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[[Sphenix-tracking-l] ] Question for tracking/offline groups about dropped events

From: "Hughes, Charles [PHYSA]" <chughes2 AT IASTATE.EDU>
To: "sphenix-tracking-l AT lists.bnl.gov" <sphenix-tracking-l AT lists.bnl.gov>
Cc: Jamie Nagle <Jamie.nagle AT colorado.edu>, Martin Purschke <purschke AT bnl.gov>, "Pinkenburg, Christopher" <pinkenbu AT bnl.gov>
Subject: [[Sphenix-tracking-l] ] Question for tracking/offline groups about dropped events
Date: Sat, 24 Aug 2024 20:18:45 +0000

Hello tracking group. I have a question on behalf of TPC data-taking and @James Nagle

We have this issue with bbox instabilities, where it looks like the data rate is being alternately throttled and relaxed (but the disk usage is not necessarily high).

We would like to know if there is data being dropped (e.g. missing BCOs for affected TPC sectors). This is important because we don't know and we are now taking the precaution of stopping and re-starting run, which usually fixes the issue but leads to time spent not taking data.

The example below is Run 51988, affected EBDCs are 3, 9, 15, 21 (all tied to same bbox) - I cannot recall how that translates to the offline analysis sector naming convention. I have also posted about this in the tracking-software mattermost

[[Sphenix-tracking-l] ] Question for tracking/offline groups about dropped events, Hughes, Charles [PHYSA], 08/24/2024