Logstash Input from Elasticsearch Error

Question

I'm using Logstash 1.5.4 and Elasticsearch 1.7.1

The following is my Logstash configuration file:

input {
        elasticsearch {
                host => localhost
        }
}


output {
        elasticsearch {
                host => localhost
        }
        stdout {
                codec => rubydebug
        }
}

This works fine when I don't include the 'host' option for Elasticsearch input. However, once I add it, it gives me the following error and shuts Logstash off:

←[31mUnknown setting 'host' for elasticsearch {:level=>:error}←[0m
Error: Something is wrong with your configuration.
You may be interested in the '--configtest' flag which you can
use to validate logstash's configuration before you choose
to restart a running system.

Now I know that using Host is optional, but I need it. What if later on I wanted an Elasticsearch input from a host other that localhost?

Val · Accepted Answer · 2015-08-25 09:58:04Z

7

In the elasticsearch input, the correct parameter name to use is hosts not host.

input {
        elasticsearch {
                hosts => "localhost"
        }
}
...

So host is actually a documentation bug. The Ruby source for the elasticsearch input plugin also tells the same story.

answered Aug 25, 2015 at 9:58

Val

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4 Comments

hello_its_me Over a year ago

Thanks, that was it. Why isn't this mentioned in the doc's very first example! elastic.co/guide/en/logstash/current/…

Val Over a year ago

Documentation bug, I guess ;)

vvs14 Over a year ago

To note, in output it should be "host" only, not "hosts" for Logstash 1.5. elastic.co/guide/en/logstash/1.5/configuration.html

Val Over a year ago

In the elasticsearch input, it's hosts no matter which version. However, in the elasticsearch output, it was host before Logstash 2.0 and then the property name has been standardized to hosts.

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