# ES 7.5.0 not starting when remote cluster is down

**URL:** <https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691>\
**Category:** Elasticsearch\
**Tags:** ccs-cross-cluster-search\
**Created:** [February 3, 2020, 8:45pm UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691 "2020-02-03T20:45:11Z")\
**Posts on this page:** 11\
**Page:** 1

<div class="post-metadata">

**Author:** ![JPedroM](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@JPedroM](https://discuss.elastic.co/u/JPedroM)\
**Post date:** [February 3, 2020, 8:45pm UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/1 "2020-02-03T20:45:11Z")

</div>

Hey,

Was able to setup a remote cluster in one of my ES instances. After this instance was up and the connection to remote established I shut down the remote instance. The connection has been lost but after the start of the second instance the connection resumed when the first remote search was preformed.

My question is for what reason can't I start an ES instance with a remote cluster configured if that remote cluster is down. Shouldn't the behaviour be similar to the above?

The erro I got is:

```
failed to update seed list for cluster: cluster_one
Caused by: Connection refused: /192.168.
```

---

<div class="post-metadata">

**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [February 4, 2020, 1:28am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/2 "2020-02-04T01:28:22Z")

</div>

It's hard to help from this tiny fragment of a single log message. Can you share it in full, including the stack trace, along with any other messages that surround it?

---

<div class="post-metadata">

**Author:** ![JPedroM](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@JPedroM](https://discuss.elastic.co/u/JPedroM)\
**Post date:** [February 4, 2020, 9:22am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/3 "2020-02-04T09:22:35Z")

</div>

My point here is not really the error. The error is a connection refused because the remote cluster is down. I can provide the full log trace but the real question is if the cluster shouldn't start despite the remote cluster being down.

---

<div class="post-metadata">

**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [February 4, 2020, 9:46am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/4 "2020-02-04T09:46:36Z")

</div>

I too am surprised that a cluster won't start if a remote cluster is down, and I would like to see more detail so that I can understand the mechanism that is causing your cluster not to start. It may be a bug, or it may be that something else is also wrong, or it may be that I am misunderstanding things. The full error and surrounding context will help distinguish these cases.

---

<div class="post-metadata">

**Author:** ![JPedroM](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@JPedroM](https://discuss.elastic.co/u/JPedroM)\
**Post date:** [February 4, 2020, 10:08am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/5 "2020-02-04T10:08:33Z")

</div>

Ok David, Thanks for your fast reply.  
I doubt it is a configuration problem because when the remote cluster is up I don't have any problem starting my cluster.

My remote cluster configuration:

```
cluster:
    remote:
        cluster_one:
            seeds: 192.168.108.172:9300
            transport.ping_schedule: 30s

```

The log when I run Elastic with the remote down:

EDIT: Where you see remote-cluster-name you should actually read current-node-name. Sorry for the edit mistake.

```
[2020-02-04T10:02:38,441][WARN][o.e.t.RemoteClusterConnection] [remote-cluster-name] fetching nodes from external cluster [cluster_one] failed
org.elasticsearch.transport.ConnectTransportException: [][192.168.108.172:9300] connect_exception
	at org.elasticsearch.transport.TcpTransport$ChannelsConnectedListener.onFailure(TcpTransport.java:989) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener.lambda$toBiConsumer$3(ActionListener.java:162) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.concurrent.CompletableContext.lambda$addListener$0(CompletableContext.java:42) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2159) ~[?:?]
	at org.elasticsearch.common.concurrent.CompletableContext.completeExceptionally(CompletableContext.java:57) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.netty4.Netty4TcpChannel.lambda$addListener$0(Netty4TcpChannel.java:68) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:337) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:600) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:554) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[?:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[?:?]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[?:?]
	at java.lang.Thread.run(Thread.java:830) [?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /192.168.108.172:9300
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:579) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:820) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[?:?]
	... 7 more
[2020-02-04T10:02:38,460][WARN][o.e.t.RemoteClusterService] [remote-cluster-name] failed to update seed list for cluster: cluster_one
org.elasticsearch.transport.ConnectTransportException: [][192.168.108.172:9300] connect_exception
	at org.elasticsearch.transport.TcpTransport$ChannelsConnectedListener.onFailure(TcpTransport.java:989) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener.lambda$toBiConsumer$3(ActionListener.java:162) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.concurrent.CompletableContext.lambda$addListener$0(CompletableContext.java:42) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2159) ~[?:?]
	at org.elasticsearch.common.concurrent.CompletableContext.completeExceptionally(CompletableContext.java:57) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.netty4.Netty4TcpChannel.lambda$addListener$0(Netty4TcpChannel.java:68) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:337) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:600) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:554) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[?:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[?:?]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[?:?]
	at java.lang.Thread.run(Thread.java:830) [?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /192.168.108.172:9300
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:579) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:820) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[?:?]
	... 7 more
```

