Logstream: Summary request statistics

These statistics fields contain the logstream summary request data.

Summary statistics are not available online.

Table 1. Logstream: Summary request statistics
DFHSTUP name Description
Log Stream Name is the logstream name.

 

Write Requests is the total number of WRITEs of blocks of data to the logstream.

 

Bytes Written is the total number of bytes written to the logstream.

 

Buffer Appends is the total number of occasions on which a journal record was successfully appended to the current logstream buffer.

 

Waits Buffer Full is the total number of attempts made to append a journal record to the current logstream while the buffers were logically full.

 

Peak Force Wtrs is the peak number of tasks suspended while requesting a FLUSH of the logstream buffer currently in use.

 

Total Force Waits is the total number of tasks suspended while requesting a FLUSH of the logstream buffer currently in use.

 

Log Browse Starts is the total number of BROWSE operations started on the logstream. For non-system log logstreams, the report will show 'N/A' here, as you cannot browse these.

 

Log Browse Reads is the total number of READs of blocks of data from the logstream. For non-system log logstreams, the report will show 'N/A' here, as you cannot browse these.

 

Retry Errors is the total number of occasions on which MVS™ system logger retryable errors occurred when a block of data was being written to the logstream.