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1. Fix for Bug#41111 events_bugs fails sporadically on pushbuild

2. Avoid bad effects of bug 41925 Warning 1366 Incorrect string value:
                                  ...  for column processlist.info
3. Add poll routines which ensure that subtests meet stable scenarios.
   This does not change the sense of the subtests.
This commit is contained in:
Matthias Leich
2009-01-09 15:10:03 +01:00
parent 335e842d24
commit f0d1d53335
6 changed files with 337 additions and 67 deletions

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########## include/check_events_off.inc ####################################
# #
# Purpose: #
# Wait till we can expect that we have no event activity till the scheduler is #
# switched on again. #
# = There will be no modifications of user tables by existing events #
# except they use "INSERT DELAYED" or the server system variable #
# "concurrent_inserts" is not switched off. #
# Only some storage engines support concurrent_inserts" or "INSERT DELAYED". #
# #
# Creation: #
# 2008-12-19 mleich Implement this check needed for bug fixes in tests #
# #
################################################################################
# 1. Check that the server system variable shows the state needed
if (`SELECT @@global.event_scheduler <> 'OFF'`)
{
--echo # Error: We expect here that the event scheduler is switched off.
SELECT @@global.event_scheduler;
--echo # Thinkable reasons:
--echo # 1. SET GLOBAL event_scheduler = OFF had not the expected effect.
--echo # 2. Use of the current routine (include/check_events_off.inc)
--echo # within the wrong situation
--die
}
# 2. Wait till we have no event_scheduler session within the processlist
--source include/no_running_event_scheduler.inc
# 3. Wait till we have no event executor sessions within the processlist
--source include/no_running_events.inc

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########## include/no_running_event_scheduler.inc ##########################
# #
# Wait till the event scheduler disappeared from processlist. #
# #
# The characteristics of the event_scheduler entry within the processlist is #
# user = 'event_scheduler' and command = 'Daemon'. I am not 100% sure if #
# ther is no short phase with command <> 'Daemon'. #
# A query with WHERE user = 'event_scheduler' only will also catch events in #
# startup phase. This is no problem since this phase is very short. #
# #
# A wait_timeout of >= 3 seconds was within experiments sufficient even on a #
# testing box with heavy parallel load. Therefore 5 seconds should be enough. #
# #
# Creation: #
# 2008-12-19 mleich Implement this check needed for test bug fixes #
# #
################################################################################
let $wait_timeout= 5;
let $wait_condition=
SELECT COUNT(*) = 0 FROM information_schema.processlist
WHERE user = 'event_scheduler';
--source include/wait_condition.inc

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########## include/no_running_events.inc ###################################
# #
# Wait till all event executors have finished their work. #
# #
# Different event executors share the characteristics that their entry within #
# processlist contains command = 'Connect'. #
# Of course the corresponding query will also catch other connections being #
# within the connect phase. This is no problem since the connect phase is #
# usually very short. #
# #
# A wait_timeout of >= 3 seconds was during experiments in case of "simple" #
# SQL commands sufficient even on a testing box with heavy parallel load. #
# "simple" = no sleeps, no long running commands, no waiting for lock ... #
# We use here the default of 30 seconds because this wastes some time only in #
# case of unexpected situations. #
# #
# Creation: #
# 2008-12-19 mleich Implement this check needed for test bug fixes #
# #
################################################################################
let $wait_condition=
SELECT COUNT(*) = 0 FROM information_schema.processlist
WHERE command = 'Connect';
--source include/wait_condition.inc

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############# include/running_event_scheduler.inc ##########################
# #
# Wait till the event scheduler reached its final state within the processlist.#
# #
# The characteristics of the event_scheduler entry within the processlist is #
# user = 'event_scheduler' and command = 'Daemon'. I am not 100% sure if #
# ther is no short phase with command <> 'Daemon'. #
# A query with WHERE user = 'event_scheduler' only will also catch events in #
# startup phase. #
# #
# Creation: #
# 2008-12-19 mleich Implement this check needed for test bug fixes #
# #
################################################################################
# 1. Check that the server system variable shows the state needed
if (`SELECT @@global.event_scheduler <> 'ON'`)
{
--echo # Error: We expect here that the event scheduler is switched on.
SELECT @@global.event_scheduler;
--echo # Thinkable reasons:
--echo # 1. SET GLOBAL event_scheduler = ON had not the expected effect.
--echo # 2. Use of the current routine (include/running_event_scheduler.inc)
--echo # within the wrong situation
--die
}
let $wait_condition=
SELECT COUNT(*) = 1 FROM information_schema.processlist
WHERE user = 'event_scheduler' AND command = 'Daemon';
--source include/wait_condition.inc