Elasticsearch not working

[jstoeffler]

So after installing the ElasticPress plugin, and specifying the URL, it tells me : There is a problem with connecting to your Elasticsearch host.

I tried to call Elasticsearch on the server with:

curl -XGET 'http://localhost:9200/_count?pretty' -d '
{
    "query": {
        "match_all": {}
    }
}
'

Which returns curl: (7) Failed to connect to localhost port 9200: Connection refused

I looked into the Elasticsearch logs and I found the stack trace above, which is the same as the one in this issue, which seems to be caused by a missing network.host flag. Is there something to do on my side?

java.lang.IllegalArgumentException: No up-and-running site-local (private) addresses found, got [name:lo (lo), name:eth0 (eth0)] at org.elasticsearch.common.network.NetworkUtils.getSiteLocalAddresses(NetworkUtils.java:187) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.network.NetworkService.resolveInternal(NetworkService.java:246) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.network.NetworkService.resolveInetAddresses(NetworkService.java:220) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.network.NetworkService.resolveBindHostAddresses(NetworkService.java:130) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.transport.TcpTransport.bindServer(TcpTransport.java:729) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.transport.netty4.Netty4Transport.doStart(Netty4Transport.java:174) ~[?:?] at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:69) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.transport.TransportService.doStart(TransportService.java:209) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:69) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.node.Node.start(Node.java:694) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:278) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:351) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) [elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) [elasticsearch-5.6.3.jar:5.6.3] [2017-11-06T23:02:46,603][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler] [www] uncaught exception in thread [main] org.elasticsearch.bootstrap.StartupException: java.lang.IllegalArgumentException: No up-and-running site-local (private) addresses found, got [name:lo (lo), name:eth0 (eth0)] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:136) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:123) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:70) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:134) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.6.3.jar:5.6.3] Caused by: java.lang.IllegalArgumentException: No up-and-running site-local (private) addresses found, got [name:lo (lo), name:eth0 (eth0)] at org.elasticsearch.common.network.NetworkUtils.getSiteLocalAddresses(NetworkUtils.java:187) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.network.NetworkService.resolveInternal(NetworkService.java:246) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.network.NetworkService.resolveInetAddresses(NetworkService.java:220) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.network.NetworkService.resolveBindHostAddresses(NetworkService.java:130) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.transport.TcpTransport.bindServer(TcpTransport.java:729) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.transport.netty4.Netty4Transport.doStart(Netty4Transport.java:174) ~[?:?] at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:69) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.transport.TransportService.doStart(TransportService.java:209) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:69) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.node.Node.start(Node.java:694) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:278) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:351) ~[elasticsearch-5.6.3.jar:5.6.3] at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:132) ~[elasticsearch-5.6.3.jar:5.6.3] ... 6 more

[jstoeffler]

So for those who run in the same issue, I modified /etc/elasticsearch/elasticsearch.yml and changed the settings to : network.host: ["localhost"]

Closing the issue as I don't need help, but it would be great if it would work by default.

[jstoeffler]

To avoid touching the server config directly, I added: elasticsearch__network_host: '[ "localhost" ]' to my inventory/group_vars/all/vars.yml file.