/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.hive.jdbc.miniHS2;
import org.apache.hadoop.hive.common.metrics.MetricsTestUtils;
import org.apache.hadoop.hive.common.metrics.common.MetricsFactory;
import org.apache.hadoop.hive.common.metrics.metrics2.CodahaleMetrics;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.hadoop.hive.ql.exec.Task;
import org.apache.hadoop.hive.ql.parse.ASTNode;
import org.apache.hadoop.hive.ql.parse.HiveSemanticAnalyzerHook;
import org.apache.hadoop.hive.ql.parse.HiveSemanticAnalyzerHookContext;
import org.apache.hadoop.hive.ql.parse.SemanticException;
import org.apache.hive.service.cli.CLIServiceClient;
import org.apache.hive.service.cli.SessionHandle;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Tests HiveServer2 metrics.
*/
public class TestHs2Metrics {
private static MiniHS2 miniHS2;
private static Map<String, String> confOverlay;
//Check metrics during semantic analysis.
public static class MetricCheckingHook implements HiveSemanticAnalyzerHook {
@Override
public ASTNode preAnalyze(HiveSemanticAnalyzerHookContext context,
ASTNode ast) throws SemanticException {
try {
CodahaleMetrics metrics = (CodahaleMetrics) MetricsFactory.getInstance();
String json = metrics.dumpJson();
//Pre-analyze hook is fired in the middle of these calls
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_semanticAnalyze", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_compile", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_hs2_operation_RUNNING", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_hs2_sql_operation_RUNNING", 1);
} catch (Exception e) {
throw new SemanticException("metrics verification failed", e);
}
return ast;
}
@Override
public void postAnalyze(HiveSemanticAnalyzerHookContext context,
List<Task<? extends Serializable>> rootTasks) throws SemanticException {
}
}
@BeforeClass
public static void setup() throws Exception {
miniHS2 = new MiniHS2(new HiveConf());
confOverlay = new HashMap<String, String>();
confOverlay.put(HiveConf.ConfVars.HIVE_SUPPORT_CONCURRENCY.varname, "false");
confOverlay.put(HiveConf.ConfVars.SEMANTIC_ANALYZER_HOOK.varname, MetricCheckingHook.class.getName());
confOverlay.put(HiveConf.ConfVars.HIVE_SERVER2_METRICS_ENABLED.varname, "true");
confOverlay.put(HiveConf.ConfVars.HIVE_SUPPORT_CONCURRENCY.varname, "false");
miniHS2.start(confOverlay);
}
@Before
public void before() throws Exception {
HiveConf conf = new HiveConf();
MetricsFactory.close();
MetricsFactory.init(conf);
}
@Test
public void testMetrics() throws Exception {
String tableName = "testMetrics";
CLIServiceClient serviceClient = miniHS2.getServiceClient();
SessionHandle sessHandle = serviceClient.openSession("foo", "bar");
//Block on semantic analysis to check 'active_calls'
serviceClient.executeStatement(sessHandle, "CREATE TABLE " + tableName + " (id INT)", confOverlay);
//check that all calls were recorded.
CodahaleMetrics metrics = (CodahaleMetrics) MetricsFactory.getInstance();
String json = metrics.dumpJson();
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_hs2_operation_INITIALIZED", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_hs2_operation_PENDING", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_hs2_operation_RUNNING", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "hs2_completed_operation_FINISHED", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_hs2_sql_operation_PENDING", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_hs2_sql_operation_RUNNING", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "hs2_completed_sql_operation_FINISHED", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_Driver.run", 1);
//but there should be no more active calls.
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_semanticAnalyze", 0);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_compile", 0);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_hs2_operation_RUNNING", 0);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_hs2_sql_operation_RUNNING", 0);
serviceClient.closeSession(sessHandle);
}
@Test
public void testClosedScopes() throws Exception {
CLIServiceClient serviceClient = miniHS2.getServiceClient();
SessionHandle sessHandle = serviceClient.openSession("foo", "bar");
//this should error at analyze scope
Exception expectedException = null;
try {
serviceClient.executeStatement(sessHandle, "select aaa", confOverlay);
} catch (Exception e) {
expectedException = e;
}
Assert.assertNotNull("Expected semantic exception", expectedException);
//verify all scopes were recorded
CodahaleMetrics metrics = (CodahaleMetrics) MetricsFactory.getInstance();
String json = metrics.dumpJson();
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_parse", 1);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.TIMER, "api_semanticAnalyze", 1);
//verify all scopes are closed.
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_parse", 0);
MetricsTestUtils.verifyMetricsJson(json, MetricsTestUtils.COUNTER, "active_calls_api_semanticAnalyze", 0);
serviceClient.closeSession(sessHandle);
}
}