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From guozh...@apache.org
Subject kafka git commit: MINOR: Update LinkedIn JVM tuning settings
Date Tue, 01 Dec 2015 19:16:55 GMT
Repository: kafka
Updated Branches:
  refs/heads/0.9.0 a412d8a23 -> 59c7f6c71


MINOR: Update LinkedIn JVM tuning settings

This is a follow-up as the previous update was missing some changes.

Author: Ismael Juma <ismael@juma.me.uk>

Reviewers: Todd Palino, Guozhang Wang

Closes #607 from ijuma/java-tuning-settings

(cherry picked from commit fb6ea6b179b6e4b8a7b23063b17828b42361cd75)
Signed-off-by: Guozhang Wang <wangguoz@gmail.com>


Project: http://git-wip-us.apache.org/repos/asf/kafka/repo
Commit: http://git-wip-us.apache.org/repos/asf/kafka/commit/59c7f6c7
Tree: http://git-wip-us.apache.org/repos/asf/kafka/tree/59c7f6c7
Diff: http://git-wip-us.apache.org/repos/asf/kafka/diff/59c7f6c7

Branch: refs/heads/0.9.0
Commit: 59c7f6c71ab70525331c3bd1e31b060af08d6744
Parents: a412d8a
Author: Ismael Juma <ismael@juma.me.uk>
Authored: Tue Dec 1 11:16:33 2015 -0800
Committer: Guozhang Wang <wangguoz@gmail.com>
Committed: Tue Dec 1 11:16:49 2015 -0800

----------------------------------------------------------------------
 docs/ops.html | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/kafka/blob/59c7f6c7/docs/ops.html
----------------------------------------------------------------------
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):


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