Duo Zhang created HBASE-21144:
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Summary: AssignmentManager.waitForAssignment is not stable
Key: HBASE-21144
URL: https://issues.apache.org/jira/browse/HBASE-21144
Project: HBase
Issue Type: Bug
Reporter: Duo Zhang
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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