[jira] [Updated] (HIVE-17209) ObjectCacheFactory should return null when tez shared object registry is not setup

["Rajesh Balamohan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-17209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan updated HIVE-17209:
------------------------------------
    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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