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Commit Graph

3174 Commits

Author SHA1 Message Date
unknown
91f0013986 A patch for BUG#19723: kill of active connection yields
different error code depending on platform.

On Mac OS X, KILL statement issued to kill the current
connection would return a different error code and message than on
other platforms ('MySQL server has gone away' instead of 'Shutdown
in progress').

The reason for this difference was that on Mac OS X we have macro
SIGNAL_WITH_VIO_CLOSE defined. This macro forces KILL
implementation to close the communication socket of the thread
that is being killed. SIGNAL_WITH_VIO_CLOSE macro is defined on
platforms where just sending a signal is not a reliable mechanism
to interrupt the thread from sleeping on a blocking system call.
In a nutshell, closing the socket is a hack to work around an
operating system bug and awake the blocked thread no matter what.

However, if the thread that is being killed is the same
thread that issued KILL statement, closing the socket leads to a
prematurely lost connection. At the same time it is not necessary
to close the socket in this case, since the thread in question
is not inside a blocking system call.

The fix, therefore, is to not close the socket if the thread that
is being killed is the same that issued KILL statement, even with
defined SIGNAL_WITH_VIO_CLOSE.


mysql-test/r/kill.result:
  Update result file.
mysql-test/t/kill.test:
  Added a test case for BUG#19723: kill of active connection yields
  different error code depending on platform.
sql/sql_class.cc:
  Call close_active_vio() only if we're killing another thread.
2007-11-15 15:35:35 +03:00
anozdrin/alik@station.
e8343ca83d A patch for BUG#19723: kill of active connection yields
different error code depending on platform.

On Mac OS X, KILL statement issued to kill the current
connection would return a different error code and message than on
other platforms ('MySQL server has gone away' instead of 'Shutdown
in progress').

The reason for this difference was that on Mac OS X we have macro
SIGNAL_WITH_VIO_CLOSE defined. This macro forces KILL
implementation to close the communication socket of the thread
that is being killed. SIGNAL_WITH_VIO_CLOSE macro is defined on
platforms where just sending a signal is not a reliable mechanism
to interrupt the thread from sleeping on a blocking system call.
In a nutshell, closing the socket is a hack to work around an
operating system bug and awake the blocked thread no matter what.

However, if the thread that is being killed is the same
thread that issued KILL statement, closing the socket leads to a
prematurely lost connection. At the same time it is not necessary
to close the socket in this case, since the thread in question
is not inside a blocking system call.

The fix, therefore, is to not close the socket if the thread that
is being killed is the same that issued KILL statement, even with
defined SIGNAL_WITH_VIO_CLOSE.
2007-11-15 15:35:35 +03:00
unknown
c1a36d80ef Push history-limiting code until after the code that adds new
history entries.  Lazy deletion isn't smart or useful here.

Backport from 5.1 .


include/my_sys.h:
  Prepare for rename in 5.1.
mysql-test/r/profiling.result:
  Backport tests from 5.1.
mysql-test/t/profiling.test:
  Backport tests from 5.1.
sql/mysql_priv.h:
  Backport changes from 5.1 .
sql/sp_head.cc:
  Backport changes from 5.1 .
sql/sql_class.cc:
  Backport changes from 5.1 .
sql/sql_parse.cc:
  Backport changes from 5.1 .
sql/sql_profile.cc:
  Push history-limiting code until after the code that adds new 
  history entries.  Lazy deletion isn't smart or useful here.
  
  Correct for 5.0 member existance and execution.
sql/sql_profile.h:
  Backport changes from 5.1 .
sql/sql_show.cc:
  Backport changes from 5.1 .
2007-11-14 15:11:58 -05:00
cmiller@zippy.cornsilk.net
ddb1443b07 Push history-limiting code until after the code that adds new
history entries.  Lazy deletion isn't smart or useful here.

Backport from 5.1 .
2007-11-14 15:11:58 -05:00
unknown
711cf7503d Merge mysql.com:/home/gluh/MySQL/Merge/5.1
into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt


BitKeeper/etc/ignore:
  auto-union
mysql-test/r/events_bugs.result:
  Auto merged
mysql-test/r/partition.result:
  Auto merged
mysql-test/r/ps_2myisam.result:
  Auto merged
mysql-test/r/ps_3innodb.result:
  Auto merged
mysql-test/r/ps_4heap.result:
  Auto merged
mysql-test/r/ps_5merge.result:
  Auto merged
mysql-test/r/sp.result:
  Auto merged
mysql-test/t/partition.test:
  Auto merged
mysql-test/t/subselect.test:
  Auto merged
mysql-test/t/variables.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/ha_partition.cc:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/item_timefunc.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_partition.cc:
  Auto merged
sql/sql_plugin.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_udf.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/share/errmsg.txt:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
mysql-test/r/select.result:
  manual merge
mysql-test/t/select.test:
  manual merge
2007-11-14 17:30:16 +04:00
gluh@eagle.(none)
58336411c9 Merge mysql.com:/home/gluh/MySQL/Merge/5.1
into  mysql.com:/home/gluh/MySQL/Merge/5.1-opt
2007-11-14 17:30:16 +04:00
unknown
2892d3a2ab Merge gleb.loc:/home/uchum/5.0-opt
into  gleb.loc:/home/uchum/5.1-opt


