found; skipping replay
> 2017-11-13T14:29:24.364005238Z INFO Populating token metadata from system tables
> 2017-11-13T14:29:24.394408476Z INFO Token metadata:
> 2017-11-13T14:29:24.709411652Z INFO Preloaded 0 prepared statements
> 2017-11-13T14:29:24.719332880Z INFO Cassandra version: 3.11.1
> 2017-11-13T14:29:24.719355969Z INFO Thrift API version: 20.1.0
> 2017-11-13T14:29:24.719359443Z INFO CQL supported versions: 3.4.4 (default: 3.4.4)
> 2017-11-13T14:29:24.719362103Z INFO Native protocol supported versions: 3/v3, 4/v4, 5/v5-beta (default: 4/v4)
> 2017-11-13T14:29:24.766102400Z INFO Initializing index summary manager with a memory pool size of 25 MB and a resize interval of 60 minutes
> 2017-11-13T14:29:24.778800183Z INFO Starting Messaging Service on /172.17.0.2:7000 (eth0)
> 2017-11-13T14:29:24.783832188Z WARN No host ID found, created 62452b7c-33ae-40e6-859c-1d7c803aaea8 (Note: This should happen exactly once per node).
> 2017-11-13T14:29:24.897281778Z INFO Loading persisted ring state
> 2017-11-13T14:29:24.904217782Z INFO Starting up server gossip
> 2017-11-13T14:29:25.003802973Z INFO This node will not auto bootstrap because it is configured to be a seed node.
> 2017-11-13T14:29:25.047674499Z INFO Generated random tokens. tokens are [-6736304773851341012, 3437071596424929702, 4372058337604769145, -306854781937968525, -4419476154597297006, 4339837665480866486, 2052026232731139893, -5761537575805252593, -4477540978357776290, 6263754683045286998, 3670054894619378302, -4326549778810780939, 7187409938161102814, 7030537377703307755, -2757270254308154659, -1953637968902719055, -7235425703069930259, 7123794193321014835, 349308827967095711, 997472983569031481, 992257140226393205, -4045122629441468253, 4149955653388319941, -3690032393349188278, 3528068129562283633, -5057394127379238561, -4944743272177354946, 1371473468273321389, -2771267888257678908, -2379074055482922854, 8800628062632970014, 6016352719444925532, -6458243637210081043, -7131512441131507433, -6135681286390467242, -7886878247827491401, -3964432859204941604, -7124853795154335905, 4536647221115220987, 4518363137218750861, -3945920538919881061, -8569890499152898728, -2228677668104169495, 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> 2017-11-13T14:29:25.092248590Z INFO Create new Keyspace: KeyspaceMetadata{name=system_traces, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=2}}, tables=[org.apache.cassandra.config.CFMetaData@3bc5ed95[cfId=c5e99f16-8677-3914-b17e-960613512345,ksName=system_traces,cfName=sessions,flags=[COMPOUND],params=TableParams{comment=tracing sessions, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=0, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [client command coordinator duration request started_at parameters]],partitionKeyColumns=[session_id],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.UUIDType,columnMetadata=[client, command, session_id, coordinator, request, started_at, duration, parameters],droppedColumns={},triggers=[],indexes=[]], org.apache.cassandra.config.CFMetaData@1a296ffd[cfId=8826e8e9-e16a-3728-8753-3bc1fc713c25,ksName=system_traces,cfName=events,flags=[COMPOUND],params=TableParams{comment=tracing events, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=0, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(org.apache.cassandra.db.marshal.TimeUUIDType),partitionColumns=[[] | [activity source source_elapsed thread]],partitionKeyColumns=[session_id],clusteringColumns=[event_id],keyValidator=org.apache.cassandra.db.marshal.UUIDType,columnMetadata=[activity, event_id, session_id, source, thread, source_elapsed],droppedColumns={},triggers=[],indexes=[]]], views=[], functions=[], types=[]}
