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Rewrite slave_failover

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The test now uses the @@server_id server variable to detect which server
is used. This is a lot less error prone than comparing hostnames is.
This commit is contained in:
Markus Mäkelä 2019-10-28 08:36:13 +02:00
parent 35d3c7084c
commit 195a016b7c
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GPG Key ID: 72D48FCE664F7B19
1 changed files with 36 additions and 22 deletions
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58
maxscale-system-test/slave_failover.cpp
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@ -18,36 +18,50 @@
int main(int argc, char* argv[])
{
TestConnections test(argc, argv);
printf("Connecting to RWSplit");
test.set_timeout(60);
test.add_result(test.maxscales->connect_rwsplit(0), "Error connection to RWSplit! Exiting");
test.maxscales->wait_for_monitor();
test.repl->connect();
auto ids = test.repl->get_all_server_ids();
test.repl->disconnect();
test.tprintf("Checking current slave");
int res = 0;
int old_slave = test.find_connected_slave(0, &res);
test.add_result(res, "no current slave");
auto conn = test.maxscales->rwsplit();
test.expect(conn.connect(), "Connection to rwsplit should work: %s", conn.error());
test.tprintf("Setup firewall to block mysql on old slave (oldslave is node %d)", old_slave);
auto first_slave = conn.field("SELECT @@server_id");
conn.disconnect();
test.add_result((old_slave < 0) || (old_slave >= test.repl->N), "Active slave is not found");
test.repl->block_node(old_slave);
test.expect(!first_slave.empty(), "Result should not be empty");
int slave = std::stoi(first_slave);
test.expect(slave != ids[0], "The result should not be from the master");
test.tprintf("Waiting for MaxScale to find a new slave");
test.stop_timeout();
test.maxscales->wait_for_monitor();
test.set_timeout(60);
for (int i = 1; i < test.repl->N; i++)
{
if (ids[i] == slave)
{
test.repl->block_node(i);
test.maxscales->wait_for_monitor();
break;
}
}
test.set_timeout(20);
int current_slave = test.find_connected_slave(0, &res);
test.add_result((current_slave == old_slave) || (current_slave < 0), "No failover happened");
test.set_timeout(60);
test.expect(conn.connect(), "Connection to rwsplit should work: %s", conn.error());
auto second_slave = conn.field("SELECT @@server_id");
test.tprintf("Unblock old node");
test.repl->unblock_node(old_slave);
test.maxscales->close_rwsplit(0);
test.expect(!second_slave.empty(), "Second result should not be empty");
test.expect(first_slave != second_slave, "The slave should change");
slave = std::stoi(second_slave);
test.expect(slave != ids[0], "The result should not be from the master");
test.check_maxscale_alive(0);
test.stop_timeout();
test.repl->fix_replication();
for (int i = 1; i < test.repl->N; i++)
{
if (ids[i] == slave)
{
test.repl->unblock_node(i);
break;
}
}
return test.global_result;
}