Get metrics over discovered replica/shards in cluster nodes

[flaviostutz]

One idea is to use mongostat for helping on this

mongostat --username admin --password edidatico!dmin#123 --authenticationDatabase=admin --discover --uri=mongodb://localhost

       host insert query update delete getmore command dirty  used flushes mapped vsize   res faults qrw arw net_in net_out conn    set repl                time

localhost:27017 *0 *0 *0 *0 0 7|0 0 0B 2.07G 362M 0 0|0 0|0 1.31k 17.4k 457 RTR Sep 17 08:16:16.712
shard1a:27017 *0 *0 *0 *0 0 8|0 0.2% 75.8% 0 3.19G 1.58G n/a 0|0 1|0 2.12k 49.7k 52 shard1 PRI Sep 17 08:16:15.780
shard1b:27017 *0 *0 *0 *0 0 5|0 0.2% 55.3% 0 2.88G 1.47G n/a 0|0 1|0 848b 46.8k 43 shard1 SEC Sep 17 08:16:15.812
shard1c:27017 *0 *0 *0 *0 0 3|0 1.3% 63.0% 0 2.95G 1.51G n/a 0|0 1|0 570b 46.1k 46 shard1 SEC Sep 17 08:16:15.844
shard2a:27017 *0 *0 *0 *0 0 4|0 0.4% 79.4% 0 3.32G 1.70G n/a 0|0 1|0 1.36k 46.0k 52 shard2 PRI Sep 17 08:16:15.893
shard2b:27017 *0 *0 *0 *0 0 8|0 0.0% 72.4% 0 3.07G 1.58G n/a 0|0 1|0 1.53k 50.6k 46 shard2 SEC Sep 17 08:16:15.921
shard2c:27017 *0 *0 *0 *0 0 7|0 0.5% 63.1% 0 2.89G 1.46G n/a 0|0 1|0 1.13k 48.9k 44 shard2 SEC Sep 17 08:16:15.984
shard3a:27017 *0 *0 *0 *0 0 6|0 0.6% 74.3% 0 3.09G 1.57G n/a 0|0 1|0 1.65k 47.6k 51 shard3 PRI Sep 17 08:16:16.035
shard3b:27017 *0 *0 *0 *0 0 5|0 0.6% 41.0% 0 2.95G 1.45G n/a 0|0 1|0 698b 46.3k 46 shard3 SEC Sep 17 08:16:16.068
shard3c:27017 *0 *0 *0 *0 0 4|0 0.1% 35.8% 0 2.85G 1.43G n/a 0|0 1|0 696b 46.2k 44 shard3 SEC Sep 17 08:16:16.113

[flaviostutz]

With mongostat you can get various metrics from all nodes like "mongostat -o='host,mem.bits,metrics.document.inserted.diff()=inserted diff,metrics.document.inserted=inserted' --rowcount=5"

https://docs.mongodb.com/manual/reference/command/serverStatus/#serverstatus.metrics.document.inserted