> 2017-11-13T14:29:25.394141160Z INFO Not submitting build tasks for views in keyspace system_traces as storage service is not initialized
> 2017-11-13T14:29:25.408584506Z INFO Initializing system_traces.events
> 2017-11-13T14:29:25.424314845Z INFO Initializing system_traces.sessions
> 2017-11-13T14:29:25.483133136Z INFO Create new Keyspace: KeyspaceMetadata{name=system_distributed, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=3}}, tables=[org.apache.cassandra.config.CFMetaData@2884b38b[cfId=759fffad-624b-3181-80ee-fa9a52d1f627,ksName=system_distributed,cfName=repair_history,flags=[COMPOUND],params=TableParams{comment=Repair history, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(org.apache.cassandra.db.marshal.TimeUUIDType),partitionColumns=[[] | [coordinator exception_message exception_stacktrace finished_at parent_id range_begin range_end started_at status participants]],partitionKeyColumns=[keyspace_name, columnfamily_name],clusteringColumns=[id],keyValidator=org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type),columnMetadata=[status, id, coordinator, finished_at, participants, exception_stacktrace, parent_id, range_end, range_begin, exception_message, keyspace_name, started_at, columnfamily_name],droppedColumns={},triggers=[],indexes=[]], org.apache.cassandra.config.CFMetaData@7fcc80b2[cfId=deabd734-b99d-3b9c-92e5-fd92eb5abf14,ksName=system_distributed,cfName=parent_repair_history,flags=[COMPOUND],params=TableParams{comment=Repair history, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [exception_message exception_stacktrace finished_at keyspace_name started_at columnfamily_names options requested_ranges successful_ranges]],partitionKeyColumns=[parent_id],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.TimeUUIDType,columnMetadata=[requested_ranges, exception_message, keyspace_name, successful_ranges, started_at, finished_at, options, exception_stacktrace, parent_id, columnfamily_names],droppedColumns={},triggers=[],indexes=[]], org.apache.cassandra.config.CFMetaData@7e500004[cfId=5582b59f-8e4e-35e1-b913-3acada51eb04,ksName=system_distributed,cfName=view_build_status,flags=[COMPOUND],params=TableParams{comment=Materialized View build status, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(org.apache.cassandra.db.marshal.UUIDType),partitionColumns=[[] | [status]],partitionKeyColumns=[keyspace_name, view_name],clusteringColumns=[host_id],keyValidator=org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type),columnMetadata=[view_name, status, keyspace_name, host_id],droppedColumns={},triggers=[],indexes=[]]], views=[], functions=[], types=[]}
> 2017-11-13T14:29:25.598604284Z INFO Not submitting build tasks for views in keyspace system_distributed as storage service is not initialized
> 2017-11-13T14:29:25.602132560Z INFO Initializing system_distributed.parent_repair_history
> 2017-11-13T14:29:25.624580018Z INFO Initializing system_distributed.repair_history
> 2017-11-13T14:29:25.624605811Z INFO Initializing system_distributed.view_build_status
> 2017-11-13T14:29:25.682205208Z INFO JOINING: Finish joining ring
