Mobile bug report: MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk.

Symptoms

Connecting to the on-site application results in the following error (outdated browser): 

ServiceStack.Redis.RedisResponseException: MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error., sPort: 53192, LastCommand: \\r\\n в ServiceStack.Redis.RedisNativeClient.CreateResponseError(String error)\\r\\n в ServiceStack.Redis.RedisNativeClient.ReadInt()\\r\\n в ServiceStack.Redis.RedisNativeClient.Expire(String key, Int32 seconds)\\r\\n в ServiceStack.Redis.RedisClient.ExpireEntryIn(String key, TimeSpan expireIn)\\r\\n в Terrasoft.Redis.RedisSessionStateStoreProvider.ResetItemTimeout(HttpContext context, String id)\\r\\n в System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData)\\r\\n in System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication

Cause

This error is caused by Redis settings on the server.

Solution

Use third-party documentation to learn more. 

- http://stackoverflow.com/questions/19581059/misconf-redis-is-configured-to-save-rdb-snapshots;

- http://stackoverflow.com/questions/19873048/redis-is-configured-to-save-rdb-snapshots-but-is-currently-not-able-to-persist;

- https://gist.github.com/kapkaev/4619127.

Use the mobile version of the application to ensure correct operation - the application may not work properly in mobile browsers.