385 lines
12 KiB
Plaintext
385 lines
12 KiB
Plaintext
#
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# Tests for various concurrency-related aspects of ALTER TABLE implemetation
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# Note: MyISAM specific test
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# Start the server with MyISAM as default storage engine
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--source include/force_myisam_default.inc
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# Test need MyISAM to support disable key feature
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--source include/have_myisam.inc
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# This test takes rather long time so let us run it only in --big-test mode
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--source include/big_test.inc
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# We are using some debug-only features in this test
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--source include/have_debug.inc
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# Also we are using SBR to check that statements are executed
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# in proper order.
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--source include/force_binlog_format_statement.inc
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--source include/count_sessions.inc
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--echo #
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--echo # 1.5) ALTER TABLE RENAME which fails at the late stage for SEs
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--echo # supporting and not supporting atomic DDL.
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--echo #
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CREATE TABLE t1 (i INT) ENGINE=InnoDB;
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CREATE TABLE t2 (i INT) ENGINE=MyISAM;
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LOCK TABLES t1 WRITE, t2 WRITE;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t1 RENAME TO t3;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE supporting atomic DDL table still should be available under
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--echo # old name.
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SELECT * FROM t1;
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--connect (con1, localhost, root,,)
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SET @old_lock_wait_timeout= @@lock_wait_timeout;
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connection con1;
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--echo # New name should not be locked.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t3;
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connection default;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t2 RENAME TO t4;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE not supporting atomic DDL table will be
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--echo # removed from list of locked tables. And new
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--echo # name should not be added.
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t2;
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t4;
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connection con1;
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--echo # But metadata lock on old name can be still kept.
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# Disable prepared statements, since for them the below check
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# works differently. The prepare phase of statements execution
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# acquires weaker S metadata lock (which do not conflict with
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# SNRW locks held by LOCK TABLE WRITE) and manages to discover
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# that table with such name doesn't exist.
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--disable_ps_protocol
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--enable_ps_protocol
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--echo # New name should not be locked.
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SELECT * FROM t4;
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connection default;
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UNLOCK TABLES;
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DROP TABLES t1, t4;
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--echo #
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--echo # 2.5) ALTER TABLE INPLACE with RENAME clause fails at the late stage
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--echo # for SEs supporting and not supporting atomic DDL.
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--echo #
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CREATE TABLE t1 (i INT) ENGINE=InnoDB;
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CREATE TABLE t2 (i INT) ENGINE=MyISAM;
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LOCK TABLES t1 WRITE, t2 WRITE;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t1 ADD COLUMN j INT, RENAME TO t3, ALGORITHM=INPLACE;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE supporting atomic DDL table still should be available under
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--echo # old name.
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SELECT * FROM t1;
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connection con1;
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--echo # New name should not be locked.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t3;
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connection default;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t2 RENAME COLUMN i TO j, RENAME TO t4, ALGORITHM=INPLACE;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE not supporting atomic DDL table will be
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--echo # removed from list of locked tables. And new
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--echo # name should not be added.
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t2;
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t4;
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connection con1;
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--echo # But metadata lock on old name can be still kept.
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# Disable prepared statements, since for them the below check
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# works differently. The prepare phase of statements execution
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# acquires weaker S metadata lock (which do not conflict with
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# SNRW locks held by LOCK TABLE WRITE) and manages to discover
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# that table with such name doesn't exist.
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--disable_ps_protocol
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--enable_ps_protocol
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--echo # New name should not be locked.
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SELECT * FROM t4;
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connection default;
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UNLOCK TABLES;
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DROP TABLES t1, t4;
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--echo #
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--echo # 3.5) ALTER TABLE COPY with RENAME clause fails at the late stage
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--echo # for SEs supporting and not supporting atomic DDL.
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--echo #
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CREATE TABLE t1 (i INT) ENGINE=InnoDB;
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CREATE TABLE t2 (i INT) ENGINE=MyISAM;
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CREATE DATABASE mysqltest;
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LOCK TABLES t1 WRITE, t2 WRITE;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t1 ADD COLUMN j INT, RENAME TO t3, ALGORITHM=COPY;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE supporting atomic DDL table still should be available under
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--echo # old name.
