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From "J.Andreina (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3360) SNN gets Shutdown if the conf "dfs.namenode.checkpoint.dir" and "dfs.namenode.checkpoint.edits.dir" is configured to more than 6 comma seperated values with 3-4 level in each directories
Date Fri, 11 May 2012 06:59:55 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273090#comment-13273090
] 

J.Andreina commented on HDFS-3360:
----------------------------------

@Uma, for the configurations "dfs.name.dir","dfs.namenode.checkpoint.dir" and "dfs.namenode.checkpoint.edits.dir"
Without variable substitution when i configure values with 5-6 levels for each directories
Namenode and secondary Namenode is started successfully.

But when i give a variable substitutions for the values configured,  Namenode gets shutdown
by throwing the IllegalStateException : "Variable substitution depth too large"  and Secondary
Namenode does not throw any exception but gets shutdown
                
> SNN gets Shutdown if the conf "dfs.namenode.checkpoint.dir" and "dfs.namenode.checkpoint.edits.dir"
is configured to more than 6 comma seperated values with 3-4 level in each directories
> ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-3360
>                 URL: https://issues.apache.org/jira/browse/HDFS-3360
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 2.0.0
>            Reporter: J.Andreina
>            Priority: Minor
>             Fix For: 2.0.0, 3.0.0
>
>
> Configured "dfs.namenode.checkpoint.dir" and "dfs.namenode.checkpoint.edits.dir" to more
than 6 comma seperated directories 
>  Started NN,DN,SNN
>  Secondary Namenode gets shutdown without throwing any exception
> But the descriptions says that "If this is a comma-delimited list of directories then
the image is
> replicated in all of the directories for redundancy."
> SNN logs
> ========
> {noformat}2012-04-26 13:08:37,534 INFO org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode:
STARTUP_MSG: 
> /************************************************************
> STARTUP_MSG: Starting SecondaryNameNode
> STARTUP_MSG:   host = HOST-xx-xx-xx-xx/xx.xx.xx.xx
> STARTUP_MSG:   args = []
> STARTUP_MSG:   version = 2.0.0-SNAPSHOT
> STARTUP_MSG:   build =  -r ; compiled by 'isap' on Fri Apr 20 09:10:53 IST 2012
> ************************************************************/
> 2012-04-26 13:08:38,728 INFO org.apache.hadoop.metrics2.impl.MetricsConfig: loaded properties
from hadoop-metrics2.properties
> 2012-04-26 13:08:38,861 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: Scheduled
snapshot period at 10 second(s).
> 2012-04-26 13:08:38,861 INFO org.apache.hadoop.metrics2.impl.MetricsSystemImpl: SecondaryNameNode
metrics system started
> 2012-04-26 13:08:39,176 INFO org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode:
SHUTDOWN_MSG: 
> /************************************************************
> SHUTDOWN_MSG: Shutting down SecondaryNameNode at HOST-xx-xx-xx-xx/xx.xx.xx.xx
> ************************************************************/{noformat}

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