[ https://issues.apache.org/jira/browse/HBASE-15075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Yu updated HBASE-15075: --------------------------- Attachment: HBASE-15075.v2.patch > Allow region split request to carry metadata > -------------------------------------------- > > Key: HBASE-15075 > URL: https://issues.apache.org/jira/browse/HBASE-15075 > Project: HBase > Issue Type: Improvement > Reporter: Ted Yu > Assignee: Ted Yu > Attachments: 15075-v0.txt, 15075-v1.txt, 15075-v2.txt, > HBASE-15075.v2.patch > > > During the process of improving region normalization feature, I found that if > region split request triggered by the execution of SplitNormalizationPlan > fails, there is no way of knowing whether the failed split originated from > region normalization. > The association of particular split request with outcome of split would give > RegionNormalizer information so that it can make better normalization > decisions in the subsequent invocations. > One approach is to embed metadata in SplitRequest which gets passed through > RegionStateTransitionContext when > RegionServerServices#reportRegionStateTransition() is called. > This way, RegionStateListener can be notified with the metadata (id of the > requester). > See discussion on dev mailing list > http://search-hadoop.com/m/YGbbCXdkivihp2 -- This message was sent by Atlassian JIRA (v6.3.4#6332)