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Posted to commits@kafka.apache.org by gu...@apache.org on 2015/12/01 20:16:40 UTC
kafka git commit: MINOR: Update LinkedIn JVM tuning settings
Repository: kafka
Updated Branches:
refs/heads/trunk eafc349a1 -> fb6ea6b17
MINOR: Update LinkedIn JVM tuning settings
This is a follow-up as the previous update was missing some changes.
Author: Ismael Juma <is...@juma.me.uk>
Reviewers: Todd Palino, Guozhang Wang
Closes #607 from ijuma/java-tuning-settings
Project: http://git-wip-us.apache.org/repos/asf/kafka/repo
Commit: http://git-wip-us.apache.org/repos/asf/kafka/commit/fb6ea6b1
Tree: http://git-wip-us.apache.org/repos/asf/kafka/tree/fb6ea6b1
Diff: http://git-wip-us.apache.org/repos/asf/kafka/diff/fb6ea6b1
Branch: refs/heads/trunk
Commit: fb6ea6b179b6e4b8a7b23063b17828b42361cd75
Parents: eafc349
Author: Ismael Juma <is...@juma.me.uk>
Authored: Tue Dec 1 11:16:33 2015 -0800
Committer: Guozhang Wang <wa...@gmail.com>
Committed: Tue Dec 1 11:16:33 2015 -0800
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docs/ops.html | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/kafka/blob/fb6ea6b1/docs/ops.html
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diff --git a/docs/ops.html b/docs/ops.html
index 623ab0f..04d4e7a 100644
--- a/docs/ops.html
+++ b/docs/ops.html
@@ -397,8 +397,9 @@ LinkedIn is currently running JDK 1.8 u5 (looking to upgrade to a newer version)
LinkedIn's tuning looks like this:
<pre>
--Xms4g -Xmx4g -XX:PermSize=48m -XX:MaxPermSize=48m -XX:+UseG1GC
+-Xmx6g -Xms6g -XX:MetaspaceSize=96m -XX:+UseG1GC
-XX:MaxGCPauseMillis=20 -XX:InitiatingHeapOccupancyPercent=35 -XX:G1HeapRegionSize=16M
+-XX:MinMetaspaceFreeRatio=50 -XX:MaxMetaspaceFreeRatio=80
</pre>
For reference, here are the stats on one of LinkedIn's busiest clusters (at peak):