sql/item.cc:
  Auto merged
sql/item.h:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_subselect.cc:
  Auto merged
sql/sp_rcontext.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
mysql-test/r/subselect.result:
  Merge with 5.0-opt.
mysql-test/t/subselect.test:
  Merge with 5.0-opt.
2007-11-11 06:07:38 +04:00
gshchepa/uchum@gleb.loc
f457080109 Merge gleb.loc:/home/uchum/5.0-opt
into  gleb.loc:/home/uchum/5.1-opt
2007-11-11 06:07:38 +04:00
unknown
e7c6a81f25 Fixed bug #28076: inconsistent binary/varbinary comparison.
After adding an index the <VARBINARY> IN (SELECT <BINARY> ...)
clause returned a wrong result: the VARBINARY value was illegally padded
with zero bytes to the length of the BINARY column for the index search.
(<VARBINARY>, ...) IN (SELECT <BINARY>, ... ) clauses are affected too.


sql/item.cc:
  Fixed bug #28076.
  The Item_cache_str::save_in_field method has been overloaded
  to check cached values for an illegal padding before the saving
  into a field.
sql/item.h:
  Fixed bug #28076.
  The Item_cache_str::is_varbinary flag has been added and the
  Item_cache_str::save_in_field method has been overloaded to prevent
  cached values from an illegal padding when saving in fields.
  The signature of the Item_cache::get_cache method has been
  changed to accept pointers to Item instead of Item_result
  values.
sql/item_cmpfunc.cc:
  Fixed bug #28076.
  The Item_in_optimizer::fix_left method has been modified to
  to call Item_cache::get_cache in a new manner.
sql/item_subselect.cc:
  Fixed bug #28076.
  The subselect_indexsubquery_engine::exec method has been
  modified to take into account field conversion errors
  (copy&paste from subselect_uniquesubquery_engine::exec).
sql/sp_rcontext.cc:
  Fixed bug #28076.
  The sp_rcontext::create_case_expr_holder method has been
  modified to call Item_cache::get_cache in a new manner.
sql/sp_rcontext.h:
  Fixed bug #28076.
  The sp_rcontext::create_case_expr_holder method signature
  has been modified to pass Item pointers to the
  Item_cache::get_cache method.
sql/sql_class.cc:
  Fixed bug #28076.
  The select_max_min_finder_subselect::send_data method has been
  modified to call Item_cache::get_cache in a new manner.
mysql-test/t/subselect.test:
  Added test case for bug #28076.
mysql-test/r/subselect.result:
  Added test case for bug #28076.
2007-11-10 23:44:48 +04:00
gshchepa/uchum@gleb.loc
0aabb89ee1 Fixed bug #28076: inconsistent binary/varbinary comparison.
After adding an index the <VARBINARY> IN (SELECT <BINARY> ...)
clause returned a wrong result: the VARBINARY value was illegally padded
with zero bytes to the length of the BINARY column for the index search.
(<VARBINARY>, ...) IN (SELECT <BINARY>, ... ) clauses are affected too.
2007-11-10 23:44:48 +04:00
unknown
f0e24c795f Merge bk-internal.mysql.com:/home/bk/mysql-5.1-community
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-forcollapseandmerge


sql/ha_ndbcluster.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/slave.cc:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/table.h:
  Auto merged
sql/sql_parse.cc:
  Manual merge.
sql/sql_select.cc:
  Manual merge.
2007-11-09 14:55:32 -05:00
cmiller@zippy.cornsilk.net
1426320008 Merge bk-internal.mysql.com:/home/bk/mysql-5.1-community
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-forcollapseandmerge
2007-11-09 14:55:32 -05:00
unknown
0eec2d63d5 Merge hynda.mysql.fi:/home/my/mysql-5.1-main
into  hynda.mysql.fi:/home/my/mysql-5.1-marvel


BitKeeper/etc/ignore:
  auto-union
client/mysql_upgrade.c:
  Auto merged
client/mysqlcheck.c:
  Auto merged
client/mysqldump.c:
  Auto merged
client/mysqlimport.c:
  Auto merged
client/mysqlshow.c:
  Auto merged
client/mysqlslap.c:
  Auto merged
client/mysqltest.c:
  Auto merged
include/my_global.h:
  Auto merged
include/my_sys.h:
  Auto merged
mysys/mf_keycache.c:
  Auto merged
mysys/my_init.c:
  Auto merged
mysys/safemalloc.c:
  Auto merged
sql/ha_partition.cc:
  Auto merged
sql/handler.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/log.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/opt_range.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/table.cc:
  Auto merged
sql/table.h:
  Auto merged
sql/unireg.cc:
  Auto merged
storage/myisam/ha_myisam.cc:
  Auto merged
storage/myisam/mi_write.c:
  Auto merged
sql/sql_yacc.yy:
  Merged with 5.1 main tree.
2007-11-08 13:23:08 +02:00
jani@hynda.mysql.fi
e8d8102a93 Merge hynda.mysql.fi:/home/my/mysql-5.1-main
into  hynda.mysql.fi:/home/my/mysql-5.1-marvel
2007-11-08 13:23:08 +02:00
unknown
9ad4366b7b Cleanup: rename select_send::status to select_send::is_result_set_started.
Add select_send::cleanup.
Fix a compilation warning.
Issues spotted while working on the fix for Bug#12713.


