# No route to self

**URL:** <https://discuss.elastic.co/t/no-route-to-self/19042>\
**Category:** Elasticsearch\
**Created:** [August 2, 2014, 1:51am UTC](https://discuss.elastic.co/t/no-route-to-self/19042 "2014-08-02T01:51:42Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![mhughes](https://avatars.discourse-cdn.com/v4/letter/m/85e7bf/32.png) [@mhughes](https://discuss.elastic.co/u/mhughes)\
**Post date:** [August 2, 2014, 1:51am UTC](https://discuss.elastic.co/t/no-route-to-self/19042/1 "2014-08-02T01:51:42Z")

</div>

Originally I was getting a bunch of "No Route to Host" errors and tracked  
it down to being out of file handles. I have fixed the file handle,  
problem, but I still keep getting "No route to host" errors; the odd thing  
is, the error says it can't connect to itself: These logs are _from_  
10.52.207.36. I turned up trace logging on transport, but I'm not seeing  
it.

[2014-08-02 02:45:15,044][TRACE][discovery.zen.ping.unicast] [Box IV] [2]  
failed to connect to [Box  
IV][Mx8kHzp6S1K-0\_FiNp36VA][elk3][inet[/10.52.207.36:9300]]  
org.elasticsearch.transport.ConnectTransportException: [Box  
IV][inet[/10.52.207.36:9300]] connect\_timeout[30s]  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:727)  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:656)  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:624)  
at  
org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:146)  
at  
org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$3.run(UnicastZenPing.java:289)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
at java.lang.Thread.run(Thread.java:744)  
Caused by: java.net.NoRouteToHostException: No route to host  
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
at  
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
at  
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
... 3 more  
[2014-08-02 02:45:15,045][WARN][transport.netty] [Box IV]  
exception caught on transport layer [[id: 0xd840123a]], closing connection  
java.net.NoRouteToHostException: No route to host  
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
at  
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
at  
org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
at  
org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
at  
org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
at  
org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
at java.lang.Thread.run(Thread.java:744)

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<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [August 2, 2014, 2:07am UTC](https://discuss.elastic.co/t/no-route-to-self/19042/2 "2014-08-02T02:07:08Z")

</div>

Can you put your config into a gist/pastebin?

ES isn't binding to loopback is it?

Regards,  
Mark Walkom

Infrastructure Engineer  
Campaign Monitor  
email: [markw@campaignmonitor.com](mailto:markw@campaignmonitor.com)  
web: [www.campaignmonitor.com](http://www.campaignmonitor.com)

On 2 August 2014 11:51, Matt Hughes [hughes.matt@gmail.com](mailto:hughes.matt@gmail.com) wrote:

> Originally I was getting a bunch of "No Route to Host" errors and tracked  
> it down to being out of file handles. I have fixed the file handle,  
> problem, but I still keep getting "No route to host" errors; the odd thing  
> is, the error says it can't connect to itself: These logs are _from_  
> 10.52.207.36. I turned up trace logging on transport, but I'm not seeing  
> it.
> 
> [2014-08-02 02:45:15,044][TRACE][discovery.zen.ping.unicast] [Box IV] [2]  
> failed to connect to [Box IV][Mx8kHzp6S1K-0\_FiNp36VA][elk3][inet[/  
> 10.52.207.36:9300]]  
> org.elasticsearch.transport.ConnectTransportException: [Box IV][inet[/  
> 10.52.207.36:9300]] connect\_timeout[30s]  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:727)  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:656)  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:624)  
> at  
> org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:146)  
> at  
> org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$3.run(UnicastZenPing.java:289)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> at java.lang.Thread.run(Thread.java:744)  
> Caused by: java.net.NoRouteToHostException: No route to host  
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> at  
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
> at  
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> ... 3 more  
> [2014-08-02 02:45:15,045][WARN][transport.netty] [Box IV]  
> exception caught on transport layer [[id: 0xd840123a]], closing connection  
> java.net.NoRouteToHostException: No route to host  
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> at  
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> at  
> org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
> at  
> org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> at  
> org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> at java.lang.Thread.run(Thread.java:744)
> 
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> .  
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<div class="post-metadata">

**Author:** ![mhughes](https://avatars.discourse-cdn.com/v4/letter/m/85e7bf/32.png) [@mhughes](https://discuss.elastic.co/u/mhughes)\
**Post date:** [August 2, 2014, 3:30am UTC](https://discuss.elastic.co/t/no-route-to-self/19042/3 "2014-08-02T03:30:06Z")

</div>

No, not loopback. I should caveat that this is running in a docker  
container.

