Hi,
Can any one help to solve this problem.
Our application is EJB CMP2.1 applicaiton. When I deployed in Glassfish applicaiton server in cluster environment... its working fine for single user, but when multiple users are connected to the application and perform any EJB operation (insert, delete, update) server is getting hang and not at responding. and we are not getting any exception in server and applicaiton logs.
find the threads which are blocked and inactive when server is hang as attachment ( jstack <instance_pid>).
These are the JVM Option i set for Cluster config.
<jvm-options>-Dcom.sun.enterprise.server.ss.ASQuickStartup=false</jvm-options>
<jvm-options>-XX:+DisableExplicitGC</jvm-options>
<jvm-options>-Xss128k</jvm-options>
<jvm-options>-Dcom.sun.enterprise.web.ara.policyMethod=reserve</jvm-options>
<jvm-options>-Xms1024m</jvm-options>
<jvm-options>-XX:+UseParallelGC</jvm-options>
<jvm-options>-Dcom.sun.enterprise.web.connector.useCoyoteConnector=true</jvm-options>
<jvm-options>-DAllowMediatedWriteInDefaultFetchGroup=true</jvm-options>
<jvm-options>-XX:MaxPermSize=192m</jvm-options>
<jvm-options>-Djavax.management.builder.initial=com.sun.enterprise.ee.admin.AppServerMBeanServerBuilder</jvm-options>
<jvm-options>-Dcom.sun.appserv.pluggable.features=com.sun.enterprise.ee.server.pluggable.EEPluggableFeatureImpl</jvm-options>
<jvm-options>-Djava.endorsed.dirs=${com.sun.aas.installRoot}/lib/endorsed</jvm-options>
<jvm-options>-Djava.security.policy=${com.sun.aas.instanceRoot}/config/server.policy</jvm-options>
<jvm-options>-Djava.security.auth.login.config=${com.sun.aas.instanceRoot}/config/login.conf</jvm-options>
<jvm-options>-Dsun.rmi.dgc.server.gcInterval=3600000</jvm-options>
<jvm-options>-Xmx1024m</jvm-options>
<jvm-options>-server</jvm-options>
<jvm-options>-Djava.ext.dirs=${com.sun.aas.javaRoot}/lib/ext${path.separator}${com.sun.aas.javaRoot}/jre/lib/ext${path.separator}${com.sun.aas.instanceRoot}/lib/ext${path.separator}${com.sun.aas.derbyRoot}/lib${path.separator}${com.sun.aas.installRoot}/lib/jdbcdrivers</jvm-options>
<jvm-options>-Djdbc.drivers=org.apache.derby.jdbc.ClientDriver</jvm-options>
<jvm-options>-Dcom.sun.enterprise.config.config_environment_factory_class=com.sun.enterprise.config.serverbeans.AppserverConfigEnvironmentFactory</jvm-options>
<jvm-options>-Dcom.sun.enterprise.taglibs=appserv-jstl.jar,jsf-impl.jar</jvm-options>
<jvm-options>-Dcom.sun.enterprise.taglisteners=jsf-impl.jar</jvm-options>
<jvm-options>-XX:NewRatio=2</jvm-options>
<jvm-options>-Djavax.net.ssl.keyStore=${com.sun.aas.instanceRoot}/config/keystore.jks</jvm-options>
<jvm-options>-Djavax.net.ssl.trustStore=${com.sun.aas.instanceRoot}/config/cacerts.jks</jvm-options>
and Kernel Parameters are
------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 1048576
max total shared memory (kbytes) = 8388608
min seg size (bytes) = 1
------ Semaphore Limits --------
max number of arrays = 512
max semaphores per array = 1000
max semaphores system wide = 32000
max ops per semop call = 32
semaphore max value = 32767
------ Messages: Limits --------
max queues system wide = 2048
max size of message (bytes) = 65536
default max size of queue (bytes) = 65536
Thanks in Advance.
Ram
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