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Posted to commits@accumulo.apache.org by el...@apache.org on 2014/05/15 20:34:42 UTC
[05/10] git commit: Merge branch '1.5.2-SNAPSHOT' into 1.6.1-SNAPSHOT
Merge branch '1.5.2-SNAPSHOT' into 1.6.1-SNAPSHOT
Conflicts:
minicluster/src/main/java/org/apache/accumulo/minicluster/MiniAccumuloCluster.java
Project: http://git-wip-us.apache.org/repos/asf/accumulo/repo
Commit: http://git-wip-us.apache.org/repos/asf/accumulo/commit/652253e0
Tree: http://git-wip-us.apache.org/repos/asf/accumulo/tree/652253e0
Diff: http://git-wip-us.apache.org/repos/asf/accumulo/diff/652253e0
Branch: refs/heads/master
Commit: 652253e01119e5c0445359c649316aa2d21dd718
Parents: c57bc8d 57f2763
Author: Josh Elser <el...@apache.org>
Authored: Thu May 15 14:13:54 2014 -0400
Committer: Josh Elser <el...@apache.org>
Committed: Thu May 15 14:13:54 2014 -0400
----------------------------------------------------------------------
.../impl/MiniAccumuloClusterImpl.java | 61 +++++++++++++++++---
1 file changed, 53 insertions(+), 8 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/accumulo/blob/652253e0/minicluster/src/main/java/org/apache/accumulo/minicluster/impl/MiniAccumuloClusterImpl.java
----------------------------------------------------------------------
diff --cc minicluster/src/main/java/org/apache/accumulo/minicluster/impl/MiniAccumuloClusterImpl.java
index ce482f5,0000000..ef5056c
mode 100644,000000..100644
--- a/minicluster/src/main/java/org/apache/accumulo/minicluster/impl/MiniAccumuloClusterImpl.java
+++ b/minicluster/src/main/java/org/apache/accumulo/minicluster/impl/MiniAccumuloClusterImpl.java
@@@ -1,667 -1,0 +1,712 @@@
+/*
+ * 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.accumulo.minicluster.impl;
+
+import java.io.BufferedReader;
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileFilter;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Properties;
+import java.util.Set;
++import java.util.concurrent.Callable;
++import java.util.concurrent.ExecutionException;
++import java.util.concurrent.ExecutorService;
++import java.util.concurrent.Executors;
++import java.util.concurrent.FutureTask;
++import java.util.concurrent.TimeUnit;
++import java.util.concurrent.TimeoutException;
+
+import org.apache.accumulo.cluster.AccumuloCluster;
+import org.apache.accumulo.core.client.AccumuloException;
+import org.apache.accumulo.core.client.AccumuloSecurityException;
+import org.apache.accumulo.core.client.ClientConfiguration;
+import org.apache.accumulo.core.client.Connector;
+import org.apache.accumulo.core.client.Instance;
+import org.apache.accumulo.core.client.ZooKeeperInstance;
+import org.apache.accumulo.core.client.security.tokens.PasswordToken;
+import org.apache.accumulo.core.conf.Property;
+import org.apache.accumulo.core.master.thrift.MasterGoalState;
+import org.apache.accumulo.core.util.Daemon;
+import org.apache.accumulo.core.util.Pair;
+import org.apache.accumulo.core.util.StringUtil;
+import org.apache.accumulo.core.util.UtilWaitThread;
+import org.apache.accumulo.gc.SimpleGarbageCollector;
+import org.apache.accumulo.master.Master;
+import org.apache.accumulo.master.state.SetGoalState;
+import org.apache.accumulo.minicluster.ServerType;
+import org.apache.accumulo.server.init.Initialize;
+import org.apache.accumulo.server.util.PortUtils;
+import org.apache.accumulo.server.util.time.SimpleTimer;
+import org.apache.accumulo.start.Main;
+import org.apache.accumulo.start.classloader.vfs.MiniDFSUtil;
+import org.apache.accumulo.tserver.TabletServer;
+import org.apache.commons.configuration.MapConfiguration;
+import org.apache.commons.vfs2.FileObject;
+import org.apache.commons.vfs2.impl.VFSClassLoader;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.hdfs.DFSConfigKeys;
+import org.apache.hadoop.hdfs.MiniDFSCluster;
++import org.apache.log4j.Logger;
+import org.apache.zookeeper.server.ZooKeeperServerMain;
+
+import com.google.common.base.Predicate;
+import com.google.common.collect.Maps;
+
+/**
+ * A utility class that will create Zookeeper and Accumulo processes that write all of their data to a single local directory. This class makes it easy to test
+ * code against a real Accumulo instance. Its much more accurate for testing than {@link org.apache.accumulo.core.client.mock.MockAccumulo}, but much slower.
