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From: Esteban Gutierrez <esteban@cloudera.com>
Date: Wed, 8 Jul 2015 08:52:57 -0700
Message-ID: 
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Subject: Re: RegionServer 60030 Show All RPC Handler Task is empty
To: "user@hbase.apache.org" <user@hbase.apache.org>
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Yeah, it took about one day to see this in one my test clusters with heavy
load. Will keep you posted.

Thanks,
esteban.

--
Cloudera, Inc.


On Wed, Jul 8, 2015 at 2:32 AM, Louis Hust <louis.hust@gmail.com> wrote:

> Hi esteban,
>
> For the dump url get the following out:
>
>
> Tasks:
> ===========================================================
>
>
> Executors:
>
>
> For the json format, got the following output:
>
> Shell > curl http://xxxx:60030/rs-status\?format\=json\&filter\=handler
>
> []
>
>
> All output is empty
>
> 2015-07-07 14:05 GMT+08:00 Esteban Gutierrez <esteban@cloudera.com>:
>
> > Louis,
> >
> > before you see this problem, how many tasks are reported by the debug
> dump
> > servlet? e.g what do you see when you run "curl -s http://rs:port/dump |
> > grep Task: | wc -l" ? Have you tried to dump directly the JSON object
> "curl
> > -s http://rs:port/rs-status?format=json&filter=handler" ?
> >
> > thanks,
> > esteban.
> >
> > --
> > Cloudera, Inc.
> >
> >
> > On Mon, Jul 6, 2015 at 8:51 PM, Louis Hust <louis.hust@gmail.com> wrote:
> >
> > > Any idea
> > >
> > > 2015-07-03 14:17 GMT+08:00 Louis Hust <louis.hust@gmail.com>:
> > >
> > > > Hi, stack,
> > > >
> > > > It seems that after one day, the " Show All RPC Handler Tasks" tab go
> > > > back to empty.
> > > > Confused!!
> > > >
> > > >
> > > > 2015-07-02 14:50 GMT+08:00 Stack <stack@duboce.net>:
> > > >
> > > >> On Wed, Jul 1, 2015 at 9:18 PM, Louis Hust <louis.hust@gmail.com>
> > > wrote:
> > > >>
> > > >> > Hi, all
> > > >> >
> > > >> > I restart a regionserver and do a balanceswitch manually,
> > > >> > the task seems ok
> > > >> >
> > > >> > You are seeing handler tasks now?
> > > >>
> > > >> On apache branch-1, I see the tasks all WAITING.
> > > >>
> > > >> Let me check a CDH...
> > > >>
> > > >> St.Ack
> > > >>
> > > >>
> > > >>
> > > >> > 2015-06-30 15:38 GMT+08:00 Louis Hust <louis.hust@gmail.com>:
> > > >> >
> > > >> > > Any ideas?
> > > >> > >
> > > >> > > 2015-06-30 9:53 GMT+08:00 Louis Hust <louis.hust@gmail.com>:
> > > >> > >
> > > >> > >> Anybody can help?
> > > >> > >>
> > > >> > >> 2015-06-26 23:05 GMT+08:00 Louis Hust <louis.hust@gmail.com>:
> > > >> > >>
> > > >> > >>> Hi, all
> > > >> > >>>
> > > >> > >>>
> > > >> > >>> We are using 0.98.6-cdh5.2.0, rUnknown
> > > >> > >>>
> > > >> > >>>
> > > >> > >>> And when we visit the web regionserverhost:60030 to see Show
> All
> > > RPC
> > > >> > >>> Handler Tasks,
> > > >> > >>>
> > > >> > >>> found No tasks currently running on this node. But we
> configure
> > > >> > >>>
> > > >> > >>> <property>
> > > >> > >>>
> > > >> > >>> <name>hbase.regionserver.handler.count</name>
> > > >> > >>>
> > > >> > >>> <value>150</value>
> > > >> > >>>
> > > >> > >>> <source>hbase-site.xml</source>
> > > >> > >>>
> > > >> > >>> </property>
> > > >> > >>>
> > > >> > >>>
> > > >> > >>>
> > > >> > >>> And on another cluster using 0.96.0-hadoop2, we can see
> > following
> > > >> tasks
> > > >> > >>> under Show All RPC Handler Tasks:
> > > >> > >>>
> > > >> > >>>
> > > >> > >>>   Tue Jun 09 17:32:14 CST 2015
> > > >> > >>>
> > > >> > >>> RpcServer.handler=9,port=60020
> > > >> > >>>
> > > >> > >>> WAITING (since 0sec ago)
> > > >> > >>>
> > > >> > >>> Waiting for a call (since 0sec ago)
> > > >> > >>>
> > > >> > >>>
> > > >> > >>> So i want to know if it is a bug? or something i
> misunderstand?
> > > >> > >>>
> > > >> > >>>
> > > >> > >>> Any idea will be appreciated!
> > > >> > >>>
> > > >> > >>
> > > >> > >>
> > > >> > >
> > > >> >
> > > >>
> > > >
> > > >
> > >
> >
>

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