1 files changed, 19 insertions, 0 deletions
diff --git a/src/mongo/db/index_builds_coordinator.cpp b/src/mongo/db/index_builds_coordinator.cpp
index 30b66e249b5..0c3cea6fc00 100644
--- a/src/mongo/db/index_builds_coordinator.cpp
+++ b/src/mongo/db/index_builds_coordinator.cpp
@@ -191,6 +191,11 @@ void removeIndexBuildEntryAfterCommitOrAbort(OperationContext* opCtx,
         return;
     }
 
+    if (replCoord->getSettings().shouldRecoverFromOplogAsStandalone()) {
+        // TODO SERVER-60753: Remove this mixed-mode write.
+        opCtx->recoveryUnit()->allowUntimestampedWrite();
+    }
+
     auto status = indexbuildentryhelpers::removeIndexBuildEntry(
         opCtx, indexBuildEntryCollection, replState.buildUUID);
     if (!status.isOK()) {
@@ -545,6 +550,10 @@ Status IndexBuildsCoordinator::_startIndexBuildForRecovery(OperationContext* opC
 
     CollectionWriter collection(opCtx, nss);
     {
+        // TODO SERVER-64760: Remove this usage of `allowUntimestampedWrite`. We often have a valid
+        // timestamp for this write, but the callers of this function don't pass it through.
+        opCtx->recoveryUnit()->allowUntimestampedWrite();
+
         // These steps are combined into a single WUOW to ensure there are no commits without
         // the indexes.
         // 1) Drop all unfinished indexes.
@@ -1880,6 +1889,12 @@ Status IndexBuildsCoordinator::_setUpIndexBuildForTwoPhaseRecovery(
     const UUID& buildUUID) {
     NamespaceStringOrUUID nssOrUuid{dbName.toString(), collectionUUID};
 
+    if (opCtx->recoveryUnit()->isActive()) {
+        // This function is shared by multiple callers. Some of which have opened a transaction to
+        // perform reads. This function may make mixed-mode writes. Mixed-mode assertions can only
+        // be suppressed when beginning a fresh transaction.
+        opCtx->recoveryUnit()->abandonSnapshot();
+    }
     // Don't use the AutoGet helpers because they require an open database, which may not be the
     // case when an index builds is restarted during recovery.
 
@@ -2057,6 +2072,10 @@ IndexBuildsCoordinator::PostSetupAction IndexBuildsCoordinator::_setUpIndexBuild
     options.protocol = replState->protocol;
 
     try {
+        // TODO SERVER-64760: Remove this usage of `allowUntimestampedWrite`. There are cases where
+        // a timestamp is available to use, but the information is not passed through.
+        opCtx->recoveryUnit()->allowUntimestampedWrite();
+
         if (!replSetAndNotPrimary) {
             // On standalones and primaries, call setUpIndexBuild(), which makes the initial catalog
             // write. On primaries, this replicates the startIndexBuild oplog entry.