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mariadb/sql/authors.h
Mattias Jonsson 5196beed02 Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with 
concurrent I_S query

There were two problem:
1) MYSQL_LOCK_IGNORE_FLUSH also ignored name locks
2) there was a race between abort_and_upgrade_locks and
   alter_close_tables
   (i.e. remove_table_from_cache and
    close_data_files_and_morph_locks)

Which allowed the table to be opened with MYSQL_LOCK_IGNORE_FLUSH flag
resulting in renaming a partition that was already in use,
which could cause the table to be unusable.

Solution was to not allow IGNORE_FLUSH to skip waiting for
a named locked table.

And to not release the LOCK_open mutex between the
calls to remove_table_from_cache and
close_data_files_and_morph_locks by merging the functions
abort_and_upgrade_locks and alter_close_tables.

mysql-test/suite/parts/r/partition_debug_sync_innodb.result:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Added test result
mysql-test/suite/parts/t/partition_debug_sync_innodb-master.opt:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Added test option
mysql-test/suite/parts/t/partition_debug_sync_innodb.test:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Added test file
sql/authors.h:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Time to be acknowledged :)
sql/ha_partition.cc:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Added DEBUG_SYNC for deterministic testing
sql/mysql_priv.h:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Renamed function since merging alter_close_tables into
  abort_and_upgrade_lock.
sql/sql_base.cc:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Changed MYSQL_LOCK_IGNORE_FLUSH to not ignore name locks
  (open_placeholder).
  
  Merged alter_close_tables into abort_and_upgrade_locks
  (and added _and_close_table to the name)
  to not release LOCK_open between remove_table_from_cache
  and close_data_files_and_morph_locks.
  
  Added DEBUG_SYNC for deterministic testing.
sql/sql_partition.cc:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Removed alter_close_tables, (merged it into
  abort_and_upgrad_lock) so that LOCK_open never is released
  between remove_table_from_cache and
  close_data_files_and_morph_locks.
sql/sql_show.cc:
  Bug#50561: ALTER PARTITIONS does not have adequate lock, breaks with
  concurrent I_S query
  
