From c33c638f39eb626ca7e77cbdd38eef6aee53f25e Mon Sep 17 00:00:00 2001
From: Monty <monty@mariadb.org>
Date: Wed, 21 Dec 2016 22:40:52 +0200
Subject: [PATCH] MDEV-7558 analyze_stmt_slow_query_log fails sporadically in
 buildbot

The reason was that the test was reusing the same log file without deleting it between tests.
Fixed by creating a new log file as part of the test
---
 mysql-test/r/analyze_stmt_slow_query_log.result |  3 +++
 mysql-test/t/analyze_stmt_slow_query_log.test   | 15 +++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/mysql-test/r/analyze_stmt_slow_query_log.result b/mysql-test/r/analyze_stmt_slow_query_log.result
index 7d280e66b6c..a0c4b45dee0 100644
--- a/mysql-test/r/analyze_stmt_slow_query_log.result
+++ b/mysql-test/r/analyze_stmt_slow_query_log.result
@@ -1,4 +1,7 @@
 drop table if exists t1;
+SET @@global.slow_query_log = OFF;
+FLUSH SLOW LOGS;
+SET @@global.slow_query_log = ON;
 create table t1 (a int);
 INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
 select * from t1 where a<3;
diff --git a/mysql-test/t/analyze_stmt_slow_query_log.test b/mysql-test/t/analyze_stmt_slow_query_log.test
index 7346ac3b2c5..44865b652cb 100644
--- a/mysql-test/t/analyze_stmt_slow_query_log.test
+++ b/mysql-test/t/analyze_stmt_slow_query_log.test
@@ -2,6 +2,21 @@
 drop table if exists t1;
 --enable_warnings
 
+#
+# Remove old log file
+#
+let SLOW_LOG_FILE= `select @@slow_query_log_file`;
+
+SET @@global.slow_query_log = OFF;
+
+perl;
+  my $slow_log_file= $ENV{'SLOW_LOG_FILE'} or die "SLOW_LOG_FILE not set";
+  unlink($slow_log_file);
+EOF
+
+FLUSH SLOW LOGS;
+SET @@global.slow_query_log = ON;
+
 create table t1 (a int);
 INSERT INTO t1 VALUES (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
 select * from t1 where a<3;