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https://issues.apache.org/jira/browse/HBASE-12978?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14314630#comment-14314630
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stack commented on HBASE-12978:
-------------------------------
It looks like I broke this:
889333a HBASE-12313 Redo the hfile index length optimization so cell-based
rather than serialized KV key
It used to be this with a context specific comparator:
{code}
byte[] indexKey = comparator.calcIndexKey(lastKeyOfPreviousBlock,
firstKeyInBlock);
dataBlockIndexWriter.addEntry(indexKey, lastDataBlockOffset, onDiskSize);
{code}
replacing it with....
{code}
165 // Rather than CellComparator, we should be making use of an
Interface here with the
166 // implementation class serialized out to the HFile metadata. TODO.
167 Cell indexEntry =
CellComparator.getMidpoint(lastCellOfPreviousBlock, firstCellInBlock);
168
dataBlockIndexWriter.addEntry(CellUtil.getCellKeySerializedAsKeyValueKey(indexEntry),
169 lastDataBlockOffset, onDiskSize);
{code}
This is not in 0.98.
> Region goes permanently offline (WAS: hbase:meta has a row missing
> hregioninfo and it causes my long-running job to fail)
> -------------------------------------------------------------------------------------------------------------------------
>
> Key: HBASE-12978
> URL: https://issues.apache.org/jira/browse/HBASE-12978
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 1.0.1
>
> Attachments: e7cadabc6e5e46c7bf6b3d445f0c53cf
>
>
> Testing 1.0.0 trying long-running tests.
> A row in hbase:meta was missing its HRI entry. It caused the job to fail.
> Around the time of the first task failure, there are balances of the
> hbase:meta region and it was on a server that crashed. I tried to look at
> what happened around time of our writing hbase:meta and I ran into another
> issue; 20 logs of 256MBs filled with WrongRegionException written over a
> minute or two. The actual update of hbase:meta was not in the logs, it'd been
> rotated off.
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