答复: 答复: compute SQL returned data.

[Shawn Du <sh...@neulion.com.cn>]

Yes. For my case, before submitting jobs, I need query data in task, so if
no data, I have to submit an empty job which does nothing, this is my
workaround.
Is there "normal" ways for this case?

Thanks
Shawn

-----邮件原件-----
发件人: vkulichenko [mailto:valentin.kulichenko@gmail.com] 
发送时间: 2017年1月11日 3:31
收件人: user@ignite.apache.org
主题: Re: 答复: compute SQL returned data.

Hi Shawn,

This means what it says - ComputeTask.map() method returned no jobs, i.e.
null or empty map.

-Val



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Re: 答复: 答复: compute SQL returned data.

[vkulichenko <va...@gmail.com>]

Shawn,

map() method is execute locally on the master node, so you can do all the
checks outside the task and then execute only if needed. Will this work?

-Val



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