sql-common/client.c:
  Fix a warning.
sql/sql_class.cc:
  Give a variable a more specific name. Rewrite an incorrect comment.
  Add a cleanup for select_send. The only case now this cleanup can be
  necessary is when we have a prepared statement inside a stored procedure, 
  and a continue handler. At first execution, the statement is killed
  after having executed select_send::send_fields. At the second execution
  it is killed after having executed select_send::send_fields.
sql/sql_class.h:
  Rename a member. Add comments.
2007-10-31 18:33:13 +03:00
kostja@bodhi.(none)
3154b2bee4 Cleanup: rename select_send::status to select_send::is_result_set_started.
Add select_send::cleanup.
Fix a compilation warning.
Issues spotted while working on the fix for Bug#12713.
2007-10-31 18:33:13 +03:00
unknown
8365a74e47 In ha_delete_table, use a standard mechanism to intercept the error message
and convert it to a warning instead of direct manipulation with the
thread error stack.
Fix a bug in handler::print_erorr when a garbled message was
printed for HA_ERR_NO_SUCH_TABLE.
This is a pre-requisite patch for the fix for Bug#12713 Error in a stored
function called from a SELECT doesn't cause ROLLBACK of statem


sql/handler.cc:
  Use a standard mechanism to intercept the error message, instead
  of direct manipulation with thread error stack. 
  Fix a bug when for HA_ERR_NO_SUCH_TABLE handler::print_error() would
  print a garbled message.
sql/log.cc:
  Extend internal error handler interface to carry the message text.
sql/mysqld.cc:
  Extend internal error handler interface to carry the message text.
sql/sql_base.cc:
  Extend internal error handler interface to carry the message text.
sql/sql_class.cc:
  Extend internal error handler interface to carry the message text.
sql/sql_class.h:
  Extend internal error handler interface to carry the message text.
sql/sql_error.cc:
  Extend internal error handler interface to carry the message text.
2007-10-30 22:35:14 +03:00
kostja@bodhi.(none)
230604f33c In ha_delete_table, use a standard mechanism to intercept the error message
and convert it to a warning instead of direct manipulation with the
thread error stack.
Fix a bug in handler::print_erorr when a garbled message was
printed for HA_ERR_NO_SUCH_TABLE.
This is a pre-requisite patch for the fix for Bug#12713 Error in a stored
function called from a SELECT doesn't cause ROLLBACK of statem
2007-10-30 22:35:14 +03:00
unknown
2437001234 Use an inline getter method (thd->is_error()) to query if there is an error
in THD.
In future the error may be stored elsewhere (not in net.report_error) and 
it's important to start using an opaque getter to simplify merges.


sql/filesort.cc:
  net.report_error -> is_error()
sql/ha_ndbcluster_binlog.cc:
  net.report_error -> is_error()
sql/item_func.cc:
  net.report_error -> is_error()
sql/item_subselect.cc:
  net.report_error -> is_error()
sql/set_var.cc:
  net.report_error -> is_error()
sql/sp.cc:
  net.report_error -> is_error()
sql/sp_head.cc:
  net.report_error -> is_error()
sql/sql_base.cc:
  net.report_error -> is_error()
sql/sql_class.cc:
  net.report_error -> is_error()
sql/sql_class.h:
  net.report_error -> is_error()
sql/sql_connect.cc:
  net.report_error -> is_error()
sql/sql_delete.cc:
  net.report_error -> is_error()
sql/sql_insert.cc:
  net.report_error -> is_error()
sql/sql_parse.cc:
  net.report_error -> is_error()
sql/sql_prepare.cc:
  net.report_error -> is_error()
sql/sql_select.cc:
  net.report_error -> is_error()
sql/sql_union.cc:
  net.report_error -> is_error()
sql/sql_update.cc:
  net.report_error -> is_error()
sql/sql_view.cc:
  net.report_error -> is_error()
sql/sql_yacc.yy:
  net.report_error -> is_error()
2007-10-30 20:08:16 +03:00
kostja@bodhi.(none)
e4b353c40c Use an inline getter method (thd->is_error()) to query if there is an error
in THD.
In future the error may be stored elsewhere (not in net.report_error) and 
it's important to start using an opaque getter to simplify merges.
2007-10-30 20:08:16 +03:00
unknown
38ed305e15 Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1


client/mysqlcheck.c:
  Auto merged
configure.in:
  Auto merged
include/config-win.h:
  Auto merged
mysql-test/r/func_in.result:
  Auto merged
mysql-test/r/information_schema.result:
  Auto merged
mysql-test/t/func_in.test:
  Auto merged
mysql-test/t/information_schema.test:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/mysqld.cc:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_cache.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_parse.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_select.cc:
  Auto merged
sql/sql_show.cc:
  Auto merged
sql/sql_table.cc:
  Auto merged
sql/sql_update.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/table.h:
  Auto merged
storage/myisam/ha_myisam.cc:
  Auto merged
sql/sql_lex.h:
  SCCS merged
2007-10-29 12:42:06 -04:00
cmiller@zippy.cornsilk.net
61621a9791 Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1
2007-10-29 12:42:06 -04:00
unknown
0e076d4bb9 Merge gleb.loc:/home/uchum/work/bk/5.0-opt
into  gleb.loc:/home/uchum/work/bk/5.1-opt