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SELECT * FROM t1;
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connection con1;
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--echo # New name should not be locked.
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--error ER_NO_SUCH_TABLE
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SELECT * FROM t3;
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connection default;
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DROP TABLE t1;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t2 RENAME COLUMN i TO j, RENAME TO t4, ALGORITHM=COPY;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE not supporting atomic DDL table will be
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--echo # removed from list of locked tables. And new
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--echo # name should not be added.
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t2;
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t4;
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connection con1;
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--echo # Metadata locks on both old and new names are still kept.
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# Disable prepared statements, since for them the below check
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# works differently. The prepare phase of statements execution
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# acquires weaker S metadata locks (which do not conflict with
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# SNRW locks held by LOCK TABLE WRITE) and manages to discover
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# that tables with such names don't exist.
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--disable_ps_protocol
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t4;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--enable_ps_protocol
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connection default;
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UNLOCK TABLES;
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--echo # Now test SE not supporting atomic DDL and different schema
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--echo # to improve code coverage.
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connection default;
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LOCK TABLE t4 WRITE;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t4 RENAME COLUMN j TO i, RENAME TO mysqltest.t4, ALGORITHM=COPY;
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SET @@debug='-d,injecting_fault_writing';
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--echo # For SE not supporting atomic DDL table will be
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--echo # removed from list of locked tables. And new
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--echo # name should not be added.
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t4;
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM mysqltest.t4;
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connection con1;
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--echo # Metadata locks on both old and new names are still kept.
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# Disable prepared statements, since for them the below check
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# works differently. The prepare phase of statements execution
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# acquires weaker S metadata locks (which do not conflict with
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# SNRW locks held by LOCK TABLE WRITE) and manages to discover
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# that tables with such names don't exist.
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--disable_ps_protocol
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t4;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM mysqltest.t4;
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--echo # Also IX lock on new schema should be kept.
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--error ER_LOCK_WAIT_TIMEOUT
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ALTER DATABASE mysqltest CHARACTER SET latin1;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--enable_ps_protocol
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connection default;
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UNLOCK TABLES;
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DROP DATABASE mysqltest;
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--echo #
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--echo # 3.6) Special case ALTER TABLE COPY with RENAME clause which
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--echo # non-atomic, adds foreign keys and fails at the late stage.
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--echo #
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CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=InnoDB;
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CREATE TABLE t2 (fk INT) ENGINE=MyISAM;
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LOCK TABLES t2 WRITE, t1 WRITE;
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SET @@debug='+d,injecting_fault_writing';
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--replace_regex /(errno: .*)/(errno: #)/
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--error ER_ERROR_ON_WRITE
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ALTER TABLE t2 ADD FOREIGN KEY (fk) REFERENCES t1(pk), ENGINE=InnoDB, RENAME TO t3, ALGORITHM=COPY;
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SET @@debug='-d,injecting_fault_writing';
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--echo # Table should be removed from locked tables list and new
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--echo # table name should not be added.
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t2;
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--error ER_TABLE_NOT_LOCKED
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SELECT * FROM t3;
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connection con1;
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--echo # However, metadata locks on both old and new names are still kept.
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# Disable prepared statements, since for them the below check
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# works differently. The prepare phase of statements execution
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# acquires weaker S metadata locks (which do not conflict with
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# SNRW locks held by LOCK TABLE WRITE) and manages to discover
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# that tables with such names don't exist.
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--disable_ps_protocol
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SET @@lock_wait_timeout= 1;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t2;
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--error ER_LOCK_WAIT_TIMEOUT
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SELECT * FROM t3;
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SET @@lock_wait_timeout= @old_lock_wait_timeout;
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--enable_ps_protocol
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connection default;
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--echo # And delete from parent table is possible and doesn't cause asserts.
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DELETE FROM t1;
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UNLOCK TABLES;
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DROP TABLES t3, t1;
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connection con1;
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disconnect con1;
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--source include/wait_until_disconnected.inc
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connection default;
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--disable_connect_log
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--echo #
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--echo # Bug#24786075 FIND A WAY TO LIST #SQL... TABLE LEFT IN
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--echo # DATA DICTIONARY IN CASE ALTER FAILS.
