In den Logs sieht das so aus.
Master
855:M 10 May 2020 07:51:45.458 * DB loaded from disk: 0.563 seconds
855:M 10 May 2020 07:51:45.458 * Ready to accept connections
855:M 10 May 2020 07:51:45.713 * Replica 10.0.0.2:6379 asks for synchronization
855:M 10 May 2020 07:51:45.713 * Partial resynchronization not accepted: Replication ID mismatch (Replica asked for 'd6042ec68cc9b4e3ccd8ebd8e28012133c24efb4', my replication IDs are '071743$
855:M 10 May 2020 07:51:45.713 * Starting BGSAVE for SYNC with target: disk
855:M 10 May 2020 07:51:45.716 * Background saving started by pid 859
859:C 10 May 2020 07:51:46.107 * DB saved on disk
859:C 10 May 2020 07:51:46.111 * RDB: 24 MB of memory used by copy-on-write
855:M 10 May 2020 07:51:46.162 * Background saving terminated with success
855:M 10 May 2020 07:51:46.324 * Synchronization with replica 10.0.0.2:6379 succeeded
855:M 10 May 2020 07:51:50.674 # Connection with replica 10.0.0.2:6379 lost.
855:M 10 May 2020 07:51:51.254 * Replica 10.0.0.2:6379 asks for synchronization
855:M 10 May 2020 07:51:51.255 * Partial resynchronization request from 10.0.0.2:6379 accepted. Sending 0 bytes of backlog starting from offset 1.
855:M 10 May 2020 07:56:47.021 * 10 changes in 300 seconds. Saving...
855:M 10 May 2020 07:56:47.023 * Background saving started by pid 978
978:C 10 May 2020 07:56:47.426 * DB saved on disk
978:C 10 May 2020 07:56:47.428 * RDB: 28 MB of memory used by copy-on-write
855:M 10 May 2020 07:56:47.529 * Background saving terminated with success
855:M 10 May 2020 07:56:52.961 # Connection with replica 10.0.0.2:6379 lost.
855:M 10 May 2020 07:56:53.649 * Replica 10.0.0.2:6379 asks for synchronization
855:M 10 May 2020 07:56:53.649 * Partial resynchronization request from 10.0.0.2:6379 accepted. Sending 0 bytes of backlog starting from offset 6413.
855:M 10 May 2020 08:01:48.089 * 10 changes in 300 seconds. Saving...
855:M 10 May 2020 08:01:48.091 * Background saving started by pid 1044
1044:C 10 May 2020 08:01:48.502 * DB saved on disk
1044:C 10 May 2020 08:01:48.505 * RDB: 24 MB of memory used by copy-on-write
855:M 10 May 2020 08:01:48.594 * Background saving terminated with success
Slave
1324:S 10 May 2020 07:56:53.651 * DB loaded from disk: 0.638 seconds
1324:S 10 May 2020 07:56:53.651 * Before turning into a replica, using my master parameters to synthesize a cached master: I may be able to synchronize with the new master with just a partia$
1324:S 10 May 2020 07:56:53.651 * Ready to accept connections
1324:S 10 May 2020 07:56:53.651 * Connecting to MASTER 10.0.0.4:6379
1324:S 10 May 2020 07:56:53.651 * MASTER <-> REPLICA sync started
1324:S 10 May 2020 07:56:53.652 * Non blocking connect for SYNC fired the event.
1324:S 10 May 2020 07:56:53.653 * Master replied to PING, replication can continue...
1324:S 10 May 2020 07:56:53.654 * Trying a partial resynchronization (request 86ba864a2575c203a4eddd80bd6f4b058ebe1fb7:6413).
1324:S 10 May 2020 07:56:53.655 * Successful partial resynchronization with master.
1324:S 10 May 2020 07:56:53.655 * MASTER <-> REPLICA sync: Master accepted a Partial Resynchronization.
1324:S 10 May 2020 08:01:54.077 * 10 changes in 300 seconds. Saving...
1324:S 10 May 2020 08:01:54.080 * Background saving started by pid 1494
1494:C 10 May 2020 08:01:54.523 * DB saved on disk
1494:C 10 May 2020 08:01:54.527 * RDB: 0 MB of memory used by copy-on-write
1324:S 10 May 2020 08:01:54.582 * Background saving terminated with success
, dann bräuchte man evt. mal ein Tool um die Redis Datenbank in eine MongoDB zu migrieren.