mysql-test/r/select.result:
  Auto merged
mysql-test/r/type_decimal.result:
  Auto merged
mysql-test/t/select.test:
  Auto merged
mysql-test/t/type_decimal.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_yacc.yy:
  Auto merged
sql/share/errmsg.txt:
  Merge with 5.0-opt
2007-10-26 18:05:46 +05:00
gshchepa/uchum@gleb.loc
30f8c35bca Merge gleb.loc:/home/uchum/work/bk/5.0-opt
into  gleb.loc:/home/uchum/work/bk/5.1-opt
2007-10-26 18:05:46 +05:00
unknown
46b03c598d Merge gleb.loc:/home/uchum/work/bk/PA/5.0-opt-31663
into  gleb.loc:/home/uchum/work/bk/5.0-opt


sql/sql_class.cc:
  Auto merged
2007-10-26 17:55:16 +05:00
gshchepa/uchum@gleb.loc
9bcd2fb0a6 Merge gleb.loc:/home/uchum/work/bk/PA/5.0-opt-31663
into  gleb.loc:/home/uchum/work/bk/5.0-opt
2007-10-26 17:55:16 +05:00
unknown
bcc627846d Fixed bug #31663: if the FIELDS TERMINATED BY string
in the SELECT INTO OUTFILE clause starts with a special
character (one of n, t, r, b, 0, Z or N) and ENCLOSED BY
is empty, every occurrence of this character within a
field value is duplicated.

Duplication has been avoided.
New warning message has been added: "First character of
the FIELDS TERMINATED string is ambiguous; please use
non-optional and non-empty FIELDS ENCLOSED BY".


mysql-test/r/outfile_loaddata.result:
  BitKeeper file /home/uchum/work/bk/5.0-opt-31663/mysql-test/r/outfile_loaddata.result
  Added test case for bug #31663.
mysql-test/t/outfile_loaddata.test:
  BitKeeper file /home/uchum/work/bk/5.0-opt-31663/mysql-test/t/outfile_loaddata.test
  Added test case for bug #31663.
sql/sql_class.h:
  Fixed bug #31663.
  The select_export::is_ambiguous_field_term field has been added.
  This field is true if select_export::field_sep_char contains
  the first char of the FIELDS TERMINATED BY (ENCLOSED BY is empty),
  and items can contain this character.
  The select_export::field_term_char field has been added (first
  char of the FIELDS TERMINATED BY string or INT_MAX).
sql/sql_class.cc:
  Fixed bug #31663.
  The select_export::prepare method has been modified to calculate
  a value of the select_export::is_ambiguous_field_term field and
  to warn if this value is true.
  The select_export::send_data method has been modified to
  avoid escaping or duplication of the field_set_char if
  is_ambiguous_field_term is true.
sql/share/errmsg.txt:
  Fixed bug #31663.
  The ER_AMBIGUOUS_FIELD_TERM warning has been added.
2007-10-23 16:16:59 +05:00
gshchepa/uchum@gleb.loc
5adc332c63 Fixed bug #31663: if the FIELDS TERMINATED BY string
in the SELECT INTO OUTFILE clause starts with a special
character (one of n, t, r, b, 0, Z or N) and ENCLOSED BY
is empty, every occurrence of this character within a
field value is duplicated.

Duplication has been avoided.
New warning message has been added: "First character of
the FIELDS TERMINATED string is ambiguous; please use
non-optional and non-empty FIELDS ENCLOSED BY".
2007-10-23 16:16:59 +05:00
unknown
c33823ba83 Merge bk-internal.mysql.com:/home/bk/mysql-5.1-runtime
into  bodhi.(none):/opt/local/work/mysql-5.1-runtime


sql/sql_class.cc:
  Auto merged
2007-10-20 01:21:20 +04:00
kostja@bodhi.(none)
62a7103a3d Merge bk-internal.mysql.com:/home/bk/mysql-5.1-runtime
into  bodhi.(none):/opt/local/work/mysql-5.1-runtime
2007-10-20 01:21:20 +04:00
unknown
079ae23003 Rename: query_error -> is_slave_error.
Add comments.


sql/ha_ndbcluster_binlog.cc:
  query_error -> slave_error
sql/handler.cc:
  query_error -> slave_error
sql/log.cc:
  query_error -> slave_error
sql/log_event.cc:
  query_error -> slave_error
sql/log_event_old.cc:
  query_error -> slave_error
sql/mysqld.cc:
  query_error -> slave_error
sql/protocol.cc:
  query_error -> slave_error
sql/slave.cc:
  query_error -> slave_error
sql/sp_head.cc:
  query_error -> slave_error
sql/sql_class.cc:
  query_error -> slave_error
sql/sql_class.h:
  Rename: query_error -> is_slave_error, to avoid confusion.
  Add commenta.
sql/sql_connect.cc:
  Rename: query_error -> is_slave_error, to avoid confusion.
  Originally it was the same code to handle init-connect and init-slave 
  mysqld options. Then init-connect implementation forked off,
  but the one who copy-pasted the code didn't change it to not
  use a replication-specific variable.
2007-10-20 01:20:38 +04:00
kostja@bodhi.(none)
7c00f8a3b4 Rename: query_error -> is_slave_error.
Add comments.
2007-10-20 01:20:38 +04:00
unknown
66cd6d0c8f Patch for BUG#31111: --read-only crashes MySQL (events fail to load).
There actually were several problems here:
  - WRITE-lock is required to load events from the mysql.event table,
    but in the read-only mode an ordinary user can not acquire it;
  - Security_context::master_access attribute was not properly
    initialized in Security_context::init(), which led to differences
    in behavior with and without debug configure options.
  - if the server failed to load events from mysql.event, it forgot to
    close the mysql.event table, that led to the coredump, described
    in the bug report.

