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https://issues.apache.org/jira/browse/HBASE-21144?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Duo Zhang updated HBASE-21144:
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Attachment: (was: HBASE-21172-v3.patch)
> AssignmentManager.waitForAssignment is not stable
> -------------------------------------------------
>
> Key: HBASE-21144
> URL: https://issues.apache.org/jira/browse/HBASE-21144
> Project: HBase
> Issue Type: Bug
> Components: amv2, test
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: 3.0.0, 2.2.0, 2.1.1, 2.0.3
>
> Attachments: HBASE-21144-addendum.patch,
> HBASE-21144-branch-2.1.patch, HBASE-21144-v1.patch, HBASE-21144.patch
>
>
> https://builds.apache.org/job/HBase-Flaky-Tests/job/master/366/artifact/hbase-server/target/surefire-reports/org.apache.hadoop.hbase.client.TestMetaWithReplicas-output.txt/*view*/
> All replicas for meta table are on the same machine
> {noformat}
> 2018-09-02 19:49:05,486 DEBUG [RS_OPEN_META-regionserver/asf904:0-0]
> handler.OpenRegionHandler(127): Opened hbase:meta,,1.1588230740 on
> asf904.gq1.ygridcore.net,47561,1535917740998
> 2018-09-02 19:49:32,802 DEBUG [RS_OPEN_META-regionserver/asf904:0-0]
> handler.OpenRegionHandler(127): Opened hbase:meta,,1_0001.534574363 on
> asf904.gq1.ygridcore.net,55408,1535917768453
> 2018-09-02 19:49:33,496 DEBUG [RS_OPEN_META-regionserver/asf904:0-0]
> handler.OpenRegionHandler(127): Opened hbase:meta,,1_0002.1657623790 on
> asf904.gq1.ygridcore.net,55408,1535917768453
> {noformat}
> But after calling am.waitForAssignment, the region location is still null...
> {noformat}
> 2018-09-02 19:49:32,414 INFO [Time-limited test]
> client.TestMetaWithReplicas(113): HBASE:META DEPLOY:
> hbase:meta,,1_0001.534574363 on null
> 2018-09-02 19:49:32,844 INFO [Time-limited test]
> client.TestMetaWithReplicas(113): HBASE:META DEPLOY:
> hbase:meta,,1_0002.1657623790 on null
> {noformat}
> So we will not balance the replicas and cause TestMetaWithReplicas to hang
> forever...
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