> 2017-11-13T14:29:25.808448539Z INFO Create new Keyspace: KeyspaceMetadata{name=system_auth, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=1}}, tables=[org.apache.cassandra.config.CFMetaData@3c28c0da[cfId=5bc52802-de25-35ed-aeab-188eecebb090,ksName=system_auth,cfName=roles,flags=[COMPOUND],params=TableParams{comment=role definitions, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=7776000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [can_login is_superuser salted_hash member_of]],partitionKeyColumns=[role],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.UTF8Type,columnMetadata=[salted_hash, member_of, role, can_login, is_superuser],droppedColumns={},triggers=[],indexes=[]], org.apache.cassandra.config.CFMetaData@2e0f771e[cfId=0ecdaa87-f8fb-3e60-88d1-74fb36fe5c0d,ksName=system_auth,cfName=role_members,flags=[COMPOUND],params=TableParams{comment=role memberships lookup table, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=7776000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(org.apache.cassandra.db.marshal.UTF8Type),partitionColumns=[[] | []],partitionKeyColumns=[role],clusteringColumns=[member],keyValidator=org.apache.cassandra.db.marshal.UTF8Type,columnMetadata=[role, member],droppedColumns={},triggers=[],indexes=[]], org.apache.cassandra.config.CFMetaData@4fabdebb[cfId=3afbe79f-2194-31a7-add7-f5ab90d8ec9c,ksName=system_auth,cfName=role_permissions,flags=[COMPOUND],params=TableParams{comment=permissions granted to db roles, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=7776000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(org.apache.cassandra.db.marshal.UTF8Type),partitionColumns=[[] | [permissions]],partitionKeyColumns=[role],clusteringColumns=[resource],keyValidator=org.apache.cassandra.db.marshal.UTF8Type,columnMetadata=[role, resource, permissions],droppedColumns={},triggers=[],indexes=[]], org.apache.cassandra.config.CFMetaData@7103b8de[cfId=5f2fbdad-91f1-3946-bd25-d5da3a5c35ec,ksName=system_auth,cfName=resource_role_permissons_index,flags=[COMPOUND],params=TableParams{comment=index of db roles with permissions granted on a resource, read_repair_chance=0.0, dclocal_read_repair_chance=0.0, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=7776000, default_time_to_live=0, memtable_flush_period_in_ms=3600000, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(org.apache.cassandra.db.marshal.UTF8Type),partitionColumns=[[] | []],partitionKeyColumns=[resource],clusteringColumns=[role],keyValidator=org.apache.cassandra.db.marshal.UTF8Type,columnMetadata=[resource, role],droppedColumns={},triggers=[],indexes=[]]], views=[], functions=[], types=[]}
> 2017-11-13T14:29:25.934019252Z INFO Not submitting build tasks for views in keyspace system_auth as storage service is not initialized
> 2017-11-13T14:29:25.953887674Z INFO Initializing system_auth.resource_role_permissons_index
> 2017-11-13T14:29:25.957358898Z INFO Initializing system_auth.role_members
> 2017-11-13T14:29:25.967935061Z INFO Initializing system_auth.role_permissions
> 2017-11-13T14:29:25.995449692Z INFO Initializing system_auth.roles
> 2017-11-13T14:29:26.193856408Z INFO Netty using native Epoll event loop
> 2017-11-13T14:29:26.247676724Z INFO 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]
> 2017-11-13T14:29:26.247705469Z INFO Starting listening for CQL clients on /0.0.0.0:9042 (unencrypted)...
