| /* |
| * 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.hadoop.hbase.regionserver; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.HBaseClassTestRule; |
| import org.apache.hadoop.hbase.HBaseTestingUtility; |
| import org.apache.hadoop.hbase.HConstants; |
| import org.apache.hadoop.hbase.MiniHBaseCluster.MiniHBaseClusterRegionServer; |
| import org.apache.hadoop.hbase.TableName; |
| import org.apache.hadoop.hbase.client.Put; |
| import org.apache.hadoop.hbase.client.Result; |
| import org.apache.hadoop.hbase.client.ResultScanner; |
| import org.apache.hadoop.hbase.client.Scan; |
| import org.apache.hadoop.hbase.client.Table; |
| import org.apache.hadoop.hbase.client.TestClientScannerRPCTimeout; |
| import org.apache.hadoop.hbase.testclassification.MediumTests; |
| import org.apache.hadoop.hbase.testclassification.RegionServerTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.AfterClass; |
| import org.junit.BeforeClass; |
| import org.junit.ClassRule; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.rules.TestName; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.io.IOException; |
| |
| @Category({ RegionServerTests.class, MediumTests.class}) |
| public class TestScannerRPCScanMetrics { |
| |
| @ClassRule |
| public static final HBaseClassTestRule CLASS_RULE = |
| HBaseClassTestRule.forClass(TestScannerRPCScanMetrics.class); |
| |
| private static final Logger LOG = LoggerFactory.getLogger(TestScannerRPCScanMetrics.class); |
| private final static HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility(); |
| private static final byte[] FAMILY = Bytes.toBytes("testFamily"); |
| private static final byte[] QUALIFIER = Bytes.toBytes("testQualifier"); |
| private static final byte[] VALUE = Bytes.toBytes("testValue"); |
| |
| |
| @Rule |
| public TestName name = new TestName(); |
| |
| @BeforeClass |
| public static void setupBeforeClass() throws Exception { |
| Configuration conf = TEST_UTIL.getConfiguration(); |
| conf.setStrings(HConstants.REGION_SERVER_IMPL, RegionServerWithScanMetrics.class.getName()); |
| TEST_UTIL.startMiniCluster(1); |
| } |
| |
| @AfterClass |
| public static void tearDownAfterClass() throws Exception { |
| TEST_UTIL.shutdownMiniCluster(); |
| } |
| |
| @Test |
| public void testScannerRPCScanMetrics() throws Exception { |
| final TableName tableName = TableName.valueOf(name.getMethodName()); |
| byte[][] splits = new byte[1][]; |
| splits[0] = Bytes.toBytes("row-4"); |
| Table ht = TEST_UTIL.createTable(tableName, FAMILY,splits); |
| byte[] r0 = Bytes.toBytes("row-0"); |
| byte[] r1 = Bytes.toBytes("row-1"); |
| byte[] r2 = Bytes.toBytes("row-2"); |
| byte[] r3 = Bytes.toBytes("row-3"); |
| putToTable(ht, r0); |
| putToTable(ht, r1); |
| putToTable(ht, r2); |
| putToTable(ht, r3); |
| LOG.info("Wrote our four table entries"); |
| Scan scan1 = new Scan(); |
| scan1.withStartRow(r0); |
| // This scan should not increment rpc full scan count (start row specified) |
| scan1.withStopRow(Bytes.toBytes("row-4")); |
| scanNextIterate(ht, scan1); |
| Scan scan2 = new Scan(); |
| scan2.withStartRow(r1); |
| // This scan should increment rpc full scan count by 1 (for second region only) |
| scanNextIterate(ht, scan2); |
| Scan scan3 = new Scan(); |
| scan3.withStopRow(Bytes.toBytes("row-5")); |
| // This scan should increment rpc full scan count by 1 (for firts region only) |
| scanNextIterate(ht, scan3); |
| Scan scan4 = new Scan(); |
| scan4.withStartRow(r1); |
| scan4.withStopRow(r2); |
| // This scan should not increment rpc full scan count (both start and stop row) |
| scanNextIterate(ht, scan4); |
| Scan dummyScan = new Scan(); |
| // This scan should increment rpc full scan count by 2 (both regions - no stop/start row) |
| scanNextIterate(ht, dummyScan); |
| |
| RSRpcServices testClusterRSRPCServices = TEST_UTIL.getMiniHBaseCluster().getRegionServer(0) |
| .rpcServices; |
| assertEquals(4, testClusterRSRPCServices.rpcFullScanRequestCount.intValue()); |
| } |
| |
| private void putToTable(Table ht, byte[] rowkey) throws IOException { |
| Put put = new Put(rowkey); |
| put.addColumn(FAMILY, QUALIFIER, VALUE); |
| ht.put(put); |
| } |
| |
| private void scanNextIterate(Table ht, Scan scan) throws Exception{ |
| ResultScanner scanner = ht.getScanner(scan); |
| for (Result result = scanner.next(); result != null; result = scanner.next()) |
| { |
| // Use the result object |
| } |
| scanner.close(); |
| } |
| |
| private static class RegionServerWithScanMetrics extends MiniHBaseClusterRegionServer { |
| public RegionServerWithScanMetrics(Configuration conf) |
| throws IOException, InterruptedException { |
| super(conf); |
| } |
| |
| protected RSRpcServices createRPCServices() throws IOException { |
| return new RSRPCServicesWithScanMetrics(this); |
| } |
| } |
| private static class RSRPCServicesWithScanMetrics extends RSRpcServices { |
| public long getScanRequestCount() { |
| return super.rpcScanRequestCount.longValue(); |
| } |
| public long getFullScanRequestCount() { |
| return super.rpcFullScanRequestCount.longValue(); |
| } |
| public RSRPCServicesWithScanMetrics(HRegionServer rs) |
| throws IOException { |
| super(rs); |
| } |
| } |
| |
| } |