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From Jaideep Dhok <>
Subject Re: Hive Map Join Memory Limit
Date Wed, 29 May 2013 08:58:03 GMT
Looks are you getting the error in hive shell? You can control client
memory usage by setting HADOOP_HEAPSIZE in conf/


On Mon, May 27, 2013 at 12:34 AM, Peter Chu <> wrote:

> Hi, I ran into memory problem while using Map Join.  Errors below, how do
> I increase the map join memory size and if there are other solutions?
> Peter
> Execution log at: /tmp/hadoop/hadoop_20130525231414_3cc50fdd-7e7a-4bcf-baab-b465804c6e49.log
> 2013-05-25 11:14:41	Starting to launch local task to process map join;	maximum memory
= 932118528
> SLF4J: Class path contains multiple SLF4J bindings.
> SLF4J: Found binding in [jar:file:/home/hadoop/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: Found binding in [jar:file:/home/hadoop/.versions/hive-0.8.1/lib/slf4j-log4j12-1.6.1.jar!/org/slf4j/impl/StaticLoggerBinder.class]
> SLF4J: See for an explanation.
> 2013-05-25 11:15:04	Processing rows:	200000	Hashtable size:	199999	Memory usage:	776903128
rate:	0.833
> 2013-05-25 11:15:09	Processing rows:	214614	Hashtable size:	214614	Memory usage:	811592328
rate:	0.871
> 2013-05-25 11:15:09	Dump the hashtable into file: file:/tmp/hadoop/hive_2013-05-25_23-14-39_270_9001068894438685980/-local-10006/HashTable-Stage-6/MapJoin-bu-21--.hashtable
> Execution failed with exit status: 2
> Obtaining error information
> Task failed!
> Task ID:
>   Stage-10
> Logs:

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