Error on hub.log : “queue alarm_enrichment already has a subscriber�

Document ID : KB000008641
Last Modified Date : 14/02/2018
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Issue:

Alarms are no more displayed in IM and/or Admin Console, apparently after a hub upgrade.

In hub.log there are the below lines:

"hub: Subscribe error: queue alarm_enrichment already has a subscriber"

 

"hub: Subscribe error: replacing current subscriber not permitted, denying request from 'alarm' at 'xx.xxx.xx.xx'"

Environment:
Any UIM 8.x
Cause:

Reviewing hub probe UI -> Status tab - found that the alarm_Enrichment queue had a probe profile as ID, for example "logmon"

It happened that the profile enabled in logmon probe subscribed before the alarm_enrichment subscribes to alarm queue and hence the error above in the log.

Resolution:

There are two possible ways to have this fixed (in this specific example the logmon):

1.

- open logmon UI
- disable the profile
- save the changes
- deactivate / activate Alarm_Enrichment probe 

2. 

continue to have the profile enabled but change the probe restart order, basically have the logmon probe started after    alarm_enrichment.

 

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