Row-based replication requires the types of columns on the
master and slave to be approximately the same (some safe
conversions between strings are allowed), but does not
allow safe conversions between fields of similar types such
as TINYINT and INT.
This patch implement type conversions between similar fields
on the master and slave.
The conversions are controlled using a new variable
SLAVE_TYPE_CONVERSIONS of type SET('ALL_LOSSY','ALL_NON_LOSSY').
Non-lossy conversions are any conversions that do not run the
risk of losing any information, while lossy conversions can
potentially truncate the value. The column definitions are
checked to decide if the conversion is acceptable.
If neither conversion is enabled, it is required that the
definitions of the columns are identical on master and slave.
Conversion is done by creating an internal conversion table,
unpacking the master data into it, and then copy the data to
the real table on the slave.
This fix changes the character set used within the
IBMDB2I handler to hash table names to information
about open tables. Previously, tables with names
that differed only in letter case would hash to the
same data structure. This caused incorrect behavior
or errors when two such tables were in use simultaneously.
{PROCEDURE|FUNCTION} FROM ...'
The master would hit an assertion when binary log was
active. This was due to the fact that the thread's diagnostics
area was being cleared before writing to the binlog,
independently of mysql_routine_grant returning an error or
not. When mysql_routine_grant was to return an error, the return
value and the diagnostics area contents would
mismatch. Consequently, neither my_ok would be called nor an
error would be signaled in the diagnostics area, eventually
triggering the assertion in net_end_statement.
We fix this by not clearing the diagnostics area at binlogging
time.
escaped field names
When in mixed or statement mode, the master logs LOAD DATA
queries by resorting to an Execute_load_query_log_event. This
event does not contain the original query, but a rewritten
version of it, which includes the table field names. However, the
rewrite does not escape the field names. If these names match a
reserved keyword, then the slave will stop with a syntax error
when executing the event.
We fix this by escaping the fields names as it happens already
for the table name.
This patch fixes three bugs as follows. First, aborting the server while purging
binary logs might generate orphan files due to how the purge operation was
implemented:
(purge routine - sql/log.cc - MYSQL_BIN_LOG::purge_logs)
1 - register the files to be removed in a temporary buffer.
2 - update the log-bin.index.
3 - flush the log-bin.index.
4 - erase the files whose names where register in the temporary buffer
in step 1.
Thus a failure while executing step 4 would generate an orphan file. Second,
a similar issue might happen while creating a new binary as follows:
(create routine - sql/log.cc - MYSQL_BIN_LOG::open)
1 - open the new log-bin.
2 - update the log-bin.index.
Thus a failure while executing step 1 would generate an orphan file.
To fix these issues, we record the files to be purged or created before really
removing or adding them. So if a failure happens such records can be used to
automatically remove dangling files. The new steps might be outlined as follows:
(purge routine - sql/log.cc - MYSQL_BIN_LOG::purge_logs)
1 - register the files to be removed in the log-bin.~rec~ placed in
the data directory.
2 - update the log-bin.index.
3 - flush the log-bin.index.
4 - delete the log-bin.~rec~.
(create routine - sql/log.cc - MYSQL_BIN_LOG::open)
1 - register the file to be created in the log-bin.~rec~
placed in the data directory.
2 - open the new log-bin.
3 - update the log-bin.index.
4 - delete the log-bin.~rec~.
(recovery routine - sql/log.cc - MYSQL_BIN_LOG::open_index_file)
1 - open the log-bin.index.
2 - open the log-bin.~rec~.
3 - for each file in log-bin.~rec~.
3.1 Check if the file is in the log-bin.index and if so ignore it.
3.2 Otherwise, delete it.
The third issue can be described as follows. The purge operation was allowing
to remove a file in use thus leading to the loss of data and possible
inconsistencies between the master and slave. Roughly, the routine was only
taking into account the dump threads and so if a slave was not connect the
file might be delete even though it was in use.
