commit eaa4853052071604a2bdf44ac062fc0aa9dfbca0
author Alex Klein <saklein@chromium.org> Thu Jul 28 08:51:32 2022 -0600
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Aug 02 03:39:37 2022 +0000
tree 5ff9ad4724813575e7e105ab8cca77de5df17dbe
parent 7462d20239092715b3efb39ba555937888b7a5a1

api: controller/sysroot: Increase backtracking on bots.

Increase the backtracking on bots to allow resolving more
slot conflict issues.

BUG=b:240088960, b:237827425
TEST=CQ

Change-Id: Ibc0fbee85c76c17cc458c7ac367d581414c676d5
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/3791833
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Alex Klein <saklein@chromium.org>
Tested-by: Alex Klein <saklein@chromium.org>

api/controller/sysroot.py

diff --git a/api/controller/sysroot.py b/api/controller/sysroot.py
index f4ce69b..332b7a3 100644
--- a/api/controller/sysroot.py
+++ b/api/controller/sysroot.py
@@ -27,6 +27,8 @@
 
 _ACCEPTED_LICENSES = '@CHROMEOS'
 
+DEFAULT_BACKTRACK = 30
+
 
 def _GetGomaLogDirectory():
   """Get goma's log directory based on the env variables.
@@ -145,6 +147,7 @@
       force=replace_sysroot,
       upgrade_chroot=update_chroot,
       package_indexes=package_indexes,
+      backtrack=DEFAULT_BACKTRACK,
   )
 
   try:
@@ -280,7 +283,9 @@
       use_goma=use_goma,
       use_remoteexec=use_remoteexec,
       incremental_build=False,
-      dryrun=dryrun)
+      dryrun=dryrun,
+      backtrack=DEFAULT_BACKTRACK,
+  )
 
   try:
     sysroot.BuildPackages(build_target, target_sysroot, build_packages_config)