The patch is to fix all these problems:
  - Use the super-user to acquire WRITE-lock on the mysql.even table;
  - The WRITE-lock is acquired by the event scheduler in two cases:
    - on initial loading of events from the database;
    - when an event has been executed, so its attributes should
      be updated.
    Other cases when WRITE-lock is needed for the mysql.event table
    happen under the user account. So, nothing should be changed there
    for the read-only mode. The user is able to create/update/drop
    an event only if he is a super-user.
  - Initialize Security_context::master_access;
  - Close the mysql.event table in case something went wrong.


mysql-test/r/events_bugs.result:
  Update result file.
mysql-test/t/events_bugs.test:
  A test case for BUG#31111: --read-only crashes MySQL (events fail
  to load).
sql/event_data_objects.cc:
  When the worker thread is going to drop event after the execution
  we should do it under the super-user privileges in order to be able
  to lock the mysql.event table for writing in the read-only mode.
  
  This is a system operation, where user SQL can not be executed.
  So, there is no risk in compromising security by dropping an event
  under the super-user privileges.
sql/event_db_repository.cc:
  1. Close tables if something went wrong in simple_open_n_lock_tables();
  2. As soon as the system event scheduler thread is running under
     the super-user privileges, we should always be able to acquire
     WRITE-lock on the mysql.event table. However, let's have an assert
     to check this.
sql/event_scheduler.cc:
  Run the system event scheduler thread under the super-user privileges.
  In particular, this is needed to be able to lock the mysql.event table
  for writing when the server is running in the read-only mode.
  
  The event scheduler executes only system operations and does not
  execute user SQL (this is what the worker threads for). So, there
  is no risk in compromising security by running the event scheduler
  under the super-user privileges.
sql/events.cc:
  Open the mysql.event table as the super user to be able to acquire
  WRITE-lock in the read-only mode.
sql/sql_class.cc:
  Initialize Security_context::master_acces.
2007-10-19 19:57:08 +04:00
anozdrin/alik@station.
c60397ef19 Patch for BUG#31111: --read-only crashes MySQL (events fail to load).
There actually were several problems here:
  - WRITE-lock is required to load events from the mysql.event table,
    but in the read-only mode an ordinary user can not acquire it;
  - Security_context::master_access attribute was not properly
    initialized in Security_context::init(), which led to differences
    in behavior with and without debug configure options.
  - if the server failed to load events from mysql.event, it forgot to
    close the mysql.event table, that led to the coredump, described
    in the bug report.

The patch is to fix all these problems:
  - Use the super-user to acquire WRITE-lock on the mysql.even table;
  - The WRITE-lock is acquired by the event scheduler in two cases:
    - on initial loading of events from the database;
    - when an event has been executed, so its attributes should
      be updated.
    Other cases when WRITE-lock is needed for the mysql.event table
    happen under the user account. So, nothing should be changed there
    for the read-only mode. The user is able to create/update/drop
    an event only if he is a super-user.
  - Initialize Security_context::master_access;
  - Close the mysql.event table in case something went wrong.
2007-10-19 19:57:08 +04:00
unknown
bf5bcb849f Merge lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-base
into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-rt-merge


client/mysqlcheck.c:
  Auto merged
client/mysqltest.c:
  Auto merged
libmysql/libmysql.c:
  Auto merged
mysql-test/include/mix1.inc:
  Auto merged
mysql-test/r/innodb_mysql.result:
  Auto merged
mysql-test/r/udf.result:
  Auto merged
mysql-test/t/udf.test:
  Auto merged
sql/item.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/set_var.cc:
  Auto merged
sql/sql_class.cc:
  Auto merged
sql/sql_lex.h:
  Auto merged
sql/sql_select.cc:
  Auto merged
tests/mysql_client_test.c:
  Auto merged
2007-10-18 16:57:51 -06:00
malff@lambda.hsd1.co.comcast.net.
2d6fbbda59 Merge lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-base
into  lambda.hsd1.co.comcast.net.:/home/malff/TREE/mysql-5.1-rt-merge
2007-10-18 16:57:51 -06:00
unknown
f48feae696 Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-comeng-unification
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge


