[
https://issues.apache.org/jira/browse/HBASE-22862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16909770#comment-16909770
]
Alex Batyrshin edited comment on HBASE-22862 at 8/17/19 5:15 PM:
-----------------------------------------------------------------
Error occurs on MemStore flush.
Looks like replay from WAL has no error.
Latest log dump with crash and WAL replays:
{code}
2019-08-16 09:36:40,926 FATAL [MemStoreFlusher.1] regionserver.HRegionServer:
ABORTING region server prod004,60020,1565928847135: Replay of WAL required.
Forcing server shutdown
org.apache.hadoop.hbase.DroppedSnapshotException: region:
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2675)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
at
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Added a key not lexically larger than previous.
Current cell =
\x1100000090013098!>ct94a/d:apd/1565936313172/DeleteColumn/vlen=0/seqid=38334251,
lastCell =
\x1100000090013098!>ct94a/d:apd/1565936313172/Put/vlen=12/seqid=38338239
at
org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
at
org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
at
org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
at
org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
at
org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
at
org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
at
org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
at
org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
... 9 more
2019-08-16 09:36:41,516 INFO [RS_CLOSE_REGION-prod004:60020-1]
regionserver.HRegion: Closed
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
<RESTART>
2019-08-16 09:36:54,944 INFO
[RpcServer.priority.FPBQ.Fifo.handler=19,queue=1,port=60020]
regionserver.RSRpcServices: Open
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
2019-08-16 09:37:39,164 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Replaying edits from
hdfs://motp02/hbase/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/recovered.edits/0000000000038324857
...
2019-08-16 09:38:24,017 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Replaying edits from
hdfs://motp02/hbase/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/recovered.edits/0000000000038340778
2019-08-16 09:38:27,185 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Flushing 1/1 column families, memstore=53.96 MB; WAL is
null, using passed sequenceid=38340778
2019-08-16 09:38:29,203 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.DefaultStoreFlusher: Flushed, sequenceid=38340778, memsize=54.0 M,
hasBloomFilter=false, into tmp file
hdfs://motp02/hbase/data/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/.tmp/b8d1e9859cab41e9900b326ce5f65ab2
2019-08-16 09:38:29,258 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HStore: Added
hdfs://motp02/hbase/data/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/d/b8d1e9859cab41e9900b326ce5f65ab2,
entries=457848, sequenceid=38340778, filesize=6.6 M
2019-08-16 09:38:29,259 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Finished memstore flush of ~53.96 MB/56580048,
currentsize=0 B/0 for region
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
in 2074ms, sequenceid=38340778, compaction requested=true; wal=null
2019-08-16 09:38:29,328 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Onlined ec69674133ba425f63cedfc686b70823; next
sequenceid=38340779
2019-08-16 09:38:29,353 INFO
[PostOpenDeployTasks:ec69674133ba425f63cedfc686b70823]
regionserver.HRegionServer: Post open deploy tasks for
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
2019-08-16 09:38:29,356 INFO
[regionserver/prod004/10.73.67.84:60020-shortCompactions-1565937415376]
regionserver.HRegion: Starting compaction on d in region
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
2019-08-16 09:38:29,356 INFO
[regionserver/prod004/10.73.67.84:60020-shortCompactions-1565937415376]
regionserver.HStore: Starting compaction of 3 file(s) in d of
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
into
tmpdir=hdfs://motp02/hbase/data/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/.tmp,
totalSize=44.7 M
2019-08-16 09:38:29,381 INFO
[PostOpenDeployTasks:ec69674133ba425f63cedfc686b70823] hbase.MetaTableAccessor:
Updated row
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
with server=prod004,60020,1565937407427
2019-08-16 09:38:36,514 INFO
[regionserver/prod004/10.73.67.84:60020-shortCompactions-1565937415376]
regionserver.HStore: Completed compaction of 3 file(s) in d of
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
into 31c12a445ccf4e94b31acafabf28515d(size=44.1 M), total size for store is
2.3 G. This selection was in queue for 0sec, and took 7sec to execute.
{code}
was (Author: 0x62ash):
Error occurs on MemStore flush.
Looks like replay from WAL has no error.
