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From Cogumelos Maravilha <cogumelosmaravi...@sapo.pt>
Subject Re: Node always dieing
Date Thu, 06 Apr 2017 10:48:35 GMT
Yes C* is running as cassandra:

cassand+  2267     1 99 10:18 ?        00:02:56 java
-Xloggc:/var/log/cassandra/gc.log -ea -XX:+UseThreadPriorities -XX:Threa...

INFO  [main] 2017-04-06 10:35:42,956 Config.java:474 - Node
configuration:[allocate_tokens_for_keyspace=null;
authenticator=PasswordAuthenticator; authorizer=CassandraAuthorizer;
auto_bootstrap=true; auto_snapshot=true; back_pressure_enabled=false;
back_pressure_strategy=org.apache.cassandra.net.RateBasedBackPressure{high_ratio=0.9,
factor=5, flow=FAST}; 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=6000000; cdc_enabled=false;
cdc_free_space_check_interval_ms=250; cdc_raw_directory=null;
cdc_total_space_in_mb=0; client_encryption_options=<REDACTED>;
cluster_name=company; column_index_cache_size_in_kb=2;
column_index_size_in_kb=64; commit_failure_policy=ignore;
commitlog_compression=null;
commitlog_directory=/mnt/cassandra/commitlog;
commitlog_max_compression_buffers_in_pool=3;
commitlog_periodic_queue_size=-1; commitlog_segment_size_in_mb=32;
commitlog_sync=periodic; commitlog_sync_batch_window_in_ms=NaN;
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;
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=null;
counter_write_request_timeout_in_ms=6000000;
credentials_cache_max_entries=1000;
credentials_update_interval_in_ms=-1; credentials_validity_in_ms=2000;
cross_node_timeout=false;
data_file_directories=[Ljava.lang.String;@223f3642;
disk_access_mode=auto; disk_failure_policy=ignore;
disk_optimization_estimate_percentile=0.95;
disk_optimization_page_cross_chance=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; encryption_options=null;
endpoint_snitch=SimpleSnitch; file_cache_size_in_mb=null;
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=/mnt/cassandra/hints; hints_flush_period_in_ms=10000;
incremental_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=dc; internode_recv_buff_size_in_bytes=0;
internode_send_buff_size_in_bytes=0; key_cache_keys_to_save=2147483647;
key_cache_save_period=14400; key_cache_size_in_mb=null;
listen_address=10.100.100.213; 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=0; 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_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; prepared_statements_cache_size_mb=null;
range_request_timeout_in_ms=6000000; read_request_timeout_in_ms=6000000;
request_scheduler=org.apache.cassandra.scheduler.NoScheduler;
request_scheduler_id=null; request_scheduler_options=null;
request_timeout_in_ms=6000000; 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=10.100.100.213; 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=/mnt/cassandra/saved_caches;
seed_provider=org.apache.cassandra.locator.SimpleSeedProvider{seeds=10.100.100.19,
10.100.100.85, 10.100.100.185, 10.100.100.161, 10.100.100.52,
10.100.1000.213}; server_encryption_options=<REDACTED>;
slow_query_log_timeout_in_ms=6000000; 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_keep_alive_period_in_secs=300;
streaming_socket_timeout_in_ms=86400000;
thrift_framed_transport_size_in_mb=15;
thrift_max_message_length_in_mb=16;
thrift_prepared_statements_cache_size_mb=null;
tombstone_failure_threshold=100000; tombstone_warn_threshold=1000;
tracetype_query_ttl=86400; tracetype_repair_ttl=604800;
transparent_data_encryption_options=org.apache.cassandra.config.TransparentDataEncryptionOptions@38c5cc4c;
trickle_fsync=false; trickle_fsync_interval_in_kb=10240;
truncate_request_timeout_in_ms=6000000;
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=6000000]

Thanks

On 04/06/2017 11:30 AM, benjamin roth wrote:
> Have you checked the effective limits of a running CS process?
> Is CS run as Cassandra? Just to rule out missing file perms. 
>
>
> Am 06.04.2017 12:24 schrieb "Cogumelos Maravilha"
> <cogumelosmaravilha@sapo.pt <mailto:cogumelosmaravilha@sapo.pt>>:
>
>     From cassandra.yaml:
>
>     hints_directory: /mnt/cassandra/hints
>     data_file_directories:
>         - /mnt/cassandra/data
>     commitlog_directory: /mnt/cassandra/commitlog
>     saved_caches_directory: /mnt/cassandra/saved_caches
>
>     drwxr-xr-x   3 cassandra cassandra   23 Apr  5 16:03 mnt/
>
>     drwxr-xr-x 6 cassandra cassandra  68 Apr  5 16:17 ./
>     drwxr-xr-x 3 cassandra cassandra  23 Apr  5 16:03 ../
>     drwxr-xr-x 2 cassandra cassandra  80 Apr  6 10:07 commitlog/
>     drwxr-xr-x 8 cassandra cassandra 124 Apr  5 16:17 data/
>     drwxr-xr-x 2 cassandra cassandra  72 Apr  5 16:20 hints/
>     drwxr-xr-x 2 cassandra cassandra  49 Apr  5 20:17 saved_caches/
>
>     cassand+  2267     1 99 10:18 ?        00:02:56 java
>     -Xloggc:/var/log/cassandra/gc.log -ea -XX:+UseThreadPriorities
>     -XX:Threa...
>
>     /dev/mapper/um_vg-xfs_lv  885G   27G  858G   4% /mnt
>
>     On /etc/security/limits.conf
>
>     *           -       memlock      unlimited
>     *           -      nofile      100000
>     *           -      nproc          32768
>     *           -      as           unlimited
>
>     On /etc/security/limits.d/cassandra.conf
>
>     cassandra  -  memlock  unlimited
>     cassandra  -  nofile   100000
>     cassandra  -  as       unlimited
>     cassandra  -  nproc    32768
>
>     On /etc/sysctl.conf
>
>     vm.max_map_count = 1048575
>
>     On /etc/systcl.d/cassanda.conf
>
>     vm.max_map_count = 1048575
>     net.ipv4.tcp_keepalive_time=600
>
>     On /etc/pam.d/su
>     ...
>     session    required   pam_limits.so
>     ...
>
>     Distro is the currently Ubuntu LTS.
>     Thanks
>
>
>
>     On 04/06/2017 10:39 AM, benjamin roth wrote:
>>     Cassandra cannot write an SSTable to disk. Are you sure the
>>     disk/volume where SSTables reside (normally
>>     /var/lib/cassandra/data) is writeable for the CS user and has
>>     enough free space?
>>     The CDC warning also implies that.
>>     The other warnings indicate you are probably not running CS as
>>     root and you did not set an appropriate limit for max open files.
>>     Running out of open files can also be a reason for the IO error.
>>
>>     2017-04-06 11:34 GMT+02:00 Cogumelos Maravilha
>>     <cogumelosmaravilha@sapo.pt <mailto:cogumelosmaravilha@sapo.pt>>:
>>
>>         Hi list,
>>
>>         I'm using C* 3.10 in a 6 nodes cluster RF=2. All instances type
>>         i3.xlarge (AWS) with 32GB, 2 cores and SSD LVM XFS formated
>>         885G. I have
>>         one node that is always dieing and I don't understand why.
>>         Can anyone
>>         give me some hints please. All nodes using the same
>>         configuration.
>>
>>         Thanks in advance.
