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

Last Modified: May 29, 2024

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

Known Affected Versions:
13.1.1, 13.1.1.2, 13.1.1.3, 13.1.1.4, 14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4

Fixed In:
15.1.0, 14.1.2.8, 13.1.1.5

Opened: Mar 15, 2019

Severity: 3-Major

Symptoms

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.

Impact

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

Conditions

System rotates log files.

Workaround

None.

Fix Information

Log file preserves text file type after log rotation.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips