[jira] [Commented] (BOOKKEEPER-199) Provide bookie readonly mode, when journal/ledgers flushing has failed with IOE

["Rakesh R (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-199?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13293358#comment-13293358 ] 

Rakesh R commented on BOOKKEEPER-199:
-------------------------------------

Here One more scenario needs to be handled which was discussed on BOOKKEEPER-180.
Adding new ledger and flushing is failed in SyncThread due to disk full. But Server did not shutdown here.

2012-06-11 140014,696 - ERROR [SyncThreadInterleavedLedgerStorage@156] - Exception flushing Ledger
{noformat}
java.io.IOException No space left on device
	at sun.nio.ch.FileDispatcher.write0(Native Method)
	at sun.nio.ch.FileDispatcher.write(FileDispatcher.java39)
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java69)
	at sun.nio.ch.IOUtil.write(IOUtil.java26)
	at sun.nio.ch.FileChannelImpl.write(FileChannelImpl.java198)
	at org.apache.bookkeeper.bookie.BufferedChannel.flush(BufferedChannel.java109)
	at org.apache.bookkeeper.bookie.EntryLogger.flush(EntryLogger.java280)
	at org.apache.bookkeeper.bookie.InterleavedLedgerStorage.flush(InterleavedLedgerStorage.java154)
	at org.apache.bookkeeper.bookie.Bookie$SyncThread.run(Bookie.java200)
{noformat}
                
> Provide bookie readonly mode, when journal/ledgers flushing has failed with IOE
> -------------------------------------------------------------------------------
>
>                 Key: BOOKKEEPER-199
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-199
>             Project: Bookkeeper
>          Issue Type: Sub-task
>          Components: bookkeeper-server
>    Affects Versions: 4.0.0
>            Reporter: Rakesh R
>            Assignee: Rakesh R
>            Priority: Critical
>             Fix For: 4.2.0
>
>         Attachments: BOOKKEEPER-199.patch
>
>
> Bookkeeper should change to readonly(r-o) mode when the journal/ledgers flushing has failed with IOException. Later on, reject write requests on server side and will accept only the read requests from the clients, because even if flushing fails, the data in the bookie which has been flushed is still valid.

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