How can I persist db data in docker container?

[ShunyiChen]

Hello Team,

In my Windows Docker Desktop environment, I try to start dragonfly and persist data in this command:
docker run -d -p 6379:6379 --name dragonflydb -v J:/dragonflydb/data:/data --ulimit memlock=-1 docker.dragonflydb.io/dragonflydb/dragonfly, use the -v Docker option to map it to my host folder - J:/dragonflydb/data, But when I restarted the container, the key-value pairs data that I saved earlier was gone, the container logs are attached here

`2023-04-24 13:00:41 I20230424 05:00:41.002033     1 init.cc:56] dragonfly running in opt mode.
2023-04-24 13:00:41 I20230424 05:00:41.002089     1 dfly_main.cc:476] Starting dragonfly df-v1.1.2-6d269096df37e9f4389d4d2b354113a0c8cbfb74
2023-04-24 13:00:41 I20230424 05:00:41.002105     1 dfly_main.cc:499] maxmemory has not been specified. Deciding myself....
2023-04-24 13:00:41 I20230424 05:00:41.002138     1 dfly_main.cc:504] Found 23.57GiB available memory. Setting maxmemory to 18.86GiB
2023-04-24 13:00:41 W20230424 05:00:41.002166     1 dfly_main.cc:429] iouring API is not supported. switching to epoll.
2023-04-24 13:00:41 I20230424 05:00:41.003279     1 proactor_pool.cc:66] Running 6 io threads
2023-04-24 13:00:41 I20230424 05:00:41.010058     1 server_family.cc:419] Data directory is "/data"
2023-04-24 13:00:41 I20230424 05:00:41.013139    11 listener_interface.cc:96] sock[22] AcceptServer - listening on port 6379
2023-04-24 13:04:58 I20230424 05:04:58.130040     9 accept_server.cc:25] Exiting on signal Terminated
2023-04-24 13:04:58 I20230424 05:04:58.140590    11 listener_interface.cc:174] Listener stopped for port 6379
2023-04-24 13:05:03 I20230424 05:05:03.764078     1 init.cc:56] dragonfly running in opt mode.
2023-04-24 13:05:03 I20230424 05:05:03.764128     1 dfly_main.cc:476] Starting dragonfly df-v1.1.2-6d269096df37e9f4389d4d2b354113a0c8cbfb74
2023-04-24 13:05:03 I20230424 05:05:03.764143     1 dfly_main.cc:499] maxmemory has not been specified. Deciding myself....
2023-04-24 13:05:03 I20230424 05:05:03.764178     1 dfly_main.cc:504] Found 23.58GiB available memory. Setting maxmemory to 18.86GiB
2023-04-24 13:05:03 W20230424 05:05:03.764204     1 dfly_main.cc:429] iouring API is not supported. switching to epoll.
2023-04-24 13:05:03 I20230424 05:05:03.764916     1 proactor_pool.cc:66] Running 6 io threads
2023-04-24 13:05:03 I20230424 05:05:03.771873     1 server_family.cc:419] Data directory is "/data"
2023-04-24 13:05:03 I20230424 05:05:03.778662    11 listener_interface.cc:96] sock[22] AcceptServer - listening on port 6379
2023-04-24 13:05:03 W20230424 05:05:03.892839    12 dns_resolve.cc:121] Only IPv4 is supported`

I'm not sure where I went wrong, can you help me with it? Thanks!

[IgnisDa]

@ShunyiChen did you find a solution for this?

[gaby]

@romange Can you help here? I also had the same question. Normally with Redis I run it this way:

redis --save 30 0

What's the equivalent of that in Dragonfly ?

[romange]

https://www.dragonflydb.io/docs/managing-dragonfly/backups#the-snapshot_cron-flag

[gaby]

Thanks 💪