Fields in the Logstream System Logs Report
The Logstream System Logs Report is produced using the EXEC CICS INQUIRE STREAMNAME and EXEC CICS EXTRACT STATISTICS STREAMNAME commands. The statistics data is mapped by the DFHLGSDS DSECT.
For more information about logstreams, see CICS logging and journaling.
| Field Heading | Description |
|---|---|
| Logstream Name | The name of the logstream. Source field: EXEC CICS INQUIRE STREAMNAME() |
| Logstream Status | The current status of the logstream. Source field: EXEC CICS INQUIRE STREAMNAME() STATUS() |
| DASD Only | Indicates the type of logstream.
If set to YES, the logstream is of type DASDONLY. If set to NO, the
log stream is of type coupling facility (CF). Source field: LGSDONLY |
| Retention Period (days) | The logstream retention period (in
days) that the data must be kept before it can be physically deleted
by the MVS Logger. Source field: LGSRETPD |
| Coupling Facility Structure Name | The coupling facility (CF) structure
name for the logstream. The structure name is only applicable to coupling
facility type logstreams. Source field: LGSSTRUC |
| Auto Delete | The log data auto delete indicator.
If set to YES the MVS Logger
automatically deletes the data as it matures beyond the retention
period, irrespective of any logstream delete calls. If set to NO,
the data is only deleted when a logstream delete call is issued and
the data has matured beyond the retention period. Source field: LGSAUTOD |
| Logstream Writes | The number of write (IXGWRITE) requests
issued to this logstream. Source field: LGSWRITES |
| Maximum Block Length | The maximum block size allowed by
the MVS Logger for the logstream. Source field: LGSMAXBL |
| Logstream Writes per second | The number of logstream writes per
second for this logstream. Source field: (LGSWRITES / ELAPSED-SECONDS) |
| Average Bytes per Logstream Write | The average number of bytes written
to this logstream per write request. Source field: (LGSBYTES / LGSWRITES) |
| Logstream Deletes (Tail Trims) | The number of delete (IXGDELET) requests
issued to this logstream. Source field: LGSDELETES |
| Logstream Query Requests | The number of query requests issued
for this logstream. Source field: LGSQUERIES |
| Logstream Browse Starts | The number of browse start requests
issued for this logstream. Source field: LGSBRWSTRT |
| Logstream Browse Reads | The number of browse read requests
issued for this logstream. Source field: LGSBRWREAD |
| Logstream Buffer Appends | The number of occasions on which
a journal record was successfully appended to the current log stream
buffer. Source field: LGSBUFAPP |
| Logstream Buffer Full Waits | The number of times buffer full has
occurred for this logstream. Source field: LGSBUFWAIT |
| Logstream Force Waits | The total number of tasks suspending
while requesting a flush of the logstream buffer currently in use.
Source field: LGSTFCWAIT |
| Logstream Current Force Waiters | The current number of force waiters
for this logstream. Source field: |
| Logstream Retry Errors | The number of occasions on which MVS system logger retryable errors
occurred when a block of data was being written to the log stream. Source field: LGSRTYERRS |
| Logstream Peak Force Waiters | The peak number of force waiters
for this logstream. Source field: LGSPKFWTRS |