MySQL 4.1
and Bug#16920 rpl_deadlock_innodb fails in show slave status (reported for MySQL 5.1)
- backport of several fixes done in MySQL 5.0 to 4.1
- fix for new discovered instability (see comment on Bug#12429 + Bug#16920)
- reenabling of testcases
mysql-test/r/rpl_deadlock.result:
Updated results
mysql-test/r/rpl_relayrotate.result:
Updated results
mysql-test/t/disabled.def:
Reenabling of tests
mysql-test/t/rpl_deadlock.test:
- replace sleep with real_sleep (backport fix for Bug#15624 MySQL 5.0)
- egalized value for Slave_IO_Running
- line 105 (backport fix for Bug#12429 MySQL 5.0)
- line 85 (see comment in Bug#12429
+ Bug#16920 rpl_deadlock_innodb fails in show slave status)
- improve readability of show slave status output (--vertical_results)
mysql-test/t/rpl_relayrotate.test:
- Replace select ... with select max(a)
- add sync_with_master (backport fix done by Kristian in MySQL 5.0 because of timing
problems similar to Bug#15624)
mysql-test/t/rpl_until.test:
Add wait_for_slave_to_stop like in the current MySQL 5.0 version of this test.
I assume this makes the test results more predictable.
end of the test, causing subsequent tests to fail.
mysql-test/r/rpl_deadlock.result:
Result change.
mysql-test/t/rpl_deadlock.test:
Tables used in the test but not dropped.
s/sleep/safe_sleep (thread safe); sleep 0/1/2/3/4/5/5/5 (get slave less late);
no message on error log (deadlock is too common sometimes), a global counter
instead (SHOW STATUS LIKE 'slave_retried_transactions').
Plus a fix for libmysql/Makefile.shared
libmysql/Makefile.shared:
When we "make clean" in libmysql/ we remove the symlinks there, so we
need to mark that they have to be recreated later: this is done by removing
../linked_libmysql_sources. If we don't do this, 'make' will fail after 'cd libmysql;make clean'.
This Makefile.shared is used by libmysql_r too.
No reason to remove linked_client_sources as we don't remove the links in client/.
mysql-test/r/rpl_deadlock.result:
result fix
mysql-test/t/rpl_deadlock.test:
small test addition
sql/mysqld.cc:
if active_mi could not be alloced, die. New SHOW STATUS LIKE "slave_retried_transactions".
sql/slave.cc:
If slave retries automatically a transaction, no message on error log
(too common situation); sleep 0 secs at first retry, then 1, 2, 3, 4,
5, 5, 5... Sleeping 0 is to get the least possible late, as deadlocks
are usually resolved at first try. New global counter rli->retried_trans
(for SHOW STATUS: total number of times the slave had to retry
any transaction). safe_sleep() is thread-safe, sleep() was not.
I change the rli->trans_retries counter to go from 0 to max instead
of the other way (better for new sleep()).
sql/slave.h:
new global counter rli->retried_trans
sql/sql_show.cc:
SHOW STATUS LIKE "slave_retried_transactions"; needs replication mutexes.
Can't be a simple SHOW_LONG, because active_mi is unset (not alloced yet)
when the static global status_vars is created (active_mi is set
in init_slave()).
sql/structs.h:
new SHOW_SLAVE_RETRIED_TRANS
BitKeeper/etc/logging_ok:
Logging to logging@openlogging.org accepted
in slave SQL thread: if a transaction fails because of InnoDB deadlock or innodb_lock_wait_timeout exceeded,
optionally retry the transaction a certain number of times (new variable --slave_transaction_retries).
sql/mysql_priv.h:
new var slave_transaction_retries
sql/mysqld.cc:
new variable slave_transaction_retries. Plus fixing a typo.
sql/set_var.cc:
new global variable slave_transaction_retries (will be one per subslave, when we have multimaster).
sql/slave.cc:
Slave SQL thread: if a transaction fails because of InnoDB deadlock or innodb_lock_wait_timeout exceeded,
optionally retry the transaction a certain number of times (--slave_transaction_retries).
sql/slave.h:
new RELAY_LOG_INFO::trans_retries.
