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Web API v1 – GetAlarmHistory

Solved1.48K views10th July 2023alarms web services WebAPI
1
Bruno Nogueira [SLC]50 3rd September 2020 2 Comments

It was noted that running the GetAlarmHistory call on a Root Alarm ID that is no longer active (cleared) doesn’t provide the user with the Alarm History for that alarm.

Moreover, it was noted that when the user initiates the API session and during that session the alarm is cleared, if the call is made, the alarm will still be retrieved. However, on the next call the alarm won’t be retrieved any longer.

The question here is that this is indeed a SW issue or if there’s an alternative call to retrieve alarm history.

Thank you.

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 10th July 2023
Wim Bruynooghe [SLC] [DevOps Advocate] commented 21st September 2020

The GetAlarmHistory method should indeed return the alarm records for the specified Root ID, as long as those records still exist in the database (see maintenance settings). Which DataMiner version are you using? Cassandra or MySQL database?

Bruno Nogueira [SLC] commented 22nd September 2020

Running HF_9.6.0.0(CU5)_20191125-172040 on a MySQL Cluster

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Davy Degrande [SLC] [DevOps Advocate]1.43K Posted 15th September 2020 3 Comments

If no time window is given it will fetch the current active alarms, if you want to retrieve the alarms that are already cleared you need to pass along a time window (start and stop time)

Marieke Goethals [SLC] [DevOps Catalyst] Selected answer as best 10th July 2023
Bruno Nogueira [SLC] commented 15th September 2020

There’s no input field on the request to specify start/end times.

Davy Degrande [SLC] [DevOps Advocate] commented 15th September 2020

From the codebase in RC I see the follow methods take in a time window:
GetHistoryAlarmsForElement
GetHistoryAlarmsForView
GetHistoryAlarmsForParameter
GetHistoryAlarmsForService
These got added in RN14582

Bruno Nogueira [SLC] commented 22nd September 2020

For the API call that is being discussed (GetAlarmHistory) there’s indeed no start/end time input fields.

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