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- 19 Jul, 2011 1 commit
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Chuck Bell authored
This patch adds a new client utility that enables or disables plugin features. The utility disables or enables a plugin using values (name, soname, and symbols) provided via a configuration file by the same name. For example, to ENABLE the daemon_example plugin, the utility will read the daemon_example.ini configuration file and use the values contained to enable or disable the plugin.
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- 30 Jun, 2011 1 commit
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Kent Boortz authored
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- 13 Apr, 2011 1 commit
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Davi Arnaut authored
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- 29 Mar, 2011 1 commit
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Magne Mahre authored
The LGPL license is used in some legacy code, and to adhere to current licensing polity, we remove those files that are no longer used, and reorganize the remaining LGPL code so it will be GPL licensed from now on. Note: This patch only removed LGPL licensed files in MySQL 5.5 and later, and is the third of a set of patches to remove LGPL from all trees. (See Bug# 11840513 for details)
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- 28 Mar, 2011 1 commit
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Magne Mahre authored
The LGPL license is used in some legacy code, and to adhere to current licensing polity, we remove those files that are no longer used, and reorganize the remaining LGPL code so it will be GPL licensed from now on. Note: This patch only removed LGPL licensed files in MySQL 5.1, and is the second of a set of patches to remove LGPL from all trees. (See Bug# 11840513 for details)
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- 22 Mar, 2011 1 commit
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Magne Mahre authored
The LGPL license is used in some legacy code, and to adhere to current licensing polity, we remove those files that are no longer used, and reorganize the remaining LGPL code so it will be GPL licensed from now on. Note: This patch only removed LGPL licensed files in MySQL 5.0, and is the first of a set of patches to remove LGPL from all trees. (See Bug# 11840513 for details) include/my_compare.h: Mostly code moved in from my_handler include/my_global.h: AIX-only code. Function used to be in my_port.c Inlining instead. libmysql/Makefile.shared: my_gethostbyname and my_port is removed myisam/mi_check.c: ha_find_null is moved from my_handler and made static.
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- 21 Feb, 2011 1 commit
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Magnus Blåudd authored
Remove last traces of HAVE_NDBCLUSTER_DB define - it has not had an effect in a long time and is just confusing. At the same time backport the removal of OPT_NDB_CONNECTSTRING and OPT_NDBCLUSTER values from "enum options_client"
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- 11 Jan, 2011 1 commit
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Magne Mahre authored
and 'THREAD_SAFE_CLIENT'. As of MySQL 5.5, we no longer support non-threaded builds. This patch removes all references to the obsolete THREAD and THREAD_SAFE_CLIENT preprocessor symbols. These were used to distinguish between threaded and non-threaded builds.
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- 02 Dec, 2010 1 commit
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Mats Kindahl authored
Adding symbol FN_DIRSEP to Windows as well.
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- 01 Dec, 2010 1 commit
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Mats Kindahl authored
When installing plugins, there is a missing check for slash (/) in the path on Windows. Note that on Windows, both / and \ can be used to separate directories. This patch fixes the issue by: - Adding a FN_DIRSEP symbol for all platforms consisting of a string of legal directory separators. - Adding a charset-aware version of strcspn(). - Adding a check_valid_path() function that uses my_strcspn() to check if any FN_DIRSEP character is in the supplied string. - Using the check_valid_path() function in sql_plugin.cc and sql_udf.cc (which means replacing the existing test there). include/config-netware.h: Adding FN_DIRSEP ****** Adding FN_DIRSEP include/config-win.h: Adding FN_DIRSEP ****** Adding FN_DIRSEP include/m_ctype.h: Adding my_strspn() and my_strcspn(). ****** Adding my_strspn() and my_strcspn(). include/my_global.h: Adding FN_DIRSEP ****** Adding FN_DIRSEP mysql-test/t/plugin_not_embedded.test: Adding test that file names containing / is disallowed on *all* platforms. ****** Adding test that file names containing / is disallowed on *all* platforms. sql/sql_plugin.cc: Introducing check_if_path() function for checking if filename is a path to include / on Windows. ****** Introducing check_if_path() function for checking if filename is a path to include / on Windows. sql/sql_udf.cc: Switching to use check_if_path() function. ****** Switching to use check_if_path() function. strings/my_strchr.c: Adding my_strspn() and my_strcspn(). ****** Adding my_strspn() and my_strcspn().
