Added test case for multiple MySQL Servers connected to one cluster

Added test for cache in combination with multiple MySQL Servers


mysql-test/include/have_ndb.inc:
  Added suport for connecting to two MySQL Server instances
  (I hope this will work on all platforms, since it does not use the socket parameter when openeing the connections, analog to how it looks like in replication tests)

mysql-test/include/have_ndb.inc

@@ -2,6 +2,33 @@
 disable_query_log;
 show variables like "have_ndbcluster";
 enable_query_log;
-#connect (server1,127.0.0.1,root,,test,$MASTER_MYPORT,$MASTER_MYSOCK);
-#connect (server2,127.0.0.1,root,,test,$MASTER_MYPORT1,$MASTER_MYSOCK1);
-#connection server1;
+
+# Setup connections to both MySQL Servers connected to the cluster
+connect (server1,127.0.0.1,root,,test,$MASTER_MYPORT,);
+connect (server2,127.0.0.1,root,,test,$MASTER_MYPORT1,);
+
+# Check that server1 has NDB  support
+connection server1;
+disable_query_log;
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+flush tables;
+@r/have_ndb.require show variables like "have_ndbcluster";
+@r/server_id.require show variables like "server_id";
+enable_query_log;
+
+# Check that server2 has NDB support
+connection server2;
+disable_query_log;
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+flush tables;
+@r/have_ndb.require show variables like "have_ndbcluster";
+@r/server_id1.require show variables like "server_id";
+enable_query_log;
+
+# Set the default connection to 'server1'
+connection server1;
+

mysql-test/r/ndb_cache_multi.result

+drop table if exists t1, t2;
+set GLOBAL query_cache_type=on;
+set GLOBAL query_cache_size=1355776;
+reset query cache;
+flush status;
+set GLOBAL query_cache_type=on;
+set GLOBAL query_cache_size=1355776;
+reset query cache;
+flush status;
+create table t1 (a int) engine=ndbcluster;
+create table t2 (a int) engine=ndbcluster;
+insert into t1 value (2);
+insert into t2 value (3);
+select * from t1;
+a
+2
+select * from t2;
+a
+3
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	2
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	2
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	0
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	0
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+select * from t1;
+a
+2
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	1
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	1
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+update t1 set a=3 where a=2;
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	2
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	2
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+select * from t1;
+a
+3
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	2
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	3
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+drop table t1, t2;

mysql-test/r/ndb_multi.result

+drop table if exists t1, t2, t3, t4;
+flush status;
+create table t1 (a int) engine=ndbcluster;
+create table t2 (a int) engine=ndbcluster;
+insert into t1 value (2);
+insert into t2 value (3);
+select * from t1;
+a
+2
+select * from t2;
+a
+3
+show status like 'handler_discover%';
+Variable_name	Value
+Handler_discover	0
+flush status;
+select * from t1;
+a
+2
+update t1 set a=3 where a=2;
+show status like 'handler_discover%';
+Variable_name	Value
+Handler_discover	1
+create table t3 (a int not null primary key, b varchar(22),
+c int, last_col text) engine=ndb;
+insert into t3 values(1, 'Hi!', 89, 'Longtext column');
+create table t4 (pk int primary key, b int) engine=ndb;
+select * from t1;
+a
+3
+select * from t3;
+a	b	c	last_col
+1	Hi!	89	Longtext column
+show status like 'handler_discover%';
+Variable_name	Value
+Handler_discover	1
+show tables like 't4';
+Tables_in_test (t4)
+t4
+show status like 'handler_discover%';
+Variable_name	Value
+Handler_discover	2
+show tables;
+Tables_in_test
+t1
+t2
+t3
+t4
+drop table t1, t2, t3, t4;

mysql-test/r/server_id.require

+Variable_name	Value
+server_id	1

mysql-test/r/server_id1.require

+Variable_name	Value
+server_id	102

mysql-test/t/ndb_cache_multi.test

+-- source include/have_query_cache.inc
+-- source include/have_ndb.inc
+
+--disable_warnings
+drop table if exists t1, t2;
+--enable_warnings
+
+
+# Turn on and reset query cache on server1
+connection server1;
+set GLOBAL query_cache_type=on;
+set GLOBAL query_cache_size=1355776;
+reset query cache;
+flush status;
+
+# Turn on and reset query cache on server2
+connection server2;
+set GLOBAL query_cache_type=on;
+set GLOBAL query_cache_size=1355776;
+reset query cache;
+flush status;
+
+
+
+# Create test tables in NDB and load them into cache
+# on server1
+connection server1;
+create table t1 (a int) engine=ndbcluster;
+create table t2 (a int) engine=ndbcluster;
+insert into t1 value (2);
+insert into t2 value (3);
+select * from t1;
+select * from t2;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+
+
+# Connect server2, load table in to cache, then update the table
+connection server2;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+select * from t1;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+update t1 set a=3 where a=2;
+
+# Connect to server1 and check that cache is invalidated 
+# and correct data is returned
+connection server1;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+select * from t1;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+
+drop table t1, t2;
+
+

mysql-test/t/ndb_multi.test

+-- source include/have_ndb.inc
+
+--disable_warnings
+drop table if exists t1, t2, t3, t4;
+--enable_warnings
+
+flush status;
+
+# Create test tables on server1
+create table t1 (a int) engine=ndbcluster;
+create table t2 (a int) engine=ndbcluster;
+insert into t1 value (2);
+insert into t2 value (3);
+select * from t1;
+select * from t2;
+show status like 'handler_discover%';
+
+# Connect to server2 and use the tables from there
+connection server2;
+flush status;
+select * from t1;
+update t1 set a=3 where a=2;
+show status like 'handler_discover%';
+
+# Create a new table on server2
+create table t3 (a int not null primary key, b varchar(22),
+c int, last_col text) engine=ndb;
+insert into t3 values(1, 'Hi!', 89, 'Longtext column');
+create table t4 (pk int primary key, b int) engine=ndb;
+
+# Check that the tables are accessible from server1
+connection server1;
+select * from t1;
+select * from t3;
+show status like 'handler_discover%';
+show tables like 't4';
+show status like 'handler_discover%';
+show tables;
+
+drop table t1, t2, t3, t4;
+
+