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Diffstat (limited to 'mysql-test/suite/stress/include/ddl1.inc')
| -rw-r--r-- | mysql-test/suite/stress/include/ddl1.inc | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/mysql-test/suite/stress/include/ddl1.inc b/mysql-test/suite/stress/include/ddl1.inc new file mode 100644 index 00000000..00e64cee --- /dev/null +++ b/mysql-test/suite/stress/include/ddl1.inc @@ -0,0 +1,277 @@ +######## 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 |