Offline Monitoring Incoming Data

Saving Online Monitoring Data

The procedure for writing the data out is given in, e.g., Raid-to-Silo Transfer Strategy.

Once the DAQ writes out the data to the raid disk, cron jobs will copy the file to tape, and within ~20 min., we will have access to the file on tape at /mss/halld/$RUN_PERIOD/rawdata/RunXXXXXX.

All online monitoring plugins will be run as data is taken. They will be accessible within the counting house via RootSpy, and for each run and file, a ROOT file containing the histograms will be saved within a subdirectory for each run.

For immediate access to these files, the raid disk files may be accessed directly from the counting house, or the tape files will be available within ~20 min. of the file being written out.

Offline: Setup for a new run period

1) Download the "monitoring" scripts directory from svn. For the gxprojN accounts, use the directory ~/monitoring/:

cd ~/
svn co https://halldsvn.jlab.org/repos/trunk/scripts/monitoring/
cd monitoring/incoming

1. Edit the job config file, ~/monitoring/incoming/input.config, which is used to register jobs in hdswif. A typical config file will look this:

PROJECT                       gluex
TRACK                         reconstruction
OS                            centos65
NCORES                        24        # 24 = Entire node
DISK                          40
RAM                           32        # 32 GB per node
TIMELIMIT                      8
JOBNAMEBASE                   offmon
RUNPERIOD                     2016-02
VERSION                       01
OUTPUT_TOPDIR                 /cache/halld/offline_monitoring/RunPeriod-[RUNPERIOD]/ver[VERSION] # Example of other variables included in variable
SCRIPTFILE                    /home/gxproj1/monitoring/incoming/script.sh                        # Must specify full path
ENVFILE                       /home/gxproj1/env_monitoring_incoming                              # Must specify full path

1. Create a new swif workflow:

~/monitoring/hdswif/hdswif.py create [workflow] -c ~/monitoring/incoming/input.config

• If not already running, the cron job can be launched by running:

crontab cron_incoming