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From "Stephen Yuan Jiang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-13733) failed MiniZooKeeperCluster startup not shut down ZK servers
Date Thu, 21 May 2015 17:40:18 GMT

     [ https://issues.apache.org/jira/browse/HBASE-13733?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Stephen Yuan Jiang updated HBASE-13733:
---------------------------------------
    Status: Open  (was: Patch Available)

> failed MiniZooKeeperCluster startup not shut down ZK servers
> ------------------------------------------------------------
>
>                 Key: HBASE-13733
>                 URL: https://issues.apache.org/jira/browse/HBASE-13733
>             Project: HBase
>          Issue Type: Bug
>          Components: Zookeeper
>    Affects Versions: 1.1.0, 2.0.0, 1.2.0
>            Reporter: Stephen Yuan Jiang
>            Assignee: Stephen Yuan Jiang
>             Fix For: 2.0.0, 1.2.0, 1.1.1
>
>         Attachments: HBASE-13733.v1.patch
>
>
> MiniZooKeeperCluster#startup() starts servers one-by-one, if everything is good, it would
declare success of start:
> {code}
>   public int startup(File baseDir, int numZooKeeperServers) 
>     ...
>     // running all the ZK servers
>     for (int i = 0; i < numZooKeeperServers; i++) {
>     ...===> could throw exception in the loop and end the startup
>       // Start up this ZK server
>       standaloneServerFactory.startup(server);
>       ...
>       standaloneServerFactoryList.add(standaloneServerFactory);
>       zooKeeperServers.add(server);
>     }
>    ...
>     started = true;
>     ...
>   }
> {code}
> However, if exception throws in the middle of start up (eg. some servers already started),
the MiniZooKeeperCluster#shutdown() would not shut down them and clean up resources.  
> {code}
>   public void shutdown() throws IOException {
>     if (!started) {
>       return;
>     }
>     ...
>   }
> {code}



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