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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HBASE-1072) Change Thread.join on exit to a timed Thread.join
Date Fri, 26 Dec 2008 22:43:44 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack reassigned HBASE-1072:
----------------------------

    Assignee: stack

> Change Thread.join on exit to a timed Thread.join
> -------------------------------------------------
>
>                 Key: HBASE-1072
>                 URL: https://issues.apache.org/jira/browse/HBASE-1072
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>             Fix For: 0.19.0
>
>         Attachments: 1072.patch
>
>
> Here is a hungup regionserver stuck on the running of the dfs shutdown thread:
> {code}
> "Thread-11" prio=10 tid=0x00007fcd00a9b400 nid=0x751d waiting on condition [0x0000000042458000..0x0000000042458d00]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
>         at java.lang.Thread.sleep(Native Method)
>         at org.apache.hadoop.ipc.Client.stop(Client.java:667)
>         at org.apache.hadoop.ipc.RPC$ClientCache.stopClient(RPC.java:189)
>         at org.apache.hadoop.ipc.RPC$ClientCache.access$400(RPC.java:138)
>         at org.apache.hadoop.ipc.RPC$Invoker.close(RPC.java:229)
>         - locked <0x00007fcd06c6b470> (a org.apache.hadoop.ipc.RPC$Invoker)
>         at org.apache.hadoop.ipc.RPC$Invoker.access$500(RPC.java:196)
>         at org.apache.hadoop.ipc.RPC.stopProxy(RPC.java:353)
>         at org.apache.hadoop.hdfs.DFSClient.close(DFSClient.java:213)
>         - locked <0x00007fcd06c6b3a0> (a org.apache.hadoop.hdfs.DFSClient)
>         at org.apache.hadoop.hdfs.DistributedFileSystem.close(DistributedFileSystem.java:243)
>         at org.apache.hadoop.fs.FileSystem$Cache.closeAll(FileSystem.java:1413)
>         - locked <0x00007fcd06ab9b68> (a org.apache.hadoop.fs.FileSystem$Cache)
>         at org.apache.hadoop.fs.FileSystem.closeAll(FileSystem.java:236)
>         at org.apache.hadoop.fs.FileSystem$ClientFinalizer.run(FileSystem.java:221)
>         - locked <0x00007fcd06aaeee0> (a org.apache.hadoop.fs.FileSystem$ClientFinalizer)
> {code}
> Above is just doing this:
> {code}
>     // wait until all connections are closed
>     while (!connections.isEmpty()) {
>       try {
>         Thread.sleep(100);
>       } catch (InterruptedException e) {
>       }
>     }
> {code}
> Might never go down or wont' go down promptly.
> Should interrupt threads if join timesout and just continue with exit.

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