> 2017-11-13T14:29:26.309591159Z INFO Not starting RPC server as requested. Use JMX (StorageService->startRPCServer()) or nodetool (enablethrift) to start it
> 2017-11-13T14:29:36.275846037Z INFO Created default superuser role 'cassandra'
> 2017-11-13T14:29:40.333918591Z INFO Create new Keyspace: KeyspaceMetadata{name=my_keyspace, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=1}}, tables=[], views=[], functions=[], types=[]}
> 2017-11-13T14:29:40.434399612Z INFO Create new table: org.apache.cassandra.config.CFMetaData@c74a94b[cfId=1572b410-c87f-11e7-9db1-6d2c86545d91,ksName=my_keyspace,cfName=schema_version,flags=[COMPOUND],params=TableParams{comment=, read_repair_chance=0.0, dclocal_read_repair_chance=0.1, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=0, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [migration_lock version]],partitionKeyColumns=[id],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.Int32Type,columnMetadata=[migration_lock, version, id],droppedColumns={},triggers=[],indexes=[]]
> 2017-11-13T14:29:40.566922871Z INFO Initializing my_keyspace.schema_version
> 2017-11-13T14:29:42.719380089Z INFO Drop Keyspace 'my_keyspace'
> 2017-11-13T14:29:43.124510221Z INFO Create new Keyspace: KeyspaceMetadata{name=my_keyspace, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=1}}, tables=[], views=[], functions=[], types=[]}
> 2017-11-13T14:29:43.243928493Z INFO Create new table: org.apache.cassandra.config.CFMetaData@1a0616e9[cfId=171e8f50-c87f-11e7-9db1-6d2c86545d91,ksName=my_keyspace,cfName=schema_version,flags=[COMPOUND],params=TableParams{comment=, read_repair_chance=0.0, dclocal_read_repair_chance=0.1, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=0, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [migration_lock version]],partitionKeyColumns=[id],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.Int32Type,columnMetadata=[migration_lock, version, id],droppedColumns={},triggers=[],indexes=[]]
> 2017-11-13T14:29:43.284700491Z INFO Initializing my_keyspace.schema_version
> 2017-11-13T14:29:44.706916652Z INFO Drop Keyspace 'my_keyspace'
> 2017-11-13T14:29:44.924446999Z INFO Create new Keyspace: KeyspaceMetadata{name=my_keyspace, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=1}}, tables=[], views=[], functions=[], types=[]}
> 2017-11-13T14:29:44.993983743Z INFO Create new table: org.apache.cassandra.config.CFMetaData@7338ccab[cfId=182996b0-c87f-11e7-9db1-6d2c86545d91,ksName=my_keyspace,cfName=schema_version,flags=[COMPOUND],params=TableParams{comment=, read_repair_chance=0.0, dclocal_read_repair_chance=0.1, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=0, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [migration_lock version]],partitionKeyColumns=[id],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.Int32Type,columnMetadata=[migration_lock, version, id],droppedColumns={},triggers=[],indexes=[]]
> 2017-11-13T14:29:45.078407254Z INFO Initializing my_keyspace.schema_version
> 2017-11-13T14:29:46.244137923Z INFO Drop Keyspace 'my_keyspace'
> 2017-11-13T14:29:46.500351100Z INFO Create new Keyspace: KeyspaceMetadata{name=my_keyspace, params=KeyspaceParams{durable_writes=true, replication=ReplicationParams{class=org.apache.cassandra.locator.SimpleStrategy, replication_factor=1}}, tables=[], views=[], functions=[], types=[]}
> 2017-11-13T14:29:46.575419551Z INFO Create new table: org.apache.cassandra.config.CFMetaData@229f3694[cfId=191b97d0-c87f-11e7-9db1-6d2c86545d91,ksName=my_keyspace,cfName=schema_version,flags=[COMPOUND],params=TableParams{comment=, read_repair_chance=0.0, dclocal_read_repair_chance=0.1, bloom_filter_fp_chance=0.01, crc_check_chance=1.0, gc_grace_seconds=864000, default_time_to_live=0, memtable_flush_period_in_ms=0, min_index_interval=128, max_index_interval=2048, speculative_retry=99PERCENTILE, caching={'keys' : 'ALL', 'rows_per_partition' : 'NONE'}, compaction=CompactionParams{class=org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy, options={min_threshold=4, max_threshold=32}}, compression=org.apache.cassandra.schema.CompressionParams@4c3448a7, extensions={}, cdc=false},comparator=comparator(),partitionColumns=[[] | [migration_lock version]],partitionKeyColumns=[id],clusteringColumns=[],keyValidator=org.apache.cassandra.db.marshal.Int32Type,columnMetadata=[migration_lock, version, id],droppedColumns={},triggers=[],indexes=[]]
> 2017-11-13T14:29:46.617101680Z ERROR Unexpected error during query
> 2017-11-13T14:29:46.617126436Z java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
> 2017-11-13T14:29:46.617130194Z at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:404) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617133358Z at org.apache.cassandra.service.MigrationManager.announce(MigrationManager.java:549) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617135966Z at org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:356) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617138576Z at org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:341) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617141018Z at org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:321) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617143454Z at org.apache.cassandra.cql3.statements.CreateTableStatement.announceMigration(CreateTableStatement.java:89) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617145953Z at org.apache.cassandra.cql3.statements.SchemaAlteringStatement.execute(SchemaAlteringStatement.java:93) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617148372Z at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:224) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617150806Z