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- 04 Oct, 2010 3 commits
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Vladislav Vaintroub authored
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Vladislav Vaintroub authored
- fix ~20 warnings about redefinition of HAVE_DLOPEN This was caused by new ADD_DEFINITIONS(-DHAVE_DLOPEN) inside client library CMakeLists.txt - fix dlerror() message which ("static build?" ) which is only confusing on Windows, there is no "static build"
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Davi Arnaut authored
Quoting from the bug report: The pstack library has been included in MySQL since version 4.0.0. It's useless and should be removed. Details: According to its own documentation, pstack only works on Linux on x86 in 32 bit mode and requires LinuxThreads and a statically linked binary. It doesn't really support any Linux from 2003 or later and doesn't work on any other OS.
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- 09 Aug, 2010 1 commit
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Georgi Kodinov authored
Merged the implementation to a new base tree.
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- 23 Jul, 2010 6 commits
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Davi Arnaut authored
Remove wrappers around inline -- static inline is used without wrappers throughout the source code. We rely on the compiler or linker to eliminate unused static functions.
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Davi Arnaut authored
Remove workarounds for ancient systems. mysys/default.c: Make cast more explicit to ensure a correct offset.
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Davi Arnaut authored
Remove unused macros or macro which are always defined. include/my_global.h: Remove unused macros and move macros which aren't used globally.
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Davi Arnaut authored
Remove the obsolete and buggy bmove512, use memcpy instead.
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Davi Arnaut authored
Remove the ancient and dead raid code. By now, even the server side has been removed.
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Davi Arnaut authored
Remove Windows related files which aren't used anymore.
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- 15 Jul, 2010 3 commits
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Davi Arnaut authored
Remove QNX specific code.
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Davi Arnaut authored
Remove MS-DOS specific code.
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Davi Arnaut authored
Remove Netware specific code.
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- 14 Jul, 2010 2 commits
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Davi Arnaut authored
strict aliasing violations. Post-merge fix: include my_compiler.h before my_attribute.h as the latter will undef __attribute__ if the compiler is not GCC. Based on the compiler version, in my_compiler.h we know for sure whether the aligned attribute is supported. Furthermore, undefining attribute might cause bugs if some system header uses it. include/my_compiler.h: Drop aligned attribute support from Sun Studio C++ compiler as its not clear exactly which version of it supports the attribute.
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Davi Arnaut authored
strict aliasing violations. Another rather noisy violation of strict aliasing rules is the spatial code which makes use of stack-based memory (of type Geometry_buffer) to provide placement for Geometry objects. Although a placement new is allowed to dynamically change the type of a object, the object returned by the new placement was being ignored and the original stack-based object was being casted to the new type, thus violating strict aliasing rules. The solution is to reorganize the code so that the object returned by the new placement is used instead of casting the original object. Also, to ensure that the stack-based object is properly aligned with respect to the objects it provides placement for, a set of compiler-dependent macros and types are introduced so that the alignment of objects can be inquired and specified. include/Makefile.am: Add new header. include/my_compiler.h: Add new header. include/my_global.h: Remove now-unnecessary macros. sql/spatial.cc: Make object creation functions return the object whose type was dynamically changed by the new placement. Move static method from the header in order to avoid having to access a forward declaration. sql/spatial.h: Object creation callbacks now take a array of chars as the storage area. Move create_by_typeid to a source file as to not access the forward declaration of Geometry_buffer. Ensure that Geometry_buffer is properly aligned. sql/sql_show.cc: Use newly added aligned storage helper.
