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Waiting for “PX Deq Credit: send blkd”?

Waiting for “PX Deq Credit: send blkd”?

Occasionally I hear someone talking about how to reduce the waiting time of the event “PX Deq Credit: send blkd”. And it’s not uncommon to also realize that people try various artifices to reduce the time of this event, in most cases without properly understand the concept behind it. Or read that it is considered Idle event and do not give enough attention to a possible problem.

Whenever a SQL query is executed in parallel, is created a process called ...

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