CEMT PERFORM JVMSERVER

Description

You can use the CEMT PERFORM JVMSERVER command to perform a range of JVM server administration activities. See Administering JVM servers with the CICS SPI for more background and information.

Options

DUMP

Perform a Java dump on the JVM server. Options are:

JAVACORE

A Javacore dump, containing vital information about the running JVM process.

HEAP

A Javacore heap dump, containing a snapshot of all objects resident in the JVM heap.

SNAPTRACE

A Java snap trace containing tracepoint data.

If no option is chosen, all dumps are produced.

GATHER DIAGNOSTICS

Gathers all available JVM diagnostics. See Using the PERFORM JVMSERVER SPI to gather JVM diagnostics for more information.

JVM

Specifies that your intended actions apply to all JVM server types.

JVMSERVER ( value )

Specifies the 8-character name of the JVM server you intend to apply actions to.

LIBERTY

Specifies that you intend to perform actions on a Liberty JVM server.

OSGI

Specifies that you intend to perform actions on an OSGI JVM server.

REFRESHPKGS

Refreshes packages in the JVM server's OSGi framework, allowing import and export packages to be rewired after the updated OSGi bundles are installed in the framework.

REFRESH

Instructs Liberty to refresh its application or configuration resources. Options are:

APPLICATION APPID(data-value)

Refresh an application file, where data-value is the id of the application file to refresh in a Liberty JVM server, as defined by the id attribute in the Liberty server.xml configuration.

CONFIG

Refresh configuration files.

SERVERDUMP

Runs the Liberty server dump command on the Liberty server associated with the JVM server. The command can be applied to either a running or a stopped server.

STACKTRACE TASKID(data-value)

Generates a stack trace for the Java thread, where data-value is the sequence number of the task running the Java thread.