SERVER-46195: Hang secondary before validate command in rollback_after_enabling_majority_reads.js

1 files changed, 8 insertions, 0 deletions

diff --git a/src/mongo/db/repl/sync_tail.cpp b/src/mongo/db/repl/sync_tail.cpp
index 7a9e4b46d57..38c8b07256c 100644
--- a/src/mongo/db/repl/sync_tail.cpp
+++ b/src/mongo/db/repl/sync_tail.cpp
@@ -98,6 +98,7 @@ namespace {
 
 MONGO_FAIL_POINT_DEFINE(pauseBatchApplicationBeforeCompletion);
 MONGO_FAIL_POINT_DEFINE(hangAfterRecordingOpApplicationStartTime);
+MONGO_FAIL_POINT_DEFINE(hangAfterTransitionToSecondary);
 
 /**
  * This variable determines the number of writer threads SyncTail will have. It can be overridden
@@ -1012,6 +1013,13 @@ void SyncTail::_oplogApplication(OplogBuffer* oplogBuffer,
         // Transition to SECONDARY state, if possible.
         tryToGoLiveAsASecondary(&opCtx, replCoord, minValid);
 
+        if (MONGO_unlikely(hangAfterTransitionToSecondary.shouldFail()) &&
+            replCoord->getMemberState().secondary()) {
+            log() << "fail point hangAfterTransitionToSecondary enabled. Blocking until fail point "
+                     "is disabled.";
+            MONGO_FAIL_POINT_PAUSE_WHILE_SET(hangAfterTransitionToSecondary);
+        }
+
         // Blocks up to a second waiting for a batch to be ready to apply. If one doesn't become
         // ready in time, we'll loop again so we can do the above checks periodically.
         OpQueue ops = batcher->getNextBatch(Seconds(1));