BitKeeper/deleted/.del-ha_berkeley.cc:
  Auto merged
BitKeeper/deleted/.del-mysqld.vcproj~6aa7b3f9c3e28fcb:
  Auto merged
BitKeeper/triggers/post-commit:
  Auto merged
client/mysqlcheck.c:
  Auto merged
include/config-win.h:
  Auto merged
include/my_dbug.h:
  Auto merged
libmysqld/Makefile.am:
  Auto merged
mysql-test/r/func_in.result:
  Auto merged
mysql-test/r/information_schema.result:
  Auto merged
mysql-test/r/information_schema_db.result:
  Auto merged
mysql-test/t/func_in.test:
  Auto merged
mysql-test/t/information_schema.test:
  Auto merged
sql/Makefile.am:
  Auto merged
sql/ha_ndbcluster.cc:
  Auto merged
sql/item_cmpfunc.cc:
  Auto merged
sql/item_func.cc:
  Auto merged
sql/lock.cc:
  Auto merged
sql/log_event.cc:
  Auto merged
sql/repl_failsafe.cc:
  Auto merged
sql/set_var.h:
  Auto merged
sql/sp_head.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/sql_class.h:
  Auto merged
sql/sql_delete.cc:
  Auto merged
sql/sql_insert.cc:
  Auto merged
sql/sql_lex.cc:
  Auto merged
sql/sql_prepare.cc:
  Auto merged
sql/sql_repl.cc:
  Auto merged
sql/sql_view.cc:
  Auto merged
sql/structs.h:
  Auto merged
sql/table.h:
  Auto merged
storage/archive/ha_archive.cc:
  Auto merged
storage/myisam/ha_myisam.cc:
  Auto merged
storage/myisam/mi_open.c:
  Auto merged
storage/myisammrg/ha_myisammrg.cc:
  Auto merged
storage/ndb/src/common/util/File.cpp:
  Auto merged
configure.in:
  Manual merge.
sql/CMakeLists.txt:
  Manual merge.
sql/mysql_priv.h:
  Manual merge.
sql/mysqld.cc:
  Manual merge.
sql/set_var.cc:
  Manual merge.
sql/slave.cc:
  Manual merge.
sql/sql_cache.cc:
  Manual merge.
sql/sql_class.cc:
  Manual merge.
sql/sql_lex.h:
  Manual merge.
sql/sql_parse.cc:
  Manual merge.
sql/sql_select.cc:
  Manual merge.
sql/sql_show.cc:
  Manual merge.
sql/sql_table.cc:
  Manual merge.
sql/sql_update.cc:
  Manual merge.
sql/sql_yacc.yy:
  Manual merge.
2007-10-17 14:05:43 -04:00
cmiller@zippy.cornsilk.net
f3d77c1979 Merge zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-comeng-unification
into  zippy.cornsilk.net:/home/cmiller/work/mysql/mysql-5.1-recentcommmerge
2007-10-17 14:05:43 -04:00
unknown
4a0ec7864e Doxygenized comments. 2007-10-16 15:37:31 -04:00
cmiller@zippy.cornsilk.net
dee842e093 Doxygenized comments. 2007-10-16 15:37:31 -04:00
unknown
4db46e26f3 Add comments, tidy up sql_delete.cc to refer to thd->row_count_func
explicitly.


sql/sql_class.cc:
  Add comments.
sql/sql_delete.cc:
  Change syntax to make grepping easier. No semantical change.
2007-10-15 16:42:41 +04:00
kostja@bodhi.(none)
1c9e362f75 Add comments, tidy up sql_delete.cc to refer to thd->row_count_func
explicitly.
2007-10-15 16:42:41 +04:00
unknown
fb84f573ad Moved a lot of old bug fixes and safe cleanups from Maria 5.1 tree to 5.1
- Reserver namespace and place in frm for TABLE_CHECKSUM and PAGE_CHECKSUM create options
- Added syncing of directory when creating .frm files
- Portability fixes
- Added missing cast that could cause bugs
- Code cleanups
- Made some bit functions inline
- Moved things out of myisam.h to my_handler.h to make them more accessable
- Renamed some myisam variables and defines to make them more globaly usable (as they are used outside of MyISAM)
- Fixed bugs in error conditions
- Use compiler time asserts instead of run time
- Fixed indentation
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP as the old name was wrong
(Added a define for old value to ensure we don't break any old code)
Added HA_EXTRA_PREPARE_FOR_RENAME as a signal for rename (before we used a DROP signal which is wrong)
- Initialize error messages early to get better errors when mysqld or an engine fails to start
- Fix windows bug that query_performance_frequency was not initialized if registry code failed
- thread_stack -> my_thread_stack_size