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- 09 Jul, 2010 1 commit
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Davi Arnaut authored
Although the C standard mandates that sprintf return the number of bytes written, some very ancient systems (i.e. SunOS 4) returned a pointer to the buffer instead. Since these systems are not supported anymore and are hopefully long dead by now, simply remove the portability wrapper that dealt with this discrepancy. The autoconf check was causing trouble with GCC.
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- 08 Jul, 2010 1 commit
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Davi Arnaut authored
Essentially, the problem is that safemalloc is excruciatingly slow as it checks all allocated blocks for overrun at each memory management primitive, yielding a almost exponential slowdown for the memory management functions (malloc, realloc, free). The overrun check basically consists of verifying some bytes of a block for certain magic keys, which catches some simple forms of overrun. Another minor problem is violation of aliasing rules and that its own internal list of blocks is prone to corruption. Another issue with safemalloc is rather the maintenance cost as the tool has a significant impact on the server code. Given the magnitude of memory debuggers available nowadays, especially those that are provided with the platform malloc implementation, maintenance of a in-house and largely obsolete memory debugger becomes a burden that is not worth the effort due to its slowness and lack of support for detecting more common forms of heap corruption. Since there are third-party tools that can provide the same functionality at a lower or comparable performance cost, the solution is to simply remove safemalloc. Third-party tools can provide the same functionality at a lower or comparable performance cost. The removal of safemalloc also allows a simplification of the malloc wrappers, removing quite a bit of kludge: redefinition of my_malloc, my_free and the removal of the unused second argument of my_free. Since free() always check whether the supplied pointer is null, redudant checks are also removed. Also, this patch adds unit testing for my_malloc and moves my_realloc implementation into the same file as the other memory allocation primitives. client/mysqldump.c: Pass my_free directly as its signature is compatible with the callback type -- which wasn't the case for free_table_ent.
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- 02 Jul, 2010 1 commit
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Davi Arnaut authored
Apart strict-aliasing warnings, fix the remaining warnings generated by GCC 4.4.4 -Wall and -Wextra flags. One major source of warnings was the in-house function my_bcmp which (unconventionally) took pointers to unsigned characters as the byte sequences to be compared. Since my_bcmp and bcmp are deprecated functions whose only difference with memcmp is the return value, every use of the function is replaced with memcmp as the special return value wasn't actually being used by any caller. There were also various other warnings, mostly due to type mismatches, missing return values, missing prototypes, dead code (unreachable) and ignored return values. BUILD/SETUP.sh: Remove flags that are implied by -Wall and -Wextra. Do not warn about unused parameters in C++. BUILD/check-cpu: Print only the compiler version instead of verbose banner. Although the option is gcc specific, the check was only being used for GCC specific checks anyway. client/mysql.cc: bcmp is no longer defined. client/mysqltest.cc: Pass a string to function expecting a format string. Replace use of bcmp with memcmp. cmd-line-utils/readline/Makefile.am: Always define _GNU_SOURCE when compiling GNU readline. Required to make certain prototypes visible. cmd-line-utils/readline/input.c: Condition for the code to be meaningful. configure.in: Remove check for bcmp. extra/comp_err.c: Use appropriate type. extra/replace.c: Replace use of bcmp with memcmp. extra/yassl/src/crypto_wrapper.cpp: Do not ignore the return value of fgets. Retrieve the file position if fgets succeed -- if it fails, the