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https://issues.apache.org/jira/browse/HIVE-17209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rajesh Balamohan updated HIVE-17209:
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Attachment: HIVE-17209.1.patch
\cc [~gopalv]
> ObjectCacheFactory should return null when tez shared object registry is not
> setup
> ----------------------------------------------------------------------------------
>
> Key: HIVE-17209
> URL: https://issues.apache.org/jira/browse/HIVE-17209
> Project: Hive
> Issue Type: Bug
> Reporter: Rajesh Balamohan
> Priority: Minor
> Attachments: HIVE-17209.1.patch
>
>
> HIVE-15269 introduced dynamic min/max bloom filter
> ("hive.tez.dynamic.semijoin.reduction=true"). This needs to access
> ObjectCache and in tez, ObjectCache can only be created by {{TezProcessor}}.
> In the following case {{AM --> splits -->
> OrcInputFormat.pickStripes::evaluatePredicateMinMax -->
> DynamicValue.getLiteral --> objectCache access}}, AM ends up throwing lots of
> NPE since AM has not created ObjectCache.
> Orc reader catches these exceptions, skips PPD and proceeds further. For e.g,
> in Q95 it ends up throwing ~30,000 NPE before completing split information.
> ObjectCacheFactory should return null when tez shared object registry is not
> setup.
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