diff options
Diffstat (limited to 'storage/innobase/handler/ha_innodb.cc')
-rw-r--r-- | storage/innobase/handler/ha_innodb.cc | 245 |
1 files changed, 207 insertions, 38 deletions
diff --git a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc index 524bd8ac828..b15212f74a7 100644 --- a/storage/innobase/handler/ha_innodb.cc +++ b/storage/innobase/handler/ha_innodb.cc @@ -72,6 +72,7 @@ with this program; if not, write to the Free Software Foundation, Inc., /* Include necessary InnoDB headers */ extern "C" { #include "univ.i" +#include "buf0lru.h" #include "btr0sea.h" #include "os0file.h" #include "os0thread.h" @@ -106,6 +107,9 @@ extern "C" { #include "i_s.h" #ifndef MYSQL_SERVER +# ifndef MYSQL_PLUGIN_IMPORT +# define MYSQL_PLUGIN_IMPORT /* nothing */ +# endif /* MYSQL_PLUGIN_IMPORT */ /* This is needed because of Bug #3596. Let us hope that pthread_mutex_t is defined the same in both builds: the MySQL server and the InnoDB plugin. */ extern MYSQL_PLUGIN_IMPORT pthread_mutex_t LOCK_thread_count; @@ -152,6 +156,10 @@ static ulong innobase_write_io_threads; static long long innobase_buffer_pool_size, innobase_log_file_size; +/** Percentage of the buffer pool to reserve for 'old' blocks. +Connected to buf_LRU_old_ratio. */ +static uint innobase_old_blocks_pct; + /* The default values for the following char* start-up parameters are determined in innobase_init below: */ @@ -166,9 +174,7 @@ file formats in the configuration file, but can only be set to any of the supported file formats during runtime. */ static char* innobase_file_format_check = NULL; -/* The following has a misleading name: starting from 4.0.5, this also -affects Windows: */ -static char* innobase_unix_file_flush_method = NULL; +static char* innobase_file_flush_method = NULL; /* Below we have boolean-valued start-up parameters, and their default values */ @@ -214,15 +220,34 @@ static void free_share(INNOBASE_SHARE *share); static int innobase_close_connection(handlerton *hton, THD* thd); static int innobase_commit(handlerton *hton, THD* thd, bool all); static int innobase_rollback(handlerton *hton, THD* thd, bool all); -static int innobase_rollback_to_savepoint(handlerton *hton, THD* thd, +static int innobase_rollback_to_savepoint(handlerton *hton, THD* thd, void *savepoint); static int innobase_savepoint(handlerton *hton, THD* thd, void *savepoint); -static int innobase_release_savepoint(handlerton *hton, THD* thd, +static int innobase_release_savepoint(handlerton *hton, THD* thd, void *savepoint); static handler *innobase_create_handler(handlerton *hton, TABLE_SHARE *table, MEM_ROOT *mem_root); +/*********************************************************************** +This function checks each index name for a table against reserved +system default primary index name 'GEN_CLUST_INDEX'. If a name matches, +this function pushes an error message to the client, and returns true. */ +static +bool +innobase_index_name_is_reserved( +/*============================*/ + /* out: true if index name matches a + reserved name */ + const trx_t* trx, /* in: InnoDB transaction handle */ + const TABLE* form, /* in: information on table + columns and indexes */ + const char* norm_name); /* in: table name */ + +/* "GEN_CLUST_INDEX" is the name reserved for Innodb default +system primary index. */ +static const char innobase_index_reserve_name[]= "GEN_CLUST_INDEX"; + /** @brief Initialize the default value of innodb_commit_concurrency. Once InnoDB is running, the innodb_commit_concurrency must not change @@ -492,10 +517,10 @@ static SHOW_VAR innodb_status_variables[]= { (char*) &export_vars.innodb_buffer_pool_pages_misc, SHOW_LONG}, {"buffer_pool_pages_total", (char*) &export_vars.innodb_buffer_pool_pages_total, SHOW_LONG}, - {"buffer_pool_read_ahead_rnd", - (char*) &export_vars.innodb_buffer_pool_read_ahead_rnd, SHOW_LONG}, - {"buffer_pool_read_ahead_seq", - (char*) &export_vars.innodb_buffer_pool_read_ahead_seq, SHOW_LONG}, + {"buffer_pool_read_ahead", + (char*) &export_vars.innodb_buffer_pool_read_ahead, SHOW_LONG}, + {"buffer_pool_read_ahead_evicted", + (char*) &export_vars.innodb_buffer_pool_read_ahead_evicted, SHOW_LONG}, {"buffer_pool_read_requests", (char*) &export_vars.innodb_buffer_pool_read_requests, SHOW_LONG}, {"buffer_pool_reads", @@ -865,17 +890,14 @@ convert_error_code_to_mysql( return(ER_PRIMARY_CANT_HAVE_NULL); case DB_TOO_MANY_CONCURRENT_TRXS: - /* Once MySQL add the appropriate code to errmsg.txt then - we can get rid of this #ifdef. NOTE: The code checked by - the #ifdef is the suggested name for the error condition - and the actual error code name could very well be different. - This will require some monitoring, ie. the status - of this request on our part.*/ -#ifdef ER_TOO_MANY_CONCURRENT_TRXS - return(ER_TOO_MANY_CONCURRENT_TRXS); -#else + /* New error code HA_ERR_TOO_MANY_CONCURRENT_TRXS is only + available in 5.1.38 and later, but the plugin should still + work with previous versions of MySQL. */ +#ifdef HA_ERR_TOO_MANY_CONCURRENT_TRXS + return(HA_ERR_TOO_MANY_CONCURRENT_TRXS); +#else /* HA_ERR_TOO_MANY_CONCURRENT_TRXS */ return(HA_ERR_RECORD_FILE_FULL); -#endif +#endif /* HA_ERR_TOO_MANY_CONCURRENT_TRXS */ case DB_UNSUPPORTED: return(HA_ERR_UNSUPPORTED); } @@ -949,7 +971,23 @@ innobase_get_cset_width( *mbminlen = cs->mbminlen; *mbmaxlen = cs->mbmaxlen; } else { - ut_a(cset == 0); + THD* thd = current_thd; + + if (thd && thd_sql_command(thd) == SQLCOM_DROP_TABLE) { + + /* Fix bug#46256: allow tables to be dropped if the + collation is not found, but issue a warning. */ + if ((global_system_variables.log_warnings) + && (cset != 0)){ + + sql_print_warning( + "Unknown collation #%lu.", cset); + } + } else { + + ut_a(cset == 0); + } + *mbminlen = *mbmaxlen = 0; } } @@ -2173,7 +2211,7 @@ innobase_change_buffering_inited_ok: /* --------------------------------------------------*/ - srv_file_flush_method_str = innobase_unix_file_flush_method; + srv_file_flush_method_str = innobase_file_flush_method; srv_n_log_groups = (ulint) innobase_mirrored_log_groups; srv_n_log_files = (ulint) innobase_log_files_in_group; @@ -2228,6 +2266,9 @@ innobase_change_buffering_inited_ok: ut_a(0 == strcmp(my_charset_latin1.name, "latin1_swedish_ci")); srv_latin1_ordering = my_charset_latin1.sort_order; + innobase_old_blocks_pct = buf_LRU_old_ratio_update( + innobase_old_blocks_pct, FALSE); + innobase_commit_concurrency_init_default(); /* Since we in this module access directly the fields of a trx @@ -2481,6 +2522,19 @@ retry: } } + /* The following calls to read the MySQL binary log + file name and the position return consistent results: + 1) Other InnoDB transactions cannot intervene between + these calls as we are holding prepare_commit_mutex. + 2) Binary logging of other engines is not relevant + to InnoDB as all InnoDB requires is that committing + InnoDB transactions appear in the same order in the + MySQL binary log as they appear in InnoDB logs. + 3) A MySQL log file rotation cannot happen because + MySQL protects against this by having a counter of + transactions in prepared state and it only allows + a rotation when the counter drops to zero. See + LOCK_prep_xids and COND_prep_xids in log.cc. */ trx->mysql_log_file_name = mysql_bin_log_file_name(); trx->mysql_log_offset = (ib_int64_t) mysql_bin_log_file_pos(); @@ -3127,7 +3181,7 @@ retry: if (is_part) { sql_print_error("Failed to open table %s after " - "%lu attemtps.\n", norm_name, + "%lu attempts.