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Joel D

I've a job which takes a HiveQL joining 2 tables (2.5 TB, 45GB), repartitions to 100  and then does some other transformations. This executed fine earlier.

Job stages:
Stage 0: hive table 1 scan 
Stage 1: Hive table 2 scan
Stage 2: Tungsten exchange for the join
Stage 3: Tungsten exchange for the reparation

Today the job is stuck in Stage 2. Out of 200 tasks which are supposed to be executed none of them have started but 290 have failed due to preempted executors.

Any inputs on how to resolve this issue? I'll try reducing the executor memory to see if resource allocation is the issue.