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Cisco Bug: CSCuo09351 - Too many session manager in warn state

Last Modified

Feb 05, 2017

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

14.0

Description (partial)

Symptom:
Customer is seeing lot of sessmgrs are going into WARN state.We noticed that all the sessmgrs in the WARN state are handling same number of calls as other sessmgrs but are using up much more memory .

[local]CGSN# sho task resources | grep -v good

                   task   cputime        memory     files      sessions
 cpu facility      inst used allc   used  alloc used allc  used  allc S status
----------------------- --------- ------------- --------- ------------- ------
 1/0 sessmgr         32  38% 100%  1.21G  1.19G   56  500  4485 21120 I   warn
 1/0 sessmgr         44  28% 100%  1.19G  1.19G   57  500  4373 21120 I   warn
 1/0 sessmgr        103  19% 100%  1.20G  1.19G   56  500  4464 21120 I   warn
 2/0 sessmgr         33  28% 100%  1.20G  1.19G   53  500  4297 21120 I   warn
 2/0 sessmgr         45  19% 100%  1.19G  1.19G   55  500  4361 21120 I   warn
 3/0 sessmgr        136  38% 100%  1.18G  1.19G   57  500  4461 21120 I   warn
 4/0 sessmgr         35  28% 100%  1.20G  1.19G   54  500  4355 21120 I   warn
 6/0 sessmgr         31  24% 100%  1.19G  1.19G   55  500  4494 21120 I   warn
 6/0 sessmgr         54  38% 100%  1.22G  1.19G   57  500  4497 21120 I   warn
 6/0 sessmgr         64  37% 100%  1.22G  1.19G   57  500  4521 21120 I   warn
11/0 sessmgr         19  22% 100%  1.21G  1.19G   56  500  4409 21120 I   warn
11/0 sessmgr         38  34% 100%  1.20G  1.19G   56  500  4313 21120 I   warn
12/0 sessmgr         26  36% 100%  1.20G  1.19G   57  500  4294 21120 I   warn
12/0 sessmgr         68  26% 100%  1.19G  1.19G   55  500  4392 21120 I   warn

Conditions:
As per Customer observation, tasks jumping to "warn" state started the day after it was upgraded to Rel-14.
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