Before this patch, semisync assumed transactions running in parallel
can not be larger than max_connections, but this is not true when
the event scheduler is executing events, and cause semisync run out
of preallocated transaction nodes.
Fix the problem by allocating transaction nodes dynamically.
This patch also fixed a possible deadlock when running UNINSTALL
PLUGIN rpl_semi_sync_master and updating in parallel. Fixed by
releasing the internal Delegate lock before unlock the plugins.
Support for flushing individual logs, so that the user can
selectively flush a subset of the server logs.
Flush of individual logs is done according to the
following syntax:
FLUSH <log_category> LOGS;
The syntax is extended so that the user is able to flush a
subset of logs:
FLUSH [log_category LOGS,];
where log_category is one of:
SLOW
ERROR
BINARY
ENGINE
GENERAL
RELAY.
Text conflict in mysql-test/collections/default.experimental
Text conflict in mysql-test/r/show_check.result
Text conflict in mysql-test/r/sp-code.result
Text conflict in mysql-test/suite/binlog/r/binlog_tmp_table.result
Text conflict in mysql-test/suite/rpl/t/disabled.def
Text conflict in mysql-test/t/show_check.test
Text conflict in mysys/my_delete.c
Text conflict in sql/item.h
Text conflict in sql/item_cmpfunc.h
Text conflict in sql/log.cc
Text conflict in sql/mysqld.cc
Text conflict in sql/repl_failsafe.cc
Text conflict in sql/slave.cc
Text conflict in sql/sql_parse.cc
Text conflict in sql/sql_table.cc
Text conflict in sql/sql_yacc.yy
Text conflict in storage/myisam/ha_myisam.cc
Corrected results for
stm_auto_increment_bug33029.reject 2009-12-01
20:01:49.000000000 +0300
<andrei> @@ -42,9 +42,6 @@
<andrei> RETURN i;
<andrei> END//
<andrei> CALL p1();
<andrei> -Warnings:
<andrei> -Note 1592 Statement may not be safe to log in statement
format.
<andrei> -Note 1592 Statement may not be safe to log in statement
format.
There should be indeed no Note present because there is in fact autoincrement
top-level query in sp() that triggers inserting in yet another auto-inc table.
(todo: alert DaoGang to improve the test).
Fixes several test cases.
applied revisions: r6181, r6182, r6183, r6184
r6183 - changes are made only to tests in innodb suite which is only
innodb-consistent-master.opt
Detailed revision comments:
r6181 | vasil | 2009-11-17 12:21:41 +0200 (Tue, 17 Nov 2009) | 33 lines
branches/zip:
At the end of innodb-index.test: restore the environment as it was before
the test was started to silence this warning:
MTR's internal check of the test case 'main.innodb-index' failed.
This means that the test case does not preserve the state that existed
before the test case was executed. Most likely the test case did not
do a proper clean-up.
This is the diff of the states of the servers before and after the
test case was executed:
mysqltest: Logging to '/tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.log'.
mysqltest: Results saved in '/tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.result'.
mysqltest: Connecting to server localhost:13000 (socket /tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/mysqld.1.sock) as 'root', connection 'default', attempt 0 ...
mysqltest: ... Connected.
mysqltest: Start processing test commands from './include/check-testcase.test' ...
mysqltest: ... Done processing test commands.
