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--source include/galera_cluster.inc --source include/have_innodb.inc # # At this time, issing a FLUSH TABLES WITH READ LOCK causes SELECT and SHOW to # hang if causality can not be ensured because another node issued a statement # in the meantime which could not be applied because FTWRL blocks the applier # as well # # See LP bug 1271177 # CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB; --connection node_2 --let $wsrep_provider_options_orig = `SELECT @@wsrep_provider_options;` SET GLOBAL wsrep_provider_options = "repl.causal_read_timeout=PT1S"; FLUSH TABLES WITH READ LOCK; --connection node_1 INSERT INTO t1 VALUES (1); --connection node_2 --error ER_LOCK_WAIT_TIMEOUT SHOW TABLES; --error ER_LOCK_WAIT_TIMEOUT SELECT * FROM t1; UNLOCK TABLES; --disable_query_log --eval SET GLOBAL wsrep_provider_options = "$wsrep_provider_options_orig"; --enable_query_log SHOW TABLES; SELECT COUNT(*) = 1 FROM t1; DROP TABLE t1;