at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:255) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617153201Z at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:240) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617155595Z at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:116) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617157962Z at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:517) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617160377Z at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:410) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617162787Z at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.617166295Z at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.617168898Z at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.617171389Z at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:348) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.617173808Z at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_131]
> 2017-11-13T14:29:46.617184008Z at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617186971Z at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617189340Z at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
> 2017-11-13T14:29:46.617191666Z Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
> 2017-11-13T14:29:46.617193951Z at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.617196258Z at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.617198553Z at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:400) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617200927Z ... 20 common frames omitted
> 2017-11-13T14:29:46.617203114Z Caused by: java.lang.NullPointerException: null
> 2017-11-13T14:29:46.617205382Z at org.apache.cassandra.cql3.UntypedResultSet$Row.getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617207766Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspaceParams(SchemaKeyspace.java:956) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617210107Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspace(SchemaKeyspace.java:943) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617212462Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspacesOnly(SchemaKeyspace.java:937) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617214868Z at org.apache.cassandra.schema.SchemaKeyspace.mergeSchema(SchemaKeyspace.java:1363) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617217261Z at org.apache.cassandra.schema.SchemaKeyspace.mergeSchemaAndAnnounceVersion(SchemaKeyspace.java:1342) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617220404Z at org.apache.cassandra.service.MigrationManager$1.runMayThrow(MigrationManager.java:567) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617222948Z at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617225287Z at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_131]
> 2017-11-13T14:29:46.617227589Z at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.617229894Z at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.617232175Z at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.617234514Z at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.617236990Z ... 1 common frames omitted
> 2017-11-13T14:29:46.621331936Z ERROR Exception in thread Thread[MigrationStage:1,5,main]
> 2017-11-13T14:29:46.621360645Z java.lang.NullPointerException: null
> 2017-11-13T14:29:46.621364339Z at org.apache.cassandra.cql3.UntypedResultSet$Row.getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621373614Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspaceParams(SchemaKeyspace.java:956) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621376363Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspace(SchemaKeyspace.java:943) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621378927Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspacesOnly(SchemaKeyspace.java:937) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621381395Z at org.apache.cassandra.schema.SchemaKeyspace.mergeSchema(SchemaKeyspace.java:1363) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621384992Z at org.apache.cassandra.schema.SchemaKeyspace.mergeSchemaAndAnnounceVersion(SchemaKeyspace.java:1342) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621387567Z at org.apache.cassandra.service.MigrationManager$1.runMayThrow(MigrationManager.java:567) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621390255Z at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621392722Z at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.621395153Z at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.621397502Z at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.621399919Z at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_131]
> 2017-11-13T14:29:46.621402347Z at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.621404867Z at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.626625652Z ERROR Unexpected exception during request
> 2017-11-13T14:29:46.626650886Z java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.NullPointerException
