Ted Yu created HBASE-15058:
------------------------------
Summary: 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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