innodb_fts.sync_block test unstable due to slow query log nondeterminism

[Laurynas Biveinis]

Copy of https://bugs.mysql.com/bug.php?id=81467, as seen on e.g. 5.6 trunk under Valgrind:

innodb_fts.sync_block w3 [ fail ]
...
--- /mnt/workspace/percona-server-5.6-valgrind/BUILD_TYPE/valgrind/Host/ubuntu-xenial-64bit/mysql-test/suite/innodb_fts/r/sync_block.result 2017-01-31 19:51:30.243098399 +0300
+++ /mnt/workspace/percona-server-5.6-valgrind/BUILD_TYPE/valgrind/Host/ubuntu-xenial-64bit/build/mysql-test/var/3/log/sync_block.reject 2017-02-02 14:06:59.074782788 +0300
@@ -30,6 +30,11 @@
 # slow log results should only contain INSERT INTO t1.
 SELECT sql_text FROM mysql.slow_log WHERE query_time >= '00:00:02';
 sql_text
+CREATE TABLE t1 (
+FTS_DOC_ID BIGINT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
+title VARCHAR(200),
+FULLTEXT(title)
+) ENGINE = InnoDB
 INSERT INTO t1(title) VALUES('mysql database')
 SET GLOBAL debug="-d,fts_instrument_sync_debug,fts_instrument_sync_sleep";
 TRUNCATE TABLE mysql.slow_log;
@@ -56,6 +61,11 @@
 # slow log results should be empty here.
 SELECT sql_text FROM mysql.slow_log WHERE query_time >= '00:00:02';
 sql_text
+CREATE TABLE t1 (
+FTS_DOC_ID BIGINT UNSIGNED AUTO_INCREMENT NOT NULL PRIMARY KEY,
+title VARCHAR(200),
+FULLTEXT(title)
+) ENGINE = InnoDB
 SET GLOBAL debug="-d,fts_instrument_sync_request,fts_instrument_sync_sleep";
 TRUNCATE TABLE mysql.slow_log;
 DROP TABLE t1,t2;

[Laurynas Biveinis (laurynas-biveinis)]

     https://github.com/percona/percona-server/pull/1374
     https://github.com/percona/percona-server/pull/1375

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-2232