diff --git a/source/administration/indexes.txt b/source/administration/indexes.txt index 1c31b338715..5299351f1ff 100644 --- a/source/administration/indexes.txt +++ b/source/administration/indexes.txt @@ -265,10 +265,9 @@ on :term:`secondary` members of replica sets. The foreground index building process blocks all replication and read operations on the secondaries while they build the index. -Secondaries will only begin building indexes *after* the -:term:`primary` finishes building the index. All secondaries will -build indexes at the same time. In :term:`sharded clusters `, the :program:`mongos` will send :func:`ensureIndex() +Secondaries will begin building indexes *after* the +:term:`primary` finishes building the index. In :term:`sharded clusters +`, the :program:`mongos` will send :func:`ensureIndex() ` to the primary members of the replica set for each shard, which then replicate to the secondaries after the primary finishes building the index.