\n", norm_name, retries); } @@ -5028,6 +5082,11 @@ ha_innobase::index_read( index = prebuilt->index; + if (UNIV_UNLIKELY(index == NULL)) { + prebuilt->index_usable = FALSE; + DBUG_RETURN(HA_ERR_CRASHED); + } + /* Note that if the index for which the search template is built is not necessarily prebuilt->index, but can also be the clustered index */ @@ -5187,6 +5246,7 @@ ha_innobase::change_active_index( if (UNIV_UNLIKELY(!prebuilt->index)) { sql_print_warning("InnoDB: change_active_index(%u) failed", keynr); + prebuilt->index_usable = FALSE; DBUG_RETURN(1); } @@ -5679,6 +5739,28 @@ create_table_def( } } + /* First check whether the column to be added has a + system reserved name. */ + if (dict_col_name_is_reserved(field->field_name)){ + push_warning_printf( + (THD*) trx->mysql_thd, + MYSQL_ERROR::WARN_LEVEL_ERROR, + ER_CANT_CREATE_TABLE, + "Error creating table '%s' with " + "column name '%s'. '%s' is a " + "reserved name. Please try to " + "re-create the table with a " + "different column name.", + table->name, (char*) field->field_name, + (char*) field->field_name); + + dict_mem_table_free(table); + trx_commit_for_mysql(trx); + + error = DB_ERROR; + goto error_ret; + } + dict_mem_table_add_col(table, table->heap, (char*) field->field_name, col_type, @@ -5692,6 +5774,7 @@ create_table_def( error = row_create_table_for_mysql(table, trx); +error_ret: error = convert_error_code_to_mysql(error, flags, NULL); DBUG_RETURN(error); @@ -5730,6 +5813,9 @@ create_index( n_fields = key->key_parts; + /* Assert that "GEN_CLUST_INDEX" cannot be used as non-primary index */ + ut_a(innobase_strcasecmp(key->name, innobase_index_reserve_name) != 0); + ind_type = 0; if (key_num == form->s->primary_key) { @@ -5838,8 +5924,8 @@ create_clustered_index_when_no_primary( /* We pass 0 as the space id, and determine at a lower level the space id where to store the table */ - - index = dict_mem_index_create(table_name, "GEN_CLUST_INDEX", + index = dict_mem_index_create(table_name, + innobase_index_reserve_name, 0, DICT_CLUSTERED, 0); error = row_create_index_for_mysql(index, trx, NULL); @@ -6265,14 +6351,6 @@ ha_innobase::create( flags = DICT_TF_COMPACT; } - error = create_table_def(trx, form, norm_name, - create_info->options & HA_LEX_CREATE_TMP_TABLE ? name2 : NULL, - flags); - - if (error) { - goto cleanup; - } - /* Look for a primary key */ primary_key_no= (form->s->primary_key != MAX_KEY ? @@ -6284,6 +6362,22 @@ ha_innobase::create( ut_a(primary_key_no == -1 || primary_key_no == 0); + /* Check for name conflicts (with reserved name) for + any user indices to be created. */ + if (innobase_index_name_is_reserved(trx, form, norm_name)) { + error = -1; + goto cleanup; + } + + error = create_table_def(trx, form, norm_name, + create_info->options & HA_LEX_CREATE_TMP_TABLE ? name2 : NULL, + flags); + + if (error) { + goto cleanup; + } + + /* Create the keys */ if (form->s->keys == 0 || primary_key_no == -1) { @@ -8468,6 +8562,7 @@ ha_innobase::store_lock( && isolation_level != TRX_ISO_SERIALIZABLE && (lock_type == TL_READ || lock_type == TL_READ_NO_INSERT) && (sql_command == SQLCOM_INSERT_SELECT + || sql_command == SQLCOM_REPLACE_SELECT || sql_command == SQLCOM_UPDATE || sql_command == SQLCOM_CREATE_TABLE)) { @@ -8475,10 +8570,11 @@ ha_innobase::store_lock( option set or this session is using READ COMMITTED isolation level and isolation level of the transaction is not set to serializable and MySQL is doing - INSERT INTO...SELECT or UPDATE ... = (SELECT ...) or - CREATE ... SELECT... without FOR UPDATE or - IN SHARE MODE in select, then we use consistent - read for select. */ + INSERT INTO...SELECT or REPLACE INTO...SELECT + or UPDATE ... = (SELECT ...) or CREATE ... + SELECT... without FOR UPDATE or IN SHARE + MODE in select, then we use consistent read + for select. */ prebuilt->select_lock_type = LOCK_NONE; prebuilt->stored_select_lock_type = LOCK_NONE; @@ -9634,6 +9730,25 @@ innodb_adaptive_hash_index_update( } } +/****************************************************************//** +Update the system variable innodb_old_blocks_pct using the "saved" +value. This function is registered as a callback with MySQL. */ +static +void +innodb_old_blocks_pct_update( +/*=========================*/ + THD* thd, /*!< in: thread handle */ + struct st_mysql_sys_var* var, /*!