1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
# Let's see if FLUSH TABLES WITH READ LOCK can be killed when waiting
# for running commits to finish (in the past it could not)
# This will not be a meaningful test on non-debug servers so will be
# skipped.
# If running mysql-test-run --debug, the --debug added by
# mysql-test-run to the mysqld command line will override the one of
# -master.opt. But this test is designed to still pass then (though it
# won't test anything interesting).
# This also won't work with the embedded server test
--source include/not_embedded.inc
--source include/have_debug.inc
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
# Disable concurrent inserts to avoid test failures when reading the
# connection id which was inserted into a table by another thread.
SET @old_concurrent_insert= @@global.concurrent_insert;
SET @@global.concurrent_insert= 0;
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
connection con1;
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
CREATE TABLE t1 (kill_id INT);
INSERT INTO t1 VALUES(connection_id());
# Thanks to the parameter we passed to --debug, this FLUSH will
# block on a debug build running with our --debug=make_global... It
# will block until killed. In other cases (non-debug build or other
# --debug) it will succeed immediately
connection con1;
send FLUSH TABLES WITH READ LOCK;
# kill con1
connection con2;
SELECT ((@id := kill_id) - kill_id) FROM t1;
# Wait for the debug sync point, test won't run on non-debug
# builds anyway.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for all running commits to finish"
and info = "flush tables with read lock";
--source include/wait_condition.inc
KILL CONNECTION @id;
connection con1;
# On debug builds it will be error 1053 (killed); on non-debug, or
# debug build running without our --debug=make_global..., will be
# error 0 (no error). The only important thing to test is that on
# debug builds with our --debug=make_global... we don't hang forever.
--error 0,1317,2013
reap;
connection con2;
DROP TABLE t1;
connection default;
disconnect con2;
# Restore global concurrent_insert value
SET @@global.concurrent_insert= @old_concurrent_insert;
# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc
|
