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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-990) NoSuchElementException in flushSomeRegions
Date Tue, 18 Nov 2008 06:11:44 GMT

    [ https://issues.apache.org/jira/browse/HBASE-990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12648504#action_12648504
] 

stack commented on HBASE-990:
-----------------------------

I see.  Looks like we succeed the first time through the loop at #229 but if we keep going
around without freeing enough memory, eventually we'll empty the Map and get a NSSE.  Silly
mistake.

> NoSuchElementException in flushSomeRegions
> ------------------------------------------
>
>                 Key: HBASE-990
>                 URL: https://issues.apache.org/jira/browse/HBASE-990
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.19.0
>
>
> From Billy
> {code}
> 2008-11-10 18:14:53,157 INFO org.apache.hadoop.ipc.Server: IPC Server handler 69 on 60020,
call batchUpdates([B@68e97c, [Lorg.apache.hadoop.hbase.io.BatchUpdate;@1b8e8d2) from 192.168.1.201:37077:
error: java.io.IOException: java.util.NoSuchElementException
> java.io.IOException: java.util.NoSuchElementException
>        at java.util.TreeMap.key(TreeMap.java:1206)
>        at java.util.TreeMap.firstKey(TreeMap.java:267)
>        at org.apache.hadoop.hbase.regionserver.MemcacheFlusher.flushSomeRegions(MemcacheFlusher.java:227)
>        at org.apache.hadoop.hbase.regionserver.MemcacheFlusher.reclaimMemcacheMemory(MemcacheFlusher.java:213)
>        at org.apache.hadoop.hbase.regionserver.HRegionServer.batchUpdates(HRegionServer.java:1227)
>        at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>        at java.lang.reflect.Method.invoke(Method.java:597)
>        at org.apache.hadoop.hbase.ipc.HbaseRPC$Server.call(HbaseRPC.java:634)
>        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:888) 
> {code}

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