< in: pointer to + system variable */ + void* var_ptr,/*!< out: where the + formal string goes */ + const void* save) /*!< in: immediate result + from check function */ +{ + innobase_old_blocks_pct = buf_LRU_old_ratio_update( + *static_cast<const uint*>(save), TRUE); +} + /*************************************************************//** Check if it is a valid value of innodb_change_buffering. This function is registered as a callback with MySQL. @@ -9707,6 +9822,46 @@ static int show_innodb_vars(THD *thd, SHOW_VAR *var, char *buff) return 0; } +/*********************************************************************** +This function checks each index name for a table against reserved +system default primary index name 'GEN_CLUST_INDEX'. If a name matches, +this function pushes an error message to the client, and returns true. */ +static +bool +innobase_index_name_is_reserved( +/*============================*/ + /* out: true if an index name + matches the reserved name */ + const trx_t* trx, /* in: InnoDB transaction handle */ + const TABLE* form, /* in: information on table + columns and indexes */ + const char* norm_name) /* in: table name */ +{ + KEY* key; + uint key_num; /* index number */ + + for (key_num = 0; key_num < form->s->keys; key_num++) { + key = form->key_info + key_num; + + if (innobase_strcasecmp(key->name, + innobase_index_reserve_name) == 0) { + /* Push warning to mysql */ + push_warning_printf((THD*) trx->mysql_thd, + MYSQL_ERROR::WARN_LEVEL_ERROR, + ER_CANT_CREATE_TABLE, + "Cannot Create Index with name " + "'%s'. The name is reserved " + "for the system default primary " + "index.", + innobase_index_reserve_name); + + return(true); + } + } + + return(false); +} + static SHOW_VAR innodb_status_variables_export[]= { {"Innodb", (char*) &show_innodb_vars, SHOW_FUNC}, {NullS, NullS, SHOW_LONG} @@ -9775,7 +9930,7 @@ static MYSQL_SYSVAR_ULONG(flush_log_at_trx_commit, srv_flush_log_at_trx_commit, " or 2 (write at commit, flush once per second).", NULL, NULL, 1, 0, 2, 0); -static MYSQL_SYSVAR_STR(flush_method, innobase_unix_file_flush_method, +static MYSQL_SYSVAR_STR(flush_method, innobase_file_flush_method, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, "With which method to flush data.", NULL, NULL, NULL); @@ -9871,7 +10026,7 @@ static MYSQL_SYSVAR_ULONG(concurrency_tickets, srv_n_free_tickets_to_enter, NULL, NULL, 500L, 1L, ~0L, 0); static MYSQL_SYSVAR_LONG(file_io_threads, innobase_file_io_threads, - PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, + PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY | PLUGIN_VAR_NOSYSVAR, "Number of file I/O threads in InnoDB.", NULL, NULL, 4, 4, 64, 0); @@ -9910,6 +10065,18 @@ static MYSQL_SYSVAR_LONG(mirrored_log_groups, innobase_mirrored_log_groups, "Number of identical copies of log groups we keep for the database. Currently this should be set to 1.", NULL, NULL, 1, 1, 10, 0); +static MYSQL_SYSVAR_UINT(old_blocks_pct, innobase_old_blocks_pct, + PLUGIN_VAR_RQCMDARG, + "Percentage of the buffer pool to reserve for 'old' blocks.", + NULL, innodb_old_blocks_pct_update, 100 * 3 / 8, 5, 95, 0); + +static MYSQL_SYSVAR_UINT(old_blocks_time, buf_LRU_old_threshold_ms, + PLUGIN_VAR_RQCMDARG, + "Move blocks to the 'new' end of the buffer pool if the first access" + " was at least this many milliseconds ago." + " The timeout is disabled if 0 (the default).", + NULL, NULL, 0, 0, UINT_MAX32, 0); + static MYSQL_SYSVAR_LONG(open_files, innobase_open_files, PLUGIN_VAR_RQCMDARG | PLUGIN_VAR_READONLY, "How many files at the maximum InnoDB keeps open at the same time.", @@ -10008,6 +10175,8 @@ static struct st_mysql_sys_var* innobase_system_variables[]= { MYSQL_SYSVAR(adaptive_flushing), MYSQL_SYSVAR(max_purge_lag), MYSQL_SYSVAR(mirrored_log_groups), + MYSQL_SYSVAR(old_blocks_pct), + MYSQL_SYSVAR(old_blocks_time), MYSQL_SYSVAR(open_files), MYSQL_SYSVAR(rollback_on_timeout), MYSQL_SYSVAR(stats_on_metadata), |