Latest log dump with crush and replays:
{code}
2019-08-16 09:36:40,926 FATAL [MemStoreFlusher.1] regionserver.HRegionServer:
ABORTING region server prod004,60020,1565928847135: Replay of WAL required.
Forcing server shutdown
org.apache.hadoop.hbase.DroppedSnapshotException: region:
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2675)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
at
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Added a key not lexically larger than previous.
Current cell =
\x1100000090013098!>ct94a/d:apd/1565936313172/DeleteColumn/vlen=0/seqid=38334251,
lastCell =
\x1100000090013098!>ct94a/d:apd/1565936313172/Put/vlen=12/seqid=38338239
at
org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
at
org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
at
org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
at
org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
at
org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
at
org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
at
org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
at
org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
... 9 more
2019-08-16 09:36:41,516 INFO [RS_CLOSE_REGION-prod004:60020-1]
regionserver.HRegion: Closed
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
<RESTART>
2019-08-16 09:36:54,944 INFO
[RpcServer.priority.FPBQ.Fifo.handler=19,queue=1,port=60020]
regionserver.RSRpcServices: Open
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
2019-08-16 09:37:39,164 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Replaying edits from
hdfs://motp02/hbase/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/recovered.edits/0000000000038324857
...
2019-08-16 09:38:24,017 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Replaying edits from
hdfs://motp02/hbase/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/recovered.edits/0000000000038340778
2019-08-16 09:38:27,185 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Flushing 1/1 column families, memstore=53.96 MB; WAL is
null, using passed sequenceid=38340778
2019-08-16 09:38:29,203 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.DefaultStoreFlusher: Flushed, sequenceid=38340778, memsize=54.0 M,
hasBloomFilter=false, into tmp file
hdfs://motp02/hbase/data/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/.tmp/b8d1e9859cab41e9900b326ce5f65ab2
2019-08-16 09:38:29,258 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HStore: Added
hdfs://motp02/hbase/data/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/d/b8d1e9859cab41e9900b326ce5f65ab2,
entries=457848, sequenceid=38340778, filesize=6.6 M
2019-08-16 09:38:29,259 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Finished memstore flush of ~53.96 MB/56580048,
currentsize=0 B/0 for region
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
in 2074ms, sequenceid=38340778, compaction requested=true; wal=null
2019-08-16 09:38:29,328 INFO [RS_OPEN_REGION-prod004:60020-2]
regionserver.HRegion: Onlined ec69674133ba425f63cedfc686b70823; next
sequenceid=38340779
2019-08-16 09:38:29,353 INFO
[PostOpenDeployTasks:ec69674133ba425f63cedfc686b70823]
regionserver.HRegionServer: Post open deploy tasks for
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
2019-08-16 09:38:29,356 INFO
[regionserver/prod004/10.73.67.84:60020-shortCompactions-1565937415376]
regionserver.HRegion: Starting compaction on d in region
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
2019-08-16 09:38:29,356 INFO
[regionserver/prod004/10.73.67.84:60020-shortCompactions-1565937415376]
regionserver.HStore: Starting compaction of 3 file(s) in d of
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
into
tmpdir=hdfs://motp02/hbase/data/default/TBL_TABLE_CODE/ec69674133ba425f63cedfc686b70823/.tmp,
totalSize=44.7 M
2019-08-16 09:38:29,381 INFO
[PostOpenDeployTasks:ec69674133ba425f63cedfc686b70823] hbase.MetaTableAccessor:
Updated row
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
with server=prod004,60020,1565937407427
2019-08-16 09:38:36,514 INFO
[regionserver/prod004/10.73.67.84:60020-shortCompactions-1565937415376]
regionserver.HStore: Completed compaction of 3 file(s) in d of
TBL_TABLE_CODE,\x1100000090011599kySHLF;,1561791629538.ec69674133ba425f63cedfc686b70823.
