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HBase >> mail # user >> responseTooSlow


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Mohit Anchlia 2012-12-21, 20:39
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Mohammad Tariq 2012-12-21, 22:38
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Mohammad Tariq 2012-12-21, 22:54
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Mohit Anchlia 2012-12-21, 23:06
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Mohammad Tariq 2012-12-21, 23:26
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Mohit Anchlia 2012-12-21, 23:53
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Mohammad Tariq 2012-12-22, 00:16
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Mohit Anchlia 2012-12-22, 01:27
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Mohammad Tariq 2012-12-22, 12:12
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Re: responseTooSlow
How many threads are doing the puts?
Is there some flushes happening parallely?  Are there too many scans going
on in paralle.

Increasing the Xceivers could solve this problem if they are of shortage.

Regards
Ram

On Sat, Dec 22, 2012 at 5:42 PM, Mohammad Tariq <[EMAIL PROTECTED]> wrote:

> yeah
>
> Best Regards,
> Tariq
> +91-9741563634
> https://mtariq.jux.com/
>
>
> On Sat, Dec 22, 2012 at 6:57 AM, Mohit Anchlia <[EMAIL PROTECTED]
> >wrote:
>
> > You mean batch multiple put?
> >
> > On Fri, Dec 21, 2012 at 4:16 PM, Mohammad Tariq <[EMAIL PROTECTED]>
> > wrote:
> >
> > > It might be the RS which could not complete the operation in time. The
> > > appropriate way to find out is to monitor that RS's metrics and see if
> > > anything unusual is happening there. What type of keys are you using?
> It
> > is
> > > time-series data?You might be a victim of RS hotspotting in that case
> or
> > > perhaps some other processes are eating up resources there. Try using
> > > "put(List<Put> puts)" instead of "put(Put put)" and see if it makes any
> > > difference.
> > >
> > > I'm afraid, I can't say anything with 100% confidence as there could be
> > 'n'
> > > reasons which are not traceable from here. Some of the possible reasons
> > > could be :
> > > hotspotting region
> > > too much I/O wait due to Swapping
> > > overloaded disk
> > > slowness due to high cpu consumption
> > >
> > > Best Regards,
> > > Tariq
> > > +91-9741563634
> > > https://mtariq.jux.com/
> > >
> > >
> > > On Sat, Dec 22, 2012 at 5:23 AM, Mohit Anchlia <[EMAIL PROTECTED]
> > > >wrote:
> > >
> > > > I am just doing a put. This operation generally takes 10ms but in
> this
> > > case
> > > > it took more than 10sec. Nothing out of ordinary in the logs
> > > >
> > > > On Fri, Dec 21, 2012 at 3:26 PM, Mohammad Tariq <[EMAIL PROTECTED]>
> > > > wrote:
> > > >
> > > > > what exactly is the operation your trying to do?how is your
> network's
> > > > > health?is swapping too high at RS side?anything odd in your RS
> logs?
> > > > >
> > > > > Best Regards,
> > > > > Tariq
> > > > > +91-9741563634
> > > > > https://mtariq.jux.com/
> > > > >
> > > > >
> > > > > On Sat, Dec 22, 2012 at 4:36 AM, Mohit Anchlia <
> > [EMAIL PROTECTED]
> > > > > >wrote:
> > > > >
> > > > > > I looked at that link, but couldn't find anything useful. How do
> I
> > > > check
> > > > > if
> > > > > > it was client who didn't write data within that time or if it was
> > > > region
> > > > > > server that didn't finish operation in time.
> > > > > >
> > > > > > On Fri, Dec 21, 2012 at 2:54 PM, Mohammad Tariq <
> > [EMAIL PROTECTED]>
> > > > > > wrote:
> > > > > >
> > > > > > > The socket through which your client is communicating is
> getting
> > > > closed
> > > > > > > before the operation could get finished. May be it is taking
> > longer
> > > > > than
> > > > > > > usual or something.
> > > > > > >
> > > > > > > Best Regards,
> > > > > > > Tariq
> > > > > > > +91-9741563634
> > > > > > > https://mtariq.jux.com/
> > > > > > >
> > > > > > >
> > > > > > >  On Sat, Dec 22, 2012 at 4:08 AM, Mohammad Tariq <
> > > [EMAIL PROTECTED]
> > > > >
> > > > > > > wrote:
> > > > > > >
> > > > > > > > Hello Mohit,
> > > > > > > >
> > > > > > > >       You might this link<
> > > > > > > http://hbase.apache.org/book/ops.monitoring.html>useful.
> > > > > > > >
> > > > > > > > Best Regards,
> > > > > > > > Tariq
> > > > > > > > +91-9741563634
> > > > > > > > https://mtariq.jux.com/
> > > > > > > >
> > > > > > > >
> > > > > > > > On Sat, Dec 22, 2012 at 2:09 AM, Mohit Anchlia <
> > > > > [EMAIL PROTECTED]
> > > > > > > >wrote:
> > > > > > > >
> > > > > > > >> Could someone help me understand what this really means. Is
> > this
> > > > the
> > > > > > > >> network transfer taking long from client -> server or region
> > > > server
> > > > > > > taking
> > > > > > > >> long time writing to the memory?
> > > > > > > >>
> > > > > > > >> 2012-12-21 10:54:21,980 WARN
> > org.apache.hadoop.ipc.HBaseServer:
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Mohit Anchlia 2012-12-22, 16:11
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ramkrishna vasudevan 2012-12-22, 16:47
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Azuryy Yu 2012-12-23, 01:50