--- /tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.result 2009-11-17 13:10:40.000000000 +0300
+++ /tmp/autotest.sh-20091117_033000-zip.btyZwu/mysql-5.1/mysql-test/var/tmp/check-mysqld_1.reject 2009-11-17 13:10:54.000000000 +0300
@@ -84,7 +84,7 @@
INNODB_DOUBLEWRITE ON
INNODB_FAST_SHUTDOWN 1
INNODB_FILE_FORMAT Antelope
-INNODB_FILE_FORMAT_CHECK Antelope
+INNODB_FILE_FORMAT_CHECK Barracuda
INNODB_FILE_PER_TABLE OFF
INNODB_FLUSH_LOG_AT_TRX_COMMIT 1
INNODB_FLUSH_METHOD
mysqltest: Result content mismatch
not ok
r6182 | marko | 2009-11-17 13:49:15 +0200 (Tue, 17 Nov 2009) | 1 line
branches/zip: Set svn:eol-style on mysql-test files.
r6183 | marko | 2009-11-17 13:51:16 +0200 (Tue, 17 Nov 2009) | 1 line
branches/zip: Prepend loose_ to plugin-only mysql-test options.
r6184 | marko | 2009-11-17 13:52:01 +0200 (Tue, 17 Nov 2009) | 1 line
branches/zip: innodb-index.test: Restore innodb_file_format_check.
1. add testcase for BUG#46676
2. Allow CREATE INDEX to be interrupted
3. ha_innobase::change_active_index(): When the history is
missing, report it to the client, not to the error log
4. ChangeLog entries
appplied revisions:r6169, r6170, r6175, r6177, r6179
Detailed revision comments:
r6169 | calvin | 2009-11-12 14:40:43 +0200 (Thu, 12 Nov 2009) | 6 lines
branches/zip: add test case for bug#46676
This crash is reproducible with InnoDB plugin 1.0.4 + MySQL 5.1.37.
But no longer reproducible after MySQL 5.1.38 (with plugin 1.0.5).
Add test case to catch future regression.
r6170 | marko | 2009-11-12 15:49:08 +0200 (Thu, 12 Nov 2009) | 4 lines
branches/zip: Allow CREATE INDEX to be interrupted. (Issue #354)
rb://183 approved by Heikki Tuuri
r6175 | vasil | 2009-11-16 20:07:39 +0200 (Mon, 16 Nov 2009) | 4 lines
branches/zip:
Wrap line at 78th char in the ChangeLog
r6177 | calvin | 2009-11-16 20:20:38 +0200 (Mon, 16 Nov 2009) | 2 lines
branches/zip: add an entry to ChangeLog for r6065
r6179 | marko | 2009-11-17 10:19:34 +0200 (Tue, 17 Nov 2009) | 2 lines
branches/zip: ha_innobase::change_active_index(): When the history is
missing, report it to the client, not to the error log.
applied revisions: r6157
Detailed revision comments:
r6157 | jyang | 2009-11-11 14:27:09 +0200 (Wed, 11 Nov 2009) | 10 lines
branches/zip: Fix an issue that a local variable defined
in innodb_file_format_check_validate() is being referenced
across function in innodb_file_format_check_update().
In addition, fix "set global innodb_file_format_check =
DEFAULT" call.
Bug #47167: "set global innodb_file_format_check" cannot
set value by User-Defined Variable."
rb://169 approved by Sunny Bains and Marko.
The 'slave_patternload_file' is assigned to the real path of the load data file
when initializing the object of Relay_log_info. But the path of the load data
file is not formatted to real path when executing event from relay log. So the
error will be encountered if the path of the load data file is a symbolic link.
Actually the global 'opt_secure_file_priv' is not formatted to real path when
loading data from file. So the same thing will happen too.
To fix these errors, the path of the load data file should be formatted to
real path when executing event from relay log. And the 'opt_secure_file_priv'
should be formatted to real path when loading data infile.
<tmp_tbl> with RBL
When binlogging the statement, the server always handle the existing
object as a table, even though it is a view. However a view is
handled differently in other parts of the code thus leading the
statement to crash in RBL if the view exists.
This happens because the underlying tables for the view are not opened
when we try to call store_create_info() on the view in order to build
a CREATE TABLE statement.
This patch will only address the crash problem, other binlogging
problems related to CREATE TABLE IF NOT EXISTS LIKE when the existing
object is a view will be solved by BUG 47442.
