# Got error when starting a elastic server cluster **URL:** \ **Category:** Elasticsearch\ **Created:** [November 11, 2018, 4:27pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209 "2018-11-11T16:27:33Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 11, 2018, 4:27pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/1 "2018-11-11T16:27:34Z")
I got error like below in both servers ``` [2018-11-11T12:38:21,155][WARN][o.e.b.JNANatives] Unable to lock JVM Memory: error=12, reason=Cannot allocate memory [2018-11-11T12:38:21,157][WARN][o.e.b.JNANatives] This can result in part of the JVM being swapped out. [2018-11-11T12:38:21,158][WARN][o.e.b.JNANatives] Increase RLIMIT_MEMLOCK, soft limit: 16777216, hard limit: 16777216 [2018-11-11T12:38:21,158][WARN][o.e.b.JNANatives] These can be adjusted by modifying /etc/security/limits.conf, for example: # allow user 'elasticsearch' mlockall elasticsearch soft memlock unlimited elasticsearch hard memlock unlimited [2018-11-11T12:38:21,158][WARN][o.e.b.JNANatives] If you are logged in interactively, you will have to re-login for the new limits to take effect. [2018-11-11T12:38:21,304][INFO][o.e.n.Node] [linux-1] initializing ... [2018-11-11T12:38:21,401][INFO][o.e.e.NodeEnvironment] [linux-1] using [1] data paths, mounts [[/ (/dev/sda1)]], net usable_space [24.6gb], net total_space [28.9gb], types [ext4] [2018-11-11T12:38:21,401][INFO][o.e.e.NodeEnvironment] [linux-1] heap size [1.9gb], compressed ordinary object pointers [true] [2018-11-11T12:38:21,402][INFO][o.e.n.Node] [linux-1] node name [linux-1], node ID [h03oGLGESzqeHmeNJLl0LQ] [2018-11-11T12:38:21,402][INFO][o.e.n.Node] [linux-1] version[6.4.3], pid[11401], build[oss/deb/fe40335/2018-10-30T23:17:19.084789Z], OS[Linux/4.15.0-1030-azure/amd64], JVM[Oracle Corporation/OpenJDK 64-Bit Server VM/1.8.0_181/25.181-b13] [2018-11-11T12:38:21,403][INFO][o.e.n.Node] [linux-1] JVM arguments [-Xms2g, -Xmx2g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/etc/elasticsearch, -Des.distribution.flavor=oss, -Des.distribution.type=deb] [2018-11-11T12:38:22,242][INFO][o.e.p.PluginsService] [linux-1] loaded module [aggs-matrix-stats] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [analysis-common] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [lang-expression] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [rank-eval] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [reindex] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [repository-url] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [transport-netty4] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] loaded module [tribe] [2018-11-11T12:38:22,243][INFO][o.e.p.PluginsService] [linux-1] no plugins loaded [2018-11-11T12:38:25,636][INFO][o.e.d.DiscoveryModule] [linux-1] using discovery type [zen] [2018-11-11T12:38:26,235][INFO][o.e.n.Node] [linux-1] initialized [2018-11-11T12:38:26,235][INFO][o.e.n.Node] [linux-1] starting ... [2018-11-11T12:38:26,561][ERROR][o.e.b.Bootstrap] [linux-1] Exception org.elasticsearch.transport.BindTransportException: Failed to bind to [9093] at org.elasticsearch.transport.TcpTransport.bindToPort(TcpTransport.java:821) ~[elasticsearch-6.4.3.jar:6.4.3] at org.elasticsearch.transport.TcpTransport.bindServer(TcpTransport.java:786) ~[elasticsearch-6.4.3.jar:6.4.3] at org.elasticsearch.transport.netty4.Netty4Transport.doStart(Netty4Transport.java:134) ~[?:?] at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:66) Caused by: java.net.BindException: Cannot assign requested address at sun.nio.ch.Net.bind0(Native Method) ~[?:?] at sun.nio.ch.Net.bind(Net.java:433) ~[?:?] at java.lang.Thread.run(Thread.java:748) ~[?:1.8.0_181] [2018-11-11T12:38:26,581][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [linux-1] uncaught exception in thread [main] org.elasticsearch.bootstrap.StartupException: BindTransportException[Failed to bind to [9093]]; nested: BindException[Cannot assign requested address]; at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:140) ~[elasticsearch-6.4.3.jar:6.4.3] at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:86) ~[elasticsearch-6.4.3.jar:6.4.3] Caused by: org.elasticsearch.transport.BindTransportException: Failed to bind to [9093] at org.elasticsearch.transport.TcpTransport.bindToPort(TcpTransport.java:821) ~[elasticsearch-6.4.3.jar:6.4.3] at org.elasticsearch.transport.TcpTransport.bindServer(TcpTransport.java:786) ~[elasticsearch-6.4.3.jar:6.4.3] ... 