https://bugzilla.wikimedia.org/show_bug.cgi?id=47120
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Bug ID: 47120
Summary: Jenkins is slow to start
Product: Wikimedia
Version: wmf-deployment
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Continuous integration
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Classification: Unclassified
Mobile Platform: ---
Created attachment 12076
--> https://bugzilla.wikimedia.org/attachment.cgi?id=12076&action=edit
jstack trace taken while Jenkins is busy reading files
Whenever restart Jenkins it takes roughly half an hour to start up. Running
strace on the process it is reading all the build histories.
I have attached a jstack taken during startup. An interesting thread is 25437.
So I guess whenever Jenkins start a project, it ends up reading all the build
history for all projects which is definitively a slow operation given the
number of builds logs we keep.
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