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Last slice of fix for Bug#42003 tests missing the disconnect of connections <> default

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+ Fix for Bug#43114 wait_until_count_sessions too restrictive, random PB failures
+ Removal of a lot of other weaknesses found
+ modifications according to review
This commit is contained in:
Matthias Leich
2009-03-03 21:34:18 +01:00
parent e1a197caba
commit 140cc614c9
39 changed files with 1352 additions and 902 deletions
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33
mysql-test/include/wait_until_count_sessions.inc
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@ -2,14 +2,23 @@
#
# SUMMARY
#
# Waits until the passed number ($count_sessions) of concurrent sessions was
# observed via
# Waits until the passed number ($count_sessions) of concurrent sessions or
# a smaller number was observed via
# SHOW STATUS LIKE 'Threads_connected'
# or the operation times out.
# Note: Starting with 5.1 we could also use
# SELECT COUNT(*) FROM information_schema.processlist
# I stay with "SHOW STATUS LIKE 'Threads_connected'" because this
# runs in all versions 5.0+
# Note:
# 1. We wait for $current_sessions <= $count_sessions because in the use case
# with count_sessions.inc before and wait_until_count_sessions.inc after
# the core of the test it could happen that the disconnects of sessions
# belonging to the preceeding test are not finished.
# sessions at test begin($count_sessions) = m + n
# sessions of the previous test which will be soon disconnected = n (n >= 0)
# sessions at test end ($current sessions, assuming the test disconnects
# all additional sessions) = m
# 2. Starting with 5.1 we could also use
# SELECT COUNT(*) FROM information_schema.processlist
# I stay with "SHOW STATUS LIKE 'Threads_connected'" because this
# runs in all versions 5.0+
#
#
# USAGE
@ -19,7 +28,7 @@
#
# OR typical example of a test which uses more than one session
# Such a test could harm successing tests if there is no server shutdown
# and start between.cw
# and start between.
#
# If the testing box is slow than the disconnect of sessions belonging to
# the current test might happen when the successing test gets executed.
@ -79,7 +88,11 @@
# backup.test, grant3.test
#
#
# Created: 2009-01-14 mleich
# Created:
# 2009-01-14 mleich
# Modified:
# 2009-02-24 mleich Fix Bug#43114 wait_until_count_sessions too restrictive,
# random PB failures
#
let $wait_counter= 100;
@ -93,7 +106,7 @@ let $wait_timeout= 0;
while ($wait_counter)
{
let $current_sessions= query_get_value(SHOW STATUS LIKE 'Threads_connected', Value, 1);
let $success= `SELECT $current_sessions = $count_sessions`;
let $success= `SELECT $current_sessions <= $count_sessions`;
if ($success)
{
let $wait_counter= 0;
@ -107,7 +120,7 @@ while ($wait_counter)
if (!$success)
{
--echo # Timeout in wait_until_count_sessions.inc
--echo # Number of sessions expected: $count_sessions found: $current_sessions
--echo # Number of sessions expected: < $count_sessions found: $current_sessions
SHOW PROCESSLIST;
}