From 993b3884d5a0bdf882e694342c2d369980d3706f Mon Sep 17 00:00:00 2001
From: Christopher Jones <chrisdjones15@gmail.com>
Date: Wed, 20 Oct 2021 12:11:40 -0500
Subject: [PATCH] Fix concurrent lumi usage in DQMStore

Avoid deleting the MonitorElement meta data for localMEs
---
 DQMServices/Core/src/DQMStore.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/DQMServices/Core/src/DQMStore.cc b/DQMServices/Core/src/DQMStore.cc
index 01aa1b3c1e1f1..bc685f754f988 100644
--- a/DQMServices/Core/src/DQMStore.cc
+++ b/DQMServices/Core/src/DQMStore.cc
@@ -563,6 +563,14 @@ namespace dqm::implementation {
       auto other = this->findME(me);
       if (other) {
         // we still have a global one, so we can just remove this.
+        for (auto& locals : localMEs_) {
+          auto itLocal = locals.second.find(me);
+          if (itLocal != locals.second.end() and (*itLocal)->mutable_ == me->mutable_) {
+            debugTrackME("cleanupLumi (switchData)", *itLocal, me);
+            (*itLocal)->switchData(other);
+            break;
+          }
+        }
         debugTrackME("cleanupLumi (delete)", nullptr, me);
         delete me;
       } else {