"CHANGE MASTER makes SQL thread restart from coordinates of I/O thread".
So, in CHANGE MASTER:
when it seems reasonable that the user did not want to discontinue
its replication (i.e. when he is not specifying host or port or master_log_file
or master_log_pos; this will be documented), set the coordinates of the
I/O thread to those of the SQL thread. This way, the SQL thread will see
no discontinuity in the relay log (i.e. will skip no events), because
the I/O thread will fill the brand new relay log with the events which
are just after the position where the SQL thread had stopped
(before CHANGE MASTER was issued).
And a new test for this bug.
mysql-test/r/rpl_loaddata.result:
Now, after CHANGE MASTER the coordinates of the I/O thread are the last ones of the SQL thread, so result update.
sql/sql_repl.cc:
Fix for BUG#1870
"CHANGE MASTER makes SQL thread restart from coordinates of I/O thread".
So, in CHANGE MASTER:
when it seems reasonable that the user did not want to discontinue
its replication (i.e. when he is not specifying host or port or master_log_file
or master_log_pos; this will be documented), set the coordinates of the
I/O thread to those of the SQL thread. This way, the SQL thread will see
no discontinuity in the relay log (i.e. will skip no events), because
the I/O thread will fill the brand new relay log with the events which
are just after the position where the SQL thread had stopped
(before CHANGE MASTER was issued).
rli->save_temporary_tables and slave_open_temp_tables
(in old 4.0 you could make "SHOW STATUS LIKE 'slave_open_temp_tables'" grow
indefinitely by doing RESET SLAVE and replicating always the same CREATE
TEMPORARY TABLE).
It's critical to reset save_temporary_tables to 0 (otherwise you may later
read memory which has been freed) so this changeset should go into 4.1.
mysql-test/r/rpl_reset_slave.result:
result update
mysql-test/t/rpl_reset_slave.test:
test for RESET SLAVE and creating twice the same temp table in the slave.
sql/slave.cc:
when we delete the slave's temp tables (when slave server shuts down and when
RESET SLAVE), we reset 2 variables: rli->save_temporary_tables & slave_open_temp_tables.
has changed since 4.0.14'
We need to calculate cost of RANGE
scan if it is present instead of cost of
FULL scan.
mysql-test/r/order_by.result:
more accurate row estimation
for RANGE scan
mysql-test/r/range.result:
added test case for bug #1724
'WHERE ... IN() optimizer behaviour has changed since 4.0.14'
mysql-test/r/select.result:
please ignore
mysql-test/t/range.test:
added test case for bug #1724
'WHERE ... IN() optimizer behaviour has changed since 4.0.14'
sql/sql_select.cc:
fix for bug #1724 'WHERE ... IN() optimizer behaviour
has changed since 4.0.14'
We need to calculate cost of RANGE
scan instead of cost of FULL scan
if RANGE is present
Few comments cleaned up.
Added my_sync() to mysys which will do fsync/fdatasync/_commit() on a file.
VC++Files/mysys/mysys.dsp:
Added my_sync.c
configure.in:
Added testing of fsync and fdatasync
include/my_sys.h:
Added my_sync()
include/mysys_err.h:
Added my_sync()
isam/extra.c:
Added my_sync()
myisam/mi_extra.c:
Added my_sync()
myisam/mi_locking.c:
Added my_sync()
mysql-test/mysql-test-run.sh:
Added option --valgrind-all
mysys/Makefile.am:
Added my_sync.c
mysys/errors.c:
Added my_sync()
mysys/my_symlink.c:
Removed compiler warning
mysys/thr_alarm.c:
Fix for link error on windows
sql/unireg.cc:
Call my_sync() after all data is written to .frm file
BitKeeper/etc/logging_ok:
Logging to logging@openlogging.org accepted
- when we don't have in_addr_t, use uint32.
- a forgotten initialization of slave_proxy_id in sql/log_event.cc (was not really "forgot", was
"we needn't init it there", but there was one case where we needed...).
- made slave_proxy_id always meaningful in THD and Log_event, so we can
rely more on it (no need to test if it's meaningful). THD::slave_proxy_id
is equal to THD::thread_id except for the slave SQL thread.
- clean up the slave's temporary table (i.e. free their memory) when slave
server shuts down.
extra/resolveip.c:
removed #define as it is simpler to put it in my_net.h
(because we need the #define elsewhere)
include/my_net.h:
When in_addr_t is not defined, use uint32.
libmysql/libmysql.c:
using in_addr_t is more generic.
libmysql/manager.c:
using in_addr_t is more generic.
mysql-test/t/rpl_chain_temp_table.test:
comments
sql/log_event.cc:
* Had forgot to initialize slave_proxy_id in the event constructor (char* buf...).
