[JIRA] (JENKINS-58980) support-core should only collect the latest GC logs

aburdajewicz@cloudbees.com (JIRA)

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Aug 18, 2019, 9:18:03 PM8/18/19

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Allan BURDAJEWICZ assigned an issue to Allan BURDAJEWICZ

Jenkins /

JENKINS-58980

support-core should only collect the latest GC logs

Change By:	Allan BURDAJEWICZ
Assignee:	Emilio Escobar Allan BURDAJEWICZ

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aburdajewicz@cloudbees.com (JIRA)

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Aug 18, 2019, 9:18:03 PM8/18/19

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Allan BURDAJEWICZ created an issue

Jenkins /

JENKINS-58980

support-core should only collect the latest GC logs

Issue Type:	Bug
Assignee:	Emilio Escobar
Components:	support-core-plugin
Created:	2019-08-19 01:17
Environment:	support-core:2.34+
Priority:	Major
Reporter:	Allan BURDAJEWICZ

When an instance has gigabytes of GC log files, the support bundle generator can effectively take forever. This not only causes high load for Jenkins, but can prevent from generating a support bundle.

Steps to reproduce

1. Add 100's GB of log files to the GC folder (specified in JVM startup flags)
2. Try to collect a Bundle

Expected Behavior: The bundle is generated in a reasonable amount of time and just includes the most recent data from the GC logs instead of trying to include all of them.

Actual Behavior: You will see that the bundle collection times out or runs forever.

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aburdajewicz@cloudbees.com (JIRA)

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Aug 18, 2019, 9:22:02 PM8/18/19

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Allan BURDAJEWICZ commented on

JENKINS-58980

Re: support-core should only collect the latest GC logs

It is usually up to the admin to set up a rotation process (such as logrotate or a cron) although it would be useful to limit this in support-core to avoid performances issues when generating the bundle or producing huge bundles.

A time limit might of the last 48 hours might be a good start. We could make this configurable via a system property.

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aburdajewicz@cloudbees.com (JIRA)

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Aug 18, 2019, 9:43:02 PM8/18/19

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Allan BURDAJEWICZ started work on

JENKINS-58980

Change By:	Allan BURDAJEWICZ
Status:	Open In Progress

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aburdajewicz@cloudbees.com (JIRA)

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Aug 18, 2019, 11:36:02 PM8/18/19

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Allan BURDAJEWICZ updated

JENKINS-58980

Jenkins /

JENKINS-58980

support-core should only collect the latest GC logs

Change By:	Allan BURDAJEWICZ
Status:	In Progress Review

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manuelramonleonjimenez@gmail.com (JIRA)

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Aug 21, 2019, 10:30:02 AM8/21/19

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Ramon Leon commented on

JENKINS-58980

Re: support-core should only collect the latest GC logs

I see this ticket as an Improvement, not a bug. It's logical that it takes a long time to gather the files if GC log is huge. WDYT Evaristo Gutierrez?