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Update from confused old contents that deprecated feature #211

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Update from confused old contents that deprecated feature #211

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11 changes: 9 additions & 2 deletions README.md
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Expand Up @@ -84,7 +84,14 @@ SELECT master_get_active_worker_nodes();
-- (5 rows)
```

If you inspect the configuration file, you’ll find that there is a container that is neither a master nor worker node: `citus_config`. It simply listens for new containers tagged with the worker role, then adds them to the config file in a volume shared with the master node. If new nodes have appeared, it calls `master_initialize_node_metadata` against the master to repopulate the node table. See Citus’ [`workerlist-gen`][workerlist-gen] repo for more details.
When you scale out nodes, then `membership-manager` automatically adds this nodes.
If you want to check this added nodes, then query on master.

``` sql
SELECT * FROM pg_dist_node;
```

See Citus’ [`membership-manager`][membership-manager] repo for more details.

You can stop your cluster with `docker-compose -p citus down`.

Expand All @@ -104,4 +111,4 @@ Unless required by applicable law or agreed to in writing, software distributed
[citus data]: https://www.citusdata.com
[docker-postgres]: https://hub.docker.com/_/postgres/
[compose-config]: docker-compose.yml
[workerlist-gen]: https://github.com/citusdata/workerlist-gen
[membership-manager]: https://github.com/citusdata/membership-manager