This section contains the following statistics:
These statistics fields contain the resource data collected by the log manager domain. For more information on logging and journaling, see Logging and journaling: performance considerations, and Interpreting journalname and log stream statistics. Note that for the system logs DFHLOG and DFHSHUNT, CICS® does not use the journal for writing purposes, but writes directly to the log stream. So for these journals, 'N/A' appears in the report under the headings 'Write requests', 'Bytes written' and 'Buffer flushes'.
These statistics can be accessed online using the EXEC CICS COLLECT STATISTICS JOURNALNAME command, and are mapped by the DFHLGRDS DSECT. For programming information about the EXEC CICS COLLECT STATISTICS command, see the CICS System Programming Reference manual.
DFHSTUP name | Field name | Description |
---|---|---|
Journal Name | LGRJNLNAME | is the journal name.
Reset characteristic: not reset
|
Journal Type | LGRJTYPE | is the type of journal: MVS™, SMF, or dummy.
Reset characteristic: not reset
|
Log Stream Name | LGRSTREAM | is the log stream name associated with the journal. Only
journals defined as type MVS have associated log streams. The same log stream can
be associated with more than one journal.
Reset characteristic: not reset
|
Write Requests | LGRWRITES | is the total number of times that a journal record was
written to the journal.
Reset characteristic: reset to zero
|
Bytes Written | LGRBYTES | is the total number of bytes written to the journal.
Reset characteristic: reset to zero
|
Buffer Flushes | LGRBUFLSH | is the total number of times that a journal block was
written to the log stream (in the case of a journal defined as type MVS), or to the System
Management Facility (in the case of a journal defined as type SMF).
Journal blocks are flushed in the following circumstances:
Reset characteristic: reset to zero
|
Summary statistics are not available online.
These statistics fields contain the journalname summary resource data. For the system logs DFHLOG and DFHSHUNT, CICS does not use the journal for writing purposes, but writes directly to the log stream. So for these journals, 'N/A' appears in the summary report under the headings 'Write requests', 'Bytes written' and 'Buffer flushes'.
DFHSTUP name | Description
|
---|---|
Journal Name | is the journal name.
|
Journal Type | is the journal type:
|
Log Stream Name | is the name of the log stream associated with the journal.
|
Write Requests | is the total number of times that a journal record was
written to the journal.
|
Bytes Written | is the total number of bytes written.
|
Buffer Flushes | is the total number of times that a journal block was
written to the log stream (in the case of a journal defined as type MVS), or to the System
Management Facility (in the case of a journal defined as type SMF).
|