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https://issues.apache.org/jira/browse/HDFS-2446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13148526#comment-13148526
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Kihwal Lee commented on HDFS-2446:
----------------------------------
There is no generic log level setting change that can satisfy all. With the
current architecture, the only way of achieving this is to control it through
config. So, it depends on the flexibility of deployment/installation method
user is using. This can be done through passing HADOOP_*_OPS env vars. Or
something like HADOOP-7814 could help supporting multiple config in a cluster.
Since there is no code change for directly addressing this problem, I will
close this.
> with hadoop.security.group.mapping settings two extra INFO with every hadoop
> command
> ------------------------------------------------------------------------------------
>
> Key: HDFS-2446
> URL: https://issues.apache.org/jira/browse/HDFS-2446
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: hdfs client
> Affects Versions: 0.20.205.0
> Reporter: Rajit Saha
>
> If we add following config parameter in core-site.xml in all the compute
> nodes and client side, we get extra two INFO message in STDOUT for every
> hadoop command
> core-site.xml
> =============
> ...
> <property>
> <name>hadoop.security.group.mapping</name>
>
> <value>org.apache.hadoop.security.JniBasedUnixGroupsNetgroupMapping</value>
> <description>
> Class for user to group mapping (get groups for a given user) for ACL
> </description>
> </property>
> ....
> $hadoop dfs -lsr /tmp
> 11/10/12 19:04:58 INFO util.NativeCodeLoader: Loaded the native-hadoop library
> 11/10/12 19:04:58 INFO security.JniBasedUnixGroupsMapping: Using
> JniBasedUnixGroupsMapping for Group resolution
> drwx------ - hadoopqa hdfs 0 2011-10-12 19:04 /tmp/file1
> drwx------ - hadoopqa hdfs 0 2011-10-12 19:04 /tmp/file2
> $hadoop dfs -rmr -skipTrash /tmp/file2
> 11/10/12 19:04:54 INFO util.NativeCodeLoader: Loaded the native-hadoop library
> 11/10/12 19:04:54 INFO security.JniBasedUnixGroupsMapping: Using
> JniBasedUnixGroupsMapping for Group resolution
> Deleted hdfs://<NN Hostname>/tmp/file2
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