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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2013/02/25 21:56:14 UTC
[jira] [Resolved] (HBASE-7507) Make memstore flush be able to retry
after exception
[ https://issues.apache.org/jira/browse/HBASE-7507?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-7507.
--------------------------
Resolution: Fixed
This was committed to trunk a while back. A new issue just committed it to 0.94. Resolving.
> Make memstore flush be able to retry after exception
> ----------------------------------------------------
>
> Key: HBASE-7507
> URL: https://issues.apache.org/jira/browse/HBASE-7507
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.3
> Reporter: chunhui shen
> Assignee: chunhui shen
> Priority: Critical
> Fix For: 0.96.0, 0.94.6
>
> Attachments: 7507-94.patch, 7507-trunk v1.patch, 7507-trunk v2.patch, 7507-trunkv3.patch
>
>
> We will abort regionserver if memstore flush throws exception.
> I thinks we could do retry to make regionserver more stable because file system may be not ok in a transient time. e.g. Switching namenode in the NamenodeHA environment
> {code}
> HRegion#internalFlushcache(){
> ...
> try {
> ...
> }catch(Throwable t){
> DroppedSnapshotException dse = new DroppedSnapshotException("region: " +
> Bytes.toStringBinary(getRegionName()));
> dse.initCause(t);
> throw dse;
> }
> ...
> }
> MemStoreFlusher#flushRegion(){
> ...
> region.flushcache();
> ...
> try {
> }catch(DroppedSnapshotException ex){
> server.abort("Replay of HLog required. Forcing server shutdown", ex);
> }
> ...
> }
> {code}
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