Minor - P4 Current log files for shards do not have consistency between "moveChunk.from" and moveChunk.to" log events.
moveChunk.from provides both source shard and destination shard fields whilst moveChunk.to does not. I am aware that this can be sourced from previous events such as moveChunk.commit, but it will be a lot better if the information can be gathered from one line
moveChunk.from:
2020-01-21T14:51:49.275+1100 I SHARDING [conn29] about to log metadata event into changelog: { _id: "XX", server: "XX", clientAddr: "", time: new Date(1579578709275), what: "moveChunk.from", ns: "test.products", details: { min: { sku: MinKey }, max: { sku: 23153496 }, step 1 of 6: 0, step 2 of 6: 1, step 3 of 6: 226, step 4 of 6: 13441, step 5 of 6: 331, step 6 of 6: 61, to: "shard02", from: "shard01", note: "success" } }
moveChunk.to:
2020-01-21T14:51:49.207+1100 I SHARDING [migrateThread] about to log metadata event into changelog: { _id: "XX, server: "XX", clientAddr: "", time: new Date(1579578709206), what: "moveChunk.to", ns: "test.products", details: { min: { sku: MinKey }, max: { sku: 23153496 }, step 1 of 6: 157, step 2 of 6: 20, step 3 of 6: 11589, step 4 of 6: 0, step 5 of 6: 1704, step 6 of 6: 293, note: "success" } }