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Hive query metrics about cpu and memory


I would like to know if there is a way to get metrics about cpu and memory usage.

For example, I would like to highlight the effect of a skew join on reducers, disk I/O, mapper memory usage during the querying, etc.

I saw really interesting slides about performance comparison (Hortonworks), with some graphes and bars, etc. and I was wondering the method to get those values...



Super Mentor

Thanks a lot for your reply.

But, through JMX, will I be able to monitor a particular query ? Or just the global activity of the JVM ?

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