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WL#2265 (RESIGNAL)
Manual merge of SIGNAL and RESIGNAL to mysql-trunk-signal,
plus required dependencies.
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Changes to ha_innodb.cc are not propagated to plugin, they will come back
via Oracle/Innobase if needed.
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- Define and pass compile time path variables as pre-processor definitions to
mimic the makefile build.
- Set new CMake version and policy requirements explicitly.
- Changed DATADIR to MYSQL_DATADIR to avoid conflicting definition in
Platform SDK header ObjIdl.h which also defines DATADIR.
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This patch is a follow up to http://lists.mysql.com/commits/76678.
When an allocation failure occurs for the buffer in the dynamic
array, an error condition was being set. The dynamic array is
usable even if the memory allocation fails. Since in most cases
the thread can continue to work without any problems the error
condition should not be set here.
This patch adds logic to remove the error condition from being set
when the memory allocation for the buffer in dynamic array fails.
mysys/array.c:
Bug#43572 Handle failures from hash_init
Remove the MY_WME flag from the call to malloc in order to
prevent the error status from being set in the init_dynamic_array
method. Since this memory allocation failure is no longer
fatal this method has been modified to return FALSE
(indicate success) irrespective of array->buffer being
allocated.
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bzr branch mysql-5.1-performance-version mysql-trunk # Summit
cd mysql-trunk
bzr merge mysql-5.1-innodb_plugin # which is 5.1 + Innodb plugin
bzr rm innobase # remove the builtin
Next step: build, test fixes.
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Because of a regression introduced by bug#19027 the option --enable-foobar
doesn't work anymore for any plugin 'foobar'. The reason is that plugin
names are tristate options variables with optional parameters and integer
values are not accepted. Since the 'enable' prefix attempts to assign '1'
to the option the operation fails.
This patch translates any number n assigned to a plugin variable of type ENUM
to be the corresponding enumerated item. As a side effect --enable-foobar and
--disable-foobar will also start working again.
mysys/my_getopt.c:
* setval now accepts integer values for option variables of type ENUM.
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The merge from http://lists.mysql.com/commits/76678 caused the
growth_size parameter to the my_init_dynamic_array function to
be ignored. This patch corrects the problem.
mysys/hash.c:
Bug#43572 Handle failures from hash_init
Replacing the last parameter to my_init_dynamic_array with
growth_size.
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Failure to allocate memory for the hash->array element,
caused hash_init to return without initializing the other
members of the hash. Thus although the dynamic array
buffer may be allocated at a later point in the code, the
incompletely initialized hash caused fatal failures.
This patch moves the initialization of the other members
of the hash above the array allocation, so that the usage
of this hash will not result in fatal failures.
include/hash.h:
Bug#43572 Handle failures from hash_init
hash_inited is used to verify that the hash is
valid. After the change induced by the current
patch hash->array.buffer !=0 is not a valid check
for this condition, since, the dynamic array can
be allocated even at a later time. Bootstrap SQL
script is setting some variables, which are
actually not set due to this hash_inited issue.
Thus we get empty grant tables.
A better way to check if the hash is valid is
to verify that hash->blength is greater than 0.
mysys/hash.c:
Bug#43572 Handle failures from hash_init
Move the initialization of the other members
of the hash above the array allocation, so that
the usage of this hash will not result in fatal
failures.
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Remove custom DLL loader code from innodb plugin code, use
symbols exported from mysqld.
storage/innodb_plugin/handler/ha_innodb.cc:
Remove a Win32 workaround for current_thd.
The original problem that innodb plugin used
value of TLS variable across DLL boundaries is
solved in MySQL server (current_thd is a function
not TLS variable now)
storage/innodb_plugin/handler/handler0alter.cc:
Remove custom delay loader
storage/innodb_plugin/handler/handler0vars.h:
Remove custom delay loader
storage/innodb_plugin/handler/i_s.cc:
Remove custom delay loader
storage/innodb_plugin/handler/win_delay_loader.cc:
Remove custom delay loader
storage/innodb_plugin/plug.in:
Remove commented out MYSQL_PLUGIN_STATIC,
CMake would not parse that correctly
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In order to define the --slave-load-tmpdir, the init_relay_log_file()
was calling fn_format(MY_PACK_FILENAME) which internally was indirectly
calling strmov_overlapp() (through pack_dirname) and the following
warning message was being printed out while running in Valgrind:
"source and destination overlap in strcpy".
We fixed the issue by removing the flag MY_PACK_FILENAME as it was not
necessary. In a nutshell, with this flag the function fn_format() tried
to replace a directory by either "~", "." or "..". However, we wanted
exactly to remove such strings.
In this patch, we also refactored the functions init_relay_log_file()
and check_temp_dir(). The former was refactored to call the fn_format()
with the flag MY_SAFE_PATH along with the MY_RETURN_REAL_PATH, in order
to avoid issues with long directories and return an absolute path,
respectively. The flag MY_SAFE_UNPACK_FILENAME was removed too as it was
responsible for removing "~", "." or ".." only from the file parameter
and we wanted to remove such strings from the directory parameter in
the fn_format(). This result is stored in an rli variable, which is then
processed by the other function in order to verify if the directory exists
and if we are able to create files in it.
mysql-test/suite/rpl/t/rpl_slave_load_tmpdir_not_exist.test:
Changed the output to make it consistent among different runs.
mysys/mf_format.c:
Replaced a return for DBUG_RETURN.
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It is not possible to prevent the server from starting if a mandatory
built-in plugin fails to start. This can in some cases lead to data
corruption when the old table name space suddenly is used by a different
storage engine.
A boolean command line option in the form of --foobar is automatically
created for every existing plugin "foobar". By changing this command line
option from a boolean to a tristate { OFF, ON, FORCE } it is possible to
specify the plugin loading policy for each plugin.
The behavior is specified as follows:
OFF = Disable the plugin and start the server
ON = Enable the plugin and start the server even if an error occurrs
during plugin initialization.
FORCE = Enable the plugin but don't start the server if an error occurrs
during plugin initialization.
mysql-test/lib/mtr_cases.pm:
* Changed --<pluginname> from a boolean to a tristate.
mysys/my_getopt.c:
* Changed --<pluginname> from boolean to tristate. Optional arguments
must still work for tristates. It is praxis that disable means value 0
and enable is value 1. Since plugin name is the only tristate with
optional arguments this principle will still hold.
sql/sql_plugin.cc:
* Changed --<pluginname> option from a boolean type to a tristate.
- FORCE will now terminate the server if the plugin fails to
initialize properly.
* Refactored prototypes for test_plugin_options() and construct_options()
to get rid of the 'enable' value pointer.
* Cleaned up code related to option name constructing.
* Added documentation
sql/sql_plugin.h:
* Introduced new member to st_plugin_int structure.
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backwards, which resulted in the incorrect time being reported at the
end of mysqldump. (Bug #44424, patch by Andrew Hutchings)
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165 changesets with 23 conflicts:
Text conflict in mysql-test/r/lock_multi.result
Text conflict in mysql-test/t/lock_multi.test
Text conflict in mysql-test/t/mysqldump.test
Text conflict in sql/item_strfunc.cc
Text conflict in sql/log.cc
Text conflict in sql/log_event.cc
Text conflict in sql/parse_file.cc
Text conflict in sql/slave.cc
Text conflict in sql/sp.cc
Text conflict in sql/sp_head.cc
Text conflict in sql/sql_acl.cc
Text conflict in sql/sql_base.cc
Text conflict in sql/sql_class.cc
Text conflict in sql/sql_crypt.cc
Text conflict in sql/sql_db.cc
Text conflict in sql/sql_lex.cc
Text conflict in sql/sql_parse.cc
Text conflict in sql/sql_select.cc
Text conflict in sql/sql_table.cc
Text conflict in sql/sql_view.cc
Text conflict in storage/innobase/handler/ha_innodb.cc
Text conflict in storage/myisam/mi_packrec.c
Text conflict in tests/mysql_client_test.c
Updates to Innobase, taken from main 5.1:
bzr: ERROR: Some change isn't sane:
File mysql-test/r/innodb-semi-consistent.result is owned by Innobase and should not be updated.
File mysql-test/t/innodb-semi-consistent.test is owned by Innobase and should not be updated.
File storage/innobase/handler/ha_innodb.cc is owned by Innobase and should not be updated.
File storage/innobase/ibuf/ibuf0ibuf.c is owned by Innobase and should not be updated.
File storage/innobase/include/row0mysql.h is owned by Innobase and should not be updated.
File storage/innobase/include/srv0srv.h is owned by Innobase and should not be updated.
File storage/innobase/include/trx0trx.h is owned by Innobase and should not be updated.
File storage/innobase/include/trx0trx.ic is owned by Innobase and should not be updated.
File storage/innobase/lock/lock0lock.c is owned by Innobase and should not be updated.
File storage/innobase/page/page0cur.c is owned by Innobase and should not be updated.
File storage/innobase/row/row0mysql.c is owned by Innobase and should not be updated.
File storage/innobase/row/row0sel.c is owned by Innobase and should not be updated.
File storage/innobase/srv/srv0srv.c is owned by Innobase and should not be updated.
File storage/innobase/trx/trx0trx.c is owned by Innobase and should not be updated.
(Set env var 'ALLOW_UPDATE_INNOBASE_OWNED' to override.)
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key_buffer_size.
The cause of corruption was number overflow when multiplying
two ulong values, number of used keycache blocks with size
of a single block. The result of multiplication exceeded ulong
range (4G) and this lead to incorrectly calculated buffer offset
in the key cache.
The fix is to use size_t for multiplication result.
