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Date: Fri, 18 Oct 2013 15:01:17 -0700 (PDT)
From: Kiru Pakkirisamy <kirupakkirisamy@yahoo.com>
Reply-To: Kiru Pakkirisamy <kirupakkirisamy@yahoo.com>
Subject: Re: Warning messages in hbase logs
To: Vimal Jain <vkjk89@gmail.com>, Himanshu Vashishtha <hv.csuoa@gmail.com>
Cc: "user@hbase.apache.org" <user@hbase.apache.org>,
  lars hofhansl <larsh@apache.org>
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Vimal,=0AMaybe you should try running the test case for HBASE-9410 (with so=
me modifications) and report back.=0AThis way Lars/committers/contributors =
can work on this bug with confirmation.=0A=0A=0AThe test case makes a copro=
cessor call (which does nothing) on a table with regions in all the region =
servers.=0AFeel free to send me any email in this regards.=A0=0A=A0=0ARegar=
ds,=0A- kiru=0A=0A=0AKiru Pakkirisamy | webcloudtech.wordpress.com=0A=0A=0A=
________________________________=0A From: Vimal Jain <vkjk89@gmail.com>=0AT=
o: Himanshu Vashishtha <hv.csuoa@gmail.com> =0ACc: "user@hbase.apache.org" =
<user@hbase.apache.org>; Kiru Pakkirisamy <kirupakkirisamy@yahoo.com>; lars=
 hofhansl <larsh@apache.org> =0ASent: Thursday, October 17, 2013 9:39 PM=0A=
Subject: Re: Warning messages in hbase logs=0A =0A=0A=0AHi.=0AI am still ge=
tting these warnings in region server logs.=0AI am still using hbase 0.94.7=
.=0AIs there any impact of these warning messages ?=0A=0A=0A=0A=0AOn Thu, S=
ep 26, 2013 at 11:19 PM, Himanshu Vashishtha <hv.csuoa@gmail.com> wrote:=0A=
=0A=0A>=0A>=0A>=0A>=0A>On Thu, Sep 26, 2013 at 4:07 AM, Kiru Pakkirisamy <k=
irupakkirisamy@yahoo.com> wrote:=0A>=0A>I was on 0.94.11 and still got the =
same msgs as Vimal.=A0=0A>>Ultimately, I moved to 0.95.2.=0A>>=0A>=A0=0A>Yo=
u know it is a dev release, right?=A0=0A>=0A>=0A>=0A>=0A>Regards,=0A>>- kir=
u=0A>>=0A>>=0A>>Kiru Pakkirisamy | webcloudtech.wordpress.com=0A>>=0A>>=0A>=
>=0A>>________________________________=0A>>=A0From: lars hofhansl <larsh@ap=
ache.org>=0A>>To: Vimal Jain <vkjk89@gmail.com>; "user@hbase.apache.org" <u=
ser@hbase.apache.org>=0A>>Cc: Kiru Pakkirisamy <kirupakkirisamy@yahoo.com>=
=0A>>Sent: Wednesday, September 25, 2013 9:46 PM=0A>>=0A>>Subject: Re: Warn=
ing messages in hbase logs=0A>>=0A>>=0A>>You probably ran into=0A>>[HBASE-6=
870] - HTable#coprocessorExec always scan the whole table (0.94.8)=0A>>=0A>=
>Or maybe one of these:=0A>>=0A>>[HBASE-8806] - Row locks are acquired repe=
atedly in HRegion.doMiniBatchMutation for duplicate rows. (0.94.10)=0A>>[HB=
ASE-8639] - Poor performance of htable#getscanner in multithreaded environm=
ent due to DNS.getDefaultHost() being called in ScannerCallable#prepare() (=
0.94.9)=0A>>[HBASE-9087] - Handlers being blocked during reads (0.94.11)=0A=
>>=0A>>=0A>>-- Lars=0A>>=0A>>=0A>>=0A>>________________________________=0A>=
>From: Vimal Jain <vkjk89@gmail.com>=0A>>To: user@hbase.apache.org; lars ho=
fhansl <larsh@apache.org>=0A>>Cc: Kiru Pakkirisamy <kirupakkirisamy@yahoo.c=
om>=0A>>Sent: Wednesday, September 25, 2013 10:01 PM=0A>>Subject: Re: Warni=
ng messages in hbase logs=0A>>=0A>>=0A>>=0A>>I am using =A0Hadoop version -=
 1.1.2 , Hbase version - 0.94.7 .=0A>>=0A>>=0A>>=0A>>On Thu, Sep 26, 2013 a=
t 9:38 AM, lars hofhansl <larsh@apache.org> wrote:=0A>>=0A>>Eh? That should=
 not be the case, we should figure where 0.95.2 is different from 0.94.=0A>=
>>With which version of the 0.94 did you see this?=0A>>>=0A>>>-- Lars=0A>>>=
=0A>>>=0A>>>=0A>>>=0A>>>----- Original Message -----=0A>>>From: Kiru Pakkir=
isamy <kirupakkirisamy@yahoo.com>=0A>>>To: "user@hbase.apache.org" <user@hb=
ase.apache.org>=0A>>>Cc:=0A>>>Sent: Tuesday, September 24, 2013 9:46 PM=0A>=
>>Subject: Re: Warning messages in hbase logs=0A>>>=0A>>>Are you running ma=
ny 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)=0A>>>=A0=0A>>>Regards,=
=0A>>>- kiru=0A>>>=0A>>>=0A>>>________________________________=0A>>>From: V=
imal Jain <vkjk89@gmail.com>=0A>>>To: user@hbase.apache.org=0A>>>Sent: Tues=
day, September 24, 2013 9:36 PM=0A>>>Subject: Warning messages in hbase log=
s=0A>>>=0A>>>=0A>>>Hi,=0A>>>I am seeing some warning message in Hregion log=
 file=A0 for quite a few days.=0A>>>The message is :=0A>>>=0A>>>*WARN org.a=
pache.hadoop.ipc.HBaseServer: (responseTooSlow):=0A>>>{"processingtimems":1=
2994,"call":"multi(org.apache.hadoop.hbase.client.MultiAction@602cdaf7),=0A=
>>>rpc version=3D1, client version=3D29, methodsFingerPrint=3D-1368823753",=
"client":"=0A>>>192.168.20.31:42206=0A>>>","starttimems":1380057021850,"que=
uetimems":0,"class":"HRegionServer","responsesize":0,"method":"multi"}=0A>>=
>*=0A>>>=0A>>>=0A>>>Can someone please help in understanding what this warn=
ing message is ?=0A>>>=0A>>>--=0A>>>Thanks and Regards,=0A>>>Vimal Jain=0A>=
>>=0A>>=0A>>=0A>>--=0A>>=0A>>Thanks and Regards,=0A>>Vimal Jain=0A>=0A=0A=
=0A-- =0A=0AThanks and Regards,=0AVimal Jain
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