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I am building a cluster using mongodb (3.4). Can I use separate keyfiles for my configuration replica set and my shard replica sets? Judging by the documentation (https://docs.mongodb.com/v3.2/tutorial/enforce-keyfile-access-control-in-existing-replica-set/), it seems possible but I'm not sure.

Thanks

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The keyfile is used to secure intra-cluster communication, so all components of a sharded cluster (mongod and mongos) must use the same keyfile.

The documentation you referenced is for a single replica set deployment. For a sharded cluster see: Enforce Keyfile Access Control in Sharded Cluster.

  • Excellent, thanks Stennie, I've been reading your other mongodb answers for the last few days straight :) – mils Nov 7 '17 at 22:50
  • @mils Great! Glad the answers have been helpful :) – Stennie Nov 7 '17 at 23:08
  • I'm down to the last step of setting up my cluster - selecting a shard key :| I'm terrified of one-way operations though, so if I could pick your juicy brain one more time I would really appreciate it. Question is on SO link – mils Nov 8 '17 at 0:02

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