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Posted to issues@hbase.apache.org by "Harsh J (Commented) (JIRA)" <ji...@apache.org> on 2011/10/31 05:58:32 UTC
[jira] [Commented] (HBASE-4705) HBase won't initialize if /hbase is
not present
[ https://issues.apache.org/jira/browse/HBASE-4705?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13139918#comment-13139918 ]
Harsh J commented on HBASE-4705:
--------------------------------
I apologize for missing the whole activity on HBASE-4680.
I think a better fix would have been, instead of the HBASE-4680, to just catch other exceptions (which is something I missed despite commenting).
This change is fine too, but has lead to HBASE-4705 scenarios. Could we revert HBASE-4680 and instead add a:
{code}
catch (Safemode) {
return true;
} catch (Others) {
ignore;
}
{code}
Kinda block, while still operating on the only dir guaranteed to exist (/ - root)? This is so cause safemode is always checked first on the server side before anything else is returned. The superuser check is not client side.
> HBase won't initialize if /hbase is not present
> -----------------------------------------------
>
> Key: HBASE-4705
> URL: https://issues.apache.org/jira/browse/HBASE-4705
> Project: HBase
> Issue Type: Bug
> Reporter: Harsh J
>
> {code}
> 2011-10-31 00:09:09,549 FATAL org.apache.hadoop.hbase.master.HMaster: Unhandled exception. Starting shutdown.
> java.io.FileNotFoundException: File does not exist: hdfs://C3S31:9000/hbase
> at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:731)
> at org.apache.hadoop.hbase.util.FSUtils.isInSafeMode(FSUtils.java:163)
> at org.apache.hadoop.hbase.util.FSUtils.waitOnSafeMode(FSUtils.java:458)
> at org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:301)
> at org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:127)
> at org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:112)
> at org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:426)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:309)
> at java.lang.Thread.run(Thread.java:662)
> 2011-10-31 00:09:09,551 INFO org.apache.hadoop.hbase.master.HMaster: Aborting
> 2011-10-31 00:09:09,551 DEBUG org.apache.hadoop.hbase.master.HMaster: Stopping service threads
> {code}
> Trunk won't start HBase unless /hbase is already present, after HBASE-4680 (and the silly error I made in HBASE-4510).
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