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AdV-DAQ (Data collection)
masserot - 11:25 Monday 20 January 2025 (65990) Print this report
DAQ : missing data period since 2025-01-01

The attached plots show the number of channels related to each DAQ stages (FbmFE, FbmMain, FbmAlp and FbmSt ) according the ITF_LOCK state  since the beginning of 2025 .

There is 5 events of missing channels since the beginning of 2025

Most of the time, it seems that

Up to now , the reasons of these events remain unknown

The detail of each event  is avalaible in  the related attached file

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Comments to this report:
kraja, cortese - 10:27 Tuesday 21 January 2025 (66019) Print this report

On the underlying infrastructure, we have had 3 correlated storage disconnections, that match the two events on 10th of January ( 2025-01-10-01h10m-UTC and 2025-01-10-04h44m-UTC ) and the first one on 15th ( 2025-01-15-04h15m-UTC ). 
The other two have no corresponding events on the underlying infrastructure. 
The problem is the same one that happened the last few times, due to the overload on the fileservers, in addition to the increased latency due to the new version of fault tolerance management on the underlying infrastructure. 
The vendor has been informed, but seems to be impossible to improve, at the moment, on the infrastructure side, since all the necessary fine-tunings have been implemented. 

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