Bug ID 560114: Monpd is being affected by an I/O issue which makes some of its threads freeze

Last Modified: Aug 19, 2026

Affected Product(s):
BIG-IP AFM, APM, ASM, AVR, PEM, PSM, SWG, vCMP(all modules)

Known Affected Versions:
11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4, 12.1.0, 12.1.0 hf1, 12.1.0 hf2, 12.1.1, 12.1.1 hf1, 12.1.1 hf2, 12.1.2, 12.1.2 hf1, 12.1.2 hf2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Fixed In:
13.0.0, 11.6.2

Opened: Nov 30, 2015

Severity: 3-Major

Symptoms

When Monpd is restarted, it starts printing non-stop error message to logs. Analytics statistics may be lost, and new data cannot be loaded. The ltm log contains this error signature - err stat_bridge_thread[8278]: monpd`ERR`date`11285` [stat_bridge_thread::validateCorrectNumberOfPartitions, ] Too many partitions (44) defined for DB table AVR_STAT_DISK_T

Impact

AVR statistics are lost. Monpd thread cannot load new data, and it prints non-stop error messages to the logs.

Conditions

A system I/O issue (maybe caused by /var/log being full).

Workaround

Run the following: find /var/avr/loader/ -mindepth 1 -name "*" -print0 | xargs -0 rm touch /var/avr/init_avrdb bigstart restart monpd

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips