High Resource Usage by 11.2.0.1 EONS (java ..oracle.supercluster.impl.cluster.EONSServerImpl) (Doc ID 1062675.1)

Last updated on APRIL 30, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 to 11.2.0.1 [Release 11.2]
Information in this document applies to any platform.

Symptoms

11.2.0.1 Grid Infrastructure resource ora.eons uses high CPU, or memory; assuming Grid Infrastructure home is /ocw/grid, name of the eons process from "ps" command looks like:

/ocw/grid/jdk/jre//bin/java -Doracle.supercluster.cluster.server=eonsd -Djava.net.preferIPv4Stack=true -Djava.util.logging.config.file=/ocw/grid/srvm/admin/logging.properties -classpath /ocw/grid/jdk/jre//lib/rt.jar:/ocw/grid/jlib/srvm.jar:/ocw/grid/jlib/srvmhas.jar:/ocw/grid/jlib/supercluster.jar:/ocw/grid/jlib/supercluster-common.jar:/ocw/grid/ons/lib/ons.jar oracle.supercluster.impl.cluster.EONSServerImpl


Also, CRSD oraagent log ($GRID_HOME/log/$HOSTNAME/agent/crsd/oraagent_user/oraagent_user.log) shows repeated message like following:

2010-02-18 10:45:29.096: [ USRTHRD][1199987008] Thread:[RLB:FI1P1] ORA-02095: specified initialization parameter cannot be modified
2010-02-18 10:45:29.101: [ USRTHRD][1199987008] Thread:[RLB:FI1P1] ORA-02095: specified initialization parameter cannot be modified
2010-02-18 10:45:29.116: [ora.fi1p1.db][1283905856] [check] ORA-02095: specified initialization parameter cannot be modified
2010-02-18 10:45:29.265: [ora.fi1p1.db][1283905856] [check] ORA-02095: specified initialization parameter cannot be modified

Cause

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