/**
* 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 org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.*;
import org.apache.hadoop.hbase.client.*;
import org.apache.hadoop.hbase.test.MetricsAssertHelper;
import org.apache.hadoop.hbase.util.Bytes;
import org.apache.hadoop.hbase.util.Threads;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import java.io.IOException;
@Category(MediumTests.class)
public class TestRegionServerMetrics {
private static final Log LOG = LogFactory.getLog(TestRegionServerMetrics.class);
private static MetricsAssertHelper metricsHelper;
static {
Logger.getLogger("org.apache.hadoop.hbase").setLevel(Level.DEBUG);
}
private static MiniHBaseCluster cluster;
private static HRegionServer rs;
private static Configuration conf;
private static HBaseTestingUtility TEST_UTIL;
private static MetricsRegionServer metricsRegionServer;
private static MetricsRegionServerSource serverSource;
@BeforeClass
public static void startCluster() throws Exception {
metricsHelper = CompatibilityFactory.getInstance(MetricsAssertHelper.class);
TEST_UTIL = new HBaseTestingUtility();
conf = TEST_UTIL.getConfiguration();
conf.getLong("hbase.splitlog.max.resubmit", 0);
// Make the failure test faster
conf.setInt("zookeeper.recovery.retry", 0);
conf.setInt(HConstants.REGIONSERVER_INFO_PORT, -1);
TEST_UTIL.startMiniCluster(1, 1);
cluster = TEST_UTIL.getHBaseCluster();
cluster.waitForActiveAndReadyMaster();
while (cluster.getLiveRegionServerThreads().size() < 1) {
Threads.sleep(100);
}
rs = cluster.getRegionServer(0);
metricsRegionServer = rs.getMetrics();
serverSource = metricsRegionServer.getMetricsSource();
}
@AfterClass
public static void after() throws Exception {
if (TEST_UTIL != null) {
TEST_UTIL.shutdownMiniCluster();
}
}
@Test(timeout = 300000)
public void testRegionCount() throws Exception {
String regionMetricsKey = "regionCount";
long regions = metricsHelper.getGaugeLong(regionMetricsKey, serverSource);
// Creating a table should add one region
TEST_UTIL.createTable(Bytes.toBytes("table"), Bytes.toBytes("cf"));
metricsHelper.assertGaugeGt(regionMetricsKey, regions, serverSource);
}
@Test
public void testLocalFiles() throws Exception {
metricsHelper.assertGauge("percentFilesLocal", 0, serverSource);
}
@Test
public void testRequestCount() throws Exception {
String tableNameString = "testRequestCount";
byte[] tName = Bytes.toBytes(tableNameString);
byte[] cfName = Bytes.toBytes("d");
byte[] row = Bytes.toBytes("rk");
byte[] qualifier = Bytes.toBytes("qual");
byte[] initValue = Bytes.toBytes("Value");
byte[] nextValue = Bytes.toBytes("NEXT VAL");
TEST_UTIL.createTable(tName, cfName);
new HTable(conf, tName).close(); //wait for the table to come up.
metricsRegionServer.getRegionServerWrapper().forceRecompute();
long requests = metricsHelper.getCounter("totalRequestCount", serverSource);
long readRequests = metricsHelper.getCounter("readRequestCount", serverSource);
long writeRequests = metricsHelper.getCounter("writeRequestCount", serverSource);
HTable table = new HTable(conf, tName);
Put p = new Put(row);
p.add(cfName, qualifier, initValue);
for (int i=0; i< 30; i++) {
table.put(p);
}
table.flushCommits();
Get g = new Get(row);
for (int i=0; i< 10; i++) {
table.get(g);
}
for ( HRegionInfo i:table.getRegionLocations().keySet()) {
MetricsRegionAggregateSource agg = rs.getRegion(i.getRegionName())
.getMetrics()
.getSource()
.getAggregateSource();
String prefix = "table."+tableNameString + ".region." + i.getEncodedName();
metricsHelper.assertCounter(prefix + ".getCount", 10, agg);
metricsHelper.assertCounter(prefix + ".multiPutCount", 30, agg);
}
metricsRegionServer.getRegionServerWrapper().forceRecompute();
metricsHelper.assertCounterGt("totalRequestCount", requests + 39, serverSource);
metricsHelper.assertCounterGt("readRequestCount", readRequests + 9, serverSource);
metricsHelper.assertCounterGt("writeRequestCount", writeRequests + 29, serverSource);
}
@Test
public void testPutsWithoutWal() throws Exception {
byte[] tableName = Bytes.toBytes("testPutsWithoutWal");
byte[] cf = Bytes.toBytes("d");
byte[] row = Bytes.toBytes("rk");
byte[] qualifier = Bytes.toBytes("qual");
byte[] val = Bytes.toBytes("Value");
metricsRegionServer.getRegionServerWrapper().forceRecompute();
TEST_UTIL.createTable(tableName, cf);
HTable t = new HTable(conf, tableName);
Put p = new Put(row);
p.add(cf, qualifier, val);
p.setWriteToWAL(false);
t.put(p);
t.flushCommits();
metricsRegionServer.getRegionServerWrapper().forceRecompute();
metricsHelper.assertGauge("putsWithoutWALCount", 1, serverSource);
long minLength = row.length + cf.length + qualifier.length + val.length;
metricsHelper.assertGaugeGt("putsWithoutWALSize", minLength, serverSource);
}
@Test
public void testStoreCount() throws Exception {
byte[] tableName = Bytes.toBytes("testStoreCount");
byte[] cf = Bytes.toBytes("d");
byte[] row = Bytes.toBytes("rk");
byte[] qualifier = Bytes.toBytes("qual");
byte[] val = Bytes.toBytes("Value");
metricsRegionServer.getRegionServerWrapper().forceRecompute();
long stores = metricsHelper.getGaugeLong("storeCount", serverSource);
long storeFiles = metricsHelper.getGaugeLong("storeFileCount", serverSource);
TEST_UTIL.createTable(tableName, cf);
//Force a hfile.
