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From 陈加俊 <cjjvict...@gmail.com>
Subject Re: all regionserver shutdown after close hdfs datanode
Date Mon, 20 Dec 2010 04:35:05 GMT
Hi Shuaifeng

What about your hdfs's version?

Mybe this can solve this problem:

This is the current list of patches we recommend you apply to your running
Hadoop cluster:

   - HDFS-630: *"In DFSOutputStream.nextBlockOutputStream(), the client can
   exclude specific datanodes when locating the next
   Dead DataNodes take ten minutes to timeout at NameNode. In the meantime the
   NameNode can still send DFSClients to the dead DataNode as host for a
   replicated block. DFSClient can get stuck on trying to get block from a dead
   node. This patch allows DFSClients pass NameNode lists of known dead

On Mon, Dec 20, 2010 at 12:15 PM, Zhou Shuaifeng

> Hi,
> I have a cluster of 8  hdfs datanodes and 8 hbase regionservers. When I
> shutdown one node(a pc with one datanode and one regionserver running), all
> hbase regionservers shutdown after a while.
> Other 7 hdfs datanodes is OK.
> I think it's not reasionable. Hbase is a distribute system that should
> tolerance some nodes abnormal. So, what's the matter? Is there any
> configure
> that can solve this problem or is a bug?
> Thanks and best Regards.
> Zhou
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Thanks & Best regards

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