Reid Chan created HBASE-22667:
---------------------------------
Summary: [Flush] NPE when region flushs
Key: HBASE-22667
URL: https://issues.apache.org/jira/browse/HBASE-22667
Project: HBase
Issue Type: Bug
Reporter: Reid Chan
{code}
2019-07-09 08:02:14,262 FATAL
org.apache.hadoop.hbase.regionserver.HRegionServer: ABORTING region server
hadoop290.bx.momo.com,16020,1562233574704: Replay of WAL required. Forcing
server shutdown
org.apache.hadoop.hbase.DroppedSnapshotException: region:
online:al_user_session_mapping,963,1562296120996.b8e2f19748d374d192b93f106a0f73b3.
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2646)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2322)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:2284)
at
org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:2170)
at org.apache.hadoop.hbase.regionserver.HRegion.flush(HRegion.java:2095)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:508)
at
org.apache.hadoop.hbase.regionserver.MemStoreFlusher.flushRegion(MemStoreFlusher.java:478)
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:745)
Caused by: java.lang.NullPointerException
at java.util.ArrayList.<init>(ArrayList.java:177)
at
org.apache.hadoop.hbase.regionserver.StoreScanner.updateReaders(StoreScanner.java:863)
at
org.apache.hadoop.hbase.regionserver.HStore.notifyChangedReadersObservers(HStore.java:1172)
at
org.apache.hadoop.hbase.regionserver.HStore.updateStorefiles(HStore.java:1145)
at
org.apache.hadoop.hbase.regionserver.HStore.access$900(HStore.java:122)
at
org.apache.hadoop.hbase.regionserver.HStore$StoreFlusherImpl.commit(HStore.java:2505)
at
org.apache.hadoop.hbase.regionserver.HRegion.internalFlushCacheAndCommit(HRegion.java:2600)
... 9 more
{code}
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