>>
>>         INFO  [IndexSummaryManager:1] 2017-04-06 05:22:18,352
>>         IndexSummaryRedistribution.java:75 - Redistributing index
>>         summaries
>>         ERROR [MemtablePostFlush:22] 2017-04-06 06:00:26,800
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:22,5,main]
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.FSWriteError:
>>         java.io.IOException: Input/output
>>         error
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:173)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.syncInternal(SequentialWriter.java:185)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter.access$100(CompressedSequentialWriter.java:38)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter$TransactionalProxy.doPrepare(CompressedSequentialWriter.java:307)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.prepareToCommit(SequentialWriter.java:358)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.sstable.format.big.BigTableWriter$TransactionalProxy.doPrepare(BigTableWriter.java:367)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.sstable.format.SSTableWriter.prepareToCommit(SSTableWriter.java:281)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.sstable.SimpleSSTableMultiWriter.prepareToCommit(SimpleSSTableMultiWriter.java:101)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtable(ColumnFamilyStore.java:1153)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1086)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>         ~[na:1.8.0_121]
>>             at
>>         java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>         [na:1.8.0_121]
>>             at
>>         org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79)
>>         [apache-cassandra-3.10.jar:3.10]
>>             at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]
>>         Caused by: java.io.IOException: Input/output error
>>             at sun.nio.ch.FileDispatcherImpl.force0(Native Method)
>>         ~[na:1.8.0_121]
>>             at
>>         sun.nio.ch.FileDispatcherImpl.force(FileDispatcherImpl.java:76)
>>         ~[na:1.8.0_121]
>>             at sun.nio.ch.FileChannelImpl.force(FileChannelImpl.java:388)
>>         ~[na:1.8.0_121]
>>             at
>>         org.apache.cassandra.utils.SyncUtil.force(SyncUtil.java:158)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:169)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             ... 15 common frames omitted
>>         INFO  [IndexSummaryManager:1] 2017-04-06 06:22:18,366
>>         IndexSummaryRedistribution.java:75 - Redistributing index
>>         summaries
>>         ERROR [MemtablePostFlush:31] 2017-04-06 06:39:19,525
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:31,5,main]
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.FSWriteError:
>>         java.io.IOException: Input/output
>>         error
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:173)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.syncInternal(SequentialWriter.java:185)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter.access$100(CompressedSequentialWriter.java:38)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter$TransactionalProxy.doPrepare(CompressedSequentialWriter.java:307)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.prepareToCommit(SequentialWriter.java:358)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.sstable.format.big.BigTableWriter$TransactionalProxy.doPrepare(BigTableWriter.java:367)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.sstable.format.SSTableWriter.prepareToCommit(SSTableWriter.java:281)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io
>>         <http://org.apache.cassandra.io>.sstable.SimpleSSTableMultiWriter.prepareToCommit(SimpleSSTableMultiWriter.java:101)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtable(ColumnFamilyStore.java:1153)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1086)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>>         ~[na:1.8.0_121]
>>             at
>>         java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>>         [na:1.8.0_121]
>>             at
>>         org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79)
>>         [apache-cassandra-3.10.jar:3.10]
>>             at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121]
>>         Caused by: java.io.IOException: Input/output error
>>             at sun.nio.ch.FileDispatcherImpl.force0(Native Method)
>>         ~[na:1.8.0_121]
>>             at
>>         sun.nio.ch.FileDispatcherImpl.force(FileDispatcherImpl.java:76)
>>         ~[na:1.8.0_121]
>>             at sun.nio.ch.FileChannelImpl.force(FileChannelImpl.java:388)
>>         ~[na:1.8.0_121]
>>             at
>>         org.apache.cassandra.utils.SyncUtil.force(SyncUtil.java:158)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             at
>>         org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:169)
>>         ~[apache-cassandra-3.10.jar:3.10]
>>             ... 15 common frames omitted
