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############################################################################### # 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