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https://issues.apache.org/jira/browse/HBASE-15058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15075695#comment-15075695
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Ted Yu commented on HBASE-15058:
--------------------------------
bq. could we use it directly in RS
If RS updates quota info, master needs to be notified of the change, right ?
Currently NamespaceStateManager is on Master only.
The above proposal is a big change.
[~avandana]:
What do you think ?
> NamespaceAuditor should account for unsuccessful split which initially passes
> quota check
> -----------------------------------------------------------------------------------------
>
> Key: HBASE-15058
> URL: https://issues.apache.org/jira/browse/HBASE-15058
> Project: HBase
> Issue Type: Bug
> Reporter: Ted Yu
>
> When region split doesn't pass quota check, we would see exception similar to
> the following:
> {code}
> 2015-12-29 16:07:33,653 INFO [RS:0;10.21.128.189:57449-splits-1451434041585]
> regionserver.SplitRequest(97): Running rollback/cleanup of failed split of
> np2:
> testRegionNormalizationSplitOnCluster,zzzzz,1451434045065.27cccb3fae03002b8058beef61cb7c20.;
> Failed to get ok from master to split
> np2:testRegionNormalizationSplitOnCluster,
> zzzzz,1451434045065.27cccb3fae03002b8058beef61cb7c20.
> java.io.IOException: Failed to get ok from master to split
> np2:testRegionNormalizationSplitOnCluster,zzzzz,1451434045065.27cccb3fae03002b8058beef61cb7c20.
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.stepsBeforePONR(SplitTransactionImpl.java:345)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.createDaughters(SplitTransactionImpl.java:262)
> at
> org.apache.hadoop.hbase.regionserver.SplitTransactionImpl.execute(SplitTransactionImpl.java:502)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.doSplitting(SplitRequest.java:82)
> at
> org.apache.hadoop.hbase.regionserver.SplitRequest.run(SplitRequest.java:155)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> {code}
> However, region split may fail for subsequent SplitTransactionPhase's in
> stepsBeforePONR().
> Currently there is no mechanism to rollback the update to namespace quota.
> When region split fails, NamespaceAuditor should account for the failure so
> that quota bookkeeping is consistent.
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