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Date: Mon, 21 Nov 2011 16:30:51 +0000 (UTC)
From: "nkeywal (Updated) (JIRA)" <jira@apache.org>
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Subject: [jira] [Updated] (HBASE-4798) Sleeps and synchronisation
 improvements for tests
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     [ https://issues.apache.org/jira/browse/HBASE-4798?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

nkeywal updated HBASE-4798:
---------------------------

    Release Note: last try on the same patch, but I think it's ok to commit it.
          Status: Patch Available  (was: Open)
    
> 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.v10.patch, 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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