| // Copyright 2014 Cloudera, Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <boost/assign/list_of.hpp> |
| #include <boost/foreach.hpp> |
| #include <glog/logging.h> |
| #include <gtest/gtest.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <vector> |
| |
| #include "kudu/integration-tests/external_mini_cluster.h" |
| #include "kudu/gutil/strings/substitute.h" |
| #include "kudu/gutil/strings/util.h" |
| #include "kudu/util/metrics.h" |
| #include "kudu/util/net/net_util.h" |
| #include "kudu/util/test_util.h" |
| |
| METRIC_DECLARE_entity(server); |
| METRIC_DECLARE_gauge_uint64(threads_running); |
| |
| namespace kudu { |
| |
| class EMCTest : public KuduTest { |
| public: |
| EMCTest() { |
| // Hard-coded RPC ports for the masters. This is safe, as this unit test |
| // runs under a resource lock (see CMakeLists.txt in this directory). |
| // TODO we should have a generic method to obtain n free ports. |
| master_peer_ports_ = boost::assign::list_of(11010)(11011)(11012); |
| } |
| |
| protected: |
| std::vector<uint16_t> master_peer_ports_; |
| }; |
| |
| TEST_F(EMCTest, TestBasicOperation) { |
| ExternalMiniClusterOptions opts; |
| opts.num_masters = master_peer_ports_.size(); |
| opts.num_tablet_servers = 3; |
| opts.master_rpc_ports = master_peer_ports_; |
| |
| ExternalMiniCluster cluster(opts); |
| ASSERT_OK(cluster.Start()); |
| |
| // Verify each of the masters. |
| for (int i = 0; i < opts.num_masters; i++) { |
| SCOPED_TRACE(i); |
| ExternalMaster* master = CHECK_NOTNULL(cluster.master(i)); |
| HostPort master_rpc = master->bound_rpc_hostport(); |
| EXPECT_TRUE(HasPrefixString(master_rpc.ToString(), "127.0.0.1:")) << master_rpc.ToString(); |
| |
| HostPort master_http = master->bound_http_hostport(); |
| EXPECT_TRUE(HasPrefixString(master_http.ToString(), "127.0.0.1:")) << master_http.ToString(); |
| |
| // Retrieve a thread metric, which should always be present on any master. |
| int64_t value; |
| ASSERT_OK(master->GetInt64Metric(&METRIC_ENTITY_server, |
| "kudu.master", |
| &METRIC_threads_running, |
| "value", |
| &value)); |
| EXPECT_GT(value, 0); |
| } |
| |
| // Verify each of the tablet servers. |
| for (int i = 0; i < opts.num_tablet_servers; i++) { |
| SCOPED_TRACE(i); |
| ExternalTabletServer* ts = CHECK_NOTNULL(cluster.tablet_server(i)); |
| HostPort ts_rpc = ts->bound_rpc_hostport(); |
| string expected_prefix = strings::Substitute("$0:", cluster.GetBindIpForTabletServer(i)); |
| EXPECT_NE(expected_prefix, "127.0.0.1") << "Should bind to unique per-server hosts"; |
| EXPECT_TRUE(HasPrefixString(ts_rpc.ToString(), expected_prefix)) << ts_rpc.ToString(); |
| |
| HostPort ts_http = ts->bound_http_hostport(); |
| EXPECT_TRUE(HasPrefixString(ts_http.ToString(), expected_prefix)) << ts_http.ToString(); |
| |
| // Retrieve a thread metric, which should always be present on any TS. |
| int64_t value; |
| ASSERT_OK(ts->GetInt64Metric(&METRIC_ENTITY_server, |
| "kudu.tabletserver", |
| &METRIC_threads_running, |
| "value", |
| &value)); |
| EXPECT_GT(value, 0); |
| } |
| |
| // Restart a master and a tablet server. Make sure they come back up with the same ports. |
| ExternalMaster* master = cluster.master(0); |
| HostPort master_rpc = master->bound_rpc_hostport(); |
| HostPort master_http = master->bound_http_hostport(); |
| |
| master->Shutdown(); |
| ASSERT_OK(master->Restart()); |
| |
| ASSERT_EQ(master_rpc.ToString(), master->bound_rpc_hostport().ToString()); |
| ASSERT_EQ(master_http.ToString(), master->bound_http_hostport().ToString()); |
| |
| ExternalTabletServer* ts = cluster.tablet_server(0); |
| |
| HostPort ts_rpc = ts->bound_rpc_hostport(); |
| HostPort ts_http = ts->bound_http_hostport(); |
| |
| ts->Shutdown(); |
| ASSERT_OK(ts->Restart()); |
| |
| ASSERT_EQ(ts_rpc.ToString(), ts->bound_rpc_hostport().ToString()); |
| ASSERT_EQ(ts_http.ToString(), ts->bound_http_hostport().ToString()); |
| |
| cluster.Shutdown(); |
| } |
| |
| } // namespace kudu |