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https://issues.apache.org/jira/browse/HIVE-1511?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13745157#comment-13745157
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Brock Noland commented on HIVE-1511:
------------------------------------
I keep running into this:
{noformat}
com.esotericsoftware.kryo.KryoException: Encountered unregistered class ID: 20
Serialization trace:
opParseCtxMap (org.apache.hadoop.hive.ql.plan.MapWork)
mapWork (org.apache.hadoop.hive.ql.plan.MapredWork)
at
com.esotericsoftware.kryo.util.DefaultClassResolver.readClass(DefaultClassResolver.java:119)
{noformat}
> Hive plan serialization is slow
> -------------------------------
>
> Key: HIVE-1511
> URL: https://issues.apache.org/jira/browse/HIVE-1511
> Project: Hive
> Issue Type: Improvement
> Affects Versions: 0.7.0
> Reporter: Ning Zhang
> Assignee: Mohammad Kamrul Islam
> Attachments: HIVE-1511.4.patch, HIVE-1511.5.patch, HIVE-1511.6.patch,
> HIVE-1511.patch, HIVE-1511-wip2.patch, HIVE-1511-wip3.patch,
> HIVE-1511-wip4.patch, HIVE-1511-wip.patch
>
>
> As reported by Edward Capriolo:
> For reference I did this as a test case....
> SELECT * FROM src where
> key=0 OR key=0 OR key=0 OR key=0 OR key=0 OR key=0 OR key=0 OR key=0
> OR key=0 OR key=0 OR key=0 OR
> key=0 OR key=0 OR key=0 OR key=0 OR key=0 OR key=0 OR key=0 OR key=0
> OR key=0 OR key=0 OR key=0 OR
> ...(100 more of these)
> No OOM but I gave up after the test case did not go anywhere for about
> 2 minutes.
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