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https://issues.apache.org/jira/browse/HBASE-4388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133492#comment-13133492
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stack commented on HBASE-4388:
------------------------------
bq. I think the order of the above two statements should be reverted because
the second call may throw IOException.
Sounds good. Will do in next patch.
bq. I think the assumption in the above statement is that users (of 0.20.6 and
0.89) would upgrade through 0.92 before upgrading to 0.94 (when 0.94 is
released).
Its first sentence in 'General Migration Notes' on our migration page:
http://wiki.apache.org/hadoop/Hbase/HowToMigrate
> Second start after migration from 90 to trunk crashes
> -----------------------------------------------------
>
> Key: HBASE-4388
> URL: https://issues.apache.org/jira/browse/HBASE-4388
> Project: HBase
> Issue Type: Bug
> Components: master, migration
> Affects Versions: 0.92.0
> Reporter: Todd Lipcon
> Assignee: stack
> Priority: Blocker
> Fix For: 0.92.0
>
> Attachments: 4388-v2.txt, 4388-v3.txt, 4388-v4.txt, 4388.txt,
> hbase-4388-root.dir.tgz, hbase-master-nase.log, meta.tgz
>
>
> I started a trunk cluster to upgrade from 90, inserted a ton of data, then
> did a clean shutdown. When I started again, I got the following exception:
> 11/09/13 12:29:09 INFO master.HMaster: Meta has HRI with HTDs. Updating meta
> now.
> 11/09/13 12:29:09 FATAL master.HMaster: Unhandled exception. Starting
> shutdown.
> java.lang.NegativeArraySizeException: -102
> at org.apache.hadoop.hbase.util.Bytes.readByteArray(Bytes.java:147)
> at
> org.apache.hadoop.hbase.HTableDescriptor.readFields(HTableDescriptor.java:606)
> at
> org.apache.hadoop.hbase.migration.HRegionInfo090x.readFields(HRegionInfo090x.java:641)
> at
> org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:133)
> at
> org.apache.hadoop.hbase.util.Writables.getWritable(Writables.java:103)
> at
> org.apache.hadoop.hbase.util.Writables.getHRegionInfoForMigration(Writables.java:228)
> at
> org.apache.hadoop.hbase.catalog.MetaEditor.getHRegionInfoForMigration(MetaEditor.java:350)
> at
> org.apache.hadoop.hbase.catalog.MetaEditor$1.visit(MetaEditor.java:273)
> at
> org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:633)
> at
> org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:255)
> at
> org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:235)
> at
> org.apache.hadoop.hbase.catalog.MetaEditor.updateMetaWithNewRegionInfo(MetaEditor.java:284)
> at
> org.apache.hadoop.hbase.catalog.MetaEditor.migrateRootAndMeta(MetaEditor.java:298)
> at
> org.apache.hadoop.hbase.master.HMaster.updateMetaWithNewHRI(HMaster.java:529)
> at
> org.apache.hadoop.hbase.master.HMaster.finishInitialization(HMaster.java:472)
> at org.apache.hadoop.hbase.master.HMaster.run(HMaster.java:309)
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