Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

CPU Usage high when using G1GC

CPU Usage high when using G1GC

Contributor

Dear all.

 

Today , I'm trying to adopt G1GC for region server GC.

But someone told me below problem may occur.

And apache hbase patched this at 1.4

 

Is this problems are still in CDH 5.9 ? 

 

https://issues.apache.org/jira/browse/HBASE-16616
https://issues.apache.org/jira/browse/HBASE-16146

https://issues.apache.org/jira/browse/HBASE-17072

 

Thanks in advance.

2 REPLIES 2

Re: CPU Usage high when using G1GC

Expert Contributor

We are running 5.4.3 in prod on large hbase clusters with g1gc, have not noticed the problems you have listed. Not to say that they aren't there, just haven't noticed them in my experience. you can find which jiras cloudera has bundled into the 5.9 release here: http://www.cloudera.com/documentation/enterprise/release-notes/topics/cdh_rn_fixed_in_59.html#fixed_...

 

from a quick glance, it doesn't appear that the solution to those issues you linked are in the 5.9 release.

Highlighted

Re: CPU Usage high when using G1GC

Contributor
Thank you ben.
It was very helpful!