The only values I specify in my config are:  
network.publish\_host: 10.52.207.36  
discovery.zen.ping.multicast.enabled: false  
discovery.zen.ping.unicast.hosts: 10.52.207.32,10.52.207.33,10.52.207.36

[2014-08-02 04:23:01,102][DEBUG][monitor.network] [elk3] net\_info  
host [elk3]  
eth0 display\_name [eth0]  
address [/fe80:0:0:0:4c54:85ff:fed5:2080%eth0] [/172.17.0.8]  
mtu [1500] multicast [false] ptp [false] loopback [false] up [true]  
virtual [false]  
lo display\_name [lo]  
address [/0:0:0:0:0:0:0:1%lo] [/127.0.0.1]  
mtu [16436] multicast [false] ptp [false] loopback [true] up [true]  
virtual [false]

[2014-08-02 04:23:01,968][DEBUG][transport.netty] [elk3] Bound to  
address [/172.17.0.8:9300]  
[2014-08-02 04:23:01,969][INFO][transport] [elk3]  
bound\_address {inet[/172.17.0.8:9300]}, publish\_address  
{inet[/10.52.207.36:9300]}

[2014-08-02 04:23:03,018][TRACE][discovery.zen.ping.unicast] [elk3] [1]  
failed to connect to  
[elk3][kpbZDtI9TxWL2cHahUQImQ][elk3][inet[/10.52.207.36:9300]]  
org.elasticsearch.transport.ConnectTransportException:  
[elk3][inet[/10.52.207.36:9300]] connect\_timeout[30s]  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:727)  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:656)  
at  
org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:624)  
at  
org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:146)  
at  
org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$3.run(UnicastZenPing.java:289)  
at  
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
at  
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
at java.lang.Thread.run(Thread.java:744)  
Caused by: java.net.NoRouteToHostException: No route to host  
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
at  
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)

On Friday, August 1, 2014 10:07:35 PM UTC-4, Mark Walkom wrote:

> Can you put your config into a gist/pastebin?
> 
> ES isn't binding to loopback is it?
> 
> Regards,  
> Mark Walkom
> 
> Infrastructure Engineer  
> Campaign Monitor  
> email: [ma...@campaignmonitor.com](mailto:ma...@campaignmonitor.com) \<javascript:\>  
> web: [www.campaignmonitor.com](http://www.campaignmonitor.com)
> 
> On 2 August 2014 11:51, Matt Hughes \<[hughe...@gmail.com](mailto:hughe...@gmail.com) \<javascript:\>\>  
> wrote:
> 
> > Originally I was getting a bunch of "No Route to Host" errors and tracked  
> > it down to being out of file handles. I have fixed the file handle,  
> > problem, but I still keep getting "No route to host" errors; the odd thing  
> > is, the error says it can't connect to itself: These logs are _from_  
> > 10.52.207.36. I turned up trace logging on transport, but I'm not seeing  
> > it.
> > 
> > [2014-08-02 02:45:15,044][TRACE][discovery.zen.ping.unicast] [Box IV] [2]  
> > failed to connect to [Box IV][Mx8kHzp6S1K-0\_FiNp36VA][elk3][inet[/  
> > 10.52.207.36:9300]]  
> > org.elasticsearch.transport.ConnectTransportException: [Box IV][inet[/  
> > 10.52.207.36:9300]] connect\_timeout[30s]  
> > at  
> > org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:727)  
> > at  
> > org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:656)  
> > at  
> > org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:624)  
> > at  
> > org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:146)  
> > at  
> > org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$3.run(UnicastZenPing.java:289)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> > at java.lang.Thread.run(Thread.java:744)  
> > Caused by: java.net.NoRouteToHostException: No route to host  
> > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> > at  
> > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
> > at  
> > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> > at  
> > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > ... 3 more  
> > [2014-08-02 02:45:15,045][WARN][transport.netty] [Box IV]  
> > exception caught on transport layer [[id: 0xd840123a]], closing connection  
> > java.net.NoRouteToHostException: No route to host  
> > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> > at  
> > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> > at  
> > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
> > at  
> > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> > at  
> > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> > at  
> > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> > at java.lang.Thread.run(Thread.java:744)
> > 
> > --  
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> > [https://groups.google.com/d/msgid/elasticsearch/1702c4f9-c19d-49f0-b5eb-f698f9e1e4d0%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/1702c4f9-c19d-49f0-b5eb-f698f9e1e4d0%40googlegroups.com?utm_medium=email&utm_source=footer)  
> > .  
> > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout).

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<div class="post-metadata">

**Author:** ![mhughes](https://avatars.discourse-cdn.com/v4/letter/m/85e7bf/32.png) [@mhughes](https://discuss.elastic.co/u/mhughes)\
**Post date:** [August 2, 2014, 3:36am UTC](https://discuss.elastic.co/t/no-route-to-self/19042/4 "2014-08-02T03:36:33Z")

</div>

Just a bit more info to show the port is bound on the machine.

