[ https://issues.apache.org/jira/browse/HBASE-1459?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-1459. -------------------------- Resolution: Cannot Reproduce stale > CME during memcache flush forces HRS shutdown > --------------------------------------------- > > Key: HBASE-1459 > URL: https://issues.apache.org/jira/browse/HBASE-1459 > Project: HBase > Issue Type: Bug > Components: regionserver > Affects Versions: 0.19.1 > Reporter: Rong-En Fan > > I just saw this on my 0.19.1 cluster: > 2009-05-30 03:57:19,559 FATAL > org.apache.hadoop.hbase.regionserver.MemcacheFlusher: Replay of hlog > required. Forcing server shutdown > org.apache.hadoop.hbase.DroppedSnapshotException: region: > table,rowkey,1243547152622 > at > org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:897) > at > org.apache.hadoop.hbase.regionserver.HRegion.flushcache(HRegion.java:790) > at > org.apache.hadoop.hbase.regionserver.MemcacheFlusher.flushRegion(MemcacheFlusher.java:228) > at > org.apache.hadoop.hbase.regionserver.MemcacheFlusher.run(MemcacheFlusher.java:138) > Caused by: java.util.ConcurrentModificationException > at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1100) > at java.util.TreeMap$EntryIterator.next(TreeMap.java:1136) > at java.util.TreeMap$EntryIterator.next(TreeMap.java:1131) > at > org.apache.hadoop.hbase.regionserver.HStore.internalFlushCache(HStore.java:678) > at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:636) > at > org.apache.hadoop.hbase.regionserver.HRegion.internalFlushcache(HRegion.java:882) > ... 3 more -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira