Github user kishoreg commented on the pull request:
https://github.com/apache/helix/pull/30#issuecomment-125761175
This is a temporary fix that allows jobs to continue if few tasks from the
previous jobs are stuck. This is controlled via maxParallel jobs config
parameter. So we can still get the existing behavior by setting parallel jobs
to 1. From jcongrui comment it looks like a temporary fix to unblock the
release and we will revisit task framework design and implementation.
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