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Date: Tue, 19 May 2015 19:04:19 -0700
Message-ID: 
 <CALte62whtEMtGxFx4VxnLfhXVNgfBWcZ5xTB6KE_jBghTVnycw@mail.gmail.com>
Subject: Re: Re: Re: How to know the root reason to cause RegionServer OOM?
From: Ted Yu <yuzhihong@gmail.com>
To: "user@hbase.apache.org" <user@hbase.apache.org>
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For scenario #1, you would see in the regionserver.out file that "kill -9 "
command was applied due to OOME.

For scenario #2, can you see if dmesg provides some clue ?

Cheers

On Tue, May 19, 2015 at 6:32 PM, David chen <c77_cn@163.com> wrote:

> Thanks for guys reply, its indeed helped me.
> Another question, I think there are two possibilities to kill RegionServer
> process:
> 1. When JVM inspects that the memory, RegionServer has occupied, exceed
> the max-heap-size,  then JVM calls positively the command configured by
> option "-XX:OnOutOfMemoryError=kill -9 %p" to kill RegionServer  process.
> 2. RegionServer process does not reach the max-heap-size, but new
> application need to allocation memory,  if lack of memory, OS will choose
> to kill some processes, RegionServer unfortunately becomes the first
> choice, so it  is killed by OS.
> Is my understanding right? If so, how to know which possibility my scene
> is?
> Any ideas can be appreciated!
>

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