Bug ID 761273: wr_urldbd creates sparse log files by writing from the previous position after logrotate.

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP PEM(all modules)

Known Affected Versions:
13.1.1,,,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,, 15.0.0, 15.0.1,,,,

Fixed In:

Opened: Mar 15, 2019

Severity: 3-Major


After log rotation, the wr_urldbd daemon continues to write at the pre-rotate offset into the file, so the next message is written at offset N, making the file sparse, with all characters prior to position being read as nulls.


Some automated systems might not be able to read log file.


System rotates log files.



Fix Information

Log file preserves text file type after log rotation.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips