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From Jihoon Son <jihoon...@apache.org>
Subject Re: How many task runner instances corresponding to one container?
Date Sat, 19 Apr 2014 02:07:36 GMT
Hi Min.
That's the exact way that Tajo works.
For each exec block, only one container is launched to start a task runner
in each worker.
A task runner can execute multiple tasks of the correspond exec block.

2014. 4. 19. 오전 9:15에 "Min Zhou" <coderplay@gmail.com>님이 작성:

> Hi all,
> It seems that for each container, TajoQueryMaster will launch an task
> through rpc. But this task is for multiple QueryUnitAttempts which will be
> on the same node with the same ExecutionBlockId, right?  In another words,
> in one node, one ExecutionBlockId corresponding to one container,  and may
> include multiple tasks, right?
> Thanks,
> Min
> --
> My research interests are distributed systems, parallel computing and
> bytecode based virtual machine.
> My profile:
> http://www.linkedin.com/in/coderplay
> My blog:
> http://coderplay.javaeye.com

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