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-rw-r--r--src/mongo/db/s/shard_key_util.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mongo/db/s/shard_key_util.cpp b/src/mongo/db/s/shard_key_util.cpp
index 906757d353c..62c67614e2e 100644
--- a/src/mongo/db/s/shard_key_util.cpp
+++ b/src/mongo/db/s/shard_key_util.cpp
@@ -167,7 +167,8 @@ void validateShardKeyAgainstExistingIndexes(OperationContext* opCtx,
}
}
- auto countCmd = BSON("count" << nss.coll());
+ auto countCmd = BSON("count" << nss.coll() << repl::ReadConcernArgs::kReadConcernFieldName
+ << repl::ReadConcernArgs::kImplicitDefault);
auto countRes =
uassertStatusOK(primaryShard->runCommand(opCtx,
ReadPreferenceSetting(ReadPreference::PrimaryOnly),