[jira] [Assigned] (HIVE-10707) CBO: debug logging OOMs

["Gopal V (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-10707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gopal V reassigned HIVE-10707:
------------------------------

    Assignee: Gopal V

> CBO: debug logging OOMs
> -----------------------
>
>                 Key: HIVE-10707
>                 URL: https://issues.apache.org/jira/browse/HIVE-10707
>             Project: Hive
>          Issue Type: Bug
>          Components: CBO
>            Reporter: Gopal V
>            Assignee: Gopal V
>            Priority: Trivial
>
> {code}
> hive> source xcross.sql;
> OK
> Time taken: 0.837 seconds
> Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
>         at java.util.Arrays.copyOf(Arrays.java:3332)
>         at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:137)
>         at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:121)
>         at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:421)
>         at java.lang.StringBuilder.append(StringBuilder.java:136)
>         at org.apache.hadoop.hive.ql.parse.ASTNode.dump(ASTNode.java:111)
>         at org.apache.hadoop.hive.ql.parse.ASTNode.dump(ASTNode.java:119)
>         at org.apache.hadoop.hive.ql.parse.ASTNode.dump(ASTNode.java:119)
>         at org.apache.hadoop.hive.ql.parse.ASTNode.dump(ASTNode.java:119)
>         at org.apache.hadoop.hive.ql.parse.ASTNode.dump(ASTNode.java:119)
> {code}
> The query contains 360 join clauses, wrapped in a UNION ALL.
> Looks like {{genOpTree}} does 
> {code}
>           this.ctx.setCboInfo("Plan optimized by CBO.");
>           this.ctx.setCboSucceeded(true);
>           LOG.debug(newAST.dump());
>           }
> {code}
> the debug logging OOMs.



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