Reports until 13:59, Friday 17 July 2026
H1 CDS
jonathan.hanks@LIGO.ORG - posted 13:59, Friday 17 July 2026 - last comment - 17:05, Friday 17 July 2026(91101)
WP 13402 cleanup and daqd restarts

As part of WP 13402 we did some daqd restarts today.  These were to pull in changes to the EDC to reflect the reconfiguration of the DAQD system and the additional channels generated by the safety system update.

In addition on review of the system wiring, we switched the location of two fibers on h1daqdc1 to keep it consistent with the fiber layout on h1daqdc0.   The fibers where the link to the front end data stream, and the live data stream to the NDS2 systems.

This was the first time that we had done a channel list change since updating the daqd config.  This found an error in our puppet configuration.  Normally when the data concentrator machine starts up it grabs the channel list from the main copy, and stores a copy of the channel list that all the other daqd in its leg refer to.  This keeps a stable copy of the channel list that only updates on restarts.  During the puppet reconfiguration, this addition to the startup sequence got lost and was not applied on h1daqdc1.  It didn't show itself until we did the restarts with a new channel list, at this point the frame writers where disagreeing on the channel list.  This has been fixed in our puppet config now.

After some minor cleanups, a fiber re-arrangement, and several restarts and debugging the daqd system is running, the edc is connected to all its channels.

Comments related to this report
jonathan.hanks@LIGO.ORG - 17:05, Friday 17 July 2026 (91104)

With these changes done, I also did some updates to the daqstat ioc and medm screens.  Now it properly reports the daqd system is in good health which greens up the CDS overview a bit.