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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1070) Number of racks and datanode double temporarily when upgrading from 0.10.1 to 0.11.2
Date Wed, 07 Mar 2007 20:01:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12478873
] 

Raghu Angadi commented on HADOOP-1070:
--------------------------------------


This confusion might be between 11.2 and 12.0.

>2007-03-06 18:28:06,131 INFO org.apache.hadoop.net.NetworkTopology: Adding a new node:
/default-rack/75.75.60.70:50010
>2007-03-06 18:28:06,132 INFO org.apache.hadoop.net.NetworkTopology: Adding a new node:
/default-rack/75.75.60.70:50010 

I will look into why there are double entries in fsimage. will update with what should happen
in this case.



> Number of racks and datanode double temporarily when upgrading from 0.10.1 to 0.11.2
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1070
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1070
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.11.2
>            Reporter: Nigel Daley
>
> When upgrading from Hadoop 0.10.1 to 0.11.2, I see the number of racks and datanode double
after the 2nd startup of the Namenode.  After the 3rd startup, they correct themselves:
> Namenode Log After 1st Startup:
> 2007-03-06 18:27:27,045 INFO org.apache.hadoop.dfs.StateChange: STATE* Network topology
has 1 racks and 4 datanodes
> Namenode Log After 2nd Startup:
> 2007-03-06 18:27:43,201 INFO org.apache.hadoop.dfs.StateChange: STATE* Network topology
has 2 racks and 8 datanodes
> Namenode Log After 3rd Startup:
> 2007-03-06 18:28:09,730 INFO org.apache.hadoop.dfs.StateChange: STATE* Network topology
has 1 racks and 4 datanodes

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