mariadb/storage/maria/ma_static.c
Michael Widenius ec281a3c34 Fixed some bugs in the Maria storage engine
- Changed default recovery mode from OFF to NORMAL to get automatic repair of not properly closed tables.
- Fixed a rase condition when two threads calls external_lock and thr_lock() in different order. When this happend the transaction that called external lock first
  and thr_lock() last did not see see the rows from the other transaction, even if if it had to wait in thr_lock() for other to complete.
- Fixed that one can run maria_chk on an automatcally recovered tables without warnings about too small transaction id
- Don't give warning that crashed table could not be repaired if repair was disabled (and thus not run)
- Fixed a error result from flush_key_cache() which caused a DBUG_ASSERT() when one was using concurrent reads on non transactional tables that was updated.

client/mysqldump.c:
  Add "" around error message to make it more readable
client/mysqltest.cc:
  Free environment variables
mysql-test/r/mysqldump.result:
  Updated results
mysql-test/r/openssl_1.result:
  Updated results
mysql-test/suite/maria/r/maria-recover.result:
  Updated results
mysql-test/suite/maria/r/maria3.result:
  Updated results
mysql-test/suite/maria/t/maria3.test:
  Added more test of temporary tables
storage/maria/ha_maria.cc:
  Changed default recovery mode from OFF to NORMAL to get automatic repair of not properly closed tables.
  Start transaction in ma_block_get_status() instead of in ha_maria::external_lock().
  - This fixes a rase condition when two threads calls external lock and thr_lock() in different order. When this happend the transaction that called external lock first and thr_lock() last did not see see the rows from the other transaction, even if if it had to wait in thr_lock() for other to complete.
  Store latest transaction id in controll file if recovery was done.
  - This allows one to run maria_chk on an automatcally recovered tables without warnings about too small transaction id
storage/maria/ha_maria.h:
  Don't give warning that crashed table could not be repaired if repair was disabled (and thus not run)
storage/maria/ma_blockrec.h:
  Added new function "_ma_block_get_status_no_versioning()"
storage/maria/ma_init.c:
  Added hook to create trn in ma_block_get_status() if we are using MariaDB
storage/maria/ma_open.c:
  Ensure we call _ma_block_get_status_no_versioning() for transactional tables without versioning (like tables with fulltext)
storage/maria/ma_pagecache.c:
  Allow one to flush blocks that are pinned for read.
  This fixed a error result from flush_key_cache() which caused a DBUG_ASSERT() when one was using concurrent reads on non transactional tables that was updated.
storage/maria/ma_recovery.c:
  Set maria_recovery_changed_data to 1 if recover changed something.
  Set max_trid_in_control_file to max found trn if we found a bigger trn.
  The allows will ensure that the control file is up to date after recovery which allows one to run maria_chk on the tables without warnings about too big trn
storage/maria/ma_state.c:
  Call maria_create_trn_hook() in _ma_setup_live_state() instead of ha_maria::external_lock()
  This ensures that 'state' and trn are in sync and thus fixes the race condition mentioned for ha_maria.cc
storage/maria/ma_static.c:
  Added maria_create_trn_hook() and maria_recovery_changed_data
storage/maria/maria_def.h:
  Added MARIA_HANDLER->external_ptr, which is used to hold MariaDB thd.
  Added some new external variables
  Removed reference to non existing function: maria_concurrent_inserts()
2010-06-14 01:13:32 +03:00

