Current File : //usr/share/mysql-test/extra/rpl_tests/rpl_crash_safe.test
###############################################################################
# This test case aims at checking if a slave does not go out of sync after
# injecting crashes at specific points. The following scenarios are analyzed:
#
# Following table represents the outcomes when Rli are on table.
# |------------+-----------------------+---------+---------+---------+---------|
# | SCENARIO # | SCENARIO | CRASH-1 | CRASH-2 | CRASH-3 | CRASH-4 |
# |------------+-----------------------+---------+---------+---------+---------|
# | 1 | T | O1 | O1 | O2 | O2 |
# | 2 | T-* | O1 | O1 | O2 | O2 |
# | 3 | B T T-* C | O1 | O1 | O2 | O2 |
# | 4 | B T-* T C | O1 | O1 | O2 | O2 |
# | 5 | N | O3 | O3 | O2 | O3 |
# | 6 | N-* | O3 | O3 | O2 | O3 |
# |------------+-----------------------+---------+---------+---------+---------|
#
# Legend:
#
# . T - Updates transactional table by calling insert/update/delete.
#
# . N - Updates non-transactional by calling insert/update/delete.
#
# . T-* - Updates transactional table through a trigger, procedure or function
# by calling insert/update/delete.
#
# . N-* - Updates non-transactional table through a trigger or function
# by calling insert/update/delete.
#
# . B - Begin.
#
# . C - Commit.
#
# . R - Rollback.
#
# For those transactions involving only transactional tables, faults are
# injected while committing a transaction at the following points:
#
# CRASH-1 - crash_before_update_pos - before updating the positions.
# CRASH-2 - crash_after_update_pos_before_apply - after updating the positions
# but before committing the transaction.
# CRASH-3 - crash_after_apply - after updating the position and committing the
# transaction.
#
# When a non-transactional table is updated, faults are injected at one point:
#
# CRASH-3 - crash_after_commit_and_update_pos - after committing and updating
# the positions.
#
# CRASH-4 - crash_after_commit_before_update_pos - after committing and
# updating positions in (FILE).
#
# After injecting the faults, we expect the following outcomes:
#
# O1. In this case, the slave shall correctly recover to "S" without going out
# of sync and process "tx".
#
# O2. In this case, the slave shall correctly recover to "S'" without going
# out of sync.
#
# O3. In this case, the slave shall recover to "S''" and re-execute "tx".
# In this case, the SQL Thread may fail due to duplicate keys, if any, and
# most likely the slave will become inconsistent. The user should manually
# check the slave and resolve the problems.
#
# where
#
# . S represents a database's state.
#
# . tx represents a transaction ended by either "C" or "R".
#
# . S' represents a database's state after processing "tx" and seen by
# concurrent transactions.
#
# . S'' represents a database's state after partially processing "tx"
# seen by concurrent transactions.
#
# Note however that we do not inject faults that generate "O3" as we are only
# interested in the cases that the slave can automatically recover.
# See WL#4801 for further details.
################################################################################
--echo ###################################################################################
--echo # PREPARE EXECUTION
--echo ###################################################################################
connection master;
--let $verbose= 1
--let $commands= configure
--source extra/rpl_tests/rpl_crash_safe.inc
--echo ###################################################################################
--echo # EXECUTE CASES CRASHING THE XID
--echo ###################################################################################
connection master;
--let $failures= d,crash_after_apply d,crash_before_update_pos d,crash_after_update_pos_before_apply d,crash_after_commit_before_update_pos
#
# Executes a set of tests while there are crash points in $failures.
#
while ($failures != '')
{
#
# Gets a crash point from the set of crash points in $failures and
# stores it into $failure.
#
--let $failure= `SELECT SUBSTRING_INDEX('$failures', ' ', 1)`
--echo
--echo
--echo
--let $commands= T
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= T-trig
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= T-func
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= T-proc
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= B T T-trig C
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= B T T-func C
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= B T T-proc C
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= B T-trig T C
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= B T-func T C
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= B T-proc T C
--source extra/rpl_tests/rpl_crash_safe.inc
#
# Removes $failure from the set of crash points in $failures.
#
--let $failures= `SELECT LTRIM(SUBSTRING('$failures', LENGTH('$failure') + 1))`
}
--echo ###################################################################################
--echo # EXECUTE CASES CRASHING THE BEGIN/COMMIT
--echo ###################################################################################
--let $failures= d,crash_after_commit_and_update_pos
#
# Executes a set of tests while there are crash points in $failures.
#
while ($failures != '')
{
#
# Gets a crash point from the set of crash points in $failures and
# stores it into $failure.
#
--let $failure= `SELECT SUBSTRING_INDEX('$failures', ' ', 1)`
--echo
--echo
--echo
--let $commands= N
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= N-trig
--source extra/rpl_tests/rpl_crash_safe.inc
--echo
--echo
--echo
--let $commands= N-func
--source extra/rpl_tests/rpl_crash_safe.inc
#
# Removes $failure from the set of crash points in $failures.
#
--let $failures= `SELECT LTRIM(SUBSTRING('$failures', LENGTH('$failure') + 1))`
}
--echo ###################################################################################
--echo # CHECK CONSISTENCY
--echo ###################################################################################
connection master;
--source include/sync_slave_sql_with_master.inc
connection master;
let $MYSQLD_DATADIR= `SELECT @@datadir`;
--exec $MYSQL_DUMP --compact --order-by-primary --skip-extended-insert --set-gtid-purged=off --no-create-info test > $MYSQLD_DATADIR/test-crash-master.sql
--exec $MYSQL_DUMP_SLAVE --compact --order-by-primary --skip-extended-insert --set-gtid-purged=off --no-create-info test > $MYSQLD_DATADIR/test-crash-slave.sql
--diff_files $MYSQLD_DATADIR/test-crash-master.sql $MYSQLD_DATADIR/test-crash-slave.sql
--echo ###################################################################################
--echo # CLEAN
--echo ###################################################################################
connection master;
--let $commands= clean
--source extra/rpl_tests/rpl_crash_safe.inc
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