EVOLUTION-MANAGER

Edit File: galera_gcs_fc_limit.test

#
# Test that under gcs.fc_limit=1 on the slave, transactions on the master can not commit.
#

--source include/galera_cluster.inc
--source include/have_innodb.inc

CREATE TABLE t1 (f1 INTEGER) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);

--connection node_2
SELECT COUNT(*) = 1 FROM t1;
--sleep 1

--let $wsrep_provider_options_orig = `SELECT @@wsrep_provider_options`
SET GLOBAL wsrep_provider_options = 'gcs.fc_limit=1';

# Block the slave applier thread
LOCK TABLE t1 WRITE;

--connection node_1
--sleep 1
INSERT INTO t1 VALUES (2);
--sleep 2
INSERT INTO t1 VALUES (3);
--sleep 2
INSERT INTO t1 VALUES (4);
--sleep 2

# This query will hang because flow control will kick in
--send
INSERT INTO t1 VALUES (5);
--sleep 2

--let $galera_connection_name = node_1a
--let $galera_server_number = 1
--source include/galera_connect.inc
--connection node_1a
--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE = 'Commit' AND INFO = 'INSERT INTO t1 VALUES (5)';
--source include/wait_condition.inc

--connection node_2
# Unblock the slave applier thread
UNLOCK TABLES;

--connection node_1
--reap

INSERT INTO t1 VALUES (6);

--connection node_2
# Replication catches up and continues normally
SELECT COUNT(*) = 6 FROM t1;

--disable_query_log
--eval SET GLOBAL wsrep_provider_options = '$wsrep_provider_options_orig';
--enable_query_log

DROP TABLE t1;