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Query Performance in Impala

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Query Performance in Impala

New Contributor

I have a cloudera 5.5 (3 nodes)cluster. I am using Impala1.1 for my Queries.

Previously the RAM on 1 machine was 40GB(master node) and other two were 2 GB(datanodes) each. It was taking long to execute queries.

Now i have increased RAM of datanodes to 16GB each but there is no considerable difference in execution time.

Do i need to configure anything for impala to take effect of increased RAM.

Please help me out.


Thanks in Advance
Ankita Singla