---

<div class="post-metadata">

**Author:** ![JPedroM](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@JPedroM](https://discuss.elastic.co/u/JPedroM)\
**Post date:** [February 4, 2020, 10:09am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/6 "2020-02-04T10:09:07Z")

</div>

```
[2020-02-04T10:02:38,464][ERROR][o.e.b.Bootstrap] [remote-cluster-name] Exception
java.lang.IllegalStateException: failed to connect to remote clusters
	at org.elasticsearch.transport.RemoteClusterService.initializeRemoteClusters(RemoteClusterService.java:450) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.TransportService.doStart(TransportService.java:241) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:59) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.node.Node.start(Node.java:688) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:273) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:358) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) [elasticsearch-cli-7.5.0.jar:7.5.0]
	at org.elasticsearch.cli.Command.main(Command.java:90) [elasticsearch-cli-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) [elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) [elasticsearch-7.5.0.jar:7.5.0]
Caused by: java.util.concurrent.ExecutionException: ConnectTransportException[[][192.168.108.172:9300] connect_exception]; nested: AnnotatedConnectException[Connection refused: /192.168.108.172:9300]; nested: ConnectException[Connection refused];
	at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.getValue(BaseFuture.java:266) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.get(BaseFuture.java:239) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.BaseFuture.get(BaseFuture.java:65) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.RemoteClusterService.initializeRemoteClusters(RemoteClusterService.java:444) ~[elasticsearch-7.5.0.jar:7.5.0]
	... 12 more
Caused by: org.elasticsearch.transport.ConnectTransportException: [][192.168.108.172:9300] connect_exception
	at org.elasticsearch.transport.TcpTransport$ChannelsConnectedListener.onFailure(TcpTransport.java:989) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener.lambda$toBiConsumer$3(ActionListener.java:162) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.concurrent.CompletableContext.lambda$addListener$0(CompletableContext.java:42) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2159) ~[?:?]
	at org.elasticsearch.common.concurrent.CompletableContext.completeExceptionally(CompletableContext.java:57) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.netty4.Netty4TcpChannel.lambda$addListener$0(Netty4TcpChannel.java:68) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:337) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:600) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:554) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[?:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[?:?]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[?:?]
	at java.lang.Thread.run(Thread.java:830) ~[?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /192.168.108.172:9300
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:579) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:820) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:600) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:554) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[?:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[?:?]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[?:?]
	at java.lang.Thread.run(Thread.java:830) ~[?:?]
[2020-02-04T10:02:38,467][WARN][o.e.b.ElasticsearchUncaughtExceptionHandler] [remote-cluster-name] uncaught exception in thread [main]
org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to connect to remote clusters
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:163) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:150) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:86) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:125) ~[elasticsearch-cli-7.5.0.jar:7.5.0]
	at org.elasticsearch.cli.Command.main(Command.java:90) ~[elasticsearch-cli-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:115) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:92) ~[elasticsearch-7.5.0.jar:7.5.0]
Caused by: java.lang.IllegalStateException: failed to connect to remote clusters
	at org.elasticsearch.transport.RemoteClusterService.initializeRemoteClusters(RemoteClusterService.java:450) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.TransportService.doStart(TransportService.java:241) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:59) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.node.Node.start(Node.java:688) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:273) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:358) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.5.0.jar:7.5.0]
	... 6 more
```

---

<div class="post-metadata">

**Author:** ![JPedroM](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@JPedroM](https://discuss.elastic.co/u/JPedroM)\
**Post date:** [February 4, 2020, 10:10am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/7 "2020-02-04T10:10:14Z")

