logstash cannot find log4j2.properties file

Question

I have been trying to setup a proof of concept elasticsearch/kibana/logstash environment, but it is not working at the moment.

The LOGSTASH_HOME is:

c:\_work\issues\log4j_socketappender\logstash-5.0.1\

In the console log of logstash I found the following line:

Could not find log4j2 configuration at path /_work/issues/log4j_socketappender/logstash-5.0.1/config/log4j2.properties. Using default config which logs to console

You can see logstash is trying to look for log4j2.properties in the right location but it does not contain the "c:" part

I tried adding the path to the config\jvm.options

 -Dlog4j.configurationFile=c:\_work\issues\log4j_socketappender\logstash-5.0.1\log4j2.properties

but it did not work.

Viorel Florian · Accepted Answer · 2016-12-02 09:06:59Z

4

Eventually I fixed it by adding the following line into bin\setup.bat

42.   SET JAVA_OPTS=%JAVA_OPTS% -Dlog4j.configurationFile=%LS_HOME%\config\log4j2.properties

answered Dec 2, 2016 at 9:06

Viorel Florian

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Remko Popma · Accepted Answer · 2016-11-19 23:16:35Z

1

Two things come to mind:

Try specifying the full path with -Dlog4j.configurationFile=c:\_work\issues\log4j_socketappender\logstash-5.0.1\log4j2.properties

Also, is the properties file using the new Log4j2 properties syntax? An old log4j 1.2-style properties file will not work. (Although I would expect a different error message in that case.)

answered Nov 19, 2016 at 23:16

Remko Popma

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Viorel Florian Over a year ago

That is what I tried, full path. Let me edit my question to avoid confusion. And the file was a log4j2 file.

Mickey Perlstein · Accepted Answer · 2017-04-09 14:45:35Z

0

as you can see here

create an Environment Variable in Windows LS_SETTINGS_DIR and set it to:

        /c:/logstash-5.0.1/config

(notice - leading forward slash and all slashes are unix style not Windows style backslashes)

or to invoke logstash with

      --path.settings=/c:/logstash-5.0.1/config/

(again note position and direction of slashes)

I hope that this helps someone avoid the Googling and testing I have just done!

answered Apr 9, 2017 at 14:45

Mickey Perlstein

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