CICSplex JVM Analysis attribute group
The CICSplex JVM Analysis attributes report the characteristics of all the JVMs in your CICS regions. Use this data to monitor the age of a JVM, classcache, phasingout, and reuse status of your JVMs.
Age Is the number of seconds since the JVM was initialized.
Allocated Age Is the number of seconds the JVM has been allocated to a task. It returns a fullword binary value giving the number of seconds for which the JVM has been allocated to its task, or zero if the JVM is not currently allocated to a task.
CICS Region Name Indicates the job name or modify ID of the CICS region being monitored. Each CICS region in a z/OS operating system has a unique name. This name is an alphanumeric string, with a maximum of eight characters, and case-sensitive. CICS region names are always in uppercase characters.
Classcache status Indicates whether the JVM is a worker JVM or not. It returns a value indicating whether the JVM is a worker JVM dependent on the shared class cache. These are the values:
- CLASSCACHE
- The JVM profile for this JVM specified the use of the shared class cache.
- NOCLASSCACHE
- The JVM profile for this JVM did not specify the use of the shared class cache
Execution Key Is the execution key that the JVM is running in. It returns a value indicating the EXECKEY of the JVM. These are the values:
- CICSEXECKEY
- The program executes in CICS key.
- USEREXECKEY
- The program executes in user key.
Origin Node Is the combination of the z/OS System ID (SMFID) and the CICS region name. The value format is an alphanumeric string, maximum 32 bytes, and case-sensitive.
Phasingout status Indicates if the JVM is being phased out. It returns a value indicating whether the JVM is being phased out as a result of an EXEC CICS SET JVMPOOL TERMINATE or EXEC CICS PERFORM CLASSCACHE TERMINATE command (or the equivalent CEMT commands). These are the values:
- PHASEOUT
- The JVM is being phased out.
- NOPHASEOUT
- The JVM is not being phased out. It is available for allocation, or is available for allocation when the current allocation is ended.
PROFILE Is the eight character name of the JVM profile used to initialize this JVM.
Reuse Status Is the level of reusability of this JVM. It returns a value indicating the level of reusability for this JVM. These are the values:
- RESET
- The JVM profile for this JVM specified that can be reset (or in the case of a worker JVM, the JVM profile for the main JVM specified that the main and worker JVMs are resettable).
- REUSE
- The JVM profile for this JVM specified that it is continuous (or in the case of a worker JVM, the JVM profile for the main JVM specified that the main and worker JVMs are continuous).
- NOREUSE
- The JVM profile for this JVM specified that it is single-use.
System ID Indicates the four-character name that uniquely identifies an active z/OS operating system within a given CICSplex. The value format is an alphanumeric string, maximum four characters, and case-sensitive. z/OS System IDs are always in uppercase characters.
Task Is the task associated with the JVM. It returns a four byte packed decimal value giving the task to which the JVM is allocated, or zero if the JVM is not currently allocated to a task.
Task Number The character view of the task number associated with the JVM.
Token Returns the JVM token, a fullword binary value that identifies the JVM.