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Date: Sat, 17 Sep 2011 01:20:09 +0000 (UTC)
From: "Todd Lipcon (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
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Subject: [jira] [Commented] (HBASE-4388) Second start after migration from
 90 to trunk crashes
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    [ https://issues.apache.org/jira/browse/HBASE-4388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13106986#comment-13106986 ] 

Todd Lipcon commented on HBASE-4388:
------------------------------------

Right, "internal version number" was meant to be something where we start with 0x0001, then increment each time we need a migration. Define constants for each new feature:
{code}
static final int NO_HTD_IN_HRI_VERSION = 1;
static final int NEXT_TIME_WE_CHANGE_SOMETHING_VERSION = 2;
...
{code}


> 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: Ted Yu
>            Priority: Blocker
>             Fix For: 0.92.0
>
>         Attachments: 4388.txt, 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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