SERVER-38506 Create a cluster setIndexCommitQuorum command to parallel createIndexes

2 files changed, 26 insertions, 2 deletions

diff --git a/src/mongo/db/commands/SConscript b/src/mongo/db/commands/SConscript
index 19896af6656..c49907727b9 100644
--- a/src/mongo/db/commands/SConscript
+++ b/src/mongo/db/commands/SConscript
@@ -294,6 +294,16 @@ env.Library(
     ],
 )
 
+env.Library(
+    target='set_index_commit_quorum_idl',
+    source=[
+        env.Idlc('set_index_commit_quorum.idl')[0],
+    ],
+    LIBDEPS_PRIVATE=[
+        '$BUILD_DIR/mongo/db/rw_concern_d',
+        '$BUILD_DIR/mongo/idl/idl_parser',
+    ],
+)
 
 # Commands that should only be present in mongod
 env.Library(
@@ -325,7 +335,6 @@ env.Library(
         "txn_cmds.cpp",
         "user_management_commands.cpp",
         "vote_commit_index_build_command.cpp",
-        env.Idlc('set_index_commit_quorum.idl')[0],
         env.Idlc('vote_commit_index_build.idl')[0],
     ],
     LIBDEPS=[
@@ -365,6 +374,7 @@ env.Library(
         'mongod_fsync',
         'profile_common',
         'servers',
+        'set_index_commit_quorum_idl',
         'shell_protocol',
         'standalone',
         'test_commands_enabled',
diff --git a/src/mongo/db/commands/set_index_commit_quorum_command.cpp b/src/mongo/db/commands/set_index_commit_quorum_command.cpp
index 3ea933e43f4..bdff7263a7c 100644
--- a/src/mongo/db/commands/set_index_commit_quorum_command.cpp
+++ b/src/mongo/db/commands/set_index_commit_quorum_command.cpp
@@ -31,6 +31,9 @@
 
 #include "mongo/platform/basic.h"
 
+#include <iostream>
+#include <string>
+
 #include "mongo/db/auth/authorization_session.h"
 #include "mongo/db/commands.h"
 #include "mongo/db/commands/set_index_commit_quorum_gen.h"
@@ -39,6 +42,7 @@
 #include "mongo/util/log.h"
 
 namespace mongo {
+
 namespace {
 
 /**
@@ -56,7 +60,17 @@ public:
     using Request = SetIndexCommitQuorum;
 
     std::string help() const override {
-        return "Resets the commitQuorum for an index build";
+        std::stringstream ss;
+        ss << "Resets the commitQuorum for the given index builds in a collection. Usage:"
+           << std::endl
+           << "{" << std::endl
+           << "    setIndexCommitQuorum: <string> collection name," << std::endl
+           << "    indexNames: array<string> list of index names," << std::endl
+           << "    commitQuorum: <string|number|object> option to define the required quorum for"
+           << std::endl
+           << "                  the index builds to commit" << std::endl
+           << "}";
+        return ss.str();
     }
 
     bool adminOnly() const override {