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DMA disconnects each time after DMS sync

Solved1.13K views21st November 2022cluster DMS DMS Sync
5
Matthias Declerck [SLC] [DevOps Advocate]2.75K 18th January 2022 1 Comment

Hi,

Skyline squad Unit-X has a cluster of 2 DataMiner Agents for a few years.
Recently, our cluster acts suspicious. Namely, one of the agents is disconnected (agent 2).
However, it is connected for a brief moment when it syncs to the other agent (agent 1).
After the sync, it is disconnected again. Sometimes, agent 2 gets state Refused when connected to agent 1. When connected to agent 2, all is normal according to the agent states.

- I have checked XML files: DMS, maintancesettings, logging, ..
nothing weird or invalid found.
- I restarted agents few times. Didn't help either.

Could someone elaborate what is going on or contact me to assist me further?
IMO, The gathered information is too sensitive to post here, so DM me for link.

Thanks in advance

Matthias Declerck [SLC] [DevOps Advocate] Selected answer as best 21st November 2022
Bruno Nogueira [SLC] commented 18th January 2022

Did you check the IIS bindings? Enabling the HTTP binding can do the trick for you momentarily (I believe this is due to some structural changes in the IT management side, relying solely on HTTPS).
Let me know if that helps.

1 Answer

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Marlies Vandenberghe [SLC] [DevOps Member]2.98K Posted 21st November 2022 0 Comments

This can happen when a SLNet call fails, we have seen some issues related to this in the early 10.2 releases however they should all be fixed in later versions

In case something similar happens again, you can check the SLNet.txt log files from both sides to see which call/KPI is causing the disconnect (e.g. callback timeout) and take a logcollector package with SLNet dump to look into the issue in more details

Matthias Declerck [SLC] [DevOps Advocate] Selected answer as best 21st November 2022
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