109 lines
4 KiB
C

/* Copyright (C) 2006 MySQL AB & MySQL Finland AB & TCX DataKonsult 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/*
Static variables for MARIA library. All definied here for easy making of
a shared library
*/
#ifndef _global_h
#include "maria_def.h"
#include "trnman.h"
#endif
LIST *maria_open_list=0;
uchar maria_file_magic[]=
{ (uchar) 254, (uchar) 254, (uchar) 9, '\003', };
uchar maria_pack_file_magic[]=
{ (uchar) 254, (uchar) 254, (uchar) 10, '\001', };
/* Unique number for this maria instance */
uchar maria_uuid[MY_UUID_SIZE];
uint maria_quick_table_bits=9;
ulong maria_block_size= MARIA_KEY_BLOCK_LENGTH;
my_bool maria_flush= 0, maria_single_user= 0;
my_bool maria_delay_key_write= 0, maria_page_checksums= 1;
my_bool maria_inited= FALSE;
my_bool maria_in_ha_maria= FALSE; /* If used from ha_maria or not */
my_bool maria_recovery_changed_data= 0;
pthread_mutex_t THR_LOCK_maria;
#if defined(THREAD) && !defined(DONT_USE_RW_LOCKS)
ulong maria_concurrent_insert= 2;
#else
ulong maria_concurrent_insert= 0;
#endif
my_off_t maria_max_temp_length= MAX_FILE_SIZE;
ulong maria_bulk_insert_tree_size=8192*1024;
ulong maria_data_pointer_size= 4;
PAGECACHE maria_pagecache_var;
PAGECACHE *maria_pagecache= &maria_pagecache_var;
PAGECACHE maria_log_pagecache_var;
PAGECACHE *maria_log_pagecache= &maria_log_pagecache_var;
MY_TMPDIR *maria_tmpdir; /* Tempdir for redo */
char *maria_data_root;
HASH maria_stored_state;
int (*maria_create_trn_hook)(MARIA_HA *);
/**
@brief when transactionality does not matter we can use this transaction
Used in external programs like ma_test*, and also internally inside
libmaria when there is no transaction around and the operation isn't
transactional (CREATE/DROP/RENAME/OPTIMIZE/REPAIR).
*/
TRN dummy_transaction_object;
/* a WT_RESOURCE_TYPE for transactions waiting on a unique key conflict */
WT_RESOURCE_TYPE ma_rc_dup_unique={ wt_resource_id_memcmp, 0};
/* Enough for comparing if number is zero */
uchar maria_zero_string[]= {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
/*
read_vec[] is used for converting between P_READ_KEY.. and SEARCH_
Position is , == , >= , <= , > , <
*/
uint32 maria_read_vec[]=
{
SEARCH_FIND, /* HA_READ_KEY_EXACT */
SEARCH_FIND | SEARCH_BIGGER, /* HA_READ_KEY_OR_NEXT */
SEARCH_FIND | SEARCH_SMALLER, /* HA_READ_KEY_OR_PREV */
SEARCH_NO_FIND | SEARCH_BIGGER, /* HA_READ_AFTER_KEY */
SEARCH_NO_FIND | SEARCH_SMALLER, /* HA_READ_BEFORE_KEY */
SEARCH_FIND | SEARCH_PART_KEY, /* HA_READ_PREFIX */
SEARCH_LAST, /* HA_READ_PREFIX_LAST */
SEARCH_LAST | SEARCH_SMALLER, /* HA_READ_PREFIX_LAST_OR_PREV */
MBR_CONTAIN, /* HA_READ_MBR_CONTAIN */
MBR_INTERSECT, /* HA_READ_MBR_INTERSECT */
MBR_WITHIN, /* HA_READ_MBR_WITHIN */
MBR_DISJOINT, /* HA_READ_MBR_DISJOINT */
MBR_EQUAL /* HA_READ_MBR_EQUAL */
};
uint32 maria_readnext_vec[]=
{
SEARCH_BIGGER, SEARCH_BIGGER, SEARCH_SMALLER, SEARCH_BIGGER, SEARCH_SMALLER,
SEARCH_BIGGER, SEARCH_SMALLER, SEARCH_SMALLER
};
static int always_valid(const char *filename __attribute__((unused)))
{
return 0;
}
int (*maria_test_invalid_symlink)(const char *filename)= always_valid;