[cloudstack] branch 4.14 updated: packaging: enable Parallel Collector GC for management server (#4407)

[ro...@apache.org]

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rohit pushed a commit to branch 4.14
in repository https://gitbox.apache.org/repos/asf/cloudstack.git


The following commit(s) were added to refs/heads/4.14 by this push:
     new b27b8d0  packaging: enable Parallel Collector GC for management server (#4407)
b27b8d0 is described below

commit b27b8d0f0a863e6f58f732d48eb035d68d1f6702
Author: Rohit Yadav <ro...@shapeblue.com>
AuthorDate: Mon Oct 19 13:10:53 2020 +0530

    packaging: enable Parallel Collector GC for management server (#4407)
    
    The default GC algorithm G1 that is enabled by default with Java11
    serves well on multiprocessor machines with large amount of memory where
    GC is probablistic with low pauses, where response time is more
    important than throughput and GC is kept shorter.
    
    The CloudStack management server is largely a multi-threaded server
    application that handles and orchestrates several network requests, and
    has the default max. heap size of only 2G that can be considered a
    small/medium application from a heap size perspective. Perhaps a more
    aggresive GC algorithm such as ParallelGC as used in Java8 and before
    (that is previous CloudStack releases) would serve better for throughput
    and cause more aggresive GC.
    
    Reference: https://docs.oracle.com/en/java/javase/11/gctuning/available-collectors.html#GUID-13943556-F521-4287-AAAA-AE5DE68777CD
    
    Signed-off-by: Rohit Yadav <ro...@shapeblue.com>
---
 packaging/systemd/cloudstack-management.default | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packaging/systemd/cloudstack-management.default b/packaging/systemd/cloudstack-management.default
index d59ebad..a431e8b 100644
--- a/packaging/systemd/cloudstack-management.default
+++ b/packaging/systemd/cloudstack-management.default
@@ -15,7 +15,7 @@
 # specific language governing permissions and limitations
 # under the License.
 
-JAVA_OPTS="-Djava.security.properties=/etc/cloudstack/management/java.security.ciphers -Djava.awt.headless=true -Dcom.sun.management.jmxremote=false -Xmx2G -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/log/cloudstack/management/ -XX:ErrorFile=/var/log/cloudstack/management/cloudstack-management.err "
+JAVA_OPTS="-Djava.security.properties=/etc/cloudstack/management/java.security.ciphers -Djava.awt.headless=true -Dcom.sun.management.jmxremote=false -Xmx2G -XX:+UseParallelGC -XX:MaxGCPauseMillis=500 -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/var/log/cloudstack/management/ -XX:ErrorFile=/var/log/cloudstack/management/cloudstack-management.err "
 
 CLASSPATH="/usr/share/cloudstack-management/lib/*:/etc/cloudstack/management:/usr/share/cloudstack-common:/usr/share/cloudstack-management/setup:/usr/share/cloudstack-management:/usr/share/java/mysql-connector-java.jar"