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HDFS >> mail # user >> 答复: Decomssion datanode - no response


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Re: Decomssion datanode - no response
I filed this issue at :
https://issues.apache.org/jira/browse/HDFS-4959
On Fri, Jul 5, 2013 at 1:06 PM, Azuryy Yu <[EMAIL PROTECTED]> wrote:

> Client hasn't any connection problem.
>
>
> On Fri, Jul 5, 2013 at 12:46 PM, Devaraj k <[EMAIL PROTECTED]> wrote:
>
>>  And also could you check whether the client is connecting to NameNode
>> or any failure in connecting to the NN.****
>>
>> ** **
>>
>> Thanks****
>>
>> Devaraj k****
>>
>> ** **
>>
>> *From:* Azuryy Yu [mailto:[EMAIL PROTECTED]]
>> *Sent:* 05 July 2013 09:15
>>
>> *To:* [EMAIL PROTECTED]
>> *Subject:* Re: Decomssion datanode - no response****
>>
>>  ** **
>>
>> I added dfs.hosts.exclude before NN started.****
>>
>>  ****
>>
>> and I updated /usr/local/hadoop/conf/dfs_exclude whith new hosts, but It
>> doesn't decomssion. ****
>>
>> ** **
>>
>> On Fri, Jul 5, 2013 at 11:39 AM, Devaraj k <[EMAIL PROTECTED]> wrote:*
>> ***
>>
>> When did you add this configuration in NN conf? ****
>>
>>   <property>
>>     <name>dfs.hosts.exclude</name>
>>     <value>/usr/local/hadoop/conf/dfs_exclude</value>
>>   </property>****
>>
>>  ****
>>
>> If you have added this configuration after starting NN, it won’t take
>> effect and need to restart NN.****
>>
>>  ****
>>
>> If you have added this config with the exclude file before NN start, you
>> can update the file with new hosts and refreshNodes command can be issued,
>> then newly updated the DN’s will be decommissioned.****
>>
>>  ****
>>
>> Thanks****
>>
>> Devaraj k****
>>
>>  ****
>>
>> *From:* Azuryy Yu [mailto:[EMAIL PROTECTED]]
>> *Sent:* 05 July 2013 08:48
>> *To:* [EMAIL PROTECTED]
>> *Subject:* Re: Decomssion datanode - no response****
>>
>>  ****
>>
>> Thanks Devaraj,****
>>
>>  ****
>>
>> There are no any releated logs in the NN log and DN log.****
>>
>>  ****
>>
>> On Fri, Jul 5, 2013 at 11:14 AM, Devaraj k <[EMAIL PROTECTED]> wrote:*
>> ***
>>
>> Do you see any log related to this in Name Node logs when you issue
>> refreshNodes dfsadmin command?****
>>
>>  ****
>>
>> Thanks****
>>
>> Devaraj k****
>>
>>  ****
>>
>> *From:* Azuryy Yu [mailto:[EMAIL PROTECTED]]
>> *Sent:* 05 July 2013 08:12
>> *To:* [EMAIL PROTECTED]
>> *Subject:* Decomssion datanode - no response****
>>
>>  ****
>>
>> Hi,****
>>
>> I am using hadoop-2.0.5-alpha, and I added 5 datanodes into dfs_exclude,
>> ****
>>
>>  ****
>>
>> hdfs-site.xml:****
>>
>>   <property>
>>     <name>dfs.hosts.exclude</name>
>>     <value>/usr/local/hadoop/conf/dfs_exclude</value>
>>   </property>****
>>
>>  ****
>>
>> then:****
>>
>> hdfs dfsadmin -refreshNodes****
>>
>>  ****
>>
>> but there is no decomssion nodes showed on the webUI. and not any
>> releated logs in the datanode log. what's wrong?****
>>
>>  ****
>>
>> ** **
>>
>
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