Page History

...

Ami does not work: the DAQ is fine after a restart, but I see no updates/detectors in ami

1) Make sure that all dss nodes are selected. If you needed to take a node out due to problems, you need to edit the <hutch>.cnf file. You can use "serverStat <ip>" to get the name for the node that causes a problem and then edit the list of dss_nodes to exclude this node. If the problematic node is the last one, you might see that you have to reselect the Bld upon a restart. This means that the DAQ will make you allocate twice (the first time it'll fail with a complaint about a Bld change).

2) A second cause for this problem can be that the calib-dir is not mounted on the mon-nodes anymore. ami will look for the pedestal files here, so it will take a long time until int times out and will start, but w/o the detectors. You can check if that is the case by looking at an ami log file (e.g. for ami0-0) or ssh to a mon-node in use and check if you can see the pedestals files in /reg/d/psdm/<hutch>/<expname>/calib/<dettype>/....If the calib directory is not visible from the mon-nodes, a temporary solution is to use a local version of the calib folder. To do so, copy the calib directory into ~<xxxopr>/tmp_calibdir/<hutch>/<exp>/. This can usually be done from a psana node as <xxxopr>. Then in the <hutch>.cnf file, edit the ami-opts:

...