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Fix bug #54678, InnoDB, TRUNCATE, ALTER, I_S SELECT, crash or deadlock

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rb://399 approved by Sunny Bains
This commit is contained in:
Jimmy Yang
2010-08-04 03:37:44 -07:00
parent 04970a2ff1
commit ad90d1942e
4 changed files with 77 additions and 0 deletions
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14
storage/innodb_plugin/row/row0mysql.c
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@ -2766,6 +2766,15 @@ row_truncate_table_for_mysql(
trx->table_id = table->id;
/* Lock all index trees for this table, as we will
truncate the table/index and possibly change their metadata.
All DML/DDL are blocked by table level lock, with
a few exceptions such as queries into information schema
about the table, MySQL could try to access index stats
for this kind of query, we need to use index locks to
sync up */
dict_table_x_lock_indexes(table);
if (table->space && !table->dir_path_of_temp_table) {
/* Discard and create the single-table tablespace. */
ulint space = table->space;
@ -2782,6 +2791,7 @@ row_truncate_table_for_mysql(
|| fil_create_new_single_table_tablespace(
space, table->name, FALSE, flags,
FIL_IBD_FILE_INITIAL_SIZE) != DB_SUCCESS) {
dict_table_x_unlock_indexes(table);
ut_print_timestamp(stderr);
fprintf(stderr,
" InnoDB: TRUNCATE TABLE %s failed to"
@ -2885,6 +2895,10 @@ next_rec:
mem_heap_free(heap);
/* Done with index truncation, release index tree locks,
subsequent work relates to table level metadata change */
dict_table_x_unlock_indexes(table);
dict_hdr_get_new_id(&new_id, NULL, NULL);
info = pars_info_create();