[hostos ~]$ ss -aen6  
State Recv-Q Send-Q Local  
Address:Port Peer Address:Port  
LISTEN 0 128  
:::111 :::\* ino:13048 sk:ffff880435d477c0  
LISTEN 0 128  
:::9300 :::\* ino:90693 sk:ffff880258716800  
LISTEN 0 128  
:::9301 :::\* ino:90701 sk:ffff880437504080  
LISTEN 0 128  
:::9302 :::\* ino:90709 sk:ffff880435454840  
LISTEN 0 128  
:::22 :::\* ino:18069 sk:ffff880436aec080  
LISTEN 0 128  
:::9303 :::\* ino:90717 sk:ffff8804350ac840  
LISTEN 0 128  
::1:631 :::\* ino:17217  
sk:ffff880436aec800  
LISTEN 0 128  
:::9304 :::\* ino:90725 sk:ffff8804378de0c0  
LISTEN 0 128  
:::9305 :::\* ino:90669 sk:ffff88036aaf7080  
LISTEN 0 128  
:::9306 :::\* ino:90733 sk:ffff880435b92040  
LISTEN 0 50  
:::9000 :::\* ino:91504 sk:ffff88041454f840  
LISTEN 0 128  
:::443 :::\* ino:90661 sk:ffff880437504800  
LISTEN 0 128  
:::444 :::\*

On Friday, August 1, 2014 11:30:06 PM UTC-4, Matt Hughes wrote:

> No, not loopback. I should caveat that this is running in a docker  
> container.
> 
> The only values I specify in my config are:  
> network.publish\_host: 10.52.207.36  
> discovery.zen.ping.multicast.enabled: false  
> discovery.zen.ping.unicast.hosts: 10.52.207.32,10.52.207.33,10.52.207.36
> 
> [2014-08-02 04:23:01,102][DEBUG][monitor.network] [elk3] net\_info  
> host [elk3]  
> eth0 display\_name [eth0]  
> address [/fe80:0:0:0:4c54:85ff:fed5:2080%eth0] [/172.17.0.8]  
> mtu [1500] multicast [false] ptp [false] loopback [false] up  
> [true] virtual [false]  
> lo display\_name [lo]  
> address [/0:0:0:0:0:0:0:1%lo] [/127.0.0.1]  
> mtu [16436] multicast [false] ptp [false] loopback [true] up  
> [true] virtual [false]
> 
> [2014-08-02 04:23:01,968][DEBUG][transport.netty] [elk3] Bound  
> to address [/172.17.0.8:9300]  
> [2014-08-02 04:23:01,969][INFO][transport] [elk3]  
> bound\_address {inet[/172.17.0.8:9300]}, publish\_address {inet[/  
> 10.52.207.36:9300]}
> 
> [2014-08-02 04:23:03,018][TRACE][discovery.zen.ping.unicast] [elk3] [1]  
> failed to connect to [elk3][kpbZDtI9TxWL2cHahUQImQ][elk3][inet[/  
> 10.52.207.36:9300]]  
> org.elasticsearch.transport.ConnectTransportException: [elk3][inet[/  
> 10.52.207.36:9300]] connect\_timeout[30s]  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:727)  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:656)  
> at  
> org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:624)  
> at  
> org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:146)  
> at  
> org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$3.run(UnicastZenPing.java:289)  
> at  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> at  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> at java.lang.Thread.run(Thread.java:744)  
> Caused by: java.net.NoRouteToHostException: No route to host  
> at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> at  
> sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)
> 
> On Friday, August 1, 2014 10:07:35 PM UTC-4, Mark Walkom wrote:
> 
> > Can you put your config into a gist/pastebin?
> > 
> > ES isn't binding to loopback is it?
> > 
> > Regards,  
> > Mark Walkom
> > 
> > Infrastructure Engineer  
> > Campaign Monitor  
> > email: [ma...@campaignmonitor.com](mailto:ma...@campaignmonitor.com)  
> > web: [www.campaignmonitor.com](http://www.campaignmonitor.com)
> > 
> > On 2 August 2014 11:51, Matt Hughes [hughe...@gmail.com](mailto:hughe...@gmail.com) wrote:
> > 
> > > Originally I was getting a bunch of "No Route to Host" errors and  
> > > tracked it down to being out of file handles. I have fixed the file  
> > > handle, problem, but I still keep getting "No route to host" errors; the  
> > > odd thing is, the error says it can't connect to itself: These logs are  
> > > _from_ 10.52.207.36. I turned up trace logging on transport, but I'm not  
> > > seeing it.
> > > 
> > > [2014-08-02 02:45:15,044][TRACE][discovery.zen.ping.unicast] [Box IV]  
> > > [2] failed to connect to [Box IV][Mx8kHzp6S1K-0\_FiNp36VA][elk3][inet[/  
> > > 10.52.207.36:9300]]  
> > > org.elasticsearch.transport.ConnectTransportException: [Box IV][inet[/  
> > > 10.52.207.36:9300]] connect\_timeout[30s]  
> > > at  
> > > org.elasticsearch.transport.netty.NettyTransport.connectToChannels(NettyTransport.java:727)  
> > > at  
> > > org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:656)  
> > > at  
> > > org.elasticsearch.transport.netty.NettyTransport.connectToNode(NettyTransport.java:624)  
> > > at  
> > > org.elasticsearch.transport.TransportService.connectToNode(TransportService.java:146)  
> > > at  
> > > org.elasticsearch.discovery.zen.ping.unicast.UnicastZenPing$3.run(UnicastZenPing.java:289)  
> > > at  
> > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> > > at  
> > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> > > at java.lang.Thread.run(Thread.java:744)  
> > > Caused by: java.net.NoRouteToHostException: No route to host  
> > > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> > > at  
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
> > > at  
> > > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> > > at  
> > > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > > ... 3 more  
> > > [2014-08-02 02:45:15,045][WARN][transport.netty] [Box IV]  
> > > exception caught on transport layer [[id: 0xd840123a]], closing connection  
> > > java.net.NoRouteToHostException: No route to host  
> > > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)  
> > > at  
> > > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:712)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.connect(NioClientBoss.java:150)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.processSelectedKeys(NioClientBoss.java:105)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.process(NioClientBoss.java:79)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:318)  
> > > at  
> > > org.elasticsearch.common.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)  
> > > at  
> > > org.elasticsearch.common.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)  
> > > at  
> > > org.elasticsearch.common.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)  
> > > at  
> > > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)  
> > > at  
> > > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)  
> > > at java.lang.Thread.run(Thread.java:744)
> > > 
> > > --  
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> > > [https://groups.google.com/d/msgid/elasticsearch/1702c4f9-c19d-49f0-b5eb-f698f9e1e4d0%40googlegroups.com?utm\_medium=email&utm\_source=footer](https://groups.google.com/d/msgid/elasticsearch/1702c4f9-c19d-49f0-b5eb-f698f9e1e4d0%40googlegroups.com?utm_medium=email&utm_source=footer)  
> > > .  
> > > For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout).

