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https://issues.apache.org/jira/browse/ZOOKEEPER-2837?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andor Molnar resolved ZOOKEEPER-2837.
-------------------------------------
Resolution: Won't Fix
> Add a special START_SERVER_JVMFLAGS option only for `start` command to
> distinguish JVMFLAGS and SERVER_JVMFLAGS
> ---------------------------------------------------------------------------------------------------------------
>
> Key: ZOOKEEPER-2837
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2837
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.5.3
> Reporter: Benedict Jin
> Assignee: Benedict Jin
> Priority: Major
> Labels: pull-request-available
> Original Estimate: 72h
> Time Spent: 10m
> Remaining Estimate: 71h 50m
>
> Add a special START_SERVER_JVMFLAGS option only for `start` command to
> distinguish JVMFLAGS and SERVER_JVMFLAGS.
> If we use the normal way to add JVM options with `JVMFLAGS` in
> `conf/java.env`, then it will effect almost all shell scripts under `bin`
> directory. Even if using `SERVER_JVMFLAGS` will effect some commands like
> `zkServer.sh status`, include four-letters commands.
> For example, if the JVMFLAGS is
> ```bash
> export JVMFLAGS="-Xms3G -Xmx3G -Xmn1G -XX:+AlwaysPreTouch
> -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseParNewGC
> -XX:+UseConcMarkSweepGC -XX:+PrintGCDetails -XX:-PrintGCTimeStamps
> -Xloggc:/home/zookeeper/logs/zookeeper_`date '+%Y%m%d%H%M%S'`.gc
> -XX:-UseGCLogFileRotation -XX:NumberOfGCLogFiles=10 -XX:GCLogFileSize=64M"
> ```
> then we will get too many GC log files due to using the `mntr` four-letters
> command regularly in some monitor situation.
> ```bash
> $ ls ~/logs
> zookeeper_20170704175942.gc
> zookeeper_20170704180101.gc
> zookeeper_20170704180201.gc
> zookeeper_20170704180301.gc
> zookeeper_20170704180401.gc
> ...
> ```
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