> 2017-11-13T14:29:46.626654840Z at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:404) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626658003Z at org.apache.cassandra.service.MigrationManager.announce(MigrationManager.java:549) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626660570Z at org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:356) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626663155Z at org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:341) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626665745Z at org.apache.cassandra.service.MigrationManager.announceNewColumnFamily(MigrationManager.java:321) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626676412Z at org.apache.cassandra.cql3.statements.CreateTableStatement.announceMigration(CreateTableStatement.java:89) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626679497Z at org.apache.cassandra.cql3.statements.SchemaAlteringStatement.execute(SchemaAlteringStatement.java:93) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626682051Z at org.apache.cassandra.cql3.QueryProcessor.processStatement(QueryProcessor.java:224) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626684610Z at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:255) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626687059Z at org.apache.cassandra.cql3.QueryProcessor.process(QueryProcessor.java:240) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626689495Z at org.apache.cassandra.transport.messages.QueryMessage.execute(QueryMessage.java:116) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626691956Z at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:517) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626694391Z at org.apache.cassandra.transport.Message$Dispatcher.channelRead0(Message.java:410) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626696869Z at io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:105) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.626700811Z at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:357) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.626703433Z at io.netty.channel.AbstractChannelHandlerContext.access$600(AbstractChannelHandlerContext.java:35) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.626705926Z at io.netty.channel.AbstractChannelHandlerContext$7.run(AbstractChannelHandlerContext.java:348) [netty-all-4.0.44.Final.jar:4.0.44.Final]
> 2017-11-13T14:29:46.626708464Z at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_131]
> 2017-11-13T14:29:46.626710858Z at org.apache.cassandra.concurrent.AbstractLocalAwareExecutorService$FutureTask.run(AbstractLocalAwareExecutorService.java:162) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626713448Z at org.apache.cassandra.concurrent.SEPWorker.run(SEPWorker.java:109) [apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626715868Z at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
> 2017-11-13T14:29:46.626718281Z Caused by: java.util.concurrent.ExecutionException: java.lang.NullPointerException
> 2017-11-13T14:29:46.626720647Z at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.626723006Z at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.626725392Z at org.apache.cassandra.utils.FBUtilities.waitOnFuture(FBUtilities.java:400) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626727820Z ... 20 common frames omitted
> 2017-11-13T14:29:46.626730100Z Caused by: java.lang.NullPointerException: null
> 2017-11-13T14:29:46.626735106Z at org.apache.cassandra.cql3.UntypedResultSet$Row.getBoolean(UntypedResultSet.java:273) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626737800Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspaceParams(SchemaKeyspace.java:956) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626740362Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspace(SchemaKeyspace.java:943) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626742804Z at org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspacesOnly(SchemaKeyspace.java:937) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626745273Z at org.apache.cassandra.schema.SchemaKeyspace.mergeSchema(SchemaKeyspace.java:1363) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626747719Z at org.apache.cassandra.schema.SchemaKeyspace.mergeSchemaAndAnnounceVersion(SchemaKeyspace.java:1342) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626750759Z at org.apache.cassandra.service.MigrationManager$1.runMayThrow(MigrationManager.java:567) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626753445Z at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626755900Z at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_131]
> 2017-11-13T14:29:46.626758684Z at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.626761055Z at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.626763436Z at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_131]
> 2017-11-13T14:29:46.626765871Z at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:81) ~[apache-cassandra-3.11.1.jar:3.11.1]
> 2017-11-13T14:29:46.626768418Z ... 1 common frames omitted{code}
> Steps to reproduce:
> 1. Start cassandra
> 2. Start cqlsh and paste the following in quick succession:
> {code:java}
> USE system;
> DROP KEYSPACE IF EXISTS my_keyspace;
> CREATE KEYSPACE my_keyspace WITH replication = { 'class': 'SimpleStrategy', 'replication_factor': 1};
> USE my_keyspace;
> CREATE TABLE schema_version (id int primary key, version int, migration_lock text);
> INSERT INTO schema_version (id, version) values (1, 0);{code}
> 3. Once fourth time or so , we'll see:
> {code:java}
> cqlsh:system> CREATE KEYSPACE my_keyspace WITH replication = { 'class': 'SimpleStrategy', 'replication_factor': 1};
> ServerError: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.NullPointerException{code}
> or
> {code:java}
> cqlsh:my_keyspace> CREATE TABLE schema_version (id int primary key, version int, migration_lock text);
> ServerError: java.lang.RuntimeException: java.util.concurrent.ExecutionException: java.lang.NullPointerException{code}
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