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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:00:34 +0000
commit3f619478f796eddbba6e39502fe941b285dd97b1 (patch)
treee2c7b5777f728320e5b5542b6213fd3591ba51e2 /mysql-test/suite/stress/include/ddl1.inc
parentInitial commit. (diff)
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Adding upstream version 1:10.11.6.upstream/1%10.11.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+######## include/ddl1.inc ######
+#
+# Purpose of include/ddl1.inc - include/ddl8.inc:
+#
+# Stress storage engines with rapid CREATE/DROP TABLE/INDEX
+# and following SELECT/INSERT/SHOW etc.
+#
+# The variables
+# $loop_size -- number of rounds till we look at the clock again
+# $runtime -- rough intended runtime per subtest variant
+# Real runtime without server restarts and comparison is:
+# - >= $runtime
+# - > runtime needed for $loop_size execution loops
+# $engine_type -- storage engine to be used in CREATE TABLE
+# must be set within the routine sourcing this script.
+#
+# Other stuff which must already exist:
+# - connection con2
+# - stmt_start and stmt_break prepared by the default connection
+#
+# Attention:
+# The test does suppress the writing of most statements, server error
+# messages and result sets.
+# This is needed because their number is usual not deterministic.
+# The test is partially self checking. That means is prints some
+# helpful hints into the protocol and aborts if something is wrong.
+#
+# Creation of this test:
+# 2007-07-04 mleich
+#
+############################################################################
+#
+# Some details:
+#
+# 1. Base question of the test:
+# There was just a create or drop of some object (TABLE/INDEX).
+#
+# Could it happen that the next statement referring to this
+# object gets a somehow wrong server response (result set,
+# error message, warning) because the creation or removal of
+# the object is in an incomplete state?
+#
+# Thinkable reasons for incomplete state of creation or removal:
+# The server performs the creation or removal
+# - all time incomplete.
+# Example:
+# Bug#28309 First insert violates unique constraint
+# - was "memory" table empty ?
+# - asynchronous
+# In that case the next statement has probably to wait till
+# completion.
+#
+# 2. Why do we use in some scripts "--error 0,<expected error>" followed
+# a check of $mysql_errno?
+#
+# System reactions when running with "--error 0,<expected error>":
+# - RC=0 --> no error message
+# - RC=<expected error> --> no error message
+# - RC not in (0,<expected error>) --> error message + abort of script
+# execution
+#
+# Requirements and tricky solution for statements which are expected
+# to fail:
+# 1. RC=<expected error>
+# - no abort of script execution
+# --> add "--error <expected error>"
+# - no error message into the protocol, because the number of
+# executions is NOT deterministic
+# --> use "--error 0,<expected error>"
+# 2. RC=0 = failure
+# - abort of script execution
+# "--error 0,<expected error>" prevents the automatic abort of
+# execution. Therefore we do not need to code the abort.
+# --> Check $mysql_errno and do an explicit abort if $mysql_errno = 0.
+# 3. RC not in (0,<expected error>)
+# - abort of script execution
+# "--error 0,<expected error>" causes an automatic abort.
+#
+# 3. We do not check the correctness of the SHOW CREATE TABLE output
+# in detail. This must be done within other tests.
+# We only check here that
+# - same CREATE TABLE/INDEX statements lead to the same
+# - different CREATE TABLE/INDEX statements lead to different
+# SHOW CREATE TABLE output
+# (Applies to ddl4.inc. and ddl8.inc.)
+#
+# 4. It could be assumed that running this test with
+# - PS-PROTOCOL
+# There are already subtests using prepared statements contained.
+# - SP/CURSOR/VIEW-PROTOCOL
+# These protocol variants transform SELECTs to hopefully much
+# stressing statement sequencies using SP/CURSOR/VIEW.
+# The SELECTs within include/ddl*.inc are very simple.
+# does not increase the coverage.
+# Therefore we skip runs with these protocols.
+#
+# 5. The test consumes significant runtime when running on a non RAM
+# based filesystem (run without "--mem").
+# Therefore we adjust $runtime and $loop_size depending on "--big-test"
+# option.
+# $runtime and $loop_size do not influence the expected results.
+# Rough runtime in seconds reported by mysql-test-run.pl:
+# (engine_type = MEMORY)
+# option set -> $runtime $loop_size real runtime in seconds
+# 1 20 68
+# --mem 1 20 32
+# --big-test 5 100 200
+# --mem --big-test 5 100 400
+# I assume that runs with slow filesystems are as much valuable
+# as runs with extreme fast filesystems.
+#
+# 6. Hints for analysis of test failures:
+# 1. Look into the protocol and check in which ddl*.inc
+# script the difference to the expected result occurred.
+# 2. Comment the sourcing of all other ddl*.inc scripts
+# out.
+# 3. Edit the ddl*.inc script where the error occurred and
+# remove all
+# - "--disable_query_log", "--disable_result_log"
+# - successful passed subtests.
