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Kafka, mail # user - Too many open files


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Mark 2013-09-25, 00:33
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Jun Rao 2013-09-25, 04:02
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Mark 2013-09-25, 13:09
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Re: Too many open files
Jun Rao 2013-09-25, 16:07
We haven't seen any socket leaks with the java producer. If you have lots
of unexplained socket connections in established mode, one possible cause
is that the client created new producer instances, but didn't close the old
ones.

Thanks,

Jun
On Wed, Sep 25, 2013 at 6:08 AM, Mark <[EMAIL PROTECTED]> wrote:

> No. We are using the kafka-rb ruby gem producer.
> https://github.com/acrosa/kafka-rb
>
> Now that you asked that question I need to ask. Is there a problem with
> the java producer?
>
> Sent from my iPhone
>
> > On Sep 24, 2013, at 9:01 PM, Jun Rao <[EMAIL PROTECTED]> wrote:
> >
> > Are you using the java producer client?
> >
> > Thanks,
> >
> > Jun
> >
> >
> >> On Tue, Sep 24, 2013 at 5:33 PM, Mark <[EMAIL PROTECTED]>
> wrote:
> >>
> >> Our 0.7.2 Kafka cluster keeps crashing with:
> >>
> >> 2013-09-24 17:21:47,513 -  [kafka-acceptor:Acceptor@153] - Error in
> >> acceptor
> >>        java.io.IOException: Too many open
> >>
> >> The obvious fix is to bump up the number of open files but I'm wondering
> >> if there is a leak on the Kafka side and/or our application side. We
> >> currently have the ulimit set to a generous 4096 but obviously we are
> >> hitting this ceiling. What's a recommended value?
> >>
> >> We are running rails and our Unicorn workers are connecting to our Kafka
> >> cluster via round-robin load balancing. We have about 1500 workers to
> that
> >> would be 1500 connections right there but they should be split across
> our 3
> >> nodes. Instead Netstat shows thousands of connections that look like
> this:
> >>
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.1:22503    ESTABLISHED
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.1:48398    ESTABLISHED
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.2:29617    ESTABLISHED
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.1:32444    ESTABLISHED
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.1:34415    ESTABLISHED
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.1:56901    ESTABLISHED
> >> tcp        0      0 kafka1.mycompany.:XmlIpcRegSvc ::ffff:
> 10.99.99.2:45349    ESTABLISHED
> >>
> >> Has anyone come across this problem before? Is this a 0.7.2 leak, LB
> >> misconfiguration… ?
> >>
> >> Thanks
>

 
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Mark 2013-09-25, 23:30
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Mark 2013-09-25, 23:48
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Jun Rao 2013-09-26, 04:39
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Jun Rao 2013-09-26, 14:38
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Mark 2013-09-26, 22:07
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Mark 2013-09-26, 22:08
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Mark 2013-09-27, 16:35
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Florian Weingarten 2013-10-04, 12:15