function will bail out and return a error. extra/yassl/taocrypt/include/blowfish.hpp: Use a single array instead of accessing positions of the sbox_ through a subscript to pbox_. extra/yassl/taocrypt/include/runtime.hpp: One definition of such functions is enough. extra/yassl/taocrypt/src/aes.cpp: Avoid potentially ambiguous conditions. extra/yassl/taocrypt/src/algebra.cpp: Rename arguments to avoid shadowing related warnings. extra/yassl/taocrypt/src/blowfish.cpp: Avoid potentially ambiguous conditions. extra/yassl/taocrypt/src/integer.cpp: Do not define type within a anonymous union. Use a variable to return a value instead of leaving the result in a register -- compiler does not know the logic inside the asm. extra/yassl/taocrypt/src/misc.cpp: Define handler for pure virtual functions. Remove unused code. extra/yassl/taocrypt/src/twofish.cpp: Avoid potentially ambiguous conditions. extra/yassl/testsuite/test.hpp: Function must have C language linkage. include/m_string.h: Remove check which relied on bcmp being defined -- they weren't being used as bcmp is only visible when _BSD_SOURCE is defined. include/my_bitmap.h: Remove bogus helpers which were used only in a few files and were causing warnings about dead code. include/my_global.h: Due to G++ bug, always silence false-positive uninitialized variables warnings when compiling C++ code with G++. Remove bogus helper. libmysql/Makefile.shared: Remove built-in implementation of bcmp. mysql-test/lib/My/SafeProcess/safe_process.cc: Cast pid to largest possible type for a process identifier. mysys/mf_loadpath.c: Leave space of the ending nul. mysys/mf_pack.c: Replace bcmp with memcmp. mysys/my_bitmap.c: Dead code removal. mysys/my_gethwaddr.c: Remove unused variable. mysys/my_getopt.c: Silence bogus uninitialized variable warning. Do not cast away the constant qualifier. mysys/safemalloc.c: Cast to expected type. mysys/thr_lock.c: Silence bogus uninitialized variable warning. sql/field.cc: Replace bogus helper with a more appropriate logic which is used throughout the code. sql/item.cc: Remove bogus logical condition which always evaluates to TRUE. sql/item_create.cc: Simplify code to avoid signedness related warnings. sql/log_event.cc: Replace use of bcmp with memcmp. No need to use helpers for simple bit operations. sql/log_event_old.cc: Replace bmove_align with memcpy. sql/mysqld.cc: Move use declaration of variable to the ifdef block where it is used. Remove now-unnecessary casts and arguments. sql/set_var.cc: Replace bogus helpers with simple and classic bit operations. sql/slave.cc: Cast to expected type and silence bogus warning. sql/sql_class.h: Don't use enum values as bit flags, the supposed type safety is bogus as the combined bit flags are not a value in the enumeration. sql/udf_example.c: Only declare variable when necessary. sql/unireg.h: Replace use of bmove_align with memcpy. storage/innobase/os/os0file.c: Silence bogus warning. storage/myisam/mi_open.c: Remove bogus cast, DBUG_DUMP expects a pointer to unsigned char. storage/myisam/mi_page.c: Remove bogus cast, DBUG_DUMP expects a pointer to unsigned char. strings/bcmp.c: Remove built-in bcmp. strings/ctype-ucs2.c: Silence bogus warning. tests/mysql_client_test.c: Use a appropriate type as expected by simple_command().
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- 01 Jul, 2010 1 commit
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Alexey Kopytov authored
POSIX requires that a signal handler defined with sigaction() is not reset on delivering a signal unless SA_NODEFER or SA_RESETHAND is set. It is therefore unnecessary to redefine the handler on signal delivery on platforms where sigaction() is used without those flags. include/my_alarm.h: Renamed DONT_REMEMBER_SIGNAL -> SIGNAL_HANDLER_RESET_ON_DELIVERY. include/my_global.h: Renamed DONT_REMEMBER_SIGNAL -> SIGNAL_HANDLER_RESET_ON_DELIVERY. The latter is now defined only on non-BSD platforms missing the POSIX sigaction() function. libmysql/libmysql.c: Renamed DONT_REMEMBER_SIGNAL -> SIGNAL_HANDLER_RESET_ON_DELIVERY mysys/thr_alarm.c: Renamed DONT_REMEMBER_SIGNAL -> SIGNAL_HANDLER_RESET_ON_DELIVERY sql/mysqld.cc: Renamed DONT_REMEMBER_SIGNAL -> SIGNAL_HANDLER_RESET_ON_DELIVERY
