From 22864b86b2bdefb411decb8b55fc56cc6aa36065 Mon Sep 17 00:00:00 2001 From: Sergey Vojtovich Date: Thu, 1 Apr 2010 15:34:53 +0400 Subject: [PATCH] Applying InnoDB snapshot Detailed revision comments: r6539 | marko | 2010-02-01 11:31:12 +0200 (Mon, 01 Feb 2010) | 75 lines branches/zip: Merge revisions 6471:6538 from branches/5.1: ------------------------------------------------------------------------ r6488 | sunny | 2010-01-21 02:55:08 +0200 (Thu, 21 Jan 2010) | 2 lines Changed paths: M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test branches/5.1: Factor out test for bug#44030 from innodb-autoinc.test into a separate test/result files. ------------------------------------------------------------------------ r6489 | sunny | 2010-01-21 02:57:50 +0200 (Thu, 21 Jan 2010) | 2 lines Changed paths: A /branches/5.1/mysql-test/innodb-autoinc-44030.result A /branches/5.1/mysql-test/innodb-autoinc-44030.test branches/5.1: Factor out test for bug#44030 from innodb-autoinc.test into a separate test/result files. ------------------------------------------------------------------------ r6492 | sunny | 2010-01-21 09:38:35 +0200 (Thu, 21 Jan 2010) | 1 line Changed paths: M /branches/5.1/mysql-test/innodb-autoinc-44030.test branches/5.1: Add reference to bug#47621 in the comment. ------------------------------------------------------------------------ r6535 | sunny | 2010-01-30 00:08:40 +0200 (Sat, 30 Jan 2010) | 11 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc branches/5.1: Undo the change from r6424. We need to return DB_SUCCESS even if we were unable to initialize the tabe autoinc value. This is required for the open to succeed. The only condition we currently treat as a hard error is if the autoinc field instance passed in by MySQL is NULL. Previously if the table autoinc value was 0 and the next value was requested we had an assertion that would fail. Change that assertion and treat a value of 0 to mean that the autoinc system is unavailable. Generation of next value will now return failure. rb://237 ------------------------------------------------------------------------ r6536 | sunny | 2010-01-30 00:13:42 +0200 (Sat, 30 Jan 2010) | 6 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test branches/5.1: Check *first_value everytime against the column max value and set *first_value to next autoinc if it's > col max value. ie. not rely on what is passed in from MySQL. [49497] Error 1467 (ER_AUTOINC_READ_FAILED) on inserting a negative value rb://236 ------------------------------------------------------------------------ r6537 | sunny | 2010-01-30 00:35:00 +0200 (Sat, 30 Jan 2010) | 2 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test branches/5.1: Undo r6536. ------------------------------------------------------------------------ r6538 | sunny | 2010-01-30 00:43:06 +0200 (Sat, 30 Jan 2010) | 6 lines Changed paths: M /branches/5.1/handler/ha_innodb.cc M /branches/5.1/mysql-test/innodb-autoinc.result M /branches/5.1/mysql-test/innodb-autoinc.test branches/5.1: Check *first_value every time against the column max value and set *first_value to next autoinc if it's > col max value. ie. not rely on what is passed in from MySQL. [49497] Error 1467 (ER_AUTOINC_READ_FAILED) on inserting a negative value rb://236 ------------------------------------------------------------------------ --- storage/innodb_plugin/handler/ha_innodb.cc | 54 +++++++++++++++------- 1 file changed, 38 insertions(+), 16 deletions(-) diff --git a/storage/innodb_plugin/handler/ha_innodb.cc b/storage/innodb_plugin/handler/ha_innodb.cc index 9ca2471a68f..d2aab9e31ad 100644 --- a/storage/innodb_plugin/handler/ha_innodb.cc +++ b/storage/innodb_plugin/handler/ha_innodb.cc @@ -3266,9 +3266,9 @@ ha_innobase::innobase_initialize_autoinc() auto_inc = innobase_get_int_col_max_value(field); } else { /* We have no idea what's been passed in to us as the - autoinc column. We set it to the MAX_INT of our table - autoinc type. */ - auto_inc = 0xFFFFFFFFFFFFFFFFULL; + autoinc column. We set it to the 0, effectively disabling + updates to the table. */ + auto_inc = 0; ut_print_timestamp(stderr); fprintf(stderr, " InnoDB: Unable to determine the AUTOINC " @@ -3277,7 +3277,7 @@ ha_innobase::innobase_initialize_autoinc() if (srv_force_recovery >= SRV_FORCE_NO_IBUF_MERGE) { /* If the recovery level is set so high that writes - are disabled we force the AUTOINC counter to the MAX + are disabled we force the AUTOINC counter to 0 value effectively disabling writes to the table. Secondly, we avoid reading the table in case the read results in failure due to a corrupted table/index. @@ -3286,7 +3286,10 @@ ha_innobase::innobase_initialize_autoinc() tables can be dumped with minimal hassle. If an error were returned in this case, the first attempt to read the table would fail and subsequent SELECTs would succeed. */ + auto_inc = 0; } else if (field == NULL) { + /* This is a far more serious error, best to avoid + opening the table and return failure. */ my_error(ER_AUTOINC_READ_FAILED, MYF(0)); } else { dict_index_t* index; @@ -3315,7 +3318,7 @@ ha_innobase::innobase_initialize_autoinc() "InnoDB: Unable to find the AUTOINC column " "%s in the InnoDB table %s.\n" "InnoDB: We set the next AUTOINC column " - "value to the maximum possible value,\n" + "value to 0,\n" "InnoDB: in effect disabling the AUTOINC " "next value generation.\n" "InnoDB: You can either set the next " @@ -3324,7 +3327,13 @@ ha_innobase::innobase_initialize_autoinc() "recreating the table.\n", col_name, index->table->name); - my_error(ER_AUTOINC_READ_FAILED, MYF(0)); + /* This will disable the AUTOINC generation. */ + auto_inc = 0; + + /* We want the open to succeed, so that the user can + take corrective action. ie. reads should succeed but + updates should fail. */ + err = DB_SUCCESS; break; default: /* row_search_max_autoinc() should only return @@ -4594,11 +4603,17 @@ no_commit: prebuilt->autoinc_error = DB_SUCCESS; if ((error = update_auto_increment())) { - /* We don't want to mask autoinc overflow errors. */ - if (prebuilt->autoinc_error != DB_SUCCESS) { - error = (int) prebuilt->autoinc_error; + /* Handle the case where the AUTOINC sub-system + failed during initialization. */ + if (prebuilt->autoinc_error == DB_UNSUPPORTED) { + error_result = ER_AUTOINC_READ_FAILED; + /* Set the error message to report too. */ + my_error(ER_AUTOINC_READ_FAILED, MYF(0)); + goto func_exit; + } else if (prebuilt->autoinc_error != DB_SUCCESS) { + error = (int) prebuilt->autoinc_error; goto report_error; } @@ -8954,7 +8969,10 @@ ha_innobase::innobase_get_autoinc( *value = dict_table_autoinc_read(prebuilt->table); /* It should have been initialized during open. */ - ut_a(*value != 0); + if (*value == 0) { + prebuilt->autoinc_error = DB_UNSUPPORTED; + dict_table_autoinc_unlock(prebuilt->table); + } } return(prebuilt->autoinc_error); @@ -9034,6 +9052,11 @@ ha_innobase::get_auto_increment( invoking this method. So we are not sure if it's guaranteed to be 0 or not. */ + /* We need the upper limit of the col type to check for + whether we update the table autoinc counter or not. */ + ulonglong col_max_value = innobase_get_int_col_max_value( + table->next_number_field); + /* Called for the first time ? */ if (trx->n_autoinc_rows == 0) { @@ -9050,6 +9073,11 @@ ha_innobase::get_auto_increment( /* Not in the middle of a mult-row INSERT. */ } else if (prebuilt->autoinc_last_value == 0) { set_if_bigger(*first_value, autoinc); + /* Check for -ve values. */ + } else if (*first_value > col_max_value && trx->n_autoinc_rows > 0) { + /* Set to next logical value. */ + ut_a(autoinc > trx->n_autoinc_rows); + *first_value = (autoinc - trx->n_autoinc_rows) - 1; } *nb_reserved_values = trx->n_autoinc_rows; @@ -9060,12 +9088,6 @@ ha_innobase::get_auto_increment( ulonglong need; ulonglong current; ulonglong next_value; - ulonglong col_max_value; - - /* We need the upper limit of the col type to check for - whether we update the table autoinc counter or not. */ - col_max_value = innobase_get_int_col_max_value( - table->next_number_field); current = *first_value > col_max_value ? autoinc : *first_value; need = *nb_reserved_values * increment;