HBASE-23789 [Flakey Tests] ERROR [Time-limited test] balancer.HeterogeneousRegionCountCostFunction(199): cannot read rules file located at ' /tmp/hbase-balancer.rules '; ADDENDUM Missed adding these files.

This commit is contained in:
stack 2020-02-04 16:39:33 -08:00
parent 9cc7a711e6
commit 3a1a39d40d
4 changed files with 133 additions and 82 deletions

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@ -249,7 +249,7 @@ public class HeterogeneousRegionCountCostFunction extends StochasticLoadBalancer
LOG.info("Cluster can hold " + this.cluster.numRegions + "/" + this.totalCapacity + " regions ("
+ Math.round(overallUsage * 100) + "%)");
if (overallUsage >= 1) {
LOG.warn("Cluster is overused");
LOG.warn("Cluster is overused, {}", overallUsage);
}
}

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@ -401,9 +401,9 @@ public class HBaseTestingUtility extends HBaseZKTestingUtility {
* value unintentionally -- but not anything can do about it at moment;
* single instance only is how the minidfscluster works.
*
* We also create the underlying directory for
* We also create the underlying directory names for
* hadoop.log.dir, mapreduce.cluster.local.dir and hadoop.tmp.dir, and set the values
* in the conf, and as a system property for hadoop.tmp.dir
* in the conf, and as a system property for hadoop.tmp.dir (We do not create them!).
*
* @return The calculated data test build directory, if newly-created.
*/

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@ -1,4 +1,4 @@
/**
/*
* 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
@ -17,7 +17,6 @@ package org.apache.hadoop.hbase.master.balancer;
import static junit.framework.TestCase.assertNotNull;
import static junit.framework.TestCase.assertTrue;
import static org.junit.Assert.assertNull;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
@ -29,8 +28,9 @@ import java.util.Random;
import java.util.TreeMap;
import java.util.concurrent.ThreadLocalRandom;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionReplicaUtil;
@ -47,29 +47,32 @@ import org.slf4j.LoggerFactory;
@Category({ MasterTests.class, MediumTests.class })
public class TestStochasticLoadBalancerHeterogeneousCost extends BalancerTestBase {
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestStochasticLoadBalancerHeterogeneousCost.class);
private static final Logger LOG =
LoggerFactory.getLogger(TestStochasticLoadBalancerHeterogeneousCost.class);
private static final double allowedWindow = 1.20;
private static final double ALLOWED_WINDOW = 1.20;
private static final HBaseTestingUtility HTU = new HBaseTestingUtility();
private static String RULES_FILE;
@BeforeClass
public static void beforeAllTests() {
BalancerTestBase.conf = HBaseConfiguration.create();
public static void beforeAllTests() throws IOException {
BalancerTestBase.conf = HTU.getConfiguration();
BalancerTestBase.conf.setFloat("hbase.master.balancer.stochastic.regionCountCost", 0);
BalancerTestBase.conf.setFloat("hbase.master.balancer.stochastic.primaryRegionCountCost", 0);
BalancerTestBase.conf.setFloat("hbase.master.balancer.stochastic.tableSkewCost", 0);
BalancerTestBase.conf.setBoolean("hbase.master.balancer.stochastic.runMaxSteps", true);
BalancerTestBase.conf.set(StochasticLoadBalancer.COST_FUNCTIONS_COST_FUNCTIONS_KEY,
HeterogeneousRegionCountCostFunction.class.getName());
// Need to ensure test dir has been created.
assertTrue(FileSystem.get(HTU.getConfiguration()).mkdirs(HTU.getDataTestDir()));
RULES_FILE = HTU.getDataTestDir(
TestStochasticLoadBalancerHeterogeneousCostRules.DEFAULT_RULES_FILE_NAME).toString();
BalancerTestBase.conf.set(
HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
TestStochasticLoadBalancerHeterogeneousCostRules.DEFAULT_RULES_TMP_LOCATION);
RULES_FILE);
BalancerTestBase.loadBalancer = new StochasticLoadBalancer();
BalancerTestBase.loadBalancer.setConf(BalancerTestBase.conf);
}
@ -142,7 +145,7 @@ public class TestStochasticLoadBalancerHeterogeneousCost extends BalancerTestBas
final int numRegions = 120;
final int numRegionsPerServer = 60;
TestStochasticLoadBalancerHeterogeneousCostRules.createSimpleRulesFile(rules);
TestStochasticLoadBalancerHeterogeneousCostRules.createRulesFile(RULES_FILE);
final Map<ServerName, List<RegionInfo>> serverMap =
this.createServerMap(numNodes, numRegions, numRegionsPerServer, 1, 1);
final List<RegionPlan> plans = BalancerTestBase.loadBalancer.balanceCluster(serverMap);
@ -154,7 +157,7 @@ public class TestStochasticLoadBalancerHeterogeneousCost extends BalancerTestBas
private void testHeterogeneousWithCluster(final int numNodes, final int numRegions,
final int numRegionsPerServer, final List<String> rules) throws IOException {
TestStochasticLoadBalancerHeterogeneousCostRules.createSimpleRulesFile(rules);
TestStochasticLoadBalancerHeterogeneousCostRules.createRulesFile(RULES_FILE, rules);
final Map<ServerName, List<RegionInfo>> serverMap =
this.createServerMap(numNodes, numRegions, numRegionsPerServer, 1, 1);
this.testWithCluster(serverMap, null, true, false);
@ -207,8 +210,9 @@ public class TestStochasticLoadBalancerHeterogeneousCost extends BalancerTestBas
// as the balancer is stochastic, we cannot check exactly the result of the balancing,
// hence the allowedWindow parameter
assertTrue("Host " + sn.getHostname() + " should be below "
+ cf.overallUsage * allowedWindow * 100 + "%",
usage <= cf.overallUsage * allowedWindow);
+ cf.overallUsage * ALLOWED_WINDOW * 100 + "%; " + cf.overallUsage +
", " + usage + ", " + numberRegions + ", " + limit,
usage <= cf.overallUsage * ALLOWED_WINDOW);
}
}

