Debug

This documentation refers to the standalone (legacy) method of running APM Server. This method of running APM Server will be deprecated and removed in a future release. Please consider upgrading to the Elastic APM integration.

By default, APM Server sends all its output to syslog. When you run APM Server in the foreground, you can use the -e command line flag to redirect the output to standard error instead. For example:

apm-server -e

The default configuration file is apm-server.yml (the location of the file varies by platform). You can use a different configuration file by specifying the -c flag. For example:

apm-server -e -c myapm-serverconfig.yml

You can increase the verbosity of debug messages by enabling one or more debug selectors. For example, to view publisher-related messages, start APM Server with the publisher selector:

apm-server -e -d "publisher"

If you want all the debugging output (fair warning, it’s quite a lot), you can use *, like this:

apm-server -e -d "*"

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