>>         INFO  [main] 2017-04-06 07:11:57,289
>>         YamlConfigurationLoader.java:89 -
>>         Configuration location: file:/etc/cassandra/cassandra.yaml
>>
>>
>>         Some ERRORs messages:
>>
>>         ERROR [MemtablePostFlush:2] 2017-04-05 23:35:46,339
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:2,5,main]
>>         ERROR [MemtablePostFlush:3] 2017-04-05 23:44:08,471
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:3,5,main]
>>         ERROR [MemtablePostFlush:4] 2017-04-05 23:54:41,224
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:4,5,main]
>>         ERROR [MessagingService-Incoming-/10.0.120.52
>>         <http://10.0.120.52>] 2017-04-06 03:19:13,453
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MessagingService-Incoming-/10.0.120.52
>>         <http://10.0.120.52>,5,main]
>>         ERROR [epollEventLoopGroup-2-6] 2017-04-06 03:24:41,006
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[epollEventLoopGroup-2-6,10,main]
>>         ERROR [Native-Transport-Requests-36] 2017-04-06 03:25:45,915
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-49] 2017-04-06 03:25:45,915
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [IndexSummaryManager:1] 2017-04-06 03:25:45,915
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-69] 2017-04-06 03:25:45,916
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-46] 2017-04-06 03:26:18,465
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [SharedPool-Worker-136] 2017-04-06 03:26:18,465
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-156] 2017-04-06 03:26:18,465
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [SharedPool-Worker-92] 2017-04-06 03:26:24,696
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-48] 2017-04-06 03:26:24,696
>>         ?:? - JVM
>>         state determined to be unstable.  Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-66] 2017-04-06 03:26:55,808
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-77] 2017-04-06 03:26:55,808
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [GossipTasks:1] 2017-04-06 03:26:55,808
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-133] 2017-04-06 03:26:55,808
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-135] 2017-04-06 03:26:55,808
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [ScheduledFastTasks:1] 2017-04-06 03:26:55,808
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-70] 2017-04-06 03:27:11,569
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [IndexSummaryManager:1] 2017-04-06 03:27:17,821
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[IndexSummaryManager:1,1,main]
>>         ERROR [Native-Transport-Requests-103] 2017-04-06 03:27:24,049
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-69] 2017-04-06 03:27:24,049
>>         SEPWorker.java:145 - Failed to execute task, unexpected
>>         exception killed
>>         worker: {}
>>         ERROR [SharedPool-Worker-98] 2017-04-06 03:27:24,049
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [MessagingService-Incoming-/10.0.120.52
>>         <http://10.0.120.52>] 2017-04-06 03:27:55,079
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [epollEventLoopGroup-2-5] 2017-04-06 03:27:55,079
>>         JVMStabilityInspector.java:142 - JVM state determined to be
>>         unstable.
>>         Exiting forcefully due to:
>>         ERROR [Native-Transport-Requests-64] 2017-04-06 03:28:43,285
>>         SEPWorker.java:145 - Failed to execute task, unexpected
>>         exception killed
>>         worker: {}
>>         ERROR [MemtablePostFlush:22] 2017-04-06 06:00:26,800
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:22,5,main]
>>         ERROR [MemtablePostFlush:31] 2017-04-06 06:39:19,525
>>         CassandraDaemon.java:229 - Exception in thread
>>         Thread[MemtablePostFlush:31,5,main]
>>
>>         Also some WARNs:
>>
>>         WARN  [main] 2017-04-06 09:26:49,725 CLibrary.java:178 -
>>         Unable to lock
>>         JVM memory (ENOMEM). This can result in part of the JVM being
>>         swapped
>>         out, especially with mmapped I/O enabled. Increase
>>         RLIMIT_MEMLOCK or run
>>         Cassandra as root.
>>
>>         WARN  [main] 2017-04-06 09:25:07,355 StartupChecks.java:157 -
>>         JMX is not
>>         enabled to receive remote connections. Please see
>>         cassandra-env.sh for
>>         more info.
>>
>>         WARN  [main] 2017-04-06 09:25:07,369 SigarLibrary.java:174 -
>>         Cassandra
>>         server running in degraded mode. Is swap disabled? : true, 
>>         Address
>>         space adequate? : true,  nofile limit adequate? : false,
>>         nproc limit
>>         adequate? : true
>>
>>         WARN  [main] 2017-04-06 09:25:07,091
>>         DatabaseDescriptor.java:493 - Small
>>         cdc volume detected at /var/lib/cassandra/cdc_raw; setting
>>         cdc_total_space_in_mb to 2502.  You can override this in
>>         cassandra.yaml
>>
>>
>>
>
>


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