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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2007/05/08 21:03:15 UTC
[jira] Updated: (HADOOP-1106) Number of DataNodes less than target
replication causes NameNode WARN message every millisecond
[ https://issues.apache.org/jira/browse/HADOOP-1106?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Owen O'Malley updated HADOOP-1106:
----------------------------------
Priority: Blocker (was: Major)
> Number of DataNodes less than target replication causes NameNode WARN message every millisecond
> -----------------------------------------------------------------------------------------------
>
> Key: HADOOP-1106
> URL: https://issues.apache.org/jira/browse/HADOOP-1106
> Project: Hadoop
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.12.0
> Reporter: Nigel Daley
> Priority: Blocker
> Fix For: 0.13.0
>
>
> When I startup a 4 DataNode cluster that already contains files with a target replication of 3, but 2 of the DataNodes fail to come online (ie. there are fewer DataNodes then the target replication), I get the following output in the NameNode log every millisecond or less, continued forever:
> 2007-03-09 22:45:22,848 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,849 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,850 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,851 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,852 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,852 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,853 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,853 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
> 2007-03-09 22:45:22,854 WARN org.apache.hadoop.fs.FSNamesystem: Not able to place enough replicas, still in need of 2
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