Can't Connect to Elasticsearch (through Curl)

Question

I've recently installed Elasticsearch and everything was working well for the first few days, but somehow today it stopped working

When I start the service, it claims to be fine...

sudo /etc/init.d/elasticsearch start
* Starting Elasticsearch Server
...done.

But then I get
curl -GET http://127.0.0.1:9200
curl: (7) couldn't connect to host

Looking at the elasticsearch logs:

[WARN ][bootstrap                ] jvm uses the client vm, make sure to run `java` with the server vm for best performance by adding `-server` to the command line

Looks like there is a warning regarding the Java VM; could that be the problem? What else should I try/look at?

Answer 1

curl -GET http://127.0.0.1:9200 is the wrong command.

Try curl -XGET http://127.0.0.1:9200. It should return the short info about your running local node and status 200. If that doesn't work then something else must be wrong.