Slow Queries

Queries can all of a sudden slow down, when things were all hunky dory. This is the biggest challenge that developers and architects face.

Getting the data that could establish the root-cause of sudden changes in behaviour in real-time is difficult. Here's how Acceldata proposes the response to such a situation.

Please note that this method of debugging slow queries/jobs applies for the following stacks.

Spark
Hive Tez, MR, LLAP
Hive on Spark

Compare Differences

The section highlighted in Yellow provides sufficient information about runtime parameters and configuration parameters if they have changed.

Data Details

Queue utilization

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