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I have a mongodb replicaset with 13000 tiny databases ( < 10 Mb )

This is now running on mongodb5.0

I restarted today to set the replicaset name This is taking for ever

I get lines like

{"t":{"$date":"2022-05-03T23:08:39.631+05:30"},"s":"I",  "c":"STORAGE",  "id":22430,   "ctx":"Checkpointer","msg":"WiredTiger message","attr":{"message":"[1651599519:631928][104996:0x7f9484fb3700], WT_SESSION.checkpoint: [WT_VERB_CHECKPOINT_PROGRESS] saving checkpoint snapshot min: 401654, snapshot max: 401654 snapshot count: 0, oldest timestamp: (0, 0) , meta checkpoint timestamp: (0, 0) base write gen: 11084123"}}
{"t":{"$date":"2022-05-03T23:09:39.766+05:30"},"s":"I",  "c":"STORAGE",  "id":22430,   "ctx":"Checkpointer","msg":"WiredTiger message","attr":{"message":"[1651599579:766654][104996:0x7f9484fb3700], WT_SESSION.checkpoint: [WT_VERB_CHECKPOINT_PROGRESS] saving checkpoint snapshot min: 404874, snapshot max: 404874 snapshot count: 0, oldest timestamp: (0, 0) , meta checkpoint timestamp: (0, 0) base write gen: 11084123"}}

Is there a limit on how many DBs can be created on a single cluster ?

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