Jobserver cache

Five Stars

Jobserver cache

Hi,

I would like to have some details about Jobserver cache:

  • how can be enabled/disabled
  • how it works under the hood
  • how it can affect performance and governance

I found this old post jobserver cache but it doesn't exaclty answer my questions. Furthermore, no proof on official docs.

Moderator

Re: Jobserver cache

Hello,

The cache folder will contain all the supporting libraries external libraries, as well as the executable jar files in a unique folder under the lib parent cache folder. All the common libraries will be maintained in the cache folder where as the jobs and the routine jar files will be stored in specific folders (like version control) for each deployment of a job

Here is the path for cache on the execution server

<Talend_Home>\jobserver\agent\TalendJobServerFiles\cache

The jobserver has a parameter to enable or disabling the caching of the jobs dependency.
Dependency checksum are calculated on each side before deployment. 

Best regards

Sabrina

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Don't forget to give kudos when a reply is helpful and click Accept the solution when you think you're good with it.
Six Stars

Re: Jobserver cache

Hi Sabrina,

 

Where can we find this parameter to enable/disable the jobserver cache?

 

Thanks a lot,

Kind regards,

Michael

Four Stars

Re: Jobserver cache

Sabrina, can you respond on this?

Moderator

Re: Jobserver cache

Hello,

You are not supposed to clear the cache manually.

The numerical name is the "Dependency checksum" of the lib. What's your requirement for jobserver cache?

Best regards

Sabrina

--
Don't forget to give kudos when a reply is helpful and click Accept the solution when you think you're good with it.
Highlighted
Six Stars

Re: Jobserver cache

Hi All,

 

Example use case : we turned off the jobserver cache to be able to use the 'Dynamic job' setting in tRunJob.

 

We've found the parameter (which is strangely enough a TAC level parameter) at following location : 

 

<TAC PATH>/apache-tomcat/webapps/org.talend.administrator/WEB-INF/classes/configuration.properties

 

Add the following property : jobServer.useCache=false

Then restart TAC.

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