[CASSANDRA-8477] CMS GC can not recycle objects

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Duplicate

Environment

2.1.1 or 2.1.2-SNAPSHOT(after CASSANDRA-8459 resolved)

• Severity: Normal
• Assignee: Sylvain Lebresne
• Reporter: Phil Yang

Authors

Sylvain Lebresne

• Created: 13/Dec/14 07:30
• Updated: 16/Apr/19 09:31
• Resolved: 20/Dec/14 13:10

Description

I have a trouble in my cluster that CMS full gc can not reduce the size of old gen. Days ago I post this problem to the maillist, people think it will be solved by tuning the gc setting, however it doesn't work for me.

Then I saw a similar bug in CASSANDRA-8447, but benedict think it is not related. With the jstack on https://gist.github.com/yangzhe1991/755ea2a10520be1fe59a, benedict find a bug and resolved it in CASSANDRA-8459. So I build a latest version on 2.1 branch and run the SNAPSHOT version on the nodes with gc trouble.

However, there is still the gc issue. So I think opening a new tick and post more information is a good idea. Thanks for helping me.

Issue Links

• duplicates: CASSANDRA-8099 Refactor and modernize the storage engine