Hi jiajun, My Hadoop version is 0.20.1, r1.0. May be the problem is exactly what you said. I will check the HDFS-630 and apply the patches.
Thanks a lot. Zhou Shuaifeng(Frank) HUAWEI TECHNOLOGIES CO.,LTD. huawei_logo ------------------------------------------------------------------------------------------------------------------------------------- This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -----邮件原件----- 发件人: 陈加俊 [mailto:[email protected]] 发送时间: 2010年12月20日 12:35 收件人: [email protected] 主题: Re: all regionserver shutdown after close hdfs datanode 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 block"*<https://issues.apache.org/jira/browse/HDFS-630>. 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 DataNodes. On Mon, Dec 20, 2010 at 12:15 PM, Zhou Shuaifeng <[email protected]>wrote: > 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 > > > ---------------------------------------------------------------------------- > --------------------------------------------------------- > This e-mail and its attachments contain confidential information from > HUAWEI, which > is intended only for the person or entity whose address is listed above. > Any > use of the > information contained herein in any way (including, but not limited to, > total or partial > disclosure, reproduction, or dissemination) by persons other than the > intended > recipient(s) is prohibited. If you receive this e-mail in error, please > notify the sender by > phone or email immediately and delete it! > > -- Thanks & Best regards jiajun
