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Cisco Bug: CSCut63675 - lda_server coredump caused by wdsysmon

Last Modified

Sep 21, 2018

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases

5.3.1.LC

Description (partial)

Symptom:
Process lda_server may be terminated by wdsysmon due to cirtical limit of more than 950 file handles used.
System messages will indicate warnings/errors with wording like the following:

wdsysmon[384]: %HA-HA_WD-4-FD_MAJ_LIM : Process lda_server, pid 53281 is using 900 file descriptors out of a max of 1000. Major limit (90%) crossed.
 
wdsysmon[384]: %HA-HA_WD-3-FD_CRIT_LIM : Process lda_server, pid 53281 is using 950 file descriptors out of a max of 1000. Critical limit (95%) crossed.

The show processes file command will show a high number of connection to sysdb_svr_local:

<CmdBold>show process<noCmdBold> <CmdArg><job_id><noCmdArg> <CmdBold>details location<noCmdBold> <CmdArg><R/S/I><noCmdArg>

<job_id> is job id for lda_server on the failing node.
<R/S/I> is the Rack/Slot/Instance location of the failing node.

Conditions:
This defect may occurs under very rare condition, such as:

a) 900+ changes of hw-mdoule breakout configuration.

b) Defects that will cause interface HW to fail persistently, which in turn will cause the system to retry HW initialization a large number of times.
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