Initializing is in fact only needed for Create_file_log_event, because
it uses slave_proxy_id even if it does not write an event to the binlog
(it uses slave_proxy_id to write it to SQL-LOAD.info).
* When we write events we now always write slave_proxy_id, which is now always
meaningful (as thd->slave_proxy_id is now always meaningful, see change in
sql_class.cc).
sql/mini_client.cc:
in_addr_t is more generic.
sql/slave.cc:
A RELAY_LOG_INFO method to free the slave's temporary tables from memory
at slave's server shutdown.
It is called by end_slave(), which is called by close_connections(),
which is called when the server terminates
(close_connections() is just before clean_up(); putting the call in
clean_up() was buggy, as active_mi is already deleted by close_connections().
sql/slave.h:
new method
sql/sql_class.cc:
By default we set THD::slave_proxy_id to THD::thread_id,
so THD::slave_proxy_id is always meaningful (not 0).
It's always the same as the thread id except for the slave
SQL thread.
mysql-test-run --manager --valgrind
(without this fix, the manager fails to start mysqld and the tests hang).
mysql-test/mysql-test-run.sh:
When running with --manager: the MySQL manager wants the complete path of the
executable (it uses execv(), not execvp(), so does not search in the $PATH,
so telling him to start 'valgrind' is not enough, it wants '/usr/bin/valgrind'
or so).
So this is a fix to be able to
mysql-test-run --manager --valgrind
Plus a warning (previously, if valgrind was not installed, tests silently
hanged when run with --valgrind).
"If 2 master threads with same-name temp table, slave makes bad binlog"
and (two birds with one stone) for
BUG#1240 "slave of slave breaks when STOP SLAVE was issud on parent slave
and temp tables".
Here is the design change:
in a slave running with --log-slave-updates, events are now logged with the
thread id they had on the master. So no more id conflicts between master threads,
but introduces id conflicts between one master thread and one normal
client thread connected to the slave. This is solved by storing the server id
in the temp table's name.
New test which requires mysql-test-run to be run with --manager,
otherwise it will be skipped.
Undoing a Monty's change (hum, a chill runs down my spine ;) which was
"Cleanup temporary tables when slave ends" in ChangeSet 1.1572.1.1.
mysql-test/mysql-test-run.sh:
One new test which needs more than one slave so must be hardcoded in mysql-test-run.sh.
sql/log_event.cc:
The event needs to carry a slave_proxy_id (which is set at event's creation
and used at event's logging).
This is used for events created by ::exec_event() in the slave SQL thread:
now we want to log these events with the thread id they had on the master.
This is so that several same-name temp tables simultaneously created on
the master end up with not the same thread id in the slave's binlog.
sql/log_event.h:
Query and Load need to carry a slave_proxy_id, like they carried a thread_id
(to replicate temp tables well).
sql/slave.cc:
Do not free temp tables in the slave SQL thread. Or they will be lost when
one does STOP SLAVE / START SLAVE.
We even save them in rli->save_temporary_tables and set thd->temporary_tables=0
to prevent them to be freed.
sql/sql_base.cc:
Put the server id in the table cache key name for temp tables
(we already put the slave_proxy_id, but we also need the server id
in case normal clients (not slave threads) are using temp tables
on the slave).
sql/unireg.h:
4 more bytes, to store the server id.
BitKeeper/etc/logging_ok:
auto-union
sql/mini_client.cc:
Auto merged
client/mysqlbinlog.cc:
use local file
mysql-test/t/myisam.test:
Remove uncessesary drop table
sql/sql_parse.cc:
Use local
sql/sql_repl.cc:
use local
while the slave is connected.
mysql-test/t/rpl_trunc_binlog.test:
don't RESET MASTER while the slave is connected; this could confuse the master or slave.
