From d98fcc3f72b9477343a2ac0e8745ad26bef11b10 Mon Sep 17 00:00:00 2001
From: ycycyyc <944696498@qq.com>
Date: Fri, 7 Jun 2024 20:12:25 +0800
Subject: [PATCH] SERVER-91296 The _numStartingThreads variable should be
 self-decremented if thread creation fails

---
 src/mongo/transport/service_executor_reserved.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/mongo/transport/service_executor_reserved.cpp b/src/mongo/transport/service_executor_reserved.cpp
index dd2391cdd47fd..3352eeec5a79a 100644
--- a/src/mongo/transport/service_executor_reserved.cpp
+++ b/src/mongo/transport/service_executor_reserved.cpp
@@ -131,6 +131,9 @@ Status ServiceExecutorReserved::_startWorker() {
             if (launchReplacement) {
                 auto threadStartStatus = _startWorker();
                 if (!threadStartStatus.isOK()) {
+                    lk.lock();
+                    _numStartingThreads--;
+                    lk.unlock();
                     LOGV2_WARNING(22981,
                                   "Could not start new reserve worker thread",
                                   "error"_attr = threadStartStatus);