It seems to contain some sort of git cache. Thankfully(?) all the
directories are empty.
> /mnt/nfs/jenkins_home$ ls caches/
> git-0d341dcbcc7c33c4efc44a104b892b60
> git-79660c3529cacbdbe1ac71b7c36e1a3f
> git-0d341dcbcc7c33c4efc44a104b892b60@tmp
> git-79660c3529cacbdbe1ac71b7c36e1a3f@tmp
> git-0fba0b0ccfb8c3ca2809f860ea497fbf
> git-84f1d58c7f2dde1b560bd3471e85cf5f
> git-0fba0b0ccfb8c3ca2809f860ea497fbf@tmp
> git-84f1d58c7f2dde1b560bd3471e85cf5f@tmp
> git-117076ea5a481ebdd2beea321164041c
> git-93d0b594de0d6af9e1ac33ea8dd03742
> git-117076ea5a481ebdd2beea321164041c@tmp
> git-93d0b594de0d6af9e1ac33ea8dd03742@tmp
> git-20faeeea626404c43e0af02b3443a0ca
> git-bedd02d2756f33f2b6dd8e496041e9a5
> git-20faeeea626404c43e0af02b3443a0ca@tmp
> git-bedd02d2756f33f2b6dd8e496041e9a5@tmp
> git-6637777a4358cb957136aec86030ea76
> git-ca5af9d29c97e0a07af654ef31dbcd93
> git-6637777a4358cb957136aec86030ea76@tmp
> git-cde48c33a9866d69b3dab200ae527b91
> git-6c18e173e843c139db9b4bcd2949c277
> git-cde48c33a9866d69b3dab200ae527b91@tmp
> git-6c18e173e843c139db9b4bcd2949c277@tmp
> git-ea66c44ab8389abea26eb7f2f93ee8d0
> git-72cee31ae083a2db1f8fb009bcf624ed
> git-ea66c44ab8389abea26eb7f2f93ee8d0@tmp
> git-72cee31ae083a2db1f8fb009bcf624ed@tmp
In order to minimize the performance hit from putting jenkins_home on NFS,
I'm trying to find the directories which are frequently accessed
directories and has many small files
> /mnt/nfs/jenkins_home$ ls -d */
> .cache/ ?
> .groovy/ ?
> .java/ ?
> caches/ ?
> config-history/
> fingerprints/
> init.groovy.d/
> jobs/
builds/ moved out to local disk and not backed up
> workspace/ moved out to local disk and not backed up
logs/
>
nodes/
> plugins/ moved out to local disk and not backed up
> secrets/
> updates/
> userContent/
> users/
> war/ moved out to local disk and not backed up
> workflow-libs/
>
What are some of the other directories in here that I can/should move out
of NFS? Ideally they should be ephemeral and frequently accessed.
Thank you
On Tuesday, February 5, 2019 at 6:08:46 AM UTC-8, Baptiste Mathus wrote:
>
> I've had a quick look, and I'm not sure I ever saw a caches directory
> under JENKINS_HOME (this is very possible I just don't remember).
> Can you possibly list what's in there so we can try and understand what is
> generating this directory?
>
> We segregate data quite aggressively already in Evergreen and I do not
> remember of such a directory/option.
>
> https://github.com/jenkins-infra/evergreen/blob/master/distribution/Dockerfile#L22-L34
>
> Thanks
>
> Le dim. 3 févr. 2019 à 00:44, Calvin Park <[email protected]
> <javascript:>> a écrit :
>
>> I'm running $JENKINS_HOME on NFS. Due to the performance penalty, I want
>> to move out as many temp directories as I can to local disk.
>>
>> Thus far I've moved
>>
>> -
>>
>> -Djenkins.model.Jenkins.workspacesDir='/local_cache/workspace/${ITEM_FULL_NAME}'
>> - --webroot=/local_cache/web
>> - --pluginroot=/local_cache/plugin
>>
>> In $JENKINS_HOME there's caches directory which seems like an obvious
>> choice to move out.
>>
>> 1. Is there a way to configure the location for $JENKINS_HOME/caches?
>> 2. What are other directories that can be recreated, thus can be
>> moved out of the NFS?
>>
>> Thanks!
>>
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