[docs] add an explanation for setting the configuration of kv.snapshot.interval to 0s

Author: river.yu

website/docs/maintenance/configuration.md

@@ -132,7 +132,7 @@ during the Fluss cluster working.
 
 | Option                                            | Type       | Default                       | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
 |---------------------------------------------------|------------|-------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| kv.snapshot.interval                              | Duration   | 10min                         | The interval to perform periodic snapshot for kv data. The default setting is 10 minutes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
+| kv.snapshot.interval                              | Duration   | 10min                         | The interval to perform periodic snapshot for kv data. The default setting is 10 minutes. If the value is set to 0s, it means not to do kv snapshot.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
 | kv.snapshot.scheduler-thread-num                  | Integer    | 1                             | The number of threads that the server uses to schedule snapshot kv data for all the replicas in the server.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
 | kv.snapshot.transfer-thread-num                   | Integer    | 4                             | The number of threads the server uses to transfer (download and upload) kv snapshot files.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | kv.snapshot.num-retained                          | Integer    | 1                             | The maximum number of completed snapshots to retain.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |

website/docs/maintenance/tiered-storage/remote-storage.md

@@ -54,7 +54,7 @@ Below is the list for all configurations to control the snapshot behavior in clu
 
 | Configuration                    | type     | Default | Description                                                                                                                                                                                         |
 |----------------------------------|----------|---------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| kv.snapshot.interval             | Duration | 10min   | The interval to perform periodic snapshot for kv data.                                                                                                                                              |
+| kv.snapshot.interval             | Duration | 10min   | The interval to perform periodic snapshot for kv data. If the value is set to 0s, it means not to do kv snapshot.                                                                                   |
 | kv.snapshot.scheduler-thread-num | Integer  | 1       | The number of threads that the server uses to schedule snapshot kv data for all the replicas in the server.                                                                                         |
 | kv.snapshot.transfer-thread-num  | Integer  | 4       | The number of threads the server uses to transfer (download and upload) kv snapshot files.                                                                                                          |
 | kv.snapshot.num-retained         | Integer  | 1       | The maximum number of completed snapshots to retain. It's recommended to set it to a larger value to avoid the case that server delete the snapshot while the client is still reading the snapshot. |