BitKeeper/etc/ignore:
  added libmysqld/scheduler.cc libmysqld/sql_connect.cc libmysqld/sql_tablespace.cc
include/Makefile.am:
  Added my_bit.h
include/m_string.h:
  Added bzero_if_purify() to simplify code
include/my_base.h:
  Reserve options for the future
  Added HA_OPTION_NULL_FIELDS, HA_OPTION_PAGE_CHECKSUM, HA_CREATE_PAGE_CHECKSUM
  Added new error message HA_ERR_NEW_FILE
  Added optional new row type BLOCK_RECORD
  Renamed HA_EXTRA_PREPARE_FOR_DELETE to HA_EXTRA_PREPARE_FOR_DROP
  Added HA_EXTRA_PREARE_FOR_RENAME to inform handler we will do a rename
  (Added define to make things compatible until 6.0)
  Moved invalidator_by_filename form myisam.h
include/my_dbug.h:
  Poirtablity fix
include/my_global.h:
  Added helper macros STATIC_INLINE and MY_ERRPTR
  Added NEED_EXPLICIT_SYNC_DIR
include/my_handler.h:
  Added missing casts
  Moved some constants and macros out from myisam.h to make these generally available
  Renamed mi_compare_text() to ha_compare_text() as this function is not myisam specific
  Renamed mi_portable_sizeof_char_ptr to portable_sizeof_char_ptr
  Added registering of handler messages for better error reporting during startup
include/my_sys.h:
  Added my_sync_dir() and my_sync_dir_by_file()
  More comments
  Some indentation fixes
  Moved bit functions to my_bit.h
  Added prototype for crc32()
include/myisam.h:
  Moved things from here to my_handler.h to make them more accessable
libmysql/Makefile.shared:
  Added my_sync
mysys/array.c:
  Fixed indentation and spelling errors
  Split set_dynamic() to two functions
  Added allocate_dynamic() as a new visiable function
  (no new code, only refactoring)
mysys/mf_iocache.c:
  More DBUG
mysys/mf_keycache.c:
  More explicite ASSERT
  Removed some casts
  Fixed indentation
mysys/mf_tempfile.c:
  Fixed bug with possible dangling file descriptor
mysys/my_atomic.c:
  Use compile time asserts instead of run time
mysys/my_bit.c:
  Make most bit functions inline
mysys/my_bitmap.c:
  Added my_bit.h
mysys/my_compress.c:
  Fixed indentation
mysys/my_create.c:
  Added my_sync_by_dir()
mysys/my_delete.c:
  Added my_sync_by_dir()
mysys/my_error.c:
  init_glob_errs() is now done in my_init()
mysys/my_handler.c:
  mi_compare_text() -> ha_compare_text() as this is not MyISAM specific
  Added functions to initialize handler error messages
  Fixed indentation
  More clear usage of include files
mysys/my_init.c:
  Added my_thread_stack_size to be used by other programs
  Ensure that global error messages are always initialized
  Fix windows bug that query_performance_frequency was not initialized if registry code failed
mysys/my_open.c:
  More comments
  Removed duplicate code
mysys/my_pread.c:
  Ensure that my_errno is set even if errno is 0
mysys/my_realloc.c:
  Added comment
mysys/my_rename.c:
  Added syncing of directories
mysys/my_symlink.c:
  Added my_sync_by_dir()
mysys/my_sync.c:
  Added my_sync_dir()
   
