Re: [hudson-dev] Plugin development: Job information in memory or disk

[Winston Prakash <winston.prakash@xxxxxxxxx>]

Adding Roy, who implemented this feature, to this thread.

Roy, could you please answer these questions.

Thanks,

Winston

On 12/2/2015 1:04 PM, Henrik Lynggaard Hansen wrote:

Hi

I know the recent Hudson versions does not keep everything in memory like the old pre-jenkins versions did.

As far as I know it only keeps basic job information and maybe recent build in memory but history and other rarely accessed parts are left on disk.

My question is related to how a plugin developer can take advantage of this functionality.

* What can I in a plugin do to ensure my information is kept in memory if it is an often used piece of information (to avoid heavy disk i/o)

* What can I in a plugin do to let my information be evicted from memory ?

* Once a piece of information is retrieved from disk, how long does it stay in memory and what is the eviction policy?

Best Regards

Henrik

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