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Cisco Bug: CSCuw56015 - WAAS Akamai Connect - Akamai Cache can leak memory on or near max conns.

Last Modified

Feb 11, 2018

Products (1)

  • Cisco Wide Area Application Services (WAAS) Appliances

Known Affected Releases

5.3(3) 5.5(5a)

Description (partial)

Symptom:
During a high number of connections to the WAAS Akamai Cache you might see these messages in the ce-errorlog.current in the local1/errorlog:
09/04/2015 09:30:05.012CE(7324) NTCE (12079) (8561) In alarm_write_message, alarm_id = 3, entity = memory exhausted [app_alarm.c:297]
09/04/2015 09:30:05.012CE(7324) NTCE (12086) (8561) In alarm_raise, alarm_id = 3, entity = memory exhausted, rc = 392 [app_alarm.c:406]
09/04/2015 09:30:05.012CE(7324) NTCE (12129) (8561) sending alarm raise: 3(memory exhausted): HTTP object-cache using too much resources, bypassed [app_alarm.c:113]
09/04/2015 09:30:05.012CE(7324) NTCE (12300) (6992) New alarm generated: alarm_id: 3, entity: memory exhausted, message: HTTP object-cache using too much resources, bypassed client: traffic_server [alarm_server.cpp:335]
09/04/2015 09:30:05.012CE(7324) NTCE (12318) (6992) mod-ace: raising alarm memory exhausted(3): HTTP object-cache using too much resources, bypassed [mod_ace_alarms.cpp:78]
09/04/2015 09:30:05.562CE(7324) NTCE (562329) (8561) Above critical memory threshold. Adj Vm: 921892224/858993459 Adj RSS: 0/536870912 RSS 577171456/644245094 Total conns 123. [aka_memory.c:300]
09/04/2015 09:30:05.562CE(7324) NTCE (562344) (8561) Entering critical backoff mode. [aka_memory.c:219]
09/04/2015 09:30:05.562CE(7324) NTCE (562360) (8561) Setting throttle buf size limit to 8192. [aka_uds.c:1992]


Along with these alarms:
        Alarm ID                 Module/Submodule               Instance
   ---------------                        --------------------             ---------------
   1                               ce_resources_exhaust      http/object-cache

Conditions:
Akamai Cache enabled
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