From 85652e3b3fc6ae1f81435915976714c40088c576 Mon Sep 17 00:00:00 2001
From: Zack Winter <3457246+zackwintermdb@users.noreply.github.com>
Date: Wed, 22 Apr 2026 08:59:00 -0700
Subject: [PATCH] SERVER-125021: Attempt Backing URL in 90% of Bazel
 Invocations Before Hitting Remote Asset API (#52328)

GitOrigin-RevId: 564e715155028dc5c6229f1fa5b36bfb32288082
---
 .bazeliskrc       |  2 +-
 .bazelversion     |  2 +-
 MODULE.bazel.lock |  4 ++--
 tools/bazel       | 10 ++++++++++
 4 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/.bazeliskrc b/.bazeliskrc
index e2a1d6510c8..2e3eac9992f 100644
--- a/.bazeliskrc
+++ b/.bazeliskrc
@@ -1 +1 @@
-BAZELISK_BASE_URL=https://mdb-build-public.s3.amazonaws.com/bazel_binary_waterfall_builds/06d753863dde251110daef739d2c3e419782b881
+BAZELISK_BASE_URL=https://mdb-build-public.s3.amazonaws.com/bazel_binary_waterfall_builds/90b8a7b661043fc7241aecddd17d39e75c8efd23
diff --git a/.bazelversion b/.bazelversion
index 7c7672cb73d..958255a1151 100644
--- a/.bazelversion
+++ b/.bazelversion
@@ -1 +1 @@
-7.5.0-mongo_06d753863d
\ No newline at end of file
+7.5.0-mongo_90b8a7b661
\ No newline at end of file
diff --git a/MODULE.bazel.lock b/MODULE.bazel.lock
index c3bb24cc6d0..b99fe749029 100644
--- a/MODULE.bazel.lock
+++ b/MODULE.bazel.lock
@@ -537,7 +537,7 @@
     },
     "@@aspect_rules_js~//npm:extensions.bzl%pnpm": {
       "general": {
-        "bzlTransitiveDigest": "FM0lxNWZPFw5ktWotCCf2WsD2AHJDANeh2GFH57DP3U=",
+        "bzlTransitiveDigest": "ZiETCAm3yu6gU5QC0R5OrRO0ZS2lrnh7hm9Bd17t1As=",
         "usagesDigest": "nreWOSoW3keGlKdHpT5drUTOjHwIzGpp1haLECAZ4dM=",
         "recordedFileInputs": {},
         "recordedDirentsInputs": {},
@@ -2002,7 +2002,7 @@
     },
     "@@rules_rust~//crate_universe/private:internal_extensions.bzl%cu_nr": {
       "general": {
-        "bzlTransitiveDigest": "HTx857xqjW5LFsaeJYKJhecWUKP9B57NYPrM1DCnnas=",
+        "bzlTransitiveDigest": "L9rxpG84287VYpuRM8hACDZ7jT04aXbaoJAQWk6Gf+Q=",
         "usagesDigest": "jdsFFevZIrOcSfuuZxyovS/wXbhPLIa/eBqyNOiTP98=",
         "recordedFileInputs": {},
         "recordedDirentsInputs": {},
diff --git a/tools/bazel b/tools/bazel
index eed696f33cb..66090efa18a 100755
--- a/tools/bazel
+++ b/tools/bazel
@@ -9,6 +9,16 @@
 REPO_ROOT=$(dirname $(dirname $(realpath "$0")))
 bazel_real="$BAZEL_REAL"
 
+# 90% of the time, prefer downloading from the direct URL before trying the
+# Remote Asset API (experimental_remote_downloader).  This lets us benefit
+# off of the added redundancy of the remote downloader while reducing traffic
+# that's transmitted through the (expensive) ELB.
+if [ -n "${CI:-}" ] && [ -z "${REVERSE_REMOTE_API_ATTEMPT_ORDER+x}" ]; then
+  if [ $(( RANDOM % 10 )) -ne 0 ]; then
+    export REVERSE_REMOTE_API_ATTEMPT_ORDER=1
+  fi
+fi
+
 
 
 # If disk space becomes an issue, this block can be used to clean up configs