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HDFS, mail # dev - Re: [jira] [Created] (HDFS-4824) FileInputStreamCache.close leaves dangling reference to FileInputStreamCache.cacheCleaner


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Re: [jira] [Created] (HDFS-4824) FileInputStreamCache.close leaves dangling reference to FileInputStreamCache.cacheCleaner
Colin McCabe 2013-05-15, 23:47
Hi Shouvanik,

Why not try asking the Talend community?

Also, this question belongs on the user list.

thanks,
Colin
On Wed, May 15, 2013 at 4:20 AM, Shouvanik Haldar <
[EMAIL PROTECTED]> wrote:

> Hi,
>
> I am facing a problem.
>
> I am using Talend for scheduling and running a job. But, I am getting a
> error. can anybody please help.
>
> [2013-05-15 16:30:59]Deploying job to Hadoop...
> [2013-05-15 16:31:08]Deployment failed!
> [2013-05-15 16:31:08]Can not access Hadoop File System with user root!
> [2013-05-15 16:31:08]Server IPC version 7 cannot communicate with client
> version 4
>
> Regards,
> Shouvanik
>
>
> On Wed, May 15, 2013 at 3:55 AM, Henry Robinson (JIRA) <[EMAIL PROTECTED]
> >wrote:
>
> > Henry Robinson created HDFS-4824:
> > ------------------------------------
> >
> >              Summary: FileInputStreamCache.close leaves dangling
> reference
> > to FileInputStreamCache.cacheCleaner
> >                  Key: HDFS-4824
> >                  URL: https://issues.apache.org/jira/browse/HDFS-4824
> >              Project: Hadoop HDFS
> >           Issue Type: Bug
> >           Components: hdfs-client
> >     Affects Versions: 2.0.4-alpha
> >             Reporter: Henry Robinson
> >             Assignee: Colin Patrick McCabe
> >
> >
> > {{FileInputStreamCache}} leaves around a reference to its
> {{cacheCleaner}}
> > after {{close()}}.
> >
> > The {{cacheCleaner}} is created like this:
> >
> > {code}
> > if (cacheCleaner == null) {
> >           cacheCleaner = new CacheCleaner();
> >           executor.scheduleAtFixedRate(cacheCleaner, expiryTimeMs,
> > expiryTimeMs,
> >               TimeUnit.MILLISECONDS);
> >         }
> > {code}
> >
> > and supposedly removed like this:
> >
> > {code}
> > if (cacheCleaner != null) {
> >   executor.remove(cacheCleaner);
> > }
> > {code}
> >
> > However, {{ScheduledThreadPoolExecutor.remove}} returns a success boolean
> > which should be checked. And I _think_ from a quick read of that class
> that
> > the return value of {{scheduleAtFixedRate}} should be used as the
> argument
> > to {{remove}}.
> >
> > --
> > This message is automatically generated by JIRA.
> > If you think it was sent incorrectly, please contact your JIRA
> > administrators
> > For more information on JIRA, see:
> http://www.atlassian.com/software/jira
> >
>
>
>
> --
> Thanks,
> *Shouvanik*
>