+# 4. Alternative:
+# Have a look into VARDIR/master-data/mysql/general_log.CSV
+# and construct a new testcase from that.
+# 5. If the problem is not deterministic, please try the following
+# - increase $runtime (important), $loop_size (most probably
+# less important) within the "t/ddl_<engine>.test" and
+# maybe the "--testcase-timeout" assigned to mysqltest-run.pl
+# - vary the I/O performance of the testing machine by using
+# a RAM or disk based filesystem for VARDIR
+#
+
+
+#----------------------------------------------------------------------
+# Settings for Subtest 1 variants
+# Scenario: CREATE with UNIQUE KEY/INSERT/DROP TABLE like in Bug#28309
+let $create_table= CREATE TABLE t1 (f1 BIGINT,f2 BIGINT,UNIQUE(f1),UNIQUE(f2))
+ENGINE = $engine_type;
+let $insert_into= INSERT INTO t1 VALUES (1,1), (2,2), (3,3);
+let $drop_table= DROP TABLE t1;
+#----------------------------------------------------------------------
+
+#
+--echo # Subtest 1A (one connection, no PREPARE/EXECUTE)
+--echo # connection action
+--echo # default: $create_table
+--echo # default: $insert_into
+--echo # default: $drop_table
+--disable_query_log
+connection default;
+let $run= 1;
+# Determine the current time.
+EXECUTE stmt_start;
+# Run execution loops till the planned runtime is reached
+while ($run)
+{
+ let $loop_run= $loop_size;
+ while ($loop_run)
+ {
+ eval $create_table;
+ eval $insert_into;
+ eval $drop_table;
+ dec $loop_run;
+ }
+ if (`EXECUTE stmt_break`)
+ {
+ let $run= 0;
+ }
+}
+--enable_query_log
+#
+--echo # Subtest 1B (one connection, use PREPARE/EXECUTE)
+--echo # connection action
+--echo # default: $create_table
+--echo # default: $insert_into
+--echo # default: $drop_table
+--disable_query_log
+connection default;
+eval PREPARE create_table FROM "$create_table";
+EXECUTE create_table;
+eval PREPARE insert_into FROM "$insert_into";
+eval PREPARE drop_table FROM "$drop_table";
+EXECUTE drop_table;
+let $run= 1;
+# Determine the current time.
+EXECUTE stmt_start;
+# Run execution loops till the planned runtime is reached
+while ($run)
+{
+ let $loop_run= $loop_size;
+ while ($loop_run)
+ {
+ EXECUTE create_table;
+ EXECUTE insert_into;
+ EXECUTE drop_table;
+ dec $loop_run;
+ }
+ if (`EXECUTE stmt_break`)
+ {
+ let $run= 0;
+ }
+}
+DEALLOCATE PREPARE create_table;
+DEALLOCATE PREPARE insert_into;
+DEALLOCATE PREPARE drop_table;
+--enable_query_log
+#
+--echo # Subtest 1C (two connections, no PREPARE/EXECUTE)
+--echo # connection action
+--echo # default: $create_table
+--echo # con2: $insert_into
+--echo # con2: $drop_table
+--disable_query_log
+connection default;
+let $run= 1;
+# Determine the current time.
+EXECUTE stmt_start;
+# Run execution loops till the planned runtime is reached
+while ($run)
+{
+ let $loop_run= $loop_size;
+ while ($loop_run)
+ {
+ eval $create_table;
+ connection con2;
+ eval $insert_into;
+ eval $drop_table;
+ connection default;
+ dec $loop_run;
+ }
+ if (`EXECUTE stmt_break`)
+ {
+ let $run= 0;
+ }
+}
+--enable_query_log
+#
+--echo # Subtest 1D (two connections, use PREPARE/EXECUTE)
+--echo # connection action
+--echo # default: $create_table
+--echo # con2: $insert_into
+--echo # con2: $drop_table
+--disable_query_log
+connection default;
+eval PREPARE create_table FROM "$create_table";
+EXECUTE create_table;
+connection con2;
+eval PREPARE insert_into FROM "$insert_into";
+eval PREPARE drop_table FROM "$drop_table";
+EXECUTE drop_table;
+connection default;
+let $run= 1;
+# Determine the current time.
+EXECUTE stmt_start;
+# Run execution loops till the planned runtime is reached
+while ($run)
+{
+ let $loop_run= $loop_size;
+ while ($loop_run)
+ {
+ EXECUTE create_table;
+ connection con2;
+ EXECUTE insert_into;
+ EXECUTE drop_table;
+ connection default;
+ dec $loop_run;
+ }
+ if (`EXECUTE stmt_break`)
+ {
+ let $run= 0;
+ }
+}
+DEALLOCATE PREPARE create_table;
+connection con2;
+DEALLOCATE PREPARE insert_into;
+DEALLOCATE PREPARE drop_table;
+connection default;
+--enable_query_log