# Failed to send join request to master **URL:** \ **Category:** Elasticsearch\ **Created:** [March 1, 2014, 5:45pm UTC](https://discuss.elastic.co/t/failed-to-send-join-request-to-master/16087 "2014-03-01T17:45:41Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Tian\_Chu](https://avatars.discourse-cdn.com/v4/letter/t/a88e57/32.png) [@Tian\_Chu](https://discuss.elastic.co/u/Tian_Chu)\ **Post date:** [March 1, 2014, 5:45pm UTC](https://discuss.elastic.co/t/failed-to-send-join-request-to-master/16087/1 "2014-03-01T17:45:41Z")
Hey guys, I'm currently working with an ES (0.90.10) cluster of six nodes, hosted on EC2. It worked fine for most of time, but sometimes nodes are missing from cluster. I restarted the node missing from cluster, and got following log messages, which suggest the node couldn't connect to the master. I tried to telnet the master on port 9300, 9200, and 9500, all worked fine. Any idea what's going on? Or how can I better troubleshoot this problem? Thanks in advance!!! [2014-03-01 17:37:04,377][DEBUG][discovery.ec2] [prod-insights-es-3] using dynamic discovery nodes [[#cloud-i-4e0e9f60-0][inet[/10.238.151.xxx:9300]], [#cloud-i-846afaaa-0][inet[/10.4.159.xxx:9300]], [#cloud-i-f2fa69dc-0][inet[/10.225.21.xxx:9300]], [#cloud-i-db841ff5-0][inet[/10.138.38.xxx:9300]], [#cloud-i-76b82358-0][inet[/10.141.169.xxx:9300]], [#cloud-i-2eb12a00-0][inet[/10.225.31.xxx:9300]]] [2014-03-01 17:37:04,390][DEBUG][discovery.ec2] [prod-insights-es-3] filtered ping responses: (filter\_client[true], filter\_data[false]) --\> target [[prod-insights-es-4][VxPFIFgTRQKjKE6UdV8r5w][inet[/10.141.169.xxx:9300]]], master [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] --\> target [[prod-insights-es-0][MtJ8gh1ASwyXduy9IDzZXg][inet[/10.238.151.xxx:9300]]], master [null] --\> target [[prod-insights-es-2][lQu3NC\_QTuybRYb6JV0saA][inet[/10.225.21.xxx:9300]]], master [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] --\> target [[prod-insights-es-1][RkEb00GxTY-4pk481I0hNg][inet[/10.4.159.xxx:9300]]], master [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] --\> target [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]], master [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] [2014-03-01 17:37:19,391][INFO][discovery.ec2] [prod-insights-es-3] failed to send join request to master [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]], reason [org.elasticsearch.ElasticSearchTimeoutException: Timeout waiting for task.] -- 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/d36c6de8-0634-4978-a283-1868b8211f33%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/d36c6de8-0634-4978-a283-1868b8211f33%40googlegroups.com). For more options, visit [https://groups.google.com/groups/opt\_out](https://groups.google.com/groups/opt_out). ---
**Author:** ![Gerardo\_Santovena](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/gerardo_santovena/32/1555_2.png) [@Gerardo\_Santovena](https://discuss.elastic.co/u/Gerardo_Santovena)\ **Post date:** [May 21, 2014, 4:54am UTC](https://discuss.elastic.co/t/failed-to-send-join-request-to-master/16087/2 "2014-05-21T04:54:44Z")
Try adding network.public\_host: to your elasticsearch.yml file. It worked for me. I'm using CloudFormation, so finding out what IP address has is not difficult. On Saturday, March 1, 2014 11:45:41 AM UTC-6, Tian Chu wrote: > Hey guys, > > I'm currently working with an ES (0.90.10) cluster of six nodes, hosted on > EC2. It worked fine for most of time, but sometimes nodes are missing from > cluster. I restarted the node missing from cluster, and got following log > messages, which suggest the node couldn't connect to the master. I tried to > telnet the master on port 9300, 9200, and 9500, all worked fine. Any idea > what's going on? Or how can I better troubleshoot this problem? > > Thanks in advance!!! > > [2014-03-01 17:37:04,377][DEBUG][discovery.ec2] > [prod-insights-es-3] using dynamic discovery nodes > [[#cloud-i-4e0e9f60-0][inet[/10.238.151.xxx:9300]], > [#cloud-i-846afaaa-0][inet[/10.4.159.xxx:9300]], > [#cloud-i-f2fa69dc-0][inet[/10.225.21.xxx:9300]], > [#cloud-i-db841ff5-0][inet[/10.138.38.xxx:9300]], > [#cloud-i-76b82358-0][inet[/10.141.169.xxx:9300]], > [#cloud-i-2eb12a00-0][inet[/10.225.31.xxx:9300]]] > [2014-03-01 17:37:04,390][DEBUG][discovery.ec2] > [prod-insights-es-3] filtered ping responses: (filter\_client[true], > filter\_data[false]) > --\> target > [[prod-insights-es-4][VxPFIFgTRQKjKE6UdV8r5w][inet[/10.141.169.xxx:9300]]], > master > [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] > --\> target > [[prod-insights-es-0][MtJ8gh1ASwyXduy9IDzZXg][inet[/10.238.151.xxx:9300]]], > master [null] > --\> target > [[prod-insights-es-2][lQu3NC\_QTuybRYb6JV0saA][inet[/10.225.21.xxx:9300]]], > master > [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] > --\> target > [[prod-insights-es-1][RkEb00GxTY-4pk481I0hNg][inet[/10.4.159.xxx:9300]]], > master > [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] > --\> target > [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]], > master > [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]] > [2014-03-01 17:37:19,391][INFO][discovery.ec2] > [prod-insights-es-3] failed to send join request to master > [[prod-insights-es-5][1L19uMCpRgy6lTLU7l30fg][inet[/10.225.31.xxx:9300]]], > reason [org.elasticsearch.ElasticSearchTimeoutException: Timeout waiting > for task.] -- 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/cf1c5d51-a254-4d23-b316-252fb64750c5%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/cf1c5d51-a254-4d23-b316-252fb64750c5%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, 1:28am UTC](https://discuss.elastic.co/t/failed-to-send-join-request-to-master/16087/3 "2017-07-06T01:28:00Z")