.port
...
...
```
All appear to have reasonable defaults, so I’ve added the following to my configuration.nix but no redis server seems to be running.
`services.redis.servers."my-redis".enable=true;`
Thoughts?
---
### Author:  [@jdaly](https://discourse.nixos.org/u/jdaly)
#### Post date: [September 21, 2022, 4:27pm UTC](https://discourse.nixos.org/t/how-to-setup-redis-server-configuration-nix/21878/2 "2022-09-21T16:27:29Z")
I’ve verified the redis server is install and can run it manually from the command-line as follows:
````auto
redis-server
_.-`` `. `_. ''-._ Redis 7.0.4 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 4117
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | https://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
4117:M 21 Sep 2022 10:25:25.276 # Server initialized
4117:M 21 Sep 2022 10:25:25.276 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
4117:M 21 Sep 2022 10:25:25.276 * Loading RDB produced by version 7.0.4
4117:M 21 Sep 2022 10:25:25.276 * RDB age 96 seconds
4117:M 21 Sep 2022 10:25:25.276 * RDB memory usage when created 0.85 Mb
4117:M 21 Sep 2022 10:25:25.276 * Done loading RDB, keys loaded: 0, keys expired: 0.
4117:M 21 Sep 2022 10:25:25.276 * DB loaded from disk: 0.000 seconds
4117:M 21 Sep 2022 10:25:25.276 * Ready to accept connections
````
And I can ping it with:
```auto
redli ping
PONG
```
So, its definitely installed and running, but why doesn’t my configuration.nix start the server automatically?
---
### Author:  [@aanderse](https://discourse.nixos.org/u/aanderse)
#### Post date: [September 21, 2022, 5:48pm UTC](https://discourse.nixos.org/t/how-to-setup-redis-server-configuration-nix/21878/3 "2022-09-21T17:48:35Z")
`services.redis.servers..enable` defaults to `false`, which contradicts a fair bit of other design in NixOS.
---
### Author:  [@jdaly](https://discourse.nixos.org/u/jdaly)
#### Post date: [September 21, 2022, 6:42pm UTC](https://discourse.nixos.org/t/how-to-setup-redis-server-configuration-nix/21878/4 "2022-09-21T18:42:49Z")
@aanderse Yes, I discovered that, however, my current configuration.nix contains:
```auto
#-------------------------------------------------------------------------
# Enable redis server
#-------------------------------------------------------------------------
services.redis.servers."talos-redis".enable=true;
```
Yet, the redis server – does not start.
Any ideas?
---
### Author:  [@aanderse](https://discourse.nixos.org/u/aanderse)
#### Post date: [September 21, 2022, 9:47pm UTC](https://discourse.nixos.org/t/how-to-setup-redis-server-configuration-nix/21878/5 "2022-09-21T21:47:30Z")
What does `systemctl status redis-talon-redis.service` say? What about `journalctl -u redis-talon-redis.service`?
---
### Author:  [@jdaly](https://discourse.nixos.org/u/jdaly)
#### Post date: [September 22, 2022, 7:44pm UTC](https://discourse.nixos.org/t/how-to-setup-redis-server-configuration-nix/21878/6 "2022-09-22T19:44:39Z")
@aanderse
```auto
systemctl status redis-talon-redis.service
Unit redis-talon-redis.service could not be found.
```
and
```auto
journalctl -u redis-talon-redis.service
-- No entries --
```
Strangely, I can see messages during booting on the console stating “Starting redis server …”
and
journalctl -b
```auto
Sep 22 13:41:23 talos-devenv redis-server[1126]: Supervised by systemd. Please make sure you set appropriate values for TimeoutStartSec and TimeoutStopSec in your service unit.
Sep 22 13:41:23 talos-devenv redis-server[1126]: oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
Sep 22 13:41:23 talos-devenv redis-server[1126]: Redis version=7.0.4, bits=64, commit=00000000, modified=0, pid=1126, just started
Sep 22 13:41:23 talos-devenv redis-server[1126]: Configuration loaded
Sep 22 13:41:23 talos-devenv redis[1126]: monotonic clock: POSIX clock_gettime
Sep 22 13:41:23 talos-devenv redis[1126]: Running mode=standalone, port=0.
Sep 22 13:41:23 talos-devenv redis[1126]: Server initialized
Sep 22 13:41:23 talos-devenv redis[1126]: WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = >
Sep 22 13:41:23 talos-devenv redis[1126]: Loading RDB produced by version 7.0.4
Sep 22 13:41:23 talos-devenv redis[1126]: RDB age 113 seconds
Sep 22 13:41:23 talos-devenv redis[1126]: RDB memory usage when created 0.82 Mb
Sep 22 13:41:23 talos-devenv redis[1126]: Done loading RDB, keys loaded: 0, keys expired: 0.
Sep 22 13:41:23 talos-devenv redis[1126]: DB loaded from disk: 0.000 seconds
Sep 22 13:41:23 talos-devenv redis[1126]: The server is now ready to accept connections at /run/redis-talos-redis/redis.sock
```
It certainly appears to be running … and should be ‘ping-able’ on port 6379 – the default port, but alas I’, seeing ‘connection refused’.
```auto
2022/09/22 13:49:05 Dial dial tcp 127.0.0.1:6379: connect: connection refused
```
If I start the server manually, ‘redis-server’ , I can ping it ‘redli ping’ as expected.
---
### Author:  [@jdaly](https://discourse.nixos.org/u/jdaly)
#### Post date: [September 22, 2022, 8:46pm UTC](https://discourse.nixos.org/t/how-to-setup-redis-server-configuration-nix/21878/7 "2022-09-22T20:46:19Z")
@aanderse Solved redis server startup. Thanks for all your suggestions!
For what its worth, the problem appeared to be that both a ‘named’ server and ‘port’ are required.
```auto
#-------------------------------------------------------------------------
# Enable redis service
#-------------------------------------------------------------------------
services.redis.servers."talos".enable=true;
services.redis.servers."talos".port=6379;
```
The [Nixos redis options docs](https://search.nixos.org/options?channel=22.05&show=services.redis.servers.%3Cname%3E.port&from=0&size=50&sort=relevance&type=packages&query=services.redis.servers) for “services.redis.servers..port” state if no port is supplied, the default port of 6379 will be used, however, that doesn’t seem to be the case.
```auto
services.redis.servers..port
Name
services.redis.servers..port
Description
The TCP port to accept connections. If port 0 is specified Redis will not listen on a TCP socket.
Type
16 bit unsigned integer; between 0 and 65535 (both inclusive)
Default
if name == "" then 6379 else 0
Declared in
nixos/modules/services/databases/redis.nix
```