  Added DEBUG_SYNC for deterministic testing
2010-03-17 15:10:41 +01:00

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/* Copyright (C) 2005-2006 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/* Structure of the name list */
struct show_table_authors_st {
const char *name;
const char *location;
const char *comment;
};
/*
Output from "SHOW AUTHORS"
If you can update it, you get to be in it :)
Don't be offended if your name is not in here, just add it!
IMPORTANT: Names should be added in alphabetical order (by last name).
Names should be encoded using UTF-8.
*/
struct show_table_authors_st show_table_authors[]= {
{ "Brian (Krow) Aker", "Seattle, WA, USA",
"Architecture, archive, federated, bunch of little stuff :)" },
{ "Venu Anuganti", "", "Client/server protocol (4.1)" },
{ "David Axmark", "Uppsala, Sweden",
"Small stuff long time ago, Monty ripped it out!" },
{ "Alexander (Bar) Barkov", "Izhevsk, Russia",
"Unicode and character sets (4.1)" },
{ "Omer BarNir", "Sunnyvale, CA, USA",
"Testing (sometimes) and general QA stuff" },
{ "Guilhem Bichot", "Bordeaux, France", "Replication (since 4.0)" },
{ "John Birrell", "", "Emulation of pthread_mutex() for OS/2" },
{ "Andreas F. Bobak", "", "AGGREGATE extension to user-defined functions" },
{ "Alexey Botchkov (Holyfoot)", "Izhevsk, Russia",
"GIS extensions (4.1), embedded server (4.1), precision math (5.0)"},
{ "Reggie Burnett", "Nashville, TN, USA", "Windows development, Connectors" },
{ "Oleksandr Byelkin", "Lugansk, Ukraine",
"Query Cache (4.0), Subqueries (4.1), Views (5.0)" },
{ "Kent Boortz", "Orebro, Sweden", "Test platform, and general build stuff" },
{ "Tim Bunce", "", "mysqlhotcopy" },
{ "Yves Carlier", "", "mysqlaccess" },
{ "Joshua Chamas", "Cupertino, CA, USA",
"Concurrent insert, extended date syntax" },
{ "Petr Chardin", "Moscow, Russia",
"Instance Manager (5.0), Server log tables (5.1)" },
{ "Wei-Jou Chen", "", "Chinese (Big5) character set" },
{ "Albert Chin-A-Young", "",
"Tru64 port, large file support, better TCP wrappers support" },
{ "Jorge del Conde", "Mexico City, Mexico", "Windows development" },
{ "Antony T. Curtis", "Norwalk, CA, USA",
"Parser, port to OS/2, storage engines and some random stuff" },
{ "Yuri Dario", "", "OS/2 port" },
{ "Andrei Elkin", "Espoo, Finland", "Replication" },
{ "Patrick Galbraith", "Sharon, NH", "Federated Engine, mysqlslap" },
{ "Sergei Golubchik", "Kerpen, Germany",
"Full-text search, precision math" },
{ "Lenz Grimmer", "Hamburg, Germany",
"Production (build and release) engineering" },
{ "Nikolay Grishakin", "Austin, TX, USA", "Testing - Server" },
{ "Wei He", "", "Chinese (GBK) character set" },
{ "Eric Herman", "Amsterdam, Netherlands", "Bug fixing - federated" },
{ "Andrey Hristov", "Walldorf, Germany", "Event scheduler (5.1)" },
{ "Alexander (Alexi) Ivanov", "St. Petersburg, Russia", "Replication" },
{ "Mattias Jonsson", "Uppsala, Sweden", "Partitioning" },
{ "Alexander (Salle) Keremidarski", "Sofia, Bulgaria",
"Bug fixing" },
{ "Mats Kindahl", "Storvreta, Sweden", "Replication" },
{ "Serge Kozlov", "Velikie Luki, Russia", "Testing - Cluster" },
{ "Hakan Küçükyılmaz", "Walldorf, Germany", "Testing - Server" },
{ "Greg (Groggy) Lehey", "Uchunga, SA, Australia", "Backup" },
{ "Matthias Leich", "Berlin, Germany", "Testing - Server" },
{ "Dmitri Lenev", "Moscow, Russia",
"Time zones support (4.1), Triggers (5.0)" },
{ "Arjen Lentz", "Brisbane, Australia",
"Documentation (2001-2004), Dutch error messages, LOG2()" },
{ "Marc Liyanage", "", "Created Mac OS X packages" },
{ "Zarko Mocnik", "", "Sorting for Slovenian language" },
{ "Per-Erik Martin", "Uppsala, Sweden", "Stored Procedures (5.0)" },
{ "Alexis Mikhailov", "", "User-defined functions" },
{ "Sinisa Milivojevic", "Larnaca, Cyprus",
"UNION (4.0), Subqueries in FROM clause (4.1), many other features" },
{ "Jonathan (Jeb) Miller", "Kyle, TX, USA",
"Testing - Cluster, Replication" },
{ "Elliot Murphy", "Cocoa, FL, USA", "Replication and backup" },
{ "Kristian Nielsen", "Copenhagen, Denmark",
"General build stuff" },
{ "Pekka Nouisiainen", "Stockholm, Sweden",
"NDB Cluster: BLOB support, character set support, ordered indexes" },
{ "Alexander Nozdrin", "Moscow, Russia",
"Bug fixing (Stored Procedures, 5.0)" },
{ "Per Eric Olsson", "", "Testing of dynamic record format" },
{ "Jonas Oreland", "Stockholm, Sweden",
"NDB Cluster, Online Backup, lots of other things" },
{ "Konstantin Osipov", "Moscow, Russia",
"Prepared statements (4.1), Cursors (5.0)" },
{ "Alexander (Sasha) Pachev", "Provo, UT, USA",
"Statement-based replication, SHOW CREATE TABLE, mysql-bench" },
{ "Irena Pancirov", "", "Port to Windows with Borland compiler" },
{ "Jan Pazdziora", "", "Czech sorting order" },
{ "Benjamin Pflugmann", "",
"Extended MERGE storage engine to handle INSERT" },
{ "Igor Romanenko", "",
"mysqldump" },
{ "Mikael Ronström", "Stockholm, Sweden",
"NDB Cluster, Partitioning (5.1), Optimizations" },
{ "Tõnu Samuel", "",
"VIO interface, other miscellaneous features" },
{ "Carsten Segieth (Pino)", "Fredersdorf, Germany", "Testing - Server"},
{ "Martin Sköld", "Stockholm, Sweden",
"NDB Cluster: Unique indexes, integration into MySQL" },
{ "Timothy Smith", "Auckland, New Zealand",
"Dynamic character sets, parts of the build system, libmysqld"},
{ "Miguel Solorzano", "Florianopolis, Santa Catarina, Brazil",
"Windows development, Windows NT service"},
{ "Punita Srivastava", "Austin, TX, USA", "Testing - Merlin"},
{ "Alexey Stroganov (Ranger)", "Lugansk, Ukraine", "Testing - Benchmarks"},
{ "Ingo Strüwing", "Berlin, Germany", "Bug fixing" },
{ "Magnus Svensson", "Öregrund, Sweden",
"NDB Cluster: Integration into MySQL, test framework" },
{ "Zeev Suraski", "", "FROM_UNIXTIME(), ENCRYPT()" },
{ "TAMITO", "",
"The _MB character set macros and UJIS and SJIS character sets" },
{ "Jani Tolonen", "Helsinki, Finland",
"mysqlimport, extensions to command-line clients, PROCEDURE ANALYSE()" },
{ "Lars Thalmann", "Stockholm, Sweden",
"Replication and cluster development" },
{ "Tomas Ulin", "Stockholm, Sweden",
"NDB Cluster: Configuration, installation" },
{ "Gianmassimo Vigazzola", "", "Initial Windows port" },
{ "Sergey Vojtovich", "Izhevsk, Russia", "Plugins infrastructure (5.1)" },
{ "Matt Wagner", "Northfield, MN, USA", "Bug fixing" },
{ "Jim Winstead Jr.", "Los Angeles, CA, USA", "Bug fixing" },
{ "Michael (Monty) Widenius", "Tusby, Finland",
"Lead developer and main author" },
{ "Peter Zaitsev", "Tacoma, WA, USA",
"SHA1(), AES_ENCRYPT(), AES_DECRYPT(), bug fixing" },
{NULL, NULL, NULL}
};
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