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lukewaite / logstash-input-cloudwatch-logs

Input plugin for Logstash to stream events from CloudWatch Logs
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Error && "Initialize: name or service not known" #30

Closed flypenguin closed 7 years ago

flypenguin commented 7 years ago

First, thanks for the plugin. Second, I just tried it with logstash 5.4.2 running in a container (the official one from elastic.co, with the plugin installed as described in the blog post), and ran into the following issue:

Jul 07 15:19:32 ip-10-10-15-13 docker[27906]: 13:19:32.212 [[main]<cloudwatch_logs] ERROR logstash.pipeline - A plugin had an unrecoverable error. Will restart this plugin.
Jul 07 15:19:32 ip-10-10-15-13 docker[27906]:   Plugin: <LogStash::Inputs::CloudWatch_Logs type=>"elasticbeanstalk", region=>"eu-central-1", log_group=>["/aws/elasticbeanstalk/"], log_group_prefix=>true, interval=>30, id=>"c667b4b34c50753165191cd8ff63292b06b5a5c7-2", enable_metric=>true, codec=><LogStash::Codecs::Plain id=>"plain_2acad102-83e1-4aa2-accf-6ae5ffad62f9", enable_metric=>true, charset=>"UTF-8">, start_position=>"beginning">
Jul 07 15:19:32 ip-10-10-15-13 docker[27906]:   Error: initialize: name or service not known

I have no clue what this is, but I guess it's not working. :)

lukewaite commented 7 years ago

The error you're getting is a DNS error saying it can't find the CloudWatch Logs region endpoint for eu-central-1.

Everything should just play nice together, as that region setting is passed through when constructing the CloudWatch Logs client.

Is it possible that the container you're running in is experiencing networking issues? Are you able to hit the endpoint via another method? eg curl -I logs.eu-central-1.amazonaws.com

flypenguin commented 7 years ago

actually I can't reproduce the issue any more. closing.