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- 31 May, 2010 1 commit
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Davi Arnaut authored
Fix various mismatches between function's language linkage. Any particular function that is declared in C++ but should be callable from C must have C linkage. Note that function types with different linkages are also distinct. Thus, if a function type is declared in C code, it will have C linkage (same if declared in a extern "C" block). client/mysql.cc: Mismatch between prototype and declaration. client/mysqltest.cc: mysqltest used to be C code. Use C linkage where appropriate. cmd-line-utils/readline/input.c: Isolate unreachable code. include/my_alloc.h: Function type must have C linkage. include/my_base.h: Function type must have C linkage. include/my_global.h: Add helper macros to avoid spurious namespace indentation. include/mysql.h.pp: Update ABI file. mysys/my_gethwaddr.c: Remove stray carriage return and fix coding style. plugin/semisync/semisync_master_plugin.cc: Callback function types have C linkage. plugin/semisync/semisync_slave_plugin.cc: Callback function types have C linkage. sql/derror.cc: Expected function type has C linkage. sql/field.cc: Use helper macro and fix indentation. sql/handler.cc: Expected function type has C linkage. sql/item_sum.cc: Correct function linkages. Remove now unnecessary cast. sql/item_sum.h: Add prototypes with the appropriate linkage as otherwise they are distinct. sql/mysqld.cc: Wrap functions in C linkage mode. sql/opt_range.cc: C language linkage is ignored for class member functions. sql/partition_info.cc: Add wrapper functions with C linkage for class member functions. sql/rpl_utility.h: Use helper macro and fix indentation. sql/sql_class.cc: Change type of thd argument -- THD is a class. Use helper macro and fix indentation. sql/sql_class.h: Change type of thd argument -- THD is a class. sql/sql_select.cc: Expected function type has C linkage. sql/sql_select.h: Move prototype to sql_test.h sql/sql_show.cc: Expected function type has C linkage. sql/sql_test.cc: Fix required function prototype and fix coding style. sql/sql_test.h: Removed unnecessary export and add another. storage/myisammrg/ha_myisammrg.cc: Expected function type has C linkage. storage/perfschema/pfs.cc: PSI headers are declared with C language linkage, which also applies to function types.
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- 26 May, 2010 1 commit
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Tor Didriksen authored
Add -Wall to gcc/g++ Fix most warnings reported in dbg and opt mode. cmd-line-utils/libedit/filecomplete.c: Remove unused auto variables. configure.cmake: Add -Wall to gcc. extra/comp_err.c: Cast to correct type. extra/perror.c: Fix segfault (but warnings about deprecated features remain) extra/yassl/taocrypt/include/runtime.hpp: Comparing two literals was reported as undefined behaviour. include/my_global.h: Add a template for aligning character buffers. mysys/lf_alloc-pin.c: Initialize pointer. sql/mysqld.cc: Use UNINIT_VAR rather than LINT_INIT. sql/partition_info.cc: Use UNINIT_VAR rather than LINT_INIT. sql/rpl_handler.cc: Use char[] rather than unsigned long[] array for placement buffer. sql/spatial.cc: Use char[] rather than unsigned void*[] array for placement buffer. sql/spatial.h: Use char[] rather than unsigned void*[] array for placement buffer. sql/sql_partition.cc: Initialize auto variable. sql/sql_table.cc: Initialize auto variables. Add parens around assignment within if() sql/sys_vars.cc: Use UNINIT_VAR. storage/innobase/os/os0file.c: Init first slot in auto variable. storage/myisam/mi_create.c: Use UNINIT_VAR rather than LINT_INIT. storage/myisam/mi_open.c: Remove (wrong) casting. storage/myisam/mi_page.c: Remove (wrong) casting. storage/myisam/mi_search.c: Cast to uchar* rather than char*. strings/ctype-ucs2.c: Use UNINIT_VAR rather than LINT_INIT. Add (uchar*) casting.
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- 25 May, 2010 1 commit
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Jonathan Perkin authored
OpenBSD releases. Apply patch from Brad Smith, thanks!