(In replication you don't RESET MASTER while a slave is connected!)
sql/slave.cc:
typo
Fixed chsize() problem on windows
Extend default timeout on windows clients to 1 year (to avoid timeout problems)
include/mysql.h:
Added client timeouts (for TCP/IP)
libmysql/libmysql.c:
Added client timeouts (for TCP/IP)
mysql-test/r/create.result:
More tests for CREATE TABLE IF NOT EXISTS ... SELECT
mysql-test/t/create.test:
More tests for CREATE TABLE IF NOT EXISTS ... SELECT
mysys/my_chsize.c:
Fix for windows
sql/handler.h:
Remove not used field 'if_not_exists'
Ordered fields to be more optimized for new CPU's
Added field 'table_existed'
sql/slave.cc:
Cleanup temporary tables when slave ends
sql/sql_class.h:
Remove not used 'do_not_drop' field
sql/sql_insert.cc:
Better fix for CREATE TABLE IF NOT EXISTS ... SELECT
sql/sql_table.cc:
Better fix for CREATE TABLE IF NOT EXISTS ... SELECT
into mashka.mysql.fi:/home/my/mysql-4.0
sql/mysqld.cc:
Auto merged
sql/set_var.cc:
Auto merged
sql/sql_class.h:
Auto merged
sql/sql_parse.cc:
Auto merged
BitKeeper/etc/ignore:
added scripts/make_sharedlib_distribution
mysql-test/r/variables.result:
Add test for enum_system_variable=NULL
mysql-test/t/variables.test:
Add test for enum_system_variable=NULL
sql/set_var.cc:
Fixed bug in SET enum_system_variable=NULL
Moved some array elements to get result sorted
query_alloc_block_size, query_prealloc_size, range_alloc_block_size,transaction_alloc_block_size and transaction_prealloc_size
Add more checks for "out of memory" detection in range optimization
configure.in:
Added detection of mallinfo
mysql-test/r/variables.result:
Test of new variables
mysql-test/t/variables.test:
Test of new variables
sql/ha_berkeley.cc:
Use init_sql_alloc instead of init_alloc_root for better OOM detection
sql/log_event.cc:
Add new user variables for tuning memory usage
sql/mysql_priv.h:
Add new user variables for tuning memory usage
sql/mysqld.cc:
Add new user variables for tuning memory usage
sql/opt_ft.cc:
Add new user variables for tuning memory usage
sql/opt_ft.h:
Add new user variables for tuning memory usage
sql/opt_range.cc:
Add new user variables for tuning memory usage
Add more checks for out of memory conditions
sql/opt_range.h:
Add new user variables for tuning memory usage
sql/set_var.cc:
Add new user variables for tuning memory usage
sql/sql_acl.cc:
Add new user variables for tuning memory usage
sql/sql_class.h:
Add new user variables for tuning memory usage
sql/sql_delete.cc:
Add new user variables for tuning memory usage
sql/sql_parse.cc:
Add new user variables for tuning memory usage
sql/sql_select.cc:
Add new user variables for tuning memory usage
sql/sql_test.cc:
Add information about memory useage if system supports mallinfo()
sql/sql_udf.cc:
Add new user variables for tuning memory usage
sql/sql_update.cc:
Add new user variables for tuning memory usage
sql/table.cc:
Add new user variables for tuning memory usage
Changed --remote to --read-from-remote-server (mysqlbinlog)
client/mysqlbinlog.cc:
Changed --remote to --read-from-remote-server to make option more understandable
mysql-test/t/mysqlbinlog.test:
Fixed test case that --remote broke
Rotate_log_event::exec_event() believed that the relay log was corrupted. Fixed it
by moving the test for corruption to Start_log_event::exec_event().
Changed Rotate_log_event::exec_event() to not increment positions when the
event is seen in the middle of a transaction.
I did a separate commit in 4.1 (so this should not be merged to 4.0) because
code is a bit different in 4.1.
A test to see if the slave detects when the master died while writing a
transaction to the binlog (uses a forged truncated binlog I made).
sql/log_event.cc:
When the I/O thread was stopped while copying a long transaction, and restarted,
Rotate_log_event::exec_event() believed that the relay log was corrupted. Fixed it
by moving the test for corruption to Start_log_event::exec_event().
Changed Rotate_log_event::exec_event() to not increment positions when the
event is seen in the middle of a transaction.
Use forced close of socket to make mysqld shutdown faster when used under valgrind
mysql-test/mysql-test-run.sh:
Added --skip-bdb for valgrind
mysql-test/r/user_var.result:
Extended test for user variables
mysql-test/t/user_var.test:
Extended test for user variables
sql/item_func.cc:
Optimized code for setting user variables with := and fixed some bugs in old code
sql/item_func.h:
Optimized code for setting user variables
sql/log.cc:
Fixed comments
sql/mysqld.cc:
Use forced close of socket to make mysqld shutdown faster when used under valgrind
sql/sql_class.h:
Optimized code for setting user variables
