Many files:

  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x


sql/ha_innodb.cc:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/sql_class.cc:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/sql_parse.cc:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/sql_table.cc:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/ha_innodb.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/handler.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/lex.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/mysql_priv.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/sql_class.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/sql_lex.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
sql/sql_yacc.yy:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/ha/ha0ha.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/ha/hash0hash.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/buf/buf0buf.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/buf/buf0flu.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/buf/buf0lru.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/buf/buf0rea.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/btr/btr0btr.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/btr/btr0sea.c:
  Track crash in buf_LRU_block_remove_hashed_page + 1807 reported in MySQL-3.23.5x
innobase/fil/fil0fil.c:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/buf0buf.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/ha0ha.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/hash0hash.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/row0mysql.h:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/buf0buf.ic:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/ha0ha.ic:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/include/ibuf0ibuf.ic:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/page/page0page.c:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/row/row0mysql.c:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/row/row0purge.c:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/row/row0uins.c:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE
innobase/row/row0umod.c:
  ALTER TABLE ... DISCARD/IMPORT TABLESPACE

1 files changed, 39 insertions, 0 deletions

diff --git a/innobase/include/row0mysql.h b/innobase/include/row0mysql.h
index 1964f53dabb..fade3709631 100644
--- a/innobase/include/row0mysql.h
+++ b/innobase/include/row0mysql.h
@@ -339,6 +339,45 @@ row_drop_table_for_mysql(
 	char*	name,	/* in: table name */
 	trx_t*	trx);	/* in: transaction handle */
 /*************************************************************************
+Discards the tablespace of a table which stored in an .ibd file. Discarding
+means that this function deletes the .ibd file and assigns a new table id for
+the table. Also the flag table->ibd_file_missing is set TRUE.
+
+How do we prevent crashes caused by ongoing operations on the table? Old
+operations could try to access non-existent pages.
+
+1) SQL queries, INSERT, SELECT, ...: we must get an exclusive MySQL table lock
+on the table before we can do DISCARD TABLESPACE. Then there are no running
+queries on the table.
+2) Purge and rollback: we assign a new table id for the table. Since purge and
+rollback look for the table based on the table id, they see the table as
+'dropped' and discard their operations.
+3) Insert buffer: we remove all entries for the tablespace in the insert
+buffer tree; as long as the tablespace mem object does not exist, ongoing
+insert buffer page merges are discarded in buf0rea.c. If we recreate the
+tablespace mem object with IMPORT TABLESPACE later, then the tablespace will
+have the same id, but the tablespace_version field in the mem object is
+different, and ongoing old insert buffer page merges get discarded.
+4) Linear readahead and random readahead: we use the same method as in 3) to
+discard ongoing operations. */
+
+int
+row_discard_tablespace_for_mysql(
+/*=============================*/
+			/* out: error code or DB_SUCCESS */
+	char*	name,	/* in: table name */
+	trx_t*	trx);	/* in: transaction handle */
+/*********************************************************************
+Imports a tablespace. The space id in the .ibd file must match the space id
+of the table in the data dictionary. */
+
+int
+row_import_tablespace_for_mysql(
+/*============================*/
+			/* out: error code or DB_SUCCESS */
+	char*	name,	/* in: table name */
+	trx_t*	trx);	/* in: transaction handle */
+/*************************************************************************
 Drops a database for MySQL. */
 
 int