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From Ted Yu <yuzhih...@gmail.com>
Subject Re: Warning messages in hbase logs
Date Wed, 25 Sep 2013 05:06:57 GMT
The slow response was from this method in HRegionServer:
  public <R> MultiResponse multi(MultiAction<R> multi) throws IOException {

You can capture a few jstack's of the HRegionServer process and see what
could be the cause.

You can pastebin the stack traces.

What HBase version are you using ?

Cheers


On Tue, Sep 24, 2013 at 9:50 PM, Vimal Jain <vkjk89@gmail.com> wrote:

> Thanks Ted and Kiru,
> Ted,
> Any place where i can  debug that JSON in detail ?
>
> Kiru ,
> I have one multi-threaded client which reads/writes to hbase.
>
>
> On Wed, Sep 25, 2013 at 10:16 AM, Kiru Pakkirisamy <
> kirupakkirisamy@yahoo.com> wrote:
>
> > Are you running many concurrent clients ? I had a similar problem when
> > running on 0.94.x and I moved to 0.95.2 for this reason (see HBASE-9410)
> >
> > Regards,
> > - kiru
> >
> >
> > ________________________________
> >  From: Vimal Jain <vkjk89@gmail.com>
> > To: user@hbase.apache.org
> > Sent: Tuesday, September 24, 2013 9:36 PM
> > Subject: Warning messages in hbase logs
> >
> >
> > Hi,
> > I am seeing some warning message in Hregion log file  for quite a few
> days.
> > The message is :
> >
> > *WARN org.apache.hadoop.ipc.HBaseServer: (responseTooSlow):
> >
> >
> {"processingtimems":12994,"call":"multi(org.apache.hadoop.hbase.client.MultiAction@602cdaf7
> > ),
> > rpc version=1, client version=29,
> > methodsFingerPrint=-1368823753","client":"
> > 192.168.20.31:42206
> >
> >
> ","starttimems":1380057021850,"queuetimems":0,"class":"HRegionServer","responsesize":0,"method":"multi"}
> > *
> >
> >
> > Can someone please help in understanding what this warning message is ?
> >
> > --
> > Thanks and Regards,
> > Vimal Jain
> >
>
>
>
> --
> Thanks and Regards,
> Vimal Jain
>

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