Dear Gurus,
We are using NW2004s EP7.0 system on SP21. Kernel is Release700 SP236
We were experiencing java performance issue and the system was dead slow in its response.
Initially we had single server node with Heap size of 1GB.
To deal with the problem we added two more Java server nodes and assigned 1280MB and 1536MB respectively.
Since then the server is running fine but the nodes 2 and 3 are restarting very frequently.
Idx
Name
PID
State
Error
Restart
---
0
dispatcher
7494
Running
0
yes
1
server0
7495
Running
0
yes
2
server1
29075
Starting
1
yes
3
server2
29268
Starting
0
yes
4
SDM
7498
Running
0
yes
-
As far as I know heap memory is reason that can cause the node to restart due to insufficient memory.
To deal with any possible java I copied all the parameters from node1 to node2 and node three.
Please check below the node properties of the restarting nodes..
-Djava.security.policy=./java.policy
-Djava.security.egd=file:/dev/urandom
-Dorg.omg.CORBA.ORBClass=com.sap.engine.system.ORBProxy
-Dorg.omg.CORBA.ORBSingletonClass=com.sap.engine.system.ORBSingletonProxy
-Dorg.omg.PortableInterceptor.ORBInitializerClass.com.sap.engine.services.ts.jts.ots.PortableInterceptor.JTSInitializer
-Djavax.rmi.CORBA.PortableRemoteObjectClass=com.sap.engine.system.PortableRemoteObjectProxy
-Djco.jarm=1
-XX:MaxPermSize=512M
-XX:PermSize=512M
-Xmx1536m
-Xms1536M
-XX:NewSize=307M
-XX:MaxNewSize=307M
-XX:+DisableExplicitGC
-verbose:gc
-Xloggc:GC.log
-XX:+PrintGCDetails
-XX:+PrintGCTimeStamps
-Djava.awt.headless=true
-Dsun.io.useCanonCaches=false
-XX:SoftRefLRUPolicyMSPerMB=1
-XX:SurvivorRatio=2
-XX:TargetSurvivorRatio=90
-XX:+UseParNewGC
-XX:+PrintClassHistogram
-XX:ReservedCodeCacheSize=64M
-XX:CodeCacheMinimumFreeSpace=2M
*********************************************
I am not able to find any satisfactory log entries in thread dump trace/default logs.
This is happening every 1/2 an hour.
Please suggest.
Regards
Vishal