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--echo # Test that we can see hidden temporary tables using ALTER TABLE.
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--echo # Test that we can delete the hidden temporary tables that were
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--echo # left by ALTER TABLE table failures in rare situations.
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--echo #
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CREATE TABLE t1(a INT) ENGINE=MyISAM;
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SET debug="+d,exit_after_alter_table_before_rename";
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--error ER_UNKNOWN_ERROR
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ALTER TABLE t1 modify column a varchar(30);
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SET debug="-d,exit_after_alter_table_before_rename";
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--echo # Verify that #sql... tables are not seen by I_S and SHOW
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SELECT COUNT(TABLE_NAME) FROM INFORMATION_SCHEMA.TABLES
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WHERE TABLE_SCHEMA='test' AND TABLE_NAME like '#sql%';
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SHOW TABLES FROM test;
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--echo # The SHOW EXTENDED [FULL] syntax should show the hidden table.
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--replace_regex /#sql.*$/#sql-xxxxx/
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SHOW EXTENDED TABLES FROM test;
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--replace_regex /#sql.*$/#sql-xxxxx/
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SHOW EXTENDED FULL TABLES FROM test;
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--echo # Dropping the temporary table.
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let $value=
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query_get_value(SHOW EXTENDED TABLES FROM test, Tables_in_test, 1);
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let $stmt = DROP TABLE `$value`;
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--replace_regex /#sql.*$/#sql-xxxxx/
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eval $stmt;
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--echo # Verify that the temporary table is dropped.
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--replace_regex /#sql.*$/#sql-xxxxx/
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SHOW EXTENDED TABLES FROM test;
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--replace_regex /#sql.*$/#sql-xxxxx/
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SHOW EXTENDED FULL TABLES FROM test;
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--echo # clean-up
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DROP TABLE t1;
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#
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# Test for Bug#25044 ALTER TABLE ... ENABLE KEYS acquires global
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# 'opening tables' lock
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#
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# ALTER TABLE ... ENABLE KEYS should not acquire LOCK_open mutex for
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# the whole its duration as it prevents other queries from execution.
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--disable_warnings
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drop table if exists t1, t2;
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--enable_warnings
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set debug_sync='RESET';
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connect (addconroot, localhost, root,,);
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connect (addconroot2, localhost, root,,);
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connection default;
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create table t1 (n1 int, n2 int, n3 int,
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key (n1, n2, n3),
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key (n2, n3, n1),
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key (n3, n1, n2));
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create table t2 (i int) engine=innodb;
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alter table t1 disable keys;
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insert into t1 values (1, 2, 3);
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# Later we use binlog to check the order in which statements are
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# executed so let us reset it first.
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reset master;
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set debug_sync='alter_table_enable_indexes SIGNAL parked WAIT_FOR go';
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--send alter table t1 enable keys;
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connection addconroot;
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# Wait until ALTER TABLE acquires metadata lock.
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set debug_sync='now WAIT_FOR parked';
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# This statement should not be blocked by in-flight ALTER and therefore
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# should be executed and written to binlog before ALTER TABLE ... ENABLE KEYS
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# finishes.
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insert into t2 values (1);
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# And this should wait until the end of ALTER TABLE ... ENABLE KEYS.
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--send insert into t1 values (1, 1, 1);
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connection addconroot2;
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# Wait until the above INSERT INTO t1 is blocked due to ALTER
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let $wait_condition=
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select count(*) = 1 from information_schema.processlist
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where state = "Waiting for table metadata lock" and
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info = "insert into t1 values (1, 1, 1)";
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--source include/wait_condition.inc
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# Resume ALTER execution.
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set debug_sync='now SIGNAL go';
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connection default;
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--reap
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connection addconroot;
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--reap
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connection default;
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# Check that statements were executed/binlogged in correct order.
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source include/show_binlog_events.inc;
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# Clean up
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drop tables t1, t2;
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disconnect addconroot;
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disconnect addconroot2;
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set debug_sync='RESET';
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--source include/restore_default_binlog_format.inc
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# Wait till all disconnects are completed
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--source include/wait_until_count_sessions.inc
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