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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. -- This message was sent by Atlassian JIRA (v6.3.4#6332)