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From "stack (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4723) Loads of NotAllMetaRegionsOnlineException traces when starting the master
Date Wed, 02 Nov 2011 04:08:32 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13141898#comment-13141898
] 

stack commented on HBASE-4723:
------------------------------

+1 but change log message on commit because it could be -ROOT- that is not yet on-line; its
not just .META. issue.

The TestDistributedLogSplitting failed because of 'too many open files'.  I added logging
ulimit and host name to the build config so we can see which machine is w/o the right ulimit
setting (Because Giri today said he'd set them all to 16k).  Lets see.
                
> Loads of NotAllMetaRegionsOnlineException traces when starting the master
> -------------------------------------------------------------------------
>
>                 Key: HBASE-4723
>                 URL: https://issues.apache.org/jira/browse/HBASE-4723
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Jean-Daniel Cryans
>            Assignee: Jean-Daniel Cryans
>            Priority: Minor
>             Fix For: 0.92.0, 0.90.5
>
>         Attachments: HBASE-4723.patch
>
>
> Minor annoyance, when starting a master I very often get 1 or more stack traces like
these:
> {quote}
> 2011-11-02 00:39:14,448 INFO org.apache.hadoop.hbase.catalog.CatalogTracker: Retrying
> org.apache.hadoop.hbase.NotAllMetaRegionsOnlineException: Timed out (100ms)
> 	at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:449)
> 	at org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:413)
> 	at org.apache.hadoop.hbase.master.HMaster.assignRootAndMeta(HMaster.java:541)
> 	at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:468)
> 	at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:309)
> 	at java.lang.Thread.run(Thread.java:662)
> {quote}
> 1) it's not super clear what's going on (putting myself in a new user's head) and 2)
those exceptions look bad (until you see they are at INFO level).
> I'd just do a little cleanup: remove the stack trace, add a more meaningful message.

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