topic Re: rootpid is unique for each run? in Talend Studio

rootpid is unique for each run?

Anjalivnr — Sat, 16 Nov 2024 01:38:34 GMT

Hi All ,

Im using the talend inbuilt logging mechanism in my project. There are three files generated. stats , meter and log files. Im trying to identify a unique value in all these three files. Can someone confirm whether root_pid in all these files will be unique for each run.?

Thanks.

Re: rootpid is unique for each run?

manodwhb — Wed, 19 Aug 2020 05:14:09 GMT

@Anjali Ramesh , As per my knowledge root_pid will be same for all those three files for the each run.

Root_pid: Process ID of the root Job if applicable. If not applicable, pid of current Job is duplicated.

Thanks,

Manohar

Re: rootpid is unique for each run?

Anonymous — Wed, 19 Aug 2020 05:17:42 GMT

Yes, the rootpid is always the same in the main job and all it's child jobs. For more details about pid, father_pid and root_pid, you can read this topic.

Regards

Shong

Re: rootpid is unique for each run?

Anjalivnr — Wed, 19 Aug 2020 13:19:05 GMT

Thanks for your replies.

can you please confirm , if rootpid will be unique for each job run?Suppose if im going to thousand talend jobs. Will rootpid be unique for each run?

Re: rootpid is unique for each run?

manodwhb — Wed, 19 Aug 2020 13:33:36 GMT

@Anjali Ramesh , yes rootpid will be unique for each job run.

Thanks,

Manohar

Re: rootpid is unique for each run?

Anjalivnr — Tue, 22 Sep 2020 05:21:45 GMT

@Manohar B .. Hi Manohar ,

root_pid always generated some 6 digits alpha numeric. like PeEfel. Today i when the job , i noticed root_pid was generated like 20200921163537_o23cr. the datetimestamp was appended to the root_pid. can you help , in what case root_pid will always be generated with timestamp.

Re: rootpid is unique for each run?

manodwhb — Tue, 22 Sep 2020 05:39:15 GMT

@Anjali Ramesh , Yes I have tested and root_pid is 6 digits of alpha numeric. I do not understand how it has generated with date ? have you changed any setting in Talend regarding root_pid?

Thanks,

Manohar

Re: rootpid is unique for each run?

Anjalivnr — Tue, 22 Sep 2020 06:19:49 GMT

Hi Manohar ,

I ran the job from remote server. Guess that could be the reason. Not sure though

Re: rootpid is unique for each run?

manodwhb — Tue, 22 Sep 2020 06:51:35 GMT

@Anjali Ramesh ,it could be that server root_pid they might have set that way.

Thanks,

Manohar

Re: rootpid is unique for each run?

Anjalivnr — Fri, 25 Sep 2020 04:06:33 GMT

Hi Manohar ,

Where can i find that root_pid setting in talend? can you please help

Re: rootpid is unique for each run?

lennelei — Mon, 28 Sep 2020 12:45:36 GMT

As far as I know, there is no such settings.

Technically, there is nothing but probability that guarantees the uniqeness of the root_pid.

However, root_pid can be set when running a job from outside the Studio by appending "--root_pid=<your_value>" as parameter.

For example :

java -Xms128M -Xmx2048M -cp ... project_name.job_name_0_1.JOB_NAME --context=CTX --root_pid=20200928-144100-xxx

Very useful when you use external scheduler. And that's probably what's done with the remote server execution.