</div>

```
Caused by: java.util.concurrent.ExecutionException: ConnectTransportException[[][192.168.108.172:9300] connect_exception]; nested: AnnotatedConnectException[Connection refused: /192.168.108.172:9300]; nested: ConnectException[Connection refused];
	at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.getValue(BaseFuture.java:266) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.BaseFuture$Sync.get(BaseFuture.java:239) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.util.concurrent.BaseFuture.get(BaseFuture.java:65) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.RemoteClusterService.initializeRemoteClusters(RemoteClusterService.java:444) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.TransportService.doStart(TransportService.java:241) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.component.AbstractLifecycleComponent.start(AbstractLifecycleComponent.java:59) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.node.Node.start(Node.java:688) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Bootstrap.start(Bootstrap.java:273) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:358) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:159) ~[elasticsearch-7.5.0.jar:7.5.0]
	... 6 more
Caused by: org.elasticsearch.transport.ConnectTransportException: [][192.168.108.172:9300] connect_exception
	at org.elasticsearch.transport.TcpTransport$ChannelsConnectedListener.onFailure(TcpTransport.java:989) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.action.ActionListener.lambda$toBiConsumer$3(ActionListener.java:162) ~[elasticsearch-7.5.0.jar:7.5.0]
	at org.elasticsearch.common.concurrent.CompletableContext.lambda$addListener$0(CompletableContext.java:42) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:859) ~[?:?]
	at java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:837) ~[?:?]
	at java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:506) ~[?:?]
	at java.util.concurrent.CompletableFuture.completeExceptionally(CompletableFuture.java:2159) ~[?:?]
	at org.elasticsearch.common.concurrent.CompletableContext.completeExceptionally(CompletableContext.java:57) ~[elasticsearch-core-7.5.0.jar:7.5.0]
	at org.elasticsearch.transport.netty4.Netty4TcpChannel.lambda$addListener$0(Netty4TcpChannel.java:68) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:577) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:570) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:549) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:490) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:615) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:608) ~[?:?]
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:337) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:600) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:554) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[?:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[?:?]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[?:?]
	at java.lang.Thread.run(Thread.java:830) [?:?]
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /192.168.108.172:9300
Caused by: java.net.ConnectException: Connection refused
	at sun.nio.ch.Net.pollConnect(Native Method) ~[?:?]
	at sun.nio.ch.Net.pollConnectNow(Net.java:579) ~[?:?]
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:820) ~[?:?]
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[?:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:688) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:600) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:554) ~[?:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:514) ~[?:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$6.run(SingleThreadEventExecutor.java:1050) ~[?:?]
	at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[?:?]
	at java.lang.Thread.run(Thread.java:830) ~[?:?]
[2020-02-04T10:02:38,525][INFO][o.e.n.Node] [remote-cluster-name] stopping ...
[2020-02-04T10:02:38,532][INFO][o.e.n.Node] [remote-cluster-name] stopped
[2020-02-04T10:02:38,532][INFO][o.e.n.Node] [remote-cluster-name] closing ...
[2020-02-04T10:02:38,565][INFO][o.e.n.Node] [remote-cluster-name] closed
```

---

<div class="post-metadata">

**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [February 4, 2020, 10:32am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/8 "2020-02-04T10:32:08Z")

</div>

Thanks, that clarifies things a lot. I opened [https://github.com/elastic/elasticsearch/issues/51855](https://github.com/elastic/elasticsearch/issues/51855) as I think this is a bug.

---

<div class="post-metadata">

**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [February 4, 2020, 10:47am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/9 "2020-02-04T10:47:41Z")

</div>

I think a workaround would be to define the remote cluster in the cluster settings (via `PUT _cluster/settings`) instead of statically in the `elasticsearch.yml` file, since the cluster settings aren't read until later on in startup where they can't cause a failure like this.

---

<div class="post-metadata">

**Author:** ![JPedroM](https://avatars.discourse-cdn.com/v4/letter/j/e274bd/32.png) [@JPedroM](https://discuss.elastic.co/u/JPedroM)\
**Post date:** [February 4, 2020, 10:56am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/10 "2020-02-04T10:56:02Z")

</div>

Yes, I'm using the API option as a workaround but I'd prefer to set this up via the settings file.

Thank you very much for your fast feedback. Waiting for further notices.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 3, 2020, 11:07am UTC](https://discuss.elastic.co/t/es-7-5-0-not-starting-when-remote-cluster-is-down/217691/11 "2020-03-03T11:07:23Z")

</div>

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