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*
* Licensed to the Apache Software Foundation (ASF) under one
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* 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
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* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
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* See the License for the specific language governing permissions and
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package org.apache.hadoop.hbase.regionserver;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import org.apache.hadoop.hbase.util.ByteStringer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.CoordinatedStateManagerFactory;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HConstants;
import org.apache.hadoop.hbase.HRegionInfo;
import org.apache.hadoop.hbase.MediumTests;
import org.apache.hadoop.hbase.CoordinatedStateManager;
import org.apache.hadoop.hbase.ipc.PriorityFunction;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.Get;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.GetRequest;
import org.apache.hadoop.hbase.protobuf.generated.ClientProtos.ScanRequest;
import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier;
import org.apache.hadoop.hbase.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType;
import org.apache.hadoop.hbase.protobuf.generated.RPCProtos.RequestHeader;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.mockito.Mockito;
import com.google.protobuf.ByteString;
/**
* Tests that verify certain RPCs get a higher QoS.
*/
@Category(MediumTests.class)
public class TestPriorityRpc {
private HRegionServer regionServer = null;
private PriorityFunction priority = null;
@Before
public void setup() {
Configuration conf = HBaseConfiguration.create();
conf.setBoolean("hbase.testing.nocluster", true); // No need to do ZK
CoordinatedStateManager cp = CoordinatedStateManagerFactory.getCoordinatedStateManager(conf);
regionServer = HRegionServer.constructRegionServer(HRegionServer.class, conf, cp);
priority = regionServer.rpcServices.getPriority();
}
@Test
public void testQosFunctionForMeta() throws IOException {
priority = regionServer.rpcServices.getPriority();
RequestHeader.Builder headerBuilder = RequestHeader.newBuilder();
//create a rpc request that has references to hbase:meta region and also
//uses one of the known argument classes (known argument classes are
//listed in HRegionServer.QosFunctionImpl.knownArgumentClasses)
headerBuilder.setMethodName("foo");
GetRequest.Builder getRequestBuilder = GetRequest.newBuilder();
RegionSpecifier.Builder regionSpecifierBuilder = RegionSpecifier.newBuilder();
regionSpecifierBuilder.setType(RegionSpecifierType.REGION_NAME);
ByteString name = ByteStringer.wrap(HRegionInfo.FIRST_META_REGIONINFO.getRegionName());
regionSpecifierBuilder.setValue(name);
RegionSpecifier regionSpecifier = regionSpecifierBuilder.build();
getRequestBuilder.setRegion(regionSpecifier);
Get.Builder getBuilder = Get.newBuilder();
getBuilder.setRow(ByteStringer.wrap("somerow".getBytes()));
getRequestBuilder.setGet(getBuilder.build());
GetRequest getRequest = getRequestBuilder.build();
RequestHeader header = headerBuilder.build();
HRegion mockRegion = Mockito.mock(HRegion.class);
HRegionServer mockRS = Mockito.mock(HRegionServer.class);
RSRpcServices mockRpc = Mockito.mock(RSRpcServices.class);
Mockito.when(mockRS.getRSRpcServices()).thenReturn(mockRpc);
HRegionInfo mockRegionInfo = Mockito.mock(HRegionInfo.class);
Mockito.when(mockRpc.getRegion((RegionSpecifier)Mockito.any())).thenReturn(mockRegion);
Mockito.when(mockRegion.getRegionInfo()).thenReturn(mockRegionInfo);
Mockito.when(mockRegionInfo.isMetaTable()).thenReturn(true);
// Presume type.
((AnnotationReadingPriorityFunction)priority).setRegionServer(mockRS);
assertEquals(HConstants.HIGH_QOS, priority.getPriority(header, getRequest));
}
@Test
public void testQosFunctionWithoutKnownArgument() throws IOException {
//The request is not using any of the
//known argument classes (it uses one random request class)
//(known argument classes are listed in
//HRegionServer.QosFunctionImpl.knownArgumentClasses)
RequestHeader.Builder headerBuilder = RequestHeader.newBuilder();
headerBuilder.setMethodName("foo");
RequestHeader header = headerBuilder.build();
PriorityFunction qosFunc = regionServer.rpcServices.getPriority();
assertEquals(HConstants.NORMAL_QOS, qosFunc.getPriority(header, null));
}
@Test
public void testQosFunctionForScanMethod() throws IOException {
RequestHeader.Builder headerBuilder = RequestHeader.newBuilder();
headerBuilder.setMethodName("Scan");
RequestHeader header = headerBuilder.build();
//build an empty scan request
ScanRequest.Builder scanBuilder = ScanRequest.newBuilder();
ScanRequest scanRequest = scanBuilder.build();
HRegion mockRegion = Mockito.mock(HRegion.class);
HRegionServer mockRS = Mockito.mock(HRegionServer.class);
RSRpcServices mockRpc = Mockito.mock(RSRpcServices.class);
Mockito.when(mockRS.getRSRpcServices()).thenReturn(mockRpc);
HRegionInfo mockRegionInfo = Mockito.mock(HRegionInfo.class);
Mockito.when(mockRpc.getRegion((RegionSpecifier)Mockito.any())).thenReturn(mockRegion);
Mockito.when(mockRegion.getRegionInfo()).thenReturn(mockRegionInfo);
Mockito.when(mockRegionInfo.isMetaRegion()).thenReturn(false);
// Presume type.
((AnnotationReadingPriorityFunction)priority).setRegionServer(mockRS);
int qos = priority.getPriority(header, scanRequest);
assertTrue ("" + qos, qos == HConstants.NORMAL_QOS);
//build a scan request with scannerID
scanBuilder = ScanRequest.newBuilder();
scanBuilder.setScannerId(12345);
scanRequest = scanBuilder.build();
//mock out a high priority type handling and see the QoS returned
RegionScanner mockRegionScanner = Mockito.mock(RegionScanner.class);
Mockito.when(mockRpc.getScanner(12345)).thenReturn(mockRegionScanner);
Mockito.when(mockRegionScanner.getRegionInfo()).thenReturn(mockRegionInfo);
Mockito.when(mockRpc.getRegion((RegionSpecifier)Mockito.any())).thenReturn(mockRegion);
Mockito.when(mockRegion.getRegionInfo()).thenReturn(mockRegionInfo);
Mockito.when(mockRegionInfo.isMetaRegion()).thenReturn(true);
// Presume type.
((AnnotationReadingPriorityFunction)priority).setRegionServer(mockRS);
assertEquals(HConstants.HIGH_QOS, priority.getPriority(header, scanRequest));
//the same as above but with non-meta region
Mockito.when(mockRegionInfo.isMetaRegion()).thenReturn(false);
assertEquals(HConstants.NORMAL_QOS, priority.getPriority(header, scanRequest));
}
}