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- 16 Apr, 2010 1 commit
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Daniel Fischer authored
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- 09 Apr, 2010 1 commit
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Georgi Kodinov authored
Several problems addressed: 1. The maximum value for --open_files_limit on non-windows boxes is now raised to UINT_MAX (the maximum possible without significant changes in the code). The maximum value on windows is kept to be 2048 due to a known limitation (bug 24509). 2. mysqld_safe now supports --open_files_limit=xx in addition to --open-files-limit=xx 3. mysqld_safe always passes through --open[_-]files[_-]limit to the underlying mysqld. It used to pass it through only if it the user running the script has access to the root directory or there was an --user argument specified. 4. Fixed a prototype in my_file.c to match its counterpart in the other #ifdef branch.
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- 31 Mar, 2010 1 commit
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Mats Kindahl authored
This patch: - Moves all definitions from the mysql_priv.h file into header files for the component where the variable is defined - Creates header files if the component lacks one - Eliminates all include directives from mysql_priv.h - Eliminates all circular include cycles - Rename time.cc to sql_time.cc - Rename mysql_priv.h to sql_priv.h
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- 25 Feb, 2010 1 commit
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Alexey Botchkov authored
Two problems addressed here: Embedded-server linking failure. sql/sys_vars.cc absents in the libmysqld/CMakeLists.txt The PERFORMANCE_SCHEMA-related failure of the embedded-server compilation. We try to disable the PERFORMANCE_SCHEMA in the embedded server as it's considered useless there. But we do it in wrong way as we only disable header's links to the PF, not the PF's library itself. So on Unix-ex the embedded library still contains the PF code and grows bigger with no reason. On Windows that just fails to compile. per-file comments: include/my_global.h Bug#41103 6.0 Windows embedded-server tests fail No PERFORMANCE_SCHEMA disabling in the embedded server. User can just use the --without-perfschema-engine-plugin option to exclude it from the compilation.
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- 24 Jan, 2010 1 commit
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Vladislav Vaintroub authored
Fix failing sys_vars.plugin_dir_basic - treat both '/' and '\' as path separators in get_relative_path() on Windows
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- 22 Dec, 2009 1 commit
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Sergei Golubchik authored
Bug#16565 mysqld --help --verbose does not order variablesBug#20413 sql_slave_skip_counter is not shown in show variables Bug#20415 Output of mysqld --help --verbose is incomplete Bug#25430 variable not found in SELECT @@global.ft_max_word_len; Bug#32902 plugin variables don't know their names Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting! Bug#34829 No default value for variable and setting default does not raise error Bug#34834 ? Is accepted as a valid sql mode Bug#34878 Few variables have default value according to documentation but error occurs Bug#34883 ft_boolean_syntax cant be assigned from user variable to global var. Bug#37187 `INFORMATION_SCHEMA`.`GLOBAL_VARIABLES`: inconsistent status Bug#40988 log_output_basic.test succeeded though syntactically false. Bug#41010 enum-style command-line options are not honoured (maria.maria-recover fails) Bug#42103 Setting key_buffer_size to a negative value may lead to very large allocations Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled Bug#44797 plugins w/o command-line options have no disabling option in --help Bug#46314 string system variables don't support expressions Bug#46470 sys_vars.max_binlog_cache_size_basic_32 is broken Bug#46586 When using the plugin interface the type "set" for options caused a crash. Bug#47212 Crash in DBUG_PRINT in mysqltest.cc when trying to print octal number Bug#48758 mysqltest crashes on sys_vars.collation_server_basic in gcov builds Bug#49417 some complaints about mysqld --help --verbose output Bug#49540 DEFAULT value of binlog_format isn't the default value Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix) Bug#49644 init_connect and \0 Bug#49645 init_slave and multi-byte characters Bug#49646 mysql --show-warnings crashes when server dies