What does RTE for SLDMS – DATAMINER_NOTIFICATION_QUEUE Thread mean?

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Hi Dojo,

I noticed a couple agents in a DMS had the following half open RTE:

  • 2026-09-23 00:45:02         15104|HALFOPEN RTE: - (1) Not signaled 1 (since 2026-09-23 00:00:01): SLDMS - DATAMINER_NOTIFICATION_QUEUE Thread [pid 13712 - thread 14468] in Process: SLDMS for Thread: DATAMINER_NOTIFICATION_QUEUE Thread notificationID created: 4085

They were cleared by themselves a few minutes later and most of the relevant log files are overwritten, so I couldn't further investigate.

Can anyone help me understand this RTE better and what it can mean?

Catarina Grilo [SLC] [DevOps Enabler] Answered question

1 Answer

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Hi Caio,

An SLDMS NotificationThread RTE means that SLDMS could not process a notification, often sent by SLNet for operations such as file synchronization, within the expected time. This can occur when processing takes longer than expected, 7 minutes and 30 seconds for a half open RTEs or 15 minutes for a full open RTE, or when the thread becomes deadlocked.
As a result, notifications may accumulate, potentially causing increased memory usage and degraded DataMiner performance.

Ref:SLDMS.exe - RTEs NotificationThread RTE | DataMiner Docs

Kind regards,

Caio Moreti Koga [SLC] [DevOps Advocate] Posted new comment
Caio Moreti Koga [SLC] [DevOps Advocate] commented

Hi Catarina, thanks for your answer, it's definitely helpful.

I have seen NotificationThread RTE before but had never seen the "DATAMINER_NOTIFICATION_QUEUE Thread", which is why I was curious.