Bug ID 912149: ASM sync failure with Cgc::Channel error 'Failed to send a message, error:15638476'

Last Modified: Jul 30, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP ASM(all modules)

Known Affected Versions:
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, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 16.0.0, 16.0.0.1, 16.0.1, 16.0.1.1, 16.0.1.2, 16.1.0

Opened: May 27, 2020
Severity: 2-Critical

Symptoms

The system exhibits various symptoms related to sync and control plane, and reports errors similar to the following: /var/log/: -- (asm_config_server.pl,F5::Cgc::Channel::send): Failed to send a message, error:15638476. ts_debug.log: -- |ZEROMQ|May 21 23:27:31.840|24813|25914|25914|epoll.cpp:0060|~epoll_t()|(zmq_assert) Assertion failed: load.get () == 0

Impact

-- Config-sync does not work, resulting in a different configuration among the devices in a sync group. -- Security log profile changes are not propagated to other devices. -- Portions of the GUI hang, e.g.: Security module tab, and 'security' menu under virtual server. -- Policies with learning enabled do not generate learning suggestions.

Conditions

-- Two devices in a sync-failover/sync-only device group. -- Other conditions required to reproduce this issue are under investigation. Note: The occurrences of the Cgc::Channel message in the /var/log/ and /var/log/ts/asm_config_server logs are the most reliable indicator of this issue.

Workaround

Restart asm_config_server on the units in the device group. # pkill -f asm_config_server

Fix Information

None

Behavior Change