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We will remove the parameter innodb_disallow_writes because it is badly designed and implemented. The parameter was never allowed at startup. It was only internally used by Galera snapshot transfer. If a user executed SET GLOBAL innodb_disallow_writes=ON; the server could hang even on subsequent read operations. During Galera snapshot transfer, we will block writes to implement an rsync friendly snapshot, as follows: sst_flush_tables() will acquire a global lock by executing FLUSH TABLES WITH READ LOCK, which will block any writes at the high level. sst_disable_innodb_writes(), invoked via ha_disable_internal_writes(true), will suspend or disable InnoDB background tasks or threads that could initiate writes. As part of this, log_make_checkpoint() will be invoked to ensure that anything in the InnoDB buf_pool.flush_list will be written to the data files. This has the nice side effect that the Galera joiner will avoid crash recovery. The changes to sql/wsrep.cc and to the tests are based on a prototype that was developed by Jan Lindström. Reviewed by: Jan Lindström
69 lines
2.6 KiB
Plaintext
69 lines
2.6 KiB
Plaintext
#
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# This test tests a DROP empty database
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#
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--source include/galera_cluster.inc
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--source include/have_innodb.inc
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# Save original auto_increment_offset values.
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--let $node_1=node_1
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--let $node_2=node_2
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--source include/auto_increment_offset_save.inc
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# Create test database with two sets of the FTS indexes:
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CREATE DATABASE fts;
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USE fts;
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CREATE TABLE fts_t1 (f1 INT PRIMARY KEY AUTO_INCREMENT, f2 VARCHAR(100), FULLTEXT (f2)) ENGINE=InnoDB;
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CREATE TABLE fts_t2 (f2 VARCHAR(100), FULLTEXT (f2)) ENGINE=InnoDB;
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# Insert 1K rows
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CREATE TABLE ten (f1 INTEGER) ENGINE=InnoDB;
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INSERT INTO ten VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
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INSERT INTO fts_t1 (f2) SELECT 'foobarbaz' FROM ten AS a1, ten AS a2, ten AS a3;
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INSERT INTO fts_t2 (f2) SELECT 'foobarbaz' FROM ten AS a1, ten AS a2, ten AS a3;
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DROP TABLE ten;
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UPDATE fts_t1 SET f2 = 'abcd';
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UPDATE fts_t2 SET f2 = 'efjh';
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t1;
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t2;
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t1 where f2 = 'abcd';
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t2 where f2 = 'efjh';
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# Restart the second node:
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--connection node_2
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--source include/restart_mysqld.inc
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--connection node_1
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--let $wait_condition = SELECT VARIABLE_VALUE = 2 FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_size';
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--source include/wait_condition.inc
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--connection node_2
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--source include/wait_until_ready.inc
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--let $wait_condition = SELECT COUNT(*) = 1000 FROM fts_t1 where f2 = 'abcd';
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--source include/wait_condition.inc
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--let $wait_condition = SELECT COUNT(*) = 1000 FROM fts_t2 where f2 = 'efjh';
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--source include/wait_condition.inc
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t1;
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t2;
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t1 where f2 = 'abcd';
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SELECT COUNT(*) AS EXPECT_1000 FROM fts_t2 where f2 = 'efjh';
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# Drop the tables and database after nodes restarted:
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--connection node_1
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USE fts;
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DROP TABLE fts_t1;
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DROP TABLE fts_t2;
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SHOW TABLES;
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DROP DATABASE fts;
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--connection node_2
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call mtr.add_suppression("WSREP: Failed to scan the last segment to the end. Last events may be missing. Last recovered event:");
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--let $wait_condition = SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'fts_t1';
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--source include/wait_condition.inc
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--let $wait_condition = SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 'fts_t2';
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--source include/wait_condition.inc
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--let $wait_condition = SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'fts';
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--source include/wait_condition.inc
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# Restore original auto_increment_offset values.
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--source include/auto_increment_offset_restore.inc
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