CMakeLists.txt: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled client/mysql.cc: don't crash with --show-warnings when mysqld dies config/ac-macros/plugins.m4: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled include/my_getopt.h: comments include/my_pthread.h: fix double #define mysql-test/mysql-test-run.pl: run sys_vars suite by default properly recognize envirinment variables (e.g. MTR_MAX_SAVE_CORE) set to 0 escape gdb command line arguments mysql-test/suite/sys_vars/r/rpl_init_slave_func.result: init_slave+utf8 bug mysql-test/suite/sys_vars/t/rpl_init_slave_func.test: init_slave+utf8 bug mysys/my_getopt.c: Bug#34599 MySQLD Option and Variable Reference need to be consistent in formatting! Bug#46586 When using the plugin interface the type "set" for options caused a crash. Bug#49640 ambiguous option '--skip-skip-myisam' (double skip prefix) mysys/typelib.c: support for flagset sql/ha_ndbcluster.cc: backport from telco tree sql/item_func.cc: Bug#49644 init_connect and \0 Bug#49645 init_slave and multi-byte characters sql/sql_builtin.cc.in: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled sql/sql_plugin.cc: Bug#44691 Some plugins configured as MYSQL_PLUGIN_MANDATORY in can be disabled Bug#32902 plugin variables don't know their names Bug#44797 plugins w/o command-line options have no disabling option in --help sql/sys_vars.cc: all server variables are defined here storage/myisam/ft_parser.c: remove unnecessary updates of param->quot storage/myisam/ha_myisam.cc: myisam_* variables belong here strings/my_vsnprintf.c: %o and %llx unittest/mysys/my_vsnprintf-t.c: %o and %llx tests vio/viosocket.c: bugfix: fix @@wait_timeout to work with socket timeouts (vs. alarm thread)
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- 17 Dec, 2009 1 commit
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Satya B authored
When compressed myisam files are opened, they are always memory mapped sometimes causing memory swapping problems. When we mmap the myisam compressed tables of size greater than the memory available, the kswapd0 process utilization is very high consuming 30-40% of the cpu. This happens only with linux kernels older than 2.6.9 With newer linux kernels, we don't have this problem of high cpu consumption and this option may not be required. The option 'myisam_mmap_size' is added to limit the amount of memory used for memory mapping of myisam files. This option is not dynamic. The default value on 32 bit system is 4294967295 bytes and on 64 bit system it is 18446744073709547520 bytes. Note: Testcase only tests the option variable. The actual bug has be to tested manually. include/my_global.h: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() define SIZE_T_MAX include/myisam.h: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() declare 'myisam_mmap_size' and 'myisam_mmap_used' variables and the mutex THR_LOCK_myisam_mmap myisam/mi_packrec.c: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() add 'myisam_mmap_size' option which limits the memory available to mmap of myisam files myisam/mi_static.c: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() declare 'myisam_mmap_size' and 'myisam_mmap_used' variables and the mutex THR_LOCK_myisam_mmap myisam/myisamdef.h: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() move MEMMAP_EXTRA_MARGIN to myisam.h so that it can be used in mysqld.cc mysql-test/r/variables.result: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() Testcase for BUG#37408 to test the myisam_mmap_size option mysql-test/t/variables.test: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() Testcase for BUG#37408 to test the myisam_mmap_size option mysys/my_thr_init.c: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() intialize the lock THR_LOCK_myisam_mmap sql/mysqld.cc: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() add the 'myisam_mmap_size' option sql/set_var.cc: Fix for Bug #37408 - Compressed MyISAM files should not require/use mmap() add the 'myisam_mmap_size' to the SHOW VARIABLES list
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- 03 Dec, 2009 1 commit
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Konstantin Osipov authored
----------------------------------------------------------- 2497.479.10 Sergei Golubchik 2008-08-27 proc_info_hook, mysys access to thd->proc_info This patch is necessary for backport of WL#4284 "Transactional DDL locking". include/my_global.h: proc_info_hook include/my_sys.h: proc_info_hook mysys/my_static.c: proc_info_hook sql/mysqld.cc: proc_info_hook sql/sql_class.cc: proc_info_hook
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