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From shsh...@tsmc.com
Subject Re: SparkSQL OOM issue
Date Wed, 08 Jul 2015 01:39:05 GMT
Hi Shawn,

Thank alot that's actually the last parameter we overlooked!!
I'm able to run the same sql on spark now if I set the spark.driver.memoory
larger,
thanks again!!

--
Best Regards,
Felicia Shann
單師涵
+886-3-5636688 Ext. 7124300


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Hi,
Where did OOM happened?
In Driver or executor?
Sometimes SparkSQL Driver OOM on tables with large number partitions.
If so, you might want to increase it in spark-defaults.conf
spark.driver.memory

Shawn



> On Jul 7, 2015, at 3:58 PM, shshann@tsmc.com wrote:
>
>
> Dear all,
>
> We've tried to use sparkSql to do some insert from A table to B table
> action where using the exact same SQL script,
> hive is able to finish it but Spark 1.3.1 would always end with OOM
issue;
> we tried several configuration including:
>
> --executor-cores 2
> --num-executors 300
> --executor-memory 7g
> sconf.set("spark.storage.memoryFraction", "0")
>
> but none of them can change the result of error:
> java.lang.OutOfMemoryError: GC overhead limit exceeded
> is there any other configuration we can make? Thanks!
>
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                                                         TSMC PROPERTY       
 This email communication (and any attachments) is proprietary information   
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