6 more Caused by: java.net.BindException: Cannot assign requested address at sun.nio.ch.Net.bind0(Native Method) ~[?:?] at sun.nio.ch.Net.bind(Net.java:433) ~[?:?] at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[?:?] at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403) ~[?:?] at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:463) ~[?:?] at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) ~[?:?] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181] [2018-11-11T12:38:27,284][INFO][o.e.n.Node] [linux-1] stopping ... [2018-11-11T12:38:27,288][INFO][o.e.n.Node] [linux-1] stopped [2018-11-11T12:38:27,288][INFO][o.e.n.Node] [linux-1] closing ... [2018-11-11T12:38:27,321][INFO][o.e.n.Node] [linux-1] closed ``` My config file for servers as below Linux-1 server ``` cluster.name: linux-elk node.name: linux-1 node.data: true node.ingest: true node.master: false node.max_local_storage_nodes: 2 indices.query.bool.max_clause_count: 10000 path.data: /var/lib/elasticsearch path.logs: /var/log/elasticsearch bootstrap.memory_lock: true network.host: 24.95.245.313 http.port: 9092 transport.tcp.port: 9093 discovery.zen.ping.unicast.hosts: - 178.51.190.47 discovery.zen.minimum_master_nodes: 1 ``` Linux-2 server ``` cluster.name: linux-elk node.name: linux-2 node.data: true node.ingest: false node.master: true node.max_local_storage_nodes: 2 indices.query.bool.max_clause_count: 10000 path.data: /var/lib/elasticsearch path.logs: /var/log/elasticsearch bootstrap.memory_lock: true network.host: 178.51.190.47 http.port: 9092 transport.tcp.port: 9093 discovery.zen.ping.unicast.hosts: - 24.95.245.313 discovery.zen.minimum_master_nodes: 1 ``` plese help ? what i need to do now ? ---
**Author:** ![xavierfacq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavierfacq/32/8744_2.png) [@xavierfacq](https://discuss.elastic.co/u/xavierfacq)\ **Post date:** [November 11, 2018, 7:59pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/2 "2018-11-11T19:59:47Z")
Hi, Verify you do not have special chars in your network.host line. And are you certain this line is valid : > [@varun1992](#): > > discovery.zen.ping.unicast.hosts: > - 178.51.190.47 bye Xavier ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 12, 2018, 3:38am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/3 "2018-11-12T03:38:44Z")
it is sever ipv4 address. what do you mean by special chars? How should I verify it? ---
**Author:** ![xavierfacq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavierfacq/32/8744_2.png) [@xavierfacq](https://discuss.elastic.co/u/xavierfacq)\ **Post date:** [November 12, 2018, 7:58am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/4 "2018-11-12T07:58:59Z")
The unicast.hosts line seems strange for me. In my configuration I have all on the same line: ``` network.host: ["10.xxx.xxx.xxx", "172.yyy.yyy.yyy"] ``` _Specials chars_ can be control chars you can't see and look like a space. It's just an idea. ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [November 12, 2018, 8:04am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/5 "2018-11-12T08:04:31Z")
As you have specified a non-default transport port, you need to include this in your unicast list. ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 12, 2018, 11:28am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/6 "2018-11-12T11:28:38Z")
I tried it and got same error again. But if i change network.host to 0.0.0.0 in both nodes and start nodes, both working well. That time i don;t have this error ? ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 16, 2018, 1:09pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/7 "2018-11-16T13:09:42Z")
please help??? anybody ---
