# Multi-host docker-compose setup woes
**URL:** https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692
**Category:** Elasticsearch
**Tags:** docker
**Created:** [December 7, 2022, 3:09pm UTC](https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692 "2022-12-07T15:09:43Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@bobus](https://discuss.elastic.co/u/bobus)
#### Post date: [December 7, 2022, 3:09pm UTC](https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692/1 "2022-12-07T15:09:43Z")
On three hosts A, B, and C, where a v5 cluster is already running, I need to setup a new v7 cluster, so that at some point I can migrate to v7 and drop the v5.
This means I have to map ports 9200 & 9300 to different ports on the docker host, so i have chosen 9207 & 9307 on all three hosts.
Then I get this inscrutable error message:
es72-01 | {"type": "server", "timestamp": "2022-12-07T14:37:58,625Z", "level": "WARN", "component": "o.e.d.HandshakingTransportAddressConnector", "cluster.name": "es-cluster-test-72", "node.name": "es72-01:9307", "message": "[connectToRemoteMasterNode[172.16.0.149:9307]] completed handshake with [{es72-02:9307}{pSAcmx1sQbeOIwz0ZDO08A}{mur64cg4QUiwSotQ5DlteQ}{10.40.4.2}{10.40.4.2:9300}{cdfhilmrstw}{ml.machine\_memory=4122955776, ml.max\_open\_jobs=512, xpack.installed=true, ml.max\_jvm\_size=536870912, transform.node=true}] but followup connection failed"
es72-01 is on host A, es72-02 is on host B. 10.40.4.2:9300 is the container IP for all 3 hosts.
_Is there a place where I can find a docker-compose file (for each host) that is known to work in my setup?_
Not three nodes on the SAME host, that I can do easily already. Three nodes on THREE separate hosts.
I'll be happy to post my setup for any kind soul willing to assist, but a ready, known-to-work setup would be fantastic, and benefit others in the future with similar problems.
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### Author:  [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [December 7, 2022, 3:29pm UTC](https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692/2 "2022-12-07T15:29:56Z")
The message is improved (slightly) in [Remove unnecessary fork in HandshakingTAConnector by DaveCTurner · Pull Request #85107 · elastic/elasticsearch · GitHub](https://github.com/elastic/elasticsearch/pull/85107) (8.2). More generally, 8.x is better than 7.x in very many ways, so I'd recommend going to 8.x if at all possible.
To break the message down, this means we connected to a node at `172.16.0.149:9307` and the node reported that its canonical "publish" address was `10.40.4.2:9300`, but we could not connect to this node at `10.40.4.2:9300`.
There could be many explanations for this but the most common one is that you're trying to use a Docker `bridge` network across hosts: the [Docker docs](https://docs.docker.com/network/bridge/) say:
> Bridge networks apply to containers running on the **same** Docker daemon host. For communication among containers running on different Docker daemon hosts, you can either manage routing at the OS level, or you can use an [overlay network](https://docs.docker.com/network/overlay/).
If it's not that, you'll need to dig deeper into your Docker networking setup. [These Elasticsearch docs](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-network.html#modules-network-binding-publishing) might help too.
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### Author:  [@bobus](https://discuss.elastic.co/u/bobus)
#### Post date: [December 7, 2022, 4:16pm UTC](https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692/3 "2022-12-07T16:16:38Z")
Thanks David,
That cannot be the answer, because the already running v5 cluster uses bridge networking as well. Unless something has changed from v5 to v7.
Additionally, I have network.publish\_host=\ in both nodes.
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### Author:  [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [December 7, 2022, 4:56pm UTC](https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692/4 "2022-12-07T16:56:35Z")
> [@bobus](#):
>
> Additionally, I have network.publish\_host=\ in both nodes.
Elasticsearch is perhaps not seeing this configuration? The node mentioned in this message definitely has a publish address of `10.40.4.2:9300` at which it's not accessible. If its publish address were `172.16.0.149:9307` then I think it'd work.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 4, 2023, 4:56pm UTC](https://discuss.elastic.co/t/multi-host-docker-compose-setup-woes/320692/5 "2023-01-04T16:56:46Z")
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