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Mikhail Antonov commented on HBASE-11290: ----------------------------------------- Kicking out of 1.3 :( feel free to pull it back if you feel like > Unlock RegionStates > ------------------- > > Key: HBASE-11290 > URL: https://issues.apache.org/jira/browse/HBASE-11290 > Project: HBase > Issue Type: Sub-task > Affects Versions: 1.2.0, 1.3.0 > Reporter: Francis Liu > Assignee: Francis Liu > Fix For: 2.0.0, 1.4.0, 0.98.20 > > Attachments: HBASE-11290-0.98.patch, HBASE-11290-0.98_v2.patch, > HBASE-11290.draft.patch, HBASE-11290_trunk.patch > > > Even though RegionStates is a highly accessed data structure in HMaster. Most > of it's methods are synchronized. Which limits concurrency. Even simply > making some of the getters non-synchronized by using concurrent data > structures has helped with region assignments. We can go as simple as this > approach or create locks per region or a bucket lock per region bucket. -- This message was sent by Atlassian JIRA (v6.3.4#6332)