SERVER-76278 Log extra migration information at the end of the operationr5.0.18-rc2r5.0.18

(cherry picked from commit 41cfc87e3cc05ed15df9029cdb694de17267572c)

2 files changed, 32 insertions, 0 deletions

diff --git a/src/mongo/db/s/migration_source_manager.h b/src/mongo/db/s/migration_source_manager.h
index 17f235bedbe..eb488cbc31c 100644
--- a/src/mongo/db/s/migration_source_manager.h
+++ b/src/mongo/db/s/migration_source_manager.h
@@ -188,6 +188,17 @@ public:
      */
     BSONObj getMigrationStatusReport() const;
 
+    boost::optional<UUID> getMigrationId() {
+        if (_coordinator) {
+            return _coordinator->getMigrationId();
+        }
+        return boost::none;
+    }
+
+    long long getOpTimeMillis() {
+        return _entireOpTimer.millis();
+    }
+
 private:
     // Used to track the current state of the source manager. See the methods above, which have
     // comments explaining the various state transitions.
diff --git a/src/mongo/db/s/move_chunk_command.cpp b/src/mongo/db/s/move_chunk_command.cpp
index 56d493a7f63..e6112a30823 100644
--- a/src/mongo/db/s/move_chunk_command.cpp
+++ b/src/mongo/db/s/move_chunk_command.cpp
@@ -269,6 +269,11 @@ private:
             return;
         }
 
+        long long totalDocsCloned = ShardingStatistics::get(opCtx).countDocsClonedOnDonor.load();
+        long long totalBytesCloned = ShardingStatistics::get(opCtx).countBytesClonedOnDonor.load();
+        long long totalCloneTime =
+            ShardingStatistics::get(opCtx).totalDonorChunkCloneTimeMillis.load();
+
         MigrationSourceManager migrationSourceManager(
             opCtx, moveChunkRequest, donorConnStr, recipientHost);
 
@@ -291,6 +296,22 @@ private:
         uassertStatusOKWithWarning(migrationSourceManager.commitChunkMetadataOnConfig());
         moveTimingHelper.done(6);
         moveChunkHangAtStep6.pauseWhileSet();
+
+        long long docsCloned =
+            ShardingStatistics::get(opCtx).countDocsClonedOnDonor.load() - totalDocsCloned;
+        long long bytesCloned =
+            ShardingStatistics::get(opCtx).countBytesClonedOnDonor.load() - totalBytesCloned;
+        long long cloneTime =
+            ShardingStatistics::get(opCtx).totalDonorChunkCloneTimeMillis.load() - totalCloneTime;
+        auto migrationId = migrationSourceManager.getMigrationId();
+
+        LOGV2(7627801,
+              "Migration finished",
+              "migrationId"_attr = migrationId ? migrationId->toString() : "",
+              "totalTimeMillis"_attr = migrationSourceManager.getOpTimeMillis(),
+              "docsCloned"_attr = docsCloned,
+              "bytesCloned"_attr = bytesCloned,
+              "cloneTime"_attr = cloneTime);
     }
 
 private: