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https://issues.apache.org/jira/browse/BOOKKEEPER-244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13272428#comment-13272428
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Ivan Kelly commented on BOOKKEEPER-244:
---------------------------------------
Ah yes, I'll work on a patch for this. Do you think an empty inprogress znode
should be deleted completely, or archived somewhere? Personally, I think that
warning about it should be enough.
> BookKeeperJournalManager: NN startup is failing, when tries to
> recoverUnfinalizedSegments() a bad inProgress_ ZNodes
> --------------------------------------------------------------------------------------------------------------------
>
> Key: BOOKKEEPER-244
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-244
> Project: Bookkeeper
> Issue Type: Bug
> Reporter: Rakesh R
>
> Say, the InProgress_000X node is corrupted due to not writing the
> data(version, ledgerId, firstTxId) to this inProgress_000X znode. Namenode
> startup has the logic to recover all the unfinalized segments, here will try
> to read the segment and getting shutdown.
> {noformat}
> EditLogLedgerMetadata.java:
> static EditLogLedgerMetadata read(ZooKeeper zkc, String path)
> throws IOException, KeeperException.NoNodeException {
> byte[] data = zkc.getData(path, false, null);
> String[] parts = new String(data).split(";");
> if (parts.length == 3)
> ....reading inprogress metadata
> else if (parts.length == 4)
> ....reading inprogress metadata
> else
> throw new IOException("Invalid ledger entry, "
> + new String(data));
> }
> {noformat}
> Scenario:- Leaving bad inProgress_000X node ?
> Assume BKJM has created the inProgress_000X zNode and ZK is not available
> when trying to add the metadata. Now, inProgress_000X ends up with partial
> information.
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