into 31c12a445ccf4e94b31acafabf28515d(size=44.1 M), total size for store is
2.3 G. This selection was in queue for 0sec, and took 7sec to execute.
{code}
> Region Server crash with: Added a key not lexically larger than previous
> ------------------------------------------------------------------------
>
> Key: HBASE-22862
> URL: https://issues.apache.org/jira/browse/HBASE-22862
> Project: HBase
> Issue Type: Bug
> Components: regionserver
> Affects Versions: 1.4.10
> Environment: {code}
> openjdk version "1.8.0_181"
> OpenJDK Runtime Environment (Zulu 8.31.0.1-linux64) (build 1.8.0_181-b02)
> OpenJDK 64-Bit Server VM (Zulu 8.31.0.1-linux64) (build 25.181-b02, mixed
> mode)
> {code}
> Reporter: Alex Batyrshin
> Priority: Critical
>
> We observe error "Added a key not lexically larger than previous” that cause
> most of our region-servers to crash in our cluster.
> {code}
> 2019-08-15 18:02:10,554 INFO [MemStoreFlusher.0] regionserver.HRegion:
> Flushing 1/1 column families, memstore=56.08 MB
> 2019-08-15 18:02:10,727 WARN [MemStoreFlusher.0] regionserver.HStore: Failed
> flushing store file, retrying num=0
> java.io.IOException: Added a key not lexically larger than previous. Current
> cell =
> \x0901820448218>wGavb'/d:elr/1565881054828/DeleteColumn/vlen=0/seqid=44456567,
> lastCell =
> \x0901820448218>wGavb'/d:elr/1565881054828/Put/vlen=1/seqid=44457770
> at
> org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
> at
> org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
> at
> org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
> at
> org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
> at
> org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
> at
> org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
> at
> org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
> at java.lang.Thread.run(Thread.java:748)
> 2019-08-15 18:02:21,776 WARN [MemStoreFlusher.0] regionserver.HStore: Failed
> flushing store file, retrying num=9
> java.io.IOException: Added a key not lexically larger than previous. Current
> cell =
> \x0901820448218>wGavb'/d:elr/1565881054828/DeleteColumn/vlen=0/seqid=44456567,
> lastCell =
> \x0901820448218>wGavb'/d:elr/1565881054828/Put/vlen=1/seqid=44457770
> at
> org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
> at
> org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
> at
> org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
> at
> org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
> at
> org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
> at
> org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
> at
> org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
> at java.lang.Thread.run(Thread.java:748)
> 2019-08-15 18:02:21,777 FATAL [MemStoreFlusher.0] regionserver.HRegionServer:
> ABORTING region server prod006,60020,1565873610692: Replay of WAL required.
> Forcing server shutdown
> org.apache.hadoop.hbase.DroppedSnapshotException: region:
> TBL_TABLE_CODE,\x0904606203097821slG=sPD,1563070299676.5110b3395ca64a51cea99c6572a4c3d9.
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2675)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2352)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2314)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2200)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2125)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:512)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:482)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher.access$900(MemStoreFlusher.java:76)
> at
> org.apache.hadoop.hbase.regionserver.MemStoreFlusher$FlushHandler.run(MemStoreFlusher.java:264)
> at java.lang.Thread.run(Thread.java:748)
> Caused by: java.io.IOException: Added a key not lexically larger than
> previous. Current cell =
> \x0901820448218>wGavb'/d:elr/1565881054828/DeleteColumn/vlen=0/seqid=44456567,
> lastCell =
> \x0901820448218>wGavb'/d:elr/1565881054828/Put/vlen=1/seqid=44457770
> at
> org.apache.hadoop.hbase.io.hfile.AbstractHFileWriter.checkKey(AbstractHFileWriter.java:204)
> at
> org.apache.hadoop.hbase.io.hfile.HFileWriterV2.append(HFileWriterV2.java:279)
> at
> org.apache.hadoop.hbase.io.hfile.HFileWriterV3.append(HFileWriterV3.java:87)
> at
> org.apache.hadoop.hbase.regionserver.StoreFile$Writer.append(StoreFile.java:1127)
> at
> org.apache.hadoop.hbase.regionserver.StoreFlusher.performFlush(StoreFlusher.java:139)
> at
> org.apache.hadoop.hbase.regionserver.DefaultStoreFlusher.flushSnapshot(DefaultStoreFlusher.java:75)
> at
> org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:1003)
> at
> org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.flushCache(HStore.java:2523)
> at
> org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2622)
> ... 9 more
> {code}
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