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@ -1,4 +1,4 @@
/**
/*
* 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
@ -14,148 +14,195 @@
*/
package org.apache.hadoop.hbase.master.balancer;
import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.nio.file.FileSystems;
import java.nio.file.NoSuchFileException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.testclassification.MasterTests;
import org.apache.hadoop.hbase.testclassification.MediumTests;
import org.apache.hadoop.hdfs.DistributedFileSystem;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.Before;
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 static junit.framework.TestCase.assertTrue;
@Category({ MasterTests.class, MediumTests.class })
public class TestStochasticLoadBalancerHeterogeneousCostRules extends BalancerTestBase {
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestStochasticLoadBalancerHeterogeneousCostRules.class);
@Rule
public TestName name = new TestName();
static final String DEFAULT_RULES_TMP_LOCATION = "/tmp/hbase-balancer.rules";
static Configuration conf;
static final String DEFAULT_RULES_FILE_NAME = "hbase-balancer.rules";
private HeterogeneousRegionCountCostFunction costFunction;
private static final HBaseTestingUtility HTU = new HBaseTestingUtility();
/**
* Make a file for rules that is inside a temporary test dir named for the method so it doesn't
* clash w/ other rule files.
*/
private String rulesFilename;
@BeforeClass
public static void beforeAllTests() throws Exception {
createSimpleRulesFile(new ArrayList<>());
conf = new Configuration();
conf.set(HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
DEFAULT_RULES_TMP_LOCATION);
public static void beforeClass() throws IOException {
// Ensure test dir is created
HTU.getTestFileSystem().mkdirs(HTU.getDataTestDir());
}
static void createSimpleRulesFile(final List<String> lines) throws IOException {
cleanup();
final Path file = Paths.get(DEFAULT_RULES_TMP_LOCATION);
Files.write(file, lines, Charset.forName("UTF-8"));
@Before
public void before() throws IOException {
// New rules file name per test.
this.rulesFilename = HTU.getDataTestDir(
this.name.getMethodName() + "." + DEFAULT_RULES_FILE_NAME).toString();
// Set the created rules filename into the configuration.
HTU.getConfiguration().set(
HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
this.rulesFilename);
}
protected static void cleanup() {
final File file = new File(DEFAULT_RULES_TMP_LOCATION);
file.delete();
/**
* @param file Name of file to write rules into.
* @return Full file name of the rules file which is <code>dir</code> + DEFAULT_RULES_FILE_NAME.
*/
static String createRulesFile(String file, final List<String> lines) throws IOException {
cleanup(file);
java.nio.file.Path path =
java.nio.file.Files.createFile(FileSystems.getDefault().getPath(file));
return java.nio.file.Files.write(path, lines, Charset.forName("UTF-8")).toString();
}
@AfterClass
public static void afterAllTests() {
cleanup();
/**
* @param file Name of file to write rules into.
* @return Full file name of the rules file which is <code>dir</code> + DEFAULT_RULES_FILE_NAME.
*/
static String createRulesFile(String file) throws IOException {
return createRulesFile(file, Collections.emptyList());
}
private static void cleanup(String file) throws IOException {
try {
java.nio.file.Files.delete(FileSystems.getDefault().getPath(file));
} catch (NoSuchFileException nsfe) {
System.out.println("FileNotFoundException for " + file);
}
}
@Test
public void testNoRules() {
cleanup();
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
public void testNoRules() throws IOException {
// Override what is in the configuration with the name of a non-existent file!
HTU.getConfiguration().set(
HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
"non-existent-file!");
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(0, this.costFunction.getNumberOfRulesLoaded());
}
@Test
public void testBadFormatInRules() throws IOException {
createSimpleRulesFile(new ArrayList<>());
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
// See {@link #before} above. It sets this.rulesFilename, and
// HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
// in the configuration.
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(0, this.costFunction.getNumberOfRulesLoaded());
createSimpleRulesFile(Collections.singletonList("bad rules format"));
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
createRulesFile(this.rulesFilename, Collections.singletonList("bad rules format"));
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(0, this.costFunction.getNumberOfRulesLoaded());
createSimpleRulesFile(Arrays.asList("srv[1-2] 10", "bad_rules format", "a"));
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
createRulesFile(this.rulesFilename, Arrays.asList("srv[1-2] 10",
"bad_rules format", "a"));
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(1, this.costFunction.getNumberOfRulesLoaded());
}
@Test
public void testTwoRules() throws IOException {
createSimpleRulesFile(Arrays.asList("^server1$ 10", "^server2 21"));
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
// See {@link #before} above. It sets this.rulesFilename, and
// HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
// in the configuration.
// See {@link #before} above. It sets
// HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
// in the configuration.
createRulesFile(this.rulesFilename, Arrays.asList("^server1$ 10", "^server2 21"));
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(2, this.costFunction.getNumberOfRulesLoaded());
}
@Test
public void testBadRegexp() throws IOException {
createSimpleRulesFile(Collections.singletonList("server[ 1"));
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
// See {@link #before} above. It sets this.rulesFilename, and
// HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
// in the configuration.
// See {@link #before} above. It sets
// HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
// in the configuration.
createRulesFile(this.rulesFilename, Collections.singletonList("server[ 1"));
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(0, this.costFunction.getNumberOfRulesLoaded());
}
@Test
public void testNoOverride() throws IOException {
createSimpleRulesFile(Arrays.asList("^server1$ 10", "^server2 21"));
this.costFunction = new HeterogeneousRegionCountCostFunction(conf);
// See {@link #before} above. It sets this.rulesFilename, and
// HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
// in the configuration.
createRulesFile(this.rulesFilename, Arrays.asList("^server1$ 10", "^server2 21"));
this.costFunction = new HeterogeneousRegionCountCostFunction(HTU.getConfiguration());
this.costFunction.loadRules();
Assert.assertEquals(2, this.costFunction.getNumberOfRulesLoaded());
// loading malformed configuration does not overload current
cleanup();
cleanup(this.rulesFilename);
this.costFunction.loadRules();
Assert.assertEquals(2, this.costFunction.getNumberOfRulesLoaded());
}
@Test
public void testLoadingFomHDFS() throws Exception {
HBaseTestingUtility hBaseTestingUtility = new HBaseTestingUtility();
hBaseTestingUtility.startMiniDFSCluster(3);
MiniDFSCluster cluster = hBaseTestingUtility.getDFSCluster();
HTU.startMiniDFSCluster(3);
try {
MiniDFSCluster cluster = HTU.getDFSCluster();
DistributedFileSystem fs = cluster.getFileSystem();
String path = cluster.getURI() + DEFAULT_RULES_TMP_LOCATION;
// writing file
FSDataOutputStream stream = fs.create(new org.apache.hadoop.fs.Path(path));
// Writing file
Path path = new Path(fs.getHomeDirectory(), DEFAULT_RULES_FILE_NAME);
FSDataOutputStream stream = fs.create(path);
stream.write("server1 10".getBytes());
stream.flush();
stream.close();
Configuration configuration = hBaseTestingUtility.getConfiguration();
Configuration configuration = HTU.getConfiguration();
// start costFunction
configuration.set(
HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE, path);
HeterogeneousRegionCountCostFunction.HBASE_MASTER_BALANCER_HETEROGENEOUS_RULES_FILE,
path.toString());
this.costFunction = new HeterogeneousRegionCountCostFunction(configuration);
this.costFunction.loadRules();
Assert.assertEquals(1, this.costFunction.getNumberOfRulesLoaded());
hBaseTestingUtility.shutdownMiniCluster();
} finally {
HTU.shutdownMiniCluster();
}
}
}