[ML] GetJobStatsAction does not match open jobs correctly

[davidkyle]

The endpoint accepts a comma separated list of job Ids, group Ids, wildcarded Ids or _all which is then expanded into individual job Ids. But the task match function works on the unexpanded job id in the request rather than each of the expanded Ids. _all is handled correctly.

There are test cases covering getting the job stats for multiple jobs but the tests pass because the code assumes the job is closed then goes and gets the job stats for the job as if it was closed.

[elasticmachine]

Pinging @elastic/ml-core

[MichaHoffmann]

As a first timer, i'd like to try this one!

[dimitris-athanasiou]

Go for it @MichaHoffmann!

[klobin]

I am first timer to Open source technologies, can I git it a shot ??

[droberts195]

@MichaHoffmann are you working on this issue? If so I'll assign it to you to make that clearer.

@klobin if @MichaHoffmann is no longer planning to work on this then you're welcome to take it. But please don't start work until that's clear because I'd hate one of you to waste effort on duplication.

[ricardojaferreira]

If no one is working on this I would like to give it a try.

[MichaHoffmann]

Hey, sorry i'd like to continue to work on it!

[klobin]

@MichaHoffmann Do let me know, if you still work on it as I got the solution and refactored the code.

I will PR or I will look up for another bug fix, to merge into develop or master.

[henriquegoncalves98]

@davidkyle When you said that:'There are test cases covering getting the job stats for multiple jobs but the tests pass because the code assumes the job is closed then goes and gets the job stats for the job as if it was closed.' Can you specify or redirect me which tests were you talking about?