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HBase >> mail # user >> one of our datanodes stops working after few hours


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Re: one of our datanodes stops working after few hours
Version: 0.20.2+320 hdfs
.89 HBASE

ulimit is 32k
xcievers is 5k

Note from the jstack, I am not exceeding xcievers.

-Jack

On Sun, May 1, 2011 at 6:19 PM, Michael Segel <[EMAIL PROTECTED]> wrote:
>
>
> What's your xceivers set to?
> What's the ulimit -n  set for hdfs/hadoop user... (You didn't say which release/version you were using.)
>
>> Date: Sun, 1 May 2011 17:47:18 -0700
>> Subject: one of our datanodes stops working after few hours
>> From: [EMAIL PROTECTED]
>> To: [EMAIL PROTECTED]
>>
>> I took a jstack (http://pastebin.com/5v6mHg3t).   After few hours, its
>> literally staggers to a halt and gets very very slow... Any ideas
>> whats its blocking on?
>> (main issue is that fsreads for RS get really slow when that happens).
>>
>> -Jack
>