+ *
+ * @since 1.6.0
+ */
+public class MiniAccumuloClusterImpl implements AccumuloCluster {
++ private static final Logger log = Logger.getLogger(MiniAccumuloClusterImpl.class);
+
+ public static class LogWriter extends Daemon {
+ private BufferedReader in;
+ private BufferedWriter out;
+
+ public LogWriter(InputStream stream, File logFile) throws IOException {
+ this.in = new BufferedReader(new InputStreamReader(stream));
+ out = new BufferedWriter(new FileWriter(logFile));
+
+ SimpleTimer.getInstance().schedule(new Runnable() {
+ @Override
+ public void run() {
+ try {
+ flush();
+ } catch (IOException e) {
+ e.printStackTrace();
+ }
+ }
+ }, 1000, 1000);
+ }
+
+ public synchronized void flush() throws IOException {
+ if (out != null)
+ out.flush();
+ }
+
+ @Override
+ public void run() {
+ String line;
+
+ try {
+ while ((line = in.readLine()) != null) {
+ out.append(line);
+ out.append("\n");
+ }
+
+ synchronized (this) {
+ out.close();
+ out = null;
+ in.close();
+ }
+
+ } catch (IOException e) {}
+ }
+ }
+
+ private static final long ZOOKEEPER_STARTUP_WAIT = 20*1000;
+
+ private boolean initialized = false;
+ private Process zooKeeperProcess = null;
+ private Process masterProcess = null;
+ private Process gcProcess = null;
+ private List<Process> tabletServerProcesses = Collections.synchronizedList(new ArrayList<Process>());
+
+ private Set<Pair<ServerType,Integer>> debugPorts = new HashSet<Pair<ServerType,Integer>>();
+
+ private File zooCfgFile;
+ private String dfsUri;
+
+ public List<LogWriter> getLogWriters() {
+ return logWriters;
+ }
+
+ private List<LogWriter> logWriters = new ArrayList<MiniAccumuloClusterImpl.LogWriter>();
+
+ private MiniAccumuloConfigImpl config;
+ private MiniDFSCluster miniDFS = null;
+ private List<Process> cleanup = new ArrayList<Process>();
+
+ public Process exec(Class<?> clazz, String... args) throws IOException {
+ return exec(clazz, null, args);
+ }
+
+ public Process exec(Class<?> clazz, List<String> jvmArgs, String... args) throws IOException {
+ ArrayList<String> jvmArgs2 = new ArrayList<String>(1 + (jvmArgs == null ? 0 : jvmArgs.size()));
+ jvmArgs2.add("-Xmx" + config.getDefaultMemory());
+ if (jvmArgs != null)
+ jvmArgs2.addAll(jvmArgs);
+ Process proc = _exec(clazz, jvmArgs2, args);
+ cleanup.add(proc);
+ return proc;
+ }
+
+ private boolean containsSiteFile(File f) {
+ return f.isDirectory() && f.listFiles(new FileFilter() {
+
+ @Override
+ public boolean accept(File pathname) {
+ return pathname.getName().endsWith("site.xml");
+ }
+ }).length > 0;
+ }
+
+ private void append(StringBuilder classpathBuilder, URL url) throws URISyntaxException {
+ File file = new File(url.toURI());
+ // do not include dirs containing hadoop or accumulo site files
+ if (!containsSiteFile(file))
+ classpathBuilder.append(File.pathSeparator).append(file.getAbsolutePath());
+ }
+
+ private String getClasspath() throws IOException {
+
+ try {
+ ArrayList<ClassLoader> classloaders = new ArrayList<ClassLoader>();
+
+ ClassLoader cl = this.getClass().getClassLoader();
+
+ while (cl != null) {
+ classloaders.add(cl);
+ cl = cl.getParent();
+ }
+
+ Collections.reverse(classloaders);
+
+ StringBuilder classpathBuilder = new StringBuilder();
+ classpathBuilder.append(config.getConfDir().getAbsolutePath());
+
+ if (config.getClasspathItems() == null) {
+
+ // assume 0 is the system classloader and skip it
+ for (int i = 1; i < classloaders.size(); i++) {
+ ClassLoader classLoader = classloaders.get(i);
+
+ if (classLoader instanceof URLClassLoader) {
+
+ URLClassLoader ucl = (URLClassLoader) classLoader;
+
+ for (URL u : ucl.getURLs()) {
+ append(classpathBuilder, u);
+ }
+
+ } else if (classLoader instanceof VFSClassLoader) {
+
+ VFSClassLoader vcl = (VFSClassLoader) classLoader;
+ for (FileObject f : vcl.getFileObjects()) {
+ append(classpathBuilder, f.getURL());
+ }
+ } else {
+ throw new IllegalArgumentException("Unknown classloader type : " + classLoader.getClass().getName());
+ }
+ }
+ } else {
+ for (String s : config.getClasspathItems())
+ classpathBuilder.append(File.pathSeparator).append(s);
+ }
+
+ return classpathBuilder.toString();
