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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-13219) Issues with PE tool in trunk
Date Fri, 13 Mar 2015 17:35:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-13219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14360723#comment-14360723

Nicolas Liochon commented on HBASE-13219:

bq. What was the behavior before HBASE-11390? Multiple connections?

Yeah, exactly. I kept it to make comparison between multiple versions possible.
It can help to find some bottlenecks (multiple connections means multiple tcp connections,
multiple pools and so on).

But simplicity is good as well, so both options are ok to me.

> Issues with PE tool in trunk
> ----------------------------
>                 Key: HBASE-13219
>                 URL: https://issues.apache.org/jira/browse/HBASE-13219
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 2.0.0
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>         Attachments: t1
> -> PE tool tries to create the TEstTable and waits for it to be enabled and just hangs
> Previously this was not happening and the PE tool used to run fine after the table creation.
> -> When we try to scan with 25 threads the PE tool fails after some time saying Unable
to create native threads.
> I lost the Stack trace now. But I could get it easily.  It happens here 
> {code}
>   public void submit(RetryingCallable<V> task, int callTimeout, int id) {
>     QueueingFuture<V> newFuture = new QueueingFuture<V>(task, callTimeout);
>     executor.execute(Trace.wrap(newFuture));
>     tasks[id] = newFuture;
>   }
> {code}
> in ResultBoundedCompletionService. This is also new.  Previously it used to work with
25 threads without any issues. 

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