Possible Memory Leak

[Aaron Hepp]

Looks like this has started with 4.0.7, but will need to look into 
further.  On Sunday I restarted my VPS (Ubuntu 16.04 core 4vCPU and 6GB 
memory)  The only applications I have running on this one is the items 
needed to run OpenMeeting (java, libreoffice, etc)  When I start up the 
process the memory hovers around 850MB.  During the day people come and 
go max at any given time is 15.  Only one room; items in that room are 
chat, a screen share, and a single mic broadcasting.  At the end of the 
day after everyone is out and the items stopped (screenshare and mic) 
the memory usage reports around 1.5GB.  The next day everyone comes and 
goes as previous day idle memory after everyone is gone is 2.1GB, today 
idle was running @ 2.5GB.  What I have noticed is that usually on the 
2nd delay there starts being a delay in the mic.  Audio is broadcast but 
there is about a 30 second delay.  Today was got all the way up to about 
a minute delay when the audio would be broadcasted and it gets heard by 
the users.  So tonight I was testing and the 1min audio delay was still 
there.  Stop and started the red5 process re-entered the room and the 
delay was gone.  I have included the options in the red5 file to maybe I 
could need some tweaking.  As stated this did not really show up till 
this 4.0.7 as there had been times the process had ran for weeks without 
being restarted and the memory usage would never get above 2GB.

    JVM_OPTS="-Xms1024m -Xmx4096m -Xverify:none -XX:+TieredCompilation 
-XX:+UseBiasedLocking -XX:InitialCodeCacheSize=8m 
-XX:ReservedCodeCacheSize=32m 
-Dorg.terracotta.quartz.skipUpdateCheck=true -XX:MaxMetaspaceSize=128m  
-XX:+DisableExplicitGC -XX:+UseParNewGC -XX:+UseConcMarkSweepGC 
-XX:ParallelGCThreads=4"