**Author:** ![xavierfacq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavierfacq/32/8744_2.png) [@xavierfacq](https://discuss.elastic.co/u/xavierfacq)\ **Post date:** [November 16, 2018, 8:53pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/8 "2018-11-16T20:53:12Z")
hi, can you past your elasticsearch.yml, the last log error and the result of ifconfig ? thx ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 17, 2018, 1:03pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/9 "2018-11-17T13:03:40Z")
what is ifconfig? ---
**Author:** ![xavierfacq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavierfacq/32/8744_2.png) [@xavierfacq](https://discuss.elastic.co/u/xavierfacq)\ **Post date:** [November 18, 2018, 11:45am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/10 "2018-11-18T11:45:55Z")
hi, ifconfig is a linux command to retrieve all IPs of the server. In order to see if it's matching with your configuration. bye, Xavier ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [November 18, 2018, 11:47am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/11 "2018-11-18T11:47:18Z")
Can you please show your updated config? ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 19, 2018, 1:55pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/12 "2018-11-19T13:55:21Z")
Linux-1 server ``` cluster.name: linux-elk node.name: linux-1 node.data: true node.ingest: true node.master: false node.max_local_storage_nodes: 2 indices.query.bool.max_clause_count: 10000 path.data: /var/lib/elasticsearch path.logs: /var/log/elasticsearch bootstrap.memory_lock: true network.host: 24.95.245.313 http.port: 9092 transport.tcp.port: 9093 discovery.zen.ping.unicast.hosts: ["178.51.190.47:9093"] discovery.zen.minimum_master_nodes: 1 ``` Linux-2 server ``` cluster.name: linux-elk node.name: linux-2 node.data: true node.ingest: false node.master: true node.max_local_storage_nodes: 2 indices.query.bool.max_clause_count: 10000 path.data: /var/lib/elasticsearch path.logs: /var/log/elasticsearch bootstrap.memory_lock: true network.host: 178.51.190.47 http.port: 9092 transport.tcp.port: 9093 discovery.zen.ping.unicast.hosts: ["24.95.245.313:9093"] discovery.zen.minimum_master_nodes: 1 ``` This is my updated config file of both nodes. still giving same error ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [November 19, 2018, 1:58pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/13 "2018-11-19T13:58:53Z")
Log into each host and verify that you can talent successfully to post 9093 on the other host. The config looks Ok as far as I can see, so it is possible it is a network or firewall issue. If these IP addressed are public, also make sure that you have secured your cluster properly so it is not openly accessible from the internet. ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 19, 2018, 2:19pm UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/14 "2018-11-19T14:19:14Z")
when i change `network.host to 0.0.0.0` in both nodes all working fine and cluster started with green status. But when i give original ip it giving error. why is that ? ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [November 26, 2018, 7:01am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/15 "2018-11-26T07:01:50Z")
any help ? ---
**Author:** ![xavierfacq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/xavierfacq/32/8744_2.png) [@xavierfacq](https://discuss.elastic.co/u/xavierfacq)\ **Post date:** [December 13, 2018, 9:28am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/16 "2018-12-13T09:28:33Z")
Hi did you solve your problem ? ---
**Author:** ![varun1992](https://avatars.discourse-cdn.com/v4/letter/v/3da27b/32.png) [@varun1992](https://discuss.elastic.co/u/varun1992)\ **Post date:** [December 17, 2018, 10:09am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/17 "2018-12-17T10:09:14Z")
not yet ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [January 14, 2019, 10:09am UTC](https://discuss.elastic.co/t/got-error-when-starting-a-elastic-server-cluster/156209/18 "2019-01-14T10:09:25Z")
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