# ClassNotFoundException: org.elasticsearch.discovery.ec2.Ec2DiscoveryModule **URL:** \ **Category:** Elasticsearch\ **Created:** [February 19, 2015, 12:15am UTC](https://discuss.elastic.co/t/classnotfoundexception-org-elasticsearch-discovery-ec2-ec2discoverymodule/22254 "2015-02-19T00:15:42Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![dtuck9](https://avatars.discourse-cdn.com/v4/letter/d/54ee81/32.png) [@dtuck9](https://discuss.elastic.co/u/dtuck9)\ **Post date:** [February 19, 2015, 12:15am UTC](https://discuss.elastic.co/t/classnotfoundexception-org-elasticsearch-discovery-ec2-ec2discoverymodule/22254/1 "2015-02-19T00:15:42Z")
New to ES - Trying to use the elasticsearch-cloud-aws plugin, but when starting my java client node, I'm getting ClassNotFoundException on org.elasticsearch.discovery.ec2.Ec2DiscoveryModule. Do I need to install this plugin on java client nodes, and if so, how does one do that? Or, rather, is there a maven dependency that can be referenced to load these required classes? For reference, the elasticsearch.yaml is: plugin.mandatory: cloud-aws cloud: aws: access\_key: \*\*\*\*\*\* secret\_key: \*\*\*\*\* discovery: type: ec2 and my java client code is: Settings settings = ImmutableSettings.settingsBuilder() .put("node.name", nodeName) .put("cloud.aws.access\_key", awsAccessKey) .put("cloud.aws.secret\_key", awsSecretKey) .put("cloud.node.auto\_attributes", true) .put("discovery.type", "ec2") .build(); this.node = nodeBuilder() .clusterName(clusterName) .settings(settings) .client(true) .node(); this.client = node.client(); -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [February 19, 2015, 6:38am UTC](https://discuss.elastic.co/t/classnotfoundexception-org-elasticsearch-discovery-ec2-ec2discoverymodule/22254/2 "2015-02-19T06:38:58Z")
Yes. This should be added to the doc: [[Doc] add maven documentation when using with a Java Node Client · Issue #176 · elastic/elasticsearch-cloud-aws · GitHub](https://github.com/elasticsearch/elasticsearch-cloud-aws/issues/176) You need to add this dependency if you are using a NodeClient: org.elasticsearch elasticsearch-cloud-aws 2.4.1 HTH David > Le 19 févr. 2015 à 01:15, Diana Tuck [dtuck9@gmail.com](mailto:dtuck9@gmail.com) a écrit : > > New to ES - Trying to use the elasticsearch-cloud-aws plugin, but when starting my java client node, I'm getting ClassNotFoundException on org.elasticsearch.discovery.ec2.Ec2DiscoveryModule. Do I need to install this plugin on java client nodes, and if so, how does one do that? Or, rather, is there a maven dependency that can be referenced to load these required classes? > > For reference, the elasticsearch.yaml is: > > plugin.mandatory: cloud-aws > cloud: > aws: > access\_key: \*\*\*\*\*\* > secret\_key: \*\*\*\*\* > discovery: > type: ec2 > > and my java client code is: > > ## Settings settings = ImmutableSettings.settingsBuilder() .put("node.name", nodeName) .put("cloud.aws.access\_key", awsAccessKey) .put("cloud.aws.secret\_key", awsSecretKey) .put("cloud.node.auto\_attributes", true) .put("discovery.type", "ec2") .build(); this.node = nodeBuilder() .clusterName(clusterName) .settings(settings) .client(true) .node(); this.client = node.client(); > > You received this message because you are subscribed to the Google Groups "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). > To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com). > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/E6E5D8C5-3A9A-46A1-9531-95514F4708BB%40pilato.fr](https://groups.google.com/d/msgid/elasticsearch/E6E5D8C5-3A9A-46A1-9531-95514F4708BB%40pilato.fr). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![dtuck9](https://avatars.discourse-cdn.com/v4/letter/d/54ee81/32.png) [@dtuck9](https://discuss.elastic.co/u/dtuck9)\ **Post date:** [February 19, 2015, 6:06pm UTC](https://discuss.elastic.co/t/classnotfoundexception-org-elasticsearch-discovery-ec2-ec2discoverymodule/22254/3 "2015-02-19T18:06:52Z")
Thanks, David. I eventually ended up finding the pom on the github repo. Thanks for adding the documentation!! On Wednesday, February 18, 2015 at 10:39:19 PM UTC-8, David Pilato wrote: > Yes. > > This should be added to the doc: > [[Doc] add maven documentation when using with a Java Node Client · Issue #176 · elastic/elasticsearch-cloud-aws · GitHub](https://github.com/elasticsearch/elasticsearch-cloud-aws/issues/176) > > You need to add this dependency if you are using a NodeClient: > > org.elasticsearch elasticsearch-cloud-aws\ artifactId\> > 2.4.1 > HTH > David > > Le 19 févr. 2015 à 01:15, Diana Tuck \<[dtu...@gmail.com](mailto:dtu...@gmail.com) \\> a > écrit : > > New to ES - Trying to use the elasticsearch-cloud-aws plugin, but when > starting my java client node, I'm getting ClassNotFoundException > on org.elasticsearch.discovery.ec2.Ec2DiscoveryModule. Do I need to > install this plugin on java client nodes, and if so, how does one do that? > Or, rather, is there a maven dependency that can be referenced to load > these required classes? > > For reference, the elasticsearch.yaml is: > > plugin.mandatory: cloud-aws > cloud: > aws: > access\_key: \*\*\*\*\*\* > secret\_key: \*\*\*\*\* > discovery: > type: ec2 > > and my java client code is: > > Settings settings = ImmutableSettings.settingsBuilder() > .put("node.name", nodeName) > .put("cloud.aws.access\_key", awsAccessKey) > .put("cloud.aws.secret\_key", awsSecretKey) > .put("cloud.node.auto\_attributes", true) > .put("discovery.type", "ec2") > .build(); > this.node = nodeBuilder() > .clusterName(clusterName) > .settings(settings) > .client(true) > .node(); > this.client = node.client(); > > -- > You received this message because you are subscribed to the Google Groups > "elasticsearch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [elasticsearc...@googlegroups.com](mailto:elasticsearc...@googlegroups.com) \. > To view this discussion on the web visit > [https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com) > [https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/925353fd-b717-417d-986f-570c634e39c1%40googlegroups.com?utm_medium=email&utm_source=footer) > . > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/3fc41382-3521-416d-8052-50f342462816%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/3fc41382-3521-416d-8052-50f342462816%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 12:31am UTC](https://discuss.elastic.co/t/classnotfoundexception-org-elasticsearch-discovery-ec2-ec2discoverymodule/22254/4 "2017-07-06T00:31:29Z")