This patch also fixes pointless cast in safemalloc
(size of allocated block to uint), that creates lot of false
alarm warnings when using big keycache (> 4GB) in debug mode.
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Bug#44091: libmysqld gets stuck waiting on mutex on initialization
The problem was that libmysqld wasn't enforcing a certain
initialization and deinitialization order for the mysys
library. Another problem was that the global object used
for management of log event handlers (aka LOGGER) wasn't
being prepared for a possible reutilization.
What leads to the hang/crash reported is that a failure
to load the language file triggers a double call of the
cleanup functions, causing an already destroyed mutex to
be used.
The solution is enforce a order on the initialization and
deinitialization of the mysys library within the libmysqld
library and to ensure that the global LOGGER object reset
it's internal state during cleanup.
mysys/my_init.c:
Deinitialize only if initialized already.
sql/log.cc:
Reset state.
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The patch was originally proposed by Mikael and reviewed by Bar.
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Don't compare string literals as it results in unspecified behavior.
mysys/default.c:
Test for a empty string.
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fix for 29125).
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patch enclosed)
One call to my_error_unregister_all() would free pointers, but leave one
pointer to just-freed memory still assigned. That's the bug. Subsequent
calls of this function would try to follow pointers into deallocated,
garbage memory and almost certainly SEGV.
Now, after freeing a linked list, unset the initial pointer.
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Replaced a call to load_defaults() in sql_plugin.cc with
its thread-safe version.
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in load_defaults()
load_defaults(), my_search_option_files() and
my_print_default_files() utilized a global variable
containing a pointer to thread local memory. This could lead
to race conditions when those functions were called with high
concurrency.
Fixed by changing the interface of the said functions to avoid
the necessity for using a global variable.
Since we cannot change load_defaults() prototype for API
compatibility reasons, it was renamed my_load_defaults().
Now load_defaults() is a thread-unsafe wrapper around
a thread-safe version, my_load_defaults().
mysys/default.c:
1. Added a thread-safe version of load_defaults(), changed
load_defaults() with the old interface to be a thread-unsafe
wrapper around the thread-safe version.
2. Always use a private MEM_ROOT in my_print_default_files,
don't use a global variable.
sql-common/client.c:
Use a thread-safe version of load_defaults().
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spurious warning
If a sys-var has a base and a block-size>1, and then a
user-supplied value >= minimum ended up below minimum
thanks to block-size alignment, we threw a warning.
This meant for instance that when getting, then setting
the minimum, we'd see a warning. This was needlessly
confusing. (updated patch)
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Took the Xfree implementation (based on the same rewrite as the NDB one)
and added it instead of the current implementation.
Added a macro to make the calls to MD5 more streamlined.
client/mysqlmanager-pwgen.c:
Bug #42434: changed to call the macro
include/my_md5.h:
Bug #42434: use the Xfree implementation
mysys/md5.c:
Bug #42434: use the Xfree implementation
sql/item_strfunc.cc:
Bug #42434: changed to call the macro
sql/table.cc:
Bug #42434: changed to call the macro
tools/mysqlmanager.c:
Bug #42434: changed to call the macro
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When disk is full, server may waiting for free space while
writing binlog, relay-log or MyISAM tables. The server will
continue after user have freed some space. But the error
message printed was not quite clear about the how often the
error message is printed, and there will be a delay before
the server continue and user freeing space. And caused users
thinking that the server was hanging forever.
This patch fixed the problem by making the error messages
printed more clear. The error message is split into two part,
the first part will only be printed once, and the second part
will be printed very 10 times.
Message first part:
Disk is full writing '<filename>' (Errcode: <errorno>). Waiting
for someone to free space... (Expect up to 60 secs delay for
server to continue after freeing disk space)
Message second part:
Retry in 60 secs, Message reprinted in 600 secs
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Several functions (mostly in mysqld.cc) directly call
exit() function in case of errors, which is not a desired
behaviour expecially in the embedded-server library.
Fixed by making these functions return error sign instead
of exiting.
per-file comments:
include/my_getopt.h
Bug#39289 libmysqld.a calls exit() upon error
added 'error' retvalue for my_getopt_register_get_addr
libmysqld/lib_sql.cc
Bug#39289 libmysqld.a calls exit() upon error
unireg_clear() function implemented
mysys/default.c
Bug#39289 libmysqld.a calls exit() upon error
error returned instead of exit() call
mysys/mf_tempdir.c
Bug#39289 libmysqld.a calls exit() upon error
free_tmpdir() - fixed so it's not produce crash on uninitialized
tmpdir structure
mysys/my_getopt.c
Bug#39289 libmysqld.a calls exit() upon error
error returned instead of exit() call
sql/mysql_priv.h
Bug#39289 libmysqld.a calls exit() upon error
unireg_abort definition fixed for the embedded server
sql/mysqld.cc
Bug#39289 libmysqld.a calls exit() upon error
various functions fixed
error returned instead of exit() call
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