Graylog is the current logging system of choice @GSI. The whole software stack constituting the control system should use this logging system and its mechanisms.
In order to use the Graylogweb-interface, log in with your ACC account on https://graylog.acc.gsi.de
Please note that FESA binaries per default only log Warnings and Errors to Graylog. More details on that can be found on the FESA-Logging Wiki page.
Using Filters to find relevant log output
Select the stream 'All messages' on the left-hand side.
In the top-right corner, select the desired time-interval for your search.
Here an example query in order to display all logged level 3 errors of the FESA binary 'BumperDU_M':
program:BumperDU_M AND level:3
It is possible to save filters. These will be available in the drop-down list for all graylog users.
Observe log messages from a booting front-end
The log output of a front-end that is restarted can be seen using the graylog tail command on another console window in the asl cluster (asl73x/asl74x). An example is given below.
x@asl74x:lnx>graylog tail --source vmla10
The graylog system is maintained by ACO IN. See https://www-acc.gsi.de/wiki/IN/DiagnosticLogging
for more information.
- 21 Sep 2018