+
+ } catch (URISyntaxException e) {
+ throw new IOException(e);
+ }
+ }
+
+ private Process _exec(Class<?> clazz, List<String> extraJvmOpts, String... args) throws IOException {
+ String javaHome = System.getProperty("java.home");
+ String javaBin = javaHome + File.separator + "bin" + File.separator + "java";
+ String classpath = getClasspath();
+
+ String className = clazz.getName();
+
+ ArrayList<String> argList = new ArrayList<String>();
+ argList.addAll(Arrays.asList(javaBin, "-Dproc=" + clazz.getSimpleName(), "-cp", classpath));
+ argList.addAll(extraJvmOpts);
+ for (Entry<String,String> sysProp : config.getSystemProperties().entrySet()) {
+ argList.add(String.format("-D%s=%s", sysProp.getKey(), sysProp.getValue()));
+ }
+ argList.addAll(Arrays.asList("-XX:+UseConcMarkSweepGC", "-XX:CMSInitiatingOccupancyFraction=75", "-Dapple.awt.UIElement=true", Main.class.getName(), className));
+ argList.addAll(Arrays.asList(args));
+
+ ProcessBuilder builder = new ProcessBuilder(argList);
+
+ builder.environment().put("ACCUMULO_HOME", config.getDir().getAbsolutePath());
+ builder.environment().put("ACCUMULO_LOG_DIR", config.getLogDir().getAbsolutePath());
+ builder.environment().put("ACCUMULO_CLIENT_CONF_PATH", config.getClientConfFile().getAbsolutePath());
+ String ldLibraryPath = StringUtil.join(Arrays.asList(config.getNativeLibPaths()), File.pathSeparator);
+ builder.environment().put("LD_LIBRARY_PATH", ldLibraryPath);
+ builder.environment().put("DYLD_LIBRARY_PATH", ldLibraryPath);
+
+ // if we're running under accumulo.start, we forward these env vars
+ String env = System.getenv("HADOOP_PREFIX");
+ if (env != null)
+ builder.environment().put("HADOOP_PREFIX", env);
+ env = System.getenv("ZOOKEEPER_HOME");
+ if (env != null)
+ builder.environment().put("ZOOKEEPER_HOME", env);
+ builder.environment().put("ACCUMULO_CONF_DIR", config.getConfDir().getAbsolutePath());
+ // hadoop-2.2 puts error messages in the logs if this is not set
+ builder.environment().put("HADOOP_HOME", config.getDir().getAbsolutePath());
+
+ Process process = builder.start();
+
+ LogWriter lw;
+ lw = new LogWriter(process.getErrorStream(), new File(config.getLogDir(), clazz.getSimpleName() + "_" + process.hashCode() + ".err"));
+ logWriters.add(lw);
+ lw.start();
+ lw = new LogWriter(process.getInputStream(), new File(config.getLogDir(), clazz.getSimpleName() + "_" + process.hashCode() + ".out"));
+ logWriters.add(lw);
+ lw.start();
+
+ return process;
+ }
+
+ private Process _exec(Class<?> clazz, ServerType serverType, String... args) throws IOException {
+
+ List<String> jvmOpts = new ArrayList<String>();
+ jvmOpts.add("-Xmx" + config.getMemory(serverType));
+
+ if (config.isJDWPEnabled()) {
+ Integer port = PortUtils.getRandomFreePort();
+ jvmOpts.addAll(buildRemoteDebugParams(port));
+ debugPorts.add(new Pair<ServerType,Integer>(serverType, port));
+ }
+ return _exec(clazz, jvmOpts, args);
+ }
+
+ /**
+ *
+ * @param dir
+ * An empty or nonexistant temp directoy that Accumulo and Zookeeper can store data in. Creating the directory is left to the user. Java 7, Guava,
+ * and Junit provide methods for creating temporary directories.
+ * @param rootPassword
+ * Initial root password for instance.
+ */
+ public MiniAccumuloClusterImpl(File dir, String rootPassword) throws IOException {
+ this(new MiniAccumuloConfigImpl(dir, rootPassword));
+ }
+
+ /**
+ * @param config
+ * initial configuration
+ */
+ @SuppressWarnings("deprecation")
+ public MiniAccumuloClusterImpl(MiniAccumuloConfigImpl config) throws IOException {
+
+ this.config = config.initialize();
+
+ config.getConfDir().mkdirs();
+ config.getAccumuloDir().mkdirs();
+ config.getZooKeeperDir().mkdirs();
+ config.getLogDir().mkdirs();
+ config.getWalogDir().mkdirs();
+ config.getLibDir().mkdirs();
+ config.getLibExtDir().mkdirs();
+
+ if (config.useMiniDFS()) {
+ File nn = new File(config.getAccumuloDir(), "nn");
+ nn.mkdirs();
+ File dn = new File(config.getAccumuloDir(), "dn");
+ dn.mkdirs();
+ File dfs = new File(config.getAccumuloDir(), "dfs");
+ dfs.mkdirs();
+ Configuration conf = new Configuration();
+ conf.set