Elasticsearch APM agent not pushing to server

[hHelen (Helen)]

I have a server running on a remote computer and have installed the APM agent on another computer with Flask installed. But for some reason I keep getting this error on the client:

Connection to APM Server timed out (url:http://134.446.25.12:8200'/v1/transactions, timeout: None seconds)
Failed to submit message: ''

Here is the sample flask code that I'm trying to run:

from flask import Flask
from elasticapm.contrib.flask import ElasticAPM
from flask import abort

app = Flask(name)
app.config['ELASTIC_APM'] = {
'APP_NAME': 'mytestamp',
'SERVICE_NAME': 'myapp',
'SERVER_URL': 'http://134.446.25.12:8200'
}
apm = ElasticAPM(app)

@app.route('/ok', methods=['GET', 'POST'])
def ok():
apm.capture_message('ok message')
return 'ok'

The server has no security in place that is stopping the connection so not sure what else to do.

Any help is appreciated.

Helen

[beniwohli (Benjamin Wohlwend @ APM)]

Hi Helen

one possible cause is that the apm-server on your other machine isn't bound to listen to external connections. By default, the apm-server only binds to localhost. You can change that by using the -E apm-server.host option:

./apm-server -e -E apm-server.host=0.0.0.0:8200

Note however that this will expose your apm-server to any other machine that can reach that IP address, so we suggest to use https and a secret token to secure your apm-server. See https://www.elastic.co/guide/en/apm/server/current/security.html for more information.

[hHelen (Helen)]

@beniwohli Thanks, you are correct. Changing the connection to listen to external connections did the trick.

Nice one