[jira] [Created] (ACCUMULO-3082) MAC processes still hang around when termination doesn't finish in 30s

["Josh Elser (JIRA)" <ji...@apache.org>]

Josh Elser created ACCUMULO-3082:
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             Summary: MAC processes still hang around when termination doesn't finish in 30s
                 Key: ACCUMULO-3082
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3082
             Project: Accumulo
          Issue Type: Bug
          Components: mini
            Reporter: Josh Elser
             Fix For: 1.5.2, 1.6.1, 1.7.0


I added some support in ACCUMULO-2764 which executes the {{Process.destroy()}} and {{Process.waitFor()}} that we call to stop the MAC processes with a timeout to prevent the Maven build from hanging indefinitely.

However, when we hit the timeout...

{noformat}
2014-08-24 04:49:36,370 [impl.MiniAccumuloClusterImpl] WARN : Master did not fully stop after 30 seconds
java.util.concurrent.TimeoutException
        at java.util.concurrent.FutureTask.get(FutureTask.java:201)
        at org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImpl.stopProcessWithTimeout(MiniAccumuloClusterImpl.java:755)
        at org.apache.accumulo.minicluster.impl.MiniAccumuloClusterImpl.stop(MiniAccumuloClusterImpl.java:645)
        at org.apache.accumulo.minicluster.impl.MiniAccumuloClusterGCTest.tea
{noformat}

The processes will hang around on the host system.

Need to get:

# Better diagnosis of why exactly the destroy and waitFor doesn't return
# (try to?) Guarantee 100% cleanup of processes when {{MiniAccumuloCluster.stop()}} is called.



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