09/2018 logstash has been replaced by graylog

https://www-acc.gsi.de/wiki/FESA/UsingGraylog

Using Logstash

Logstash is the 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 Logstash web-interface, log in with your ACC account on https://logstash.acc.gsi.de .

Please note that FESA binaries per default only log Warnings and Errors to Logstash. More details on that can be found on the FESA-Logging Wiki page.

Using Filters to find relevant log output

In the top-right corner, select the desired time-interval for your search.

Here an example query in order to display all logged errors of the FESA binary 'BumperDU_M':

program:BumperDU_M AND severity_label:error

Observe log messages from a booting front-end

The log output of a front-end that is restarted can be seen using the logstashtail command on another console window in the asl cluster (asl73x/asl74x). An example is given below.

x@asl74x:lnx>logstashtail logsource=vmla10

More Information

The logstash system is maintained by CSCOIN. See https://www-acc.gsi.de/wiki/IN/DiagnosticLogging for more information.