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HBase >> mail # user >> long running query

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long running query

I'm running a query on cluster and result list can be too large. When
running query(for example on 5.Node), 5.Node stopped.

I looked at log files and I got an error message as

java.lang.OutOfMemoryError: java heap space
-XX:OnOutOfMemoryError="Kill -9 %p"
Executing /bin/sh -c "kill -9 28321"

How can I do to prevent this error.