Mailing-List: contact user-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@hbase.apache.org
MIME-Version: 1.0
In-Reply-To: <CADcMMgGcTQr0p-hGt0LHsSfPm2PA=yWbSyifMQG39JSpBLucHw@mail.gmail.com>
References: <CAPVWZXB7WPLeODpFgQ7ngoqRhhEffn9xwGC86ov5-KdfOJePSQ@mail.gmail.com>
 <CADcMMgFvnruukYLsNZr=UhdSm5pf1DAT66OR7=z=M9PGLH=54w@mail.gmail.com>
 <CAPVWZXCMsJggG1XkjQfZKVTVyVxYGWCgSmQLop7punKOvDwhUw@mail.gmail.com>
 <CADcMMgFyKAPt3SDubpOmdXoMgnd3iW0qXrp8XWqe9LqHHWx8wg@mail.gmail.com>
 <CAPVWZXD7G=jAcX-v3cPW354vWiMGzi4fXwSYzjFitaEtQWF7eg@mail.gmail.com> <CADcMMgGcTQr0p-hGt0LHsSfPm2PA=yWbSyifMQG39JSpBLucHw@mail.gmail.com>
From: Timothy Brown <tim@siftscience.com>
Date: Mon, 5 Dec 2016 22:06:21 -0800
Message-ID: <CAPVWZXB9vDz3fctvppSxjYvaHk87BfXyR1u5NoMjvB009KfFjg@mail.gmail.com>
Subject: Re: High CPU Utilization by meta region
To: user@hbase.apache.org
Content-Type: multipart/alternative; boundary=001a1146df0e1dcbaa0542f7347d
archived-at: Tue, 06 Dec 2016 06:06:32 -0000

--001a1146df0e1dcbaa0542f7347d
Content-Type: text/plain; charset=UTF-8

We discovered that we were running the canary on all of our RegionServers.
These were reading from meta and causing the CPU usage. When we stopped the
canary, the CPU utilization on the RS that only contained the meta region
looked like the usage on the other RegionServers.

On Thu, Dec 1, 2016 at 8:43 PM, Stack <stack@duboce.net> wrote:

> On Thu, Dec 1, 2016 at 3:48 PM, Timothy Brown <tim@siftscience.com> wrote:
> >
> > >
> > >
> > If you turn on RPC-level TRACE logging for a minute or so, anything about
> > > the client addresses that seems interesting?
> >
> >
> > Nothing seemed interesting to me but you may have a different opinion.
> > Here's the logs http://pastebin.com/FE8qVNH4
> >
> >
> Yeah. Nothing in there. There is no TRACE logging in there.
>
> St.Ack
>

--001a1146df0e1dcbaa0542f7347d--