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<div class="post-metadata">

**Author:** ![wzcwts521](https://avatars.discourse-cdn.com/v4/letter/w/c89c15/32.png) [@wzcwts521](https://discuss.elastic.co/u/wzcwts521)\
**Post date:** [February 27, 2015, 6:45pm UTC](https://discuss.elastic.co/t/no-route-to-self/19042/5 "2015-02-27T18:45:30Z")

</div>

Hi Matt

I am wondering if you have a solution of this issue?

---

<div class="post-metadata">

**Author:** ![mhughes](https://avatars.discourse-cdn.com/v4/letter/m/85e7bf/32.png) [@mhughes](https://discuss.elastic.co/u/mhughes)\
**Post date:** [March 4, 2015, 3:09am UTC](https://discuss.elastic.co/t/no-route-to-self/19042/6 "2015-03-04T03:09:37Z")

</div>

Assuming you are running docker it is most likely a firewall issue:

Packets that originate from a docker container are seen from the host as coming from the ‘docker0’ interface. By default this traffic is blocked.

> sudo iptables -L -v -n --line-numbers  
> Chain INPUT (policy ACCEPT 0 packets, 0 bytes)  
> num pkts bytes target prot opt in out source destination  
> 1 3633 281K ACCEPT all -- \* \* 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED  
> 2 0 0 ACCEPT icmp -- \* \* 0.0.0.0/0 0.0.0.0/0  
> 3 1 60 ACCEPT all -- docker0 \* 0.0.0.0/0 0.0.0.0/0  
> 4 13 968 ACCEPT all -- lo \* 0.0.0.0/0 0.0.0.0/0  
> 5 4 256 ACCEPT tcp -- \* \* 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22  
> 6 1187 81739 REJECT all -- \* \* 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited  
> 7 0 0 LOGGING all -- \* \* 0.0.0.0/0 0.0.0.0/0  
> To fix this issue, I added line #3. Note that everything that comes from ‘lo’ is wide open. I just duplicated that rule for ‘docker0’.

> sudo iptables -I INPUT 3 -i docker0 -j ACCEPT && sudo service iptables save  
> The line ‘3’ may be different depending on any other rules you may have added.

On March 2, 2015 at 6:37:29 AM, wzcwts521 ([wzcwts521@gmail.com](mailto:wzcwts521@gmail.com)) wrote:

Hi Matt

I am wondering if you have a solution of this issue?

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**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, 12:28am UTC](https://discuss.elastic.co/t/no-route-to-self/19042/7 "2017-07-06T00:28:42Z")

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