From f979efd2b5a8f475c4fca6ba0de16d93c23b9ada Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pavel=20Czern=C3=BD?= <pczerny@opennebula.systems>
Date: Wed, 26 Aug 2020 12:10:34 +0200
Subject: [PATCH] B #5040: Fix LogDB::purge_log (#166)

(cherry picked from commit 734bc15b3008df9f7b7c3d7caf853c0aa8d4bdb6)
---
 src/sql/LogDB.cc | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/sql/LogDB.cc b/src/sql/LogDB.cc
index f4aa0afd1b..c74c1be479 100644
--- a/src/sql/LogDB.cc
+++ b/src/sql/LogDB.cc
@@ -611,8 +611,8 @@ int LogDB::purge_log()
 
     multiple_cb<std::vector, uint64_t> cb_info;
     single_cb<string> cb_min_idx;
-    std::vector<uint64_t> maxmin_i{0, 0};
-    std::vector<uint64_t> maxmin_e{0, 0};
+    std::vector<uint64_t> maxmin_i;
+    std::vector<uint64_t> maxmin_e;
     string min_idx;
 
     int rc  = 0;
@@ -677,11 +677,14 @@ int LogDB::purge_log()
 
     cb_info.unset_callback();
 
-    oss.str("");
-    oss << "Purging obsolete LogDB records: " << rc << " records purged. Log state: "
-        << maxmin_i[0] << "," << maxmin_i[1] << " - " << maxmin_e[0] << "," << maxmin_e[1];
+    if (maxmin_i.size() == 2 && maxmin_e.size() == 2)
+    {
+        oss.str("");
+        oss << "Purging obsolete LogDB records: " << rc << " records purged. Log state: "
+            << maxmin_i[0] << "," << maxmin_i[1] << " - " << maxmin_e[0] << "," << maxmin_e[1];
 
-    NebulaLog::log("DBM", Log::INFO, oss);
+        NebulaLog::log("DBM", Log::INFO, oss);
+    }
 
     /* ---------------------------------------------------------------------- */
     /* Federated records. Keep last log_retention federated records           */