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Cisco Bug: CSCvv33944 - DME Hangs with WaitOnLimit type 1 causing discovery issues

Last Modified

Sep 28, 2020

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

4.0(4d)A

Description (partial)

Symptom:
IOM/Chassis/Servers not discovering, 
FSM re-try exhausted and FSM failed messages observed for blades/Chassis and IOM. The below are observed in sam_dme logs that shows the issue:

[INFO][0xee3ffb40][Aug  6 16:45:15.820][proc_app:waitOnLimit]   WaitOnLimit QueueSize=76729, More=308973, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:45:15.820][proc_app:waitOnLimit]   WaitOnLimit QueueSize=76729, More=308973, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:45:55.930][proc_app:waitOnLimit]   WaitOnLimit QueueSize=308973, More=288, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:46:36.581][proc_app:waitOnLimit]   WaitOnLimit QueueSize=16552, More=308928, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:46:36.581][proc_app:waitOnLimit]   WaitOnLimit QueueSize=16552, More=308928, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:47:16.683][proc_app:waitOnLimit]   WaitOnLimit QueueSize=308928, More=288, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:48:01.143][proc_app:waitOnLimit]   WaitOnLimit QueueSize=16447, More=308928, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:48:01.143][proc_app:waitOnLimit]   WaitOnLimit QueueSize=16447, More=308928, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:48:41.243][proc_app:waitOnLimit]   WaitOnLimit QueueSize=308928, More=288, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:49:44.335][proc_app:waitOnLimit]   WaitOnLimit QueueSize=96185, More=308894, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:49:44.335][proc_app:waitOnLimit]   WaitOnLimit QueueSize=96185, More=308894, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:50:04.426][proc_app:waitOnLimit]   WaitOnLimit QueueSize=308894, More=288, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:51:01.615][proc_app:waitOnLimit]   WaitOnLimit QueueSize=131941, More=156819, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:51:01.615][proc_app:waitOnLimit]   WaitOnLimit QueueSize=131941, More=156819, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:52:16.783][proc_app:waitOnLimit]   WaitOnLimit QueueSize=14808, More=308915, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:52:16.783][proc_app:waitOnLimit]   WaitOnLimit QueueSize=14808, More=308915, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:52:56.884][proc_app:waitOnLimit]   WaitOnLimit QueueSize=308915, More=288, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:53:57.057][proc_app:waitOnLimit]   WaitOnLimit QueueSize=10589, More=308894, Max=262144, QueueType=1
|   [INFO][0xee3ffb40][Aug  6 16:53:57.058][proc_app:waitOnLimit]   WaitOnLimit QueueSize=10589, More=308894, Max=262144, QueueType=1
|   [INFO][0xeecffb40][Aug  6 16:45:55.928][net:write]              write failed on fd=71, peerservice=1591, peername=unknown, peerport=1530, Error=1, error=0

Conditions:
UCSM 4.0(4d)
UCS 6454
UCS 5108 Chassis
UCS-IOM-2304
Blades UCSB-B200-M4
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