  On recent Mac OS X, fcntl(F_FULLFSYNC) is recommended over fsync()
  (see "man fsync" on Mac OS X 10.3).
  my_sync_dir(): to sync a directory after a file creation/deletion/
  renaming; can be called directly or via MY_SYNC_DIR in my_create/
  my_delete/my_rename(). No-op except on Linux (see "man fsync" on Linux).
  my_sync_dir_from_file(): same as above, just more practical when the
  caller has a file name but no directory name ready.
  Should the #warning even be a #error? I mean do we want to release
  binaries which don't guarantee any durability?
mysys/safemalloc.c:
  Added sf_malloc_report_allocated() (Debugging aid)
sql/gen_lex_hash.cc:
  Remove inline for big function
sql/ha_partition.cc:
  HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
  prepare_for_delete -> prepare_for_rename() as this is the the time this function is called
sql/ha_partition.h:
  prepare_for_delete -> prepare_for_rename() as this is the the time this function is called
sql/handler.cc:
  ha_init_errors() is now called at startup before plugins
  This allows us to get better error messages
sql/handler.h:
  Reserve enum value for Maria
  Add future proof enum for page checksums
sql/item_func.cc:
  Include my_bit.h
sql/lex.h:
  Added future proof CREATE table options
sql/log.cc:
  Added comment
sql/mysql_priv.h:
  thread_stack moved to mysys
sql/mysqld.cc:
  thread_stack moved to mysys
  thread_stack -> my_thread_stack_size
  Initialize myisam key caches before plugins starts
  Initialize error to allow storage engine to give better error messages if init failes.
  Fixed indentation
  Group all MyISAM options together
  Added new status variable 'Opened_table_definitions' to allow one to monitor if table definition cache is too small
  Clarified some option help messages
sql/opt_range.cc:
  Removed wrong usage of SAFE_MODE (this disabled key usage for UPDATES, which was never the intention)
  Removed print if total cost in a place where it didn't have any usable value
sql/set_var.cc:
  thread_stack -> my_thread_stack
sql/sql_class.cc:
  Intialize transaction object properly
sql/sql_parse.cc:
  thread_stack -> my_thread_stack
sql/sql_select.cc:
  Include my_bit.h
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
sql/sql_show.cc:
  Simplify handling of ha_choice variables
  Added future safe PAGE_CHECKSUM option
  Addid missing 'transactional=#' in information schema
sql/sql_table.cc:
  HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_FORCE_REOPEN when doing reopen
  HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_RENAME when doing rename
  Removed not needed initialization
sql/sql_test.cc:
  thread_stack -> my_thread_stack
sql/sql_yacc.yy:
  Simplify handling of ha_choice variables
  Added future proof create table options TABLE_CHECKSUM=# & PAGE_CHECKSUM=#
sql/table.cc:
  Save page_checksum in .frm
sql/table.h:
  Added variable to hold create table option PAGE_CHECKSUM
sql/unireg.cc:
  Added syncing of directories
storage/myisam/ft_boolean_search.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/ft_eval.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/ft_nlq_search.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/ft_parser.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/ft_stopwords.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/ft_test1.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/ft_update.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/ha_myisam.cc:
  Include my_bit.h
storage/myisam/mi_check.c:
  MI_MAX_POSSIBLE_KEY_BUFF -> HA_MAX_POSSIBLE_KEY_BUFF
  mi_compare_text() -> ha_compare_text()
  Added BLOCK_RECORD to avoid compiler warnings
storage/myisam/mi_checksum.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_create.c:
  MI_MAX_POSSIBLE_KEY -> HA_MAX_POSSIBLE_KEY
  MI_MAX_KEY_BLOCK_SIZE -> HA_MAX_KEY_BLOCK_SIZE
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_dynrec.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_extra.c:
  HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
storage/myisam/mi_open.c:
  MI_MAX_POSSIBLE_KEY -> HA_MAX_POSSIBLE_KEY
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_packrec.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_range.c:
  mi_compare_text -> ha_compare_text
storage/myisam/mi_test1.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_test2.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/mi_unique.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/mi_write.c:
  mi_compare_text() -> ha_compare_text()
storage/myisam/myisamchk.c:
  Include my_bit.h
storage/myisam/myisamdef.h:
  Moved store_key_length_inc to handler.h
storage/myisam/myisampack.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisam/sp_test.c:
  mi_portable_sizeof_char_ptr -> portable_sizeof_char_ptr
storage/myisammrg/ha_myisammrg.cc:
  HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP
include/my_bit.h:
  New BitKeeper file ``include/my_bit.h''
2007-10-11 18:07:40 +03:00
monty@mysql.com/narttu.mysql.fi
7887babe69 Moved a lot of old bug fixes and safe cleanups from Maria 5.1 tree to 5.1
- Reserver namespace and place in frm for TABLE_CHECKSUM and PAGE_CHECKSUM create options
- Added syncing of directory when creating .frm files
- Portability fixes
- Added missing cast that could cause bugs
- Code cleanups
- Made some bit functions inline
- Moved things out of myisam.h to my_handler.h to make them more accessable
- Renamed some myisam variables and defines to make them more globaly usable (as they are used outside of MyISAM)
- Fixed bugs in error conditions
- Use compiler time asserts instead of run time
- Fixed indentation
HA_EXTRA_PREPARE_FOR_DELETE -> HA_EXTRA_PREPARE_FOR_DROP as the old name was wrong
(Added a define for old value to ensure we don't break any old code)
Added HA_EXTRA_PREPARE_FOR_RENAME as a signal for rename (before we used a DROP signal which is wrong)
- Initialize error messages early to get better errors when mysqld or an engine fails to start
- Fix windows bug that query_performance_frequency was not initialized if registry code failed
- thread_stack -> my_thread_stack_size
2007-10-11 18:07:40 +03:00
unknown
3ca34c102a A patch for BUG#31418: User locks misfunctioning after
mysql_change_user().

The problem was that THD::ull was not reset in THD::cleanup().

The fix is to reset it.


sql/sql_class.cc:
  Reset THD::ull after cleanup to prevent memory corruption.
tests/mysql_client_test.c:
  Add test case for BUG#31418.
2007-10-11 17:11:12 +04:00
anozdrin/alik@station.
7237c31698 A patch for BUG#31418: User locks misfunctioning after
mysql_change_user().

The problem was that THD::ull was not reset in THD::cleanup().

The fix is to reset it.
2007-10-11 17:11:12 +04:00
unknown
5597f40f7f Merge ramayana.hindu.god:/home/tsmith/m/bk/maint/50
into  ramayana.hindu.god:/home/tsmith/m/bk/maint/51


sql/sql_class.cc:
  Auto merged
2007-10-10 14:01:48 -06:00
tsmith@ramayana.hindu.god
f6d110dc20 Merge ramayana.hindu.god:/home/tsmith/m/bk/maint/50
into  ramayana.hindu.god:/home/tsmith/m/bk/maint/51
2007-10-10 14:01:48 -06:00
unknown
80ace29416 Bug #31517: Potential crash due to access of NULL thd in mark_transaction_to_rollback()
Introduced in mark_transaction_to_rollback(), part of fix for bug 24989;
fix is to check thd for NULL before using it.


sql/sql_class.cc:
  It is possible that mark_transaction_to_rollback() may be
  called in rare circumstances when thd is NULL (e.g., from
  some calls to convert_error_code_to_mysql()).  Don't use thd
  if it is NULL.
2007-10-10 14:00:57 -06:00
tsmith@ramayana.hindu.god
ced64f8582 Bug #31517: Potential crash due to access of NULL thd in mark_transaction_to_rollback()
Introduced in mark_transaction_to_rollback(), part of fix for bug 24989;
fix is to check thd for NULL before using it.
2007-10-10 14:00:57 -06:00