HTable t = new HTable(conf, tableName);
Put p = new Put(row);
p.add(cf, qualifier, val);
t.put(p);
t.flushCommits();
TEST_UTIL.getHBaseAdmin().flush(tableName);
metricsRegionServer.getRegionServerWrapper().forceRecompute();
metricsHelper.assertGauge("storeCount", stores +1, serverSource);
metricsHelper.assertGauge("storeFileCount", storeFiles + 1, serverSource);
}
@Test
public void testCheckAndPutCount() throws Exception {
String tableNameString = "testCheckAndPutCount";
byte[] tableName = Bytes.toBytes(tableNameString);
byte[] cf = Bytes.toBytes("d");
byte[] row = Bytes.toBytes("rk");
byte[] qualifier = Bytes.toBytes("qual");
byte[] valOne = Bytes.toBytes("Value");
byte[] valTwo = Bytes.toBytes("ValueTwo");
byte[] valThree = Bytes.toBytes("ValueThree");
TEST_UTIL.createTable(tableName, cf);
HTable t = new HTable(conf, tableName);
Put p = new Put(row);
p.add(cf, qualifier, valOne);
t.put(p);
t.flushCommits();
Put pTwo = new Put(row);
pTwo.add(cf, qualifier, valTwo);
t.checkAndPut(row, cf, qualifier, valOne, pTwo);
t.flushCommits();
Put pThree = new Put(row);
pThree.add(cf, qualifier, valThree);
t.checkAndPut(row, cf, qualifier, valOne, pThree);
t.flushCommits();
metricsRegionServer.getRegionServerWrapper().forceRecompute();
metricsHelper.assertCounter("checkMutateFailedCount", 1, serverSource);
metricsHelper.assertCounter("checkMutatePassedCount", 1, serverSource);
}
@Test
public void testIncrement() throws Exception {
String tableNameString = "testIncrement";
byte[] tableName = Bytes.toBytes(tableNameString);
byte[] cf = Bytes.toBytes("d");
byte[] row = Bytes.toBytes("rk");
byte[] qualifier = Bytes.toBytes("qual");
byte[] val = Bytes.toBytes(0l);
TEST_UTIL.createTable(tableName, cf);
HTable t = new HTable(conf, tableName);
Put p = new Put(row);
p.add(cf, qualifier, val);
t.put(p);
t.flushCommits();
for(int count = 0; count< 13; count++) {
Increment inc = new Increment(row);
inc.addColumn(cf, qualifier, 100);
t.increment(inc);
}
t.flushCommits();
metricsRegionServer.getRegionServerWrapper().forceRecompute();
metricsHelper.assertCounter("incrementNumOps", 13, serverSource);
}
@Test
public void testAppend() throws Exception {
String tableNameString = "testAppend";
byte[] tableName = Bytes.toBytes(tableNameString);
byte[] cf = Bytes.toBytes("d");
byte[] row = Bytes.toBytes("rk");
byte[] qualifier = Bytes.toBytes("qual");
byte[] val = Bytes.toBytes("One");
TEST_UTIL.createTable(tableName, cf);
HTable t = new HTable(conf, tableName);
Put p = new Put(row);
p.add(cf, qualifier, val);
t.put(p);
t.flushCommits();
for(int count = 0; count< 73; count++) {
Append append = new Append(row);
append.add(cf, qualifier, Bytes.toBytes(",Test"));
t.append(append);
}
t.flushCommits();
metricsRegionServer.getRegionServerWrapper().forceRecompute();
metricsHelper.assertCounter("appendNumOps", 73, serverSource);
}
}