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https://issues.apache.org/jira/browse/HBASE-4798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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nkeywal updated HBASE-4798:
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Status: Open (was: Patch Available)
> Sleeps and synchronisation improvements for tests
> -------------------------------------------------
>
> Key: HBASE-4798
> URL: https://issues.apache.org/jira/browse/HBASE-4798
> Project: HBase
> Issue Type: Improvement
> Components: master, regionserver, test
> Affects Versions: 0.94.0
> Environment: all
> Reporter: nkeywal
> Assignee: nkeywal
> Priority: Minor
> Attachments: 4798_trunk_all.v10.patch, 4798_trunk_all.v10.patch,
> 4798_trunk_all.v2.patch, 4798_trunk_all.v5.patch, 4798_trunk_all.v6.patch,
> 4798_trunk_all.v7.patch
>
>
> Multiple small changes:
> @commiters: Removing some sleeps made visible a bug on
> JVMClusterUtil#HMaster#waitForServerOnline, so I had to add a synchro point.
> You may want to review this.
> JVMClusterUtil#HMaster#waitForServerOnline: removed, the condition was never
> met (test on "!c && !!c"). Added a new synchronization point.
> AssignementManager#waitForAssignment: add a timeout on the wait => not stuck
> if the notification is received before the wait.
> HMaster#loop: use a notification instead of a 1s sleep
> HRegionServer#waitForServerOnline: new method used by
> JVMClusterUtil#waitForServerOnline() to replace a 1s sleep by a notification
> HRegionServer#getMaster() 1s sleeps replaced by one 0,1s sleep and one 0,2s
> sleep
> HRegionServer#stop: use a notification on sleeper to lower shutdown by 0,5s
> ZooKeeperNodeTracker#start: replace a recursive call by a loop
> ZooKeeperNodeTracker#blockUntilAvailable: add a timeout on the wait => not
> stuck if the notification is received before the wait.
> HBaseTestingUtility#expireSession: use a timeout of 1s instead of 5s
> TestZooKeeper#testClientSessionExpired: use a timeout of 1s instead of 5s,
> with the change on HBaseTestingUtility we are 60s faster
> TestRegionRebalancing#waitForAllRegionsAssigned: use a sleep of 0,2s instead
> of 1s
> TestRestartCluster#testClusterRestart: send all the table creation together,
> then check creation, should be faster
> TestHLog: shutdown the whole cluster instead of DFS only (more standard)
> JVMClusterUtil#startup: lower the sleep from 1s to 0,1s
> HConnectionManager#close: Zookeeper name in debug message from
> HConnectionManager after connection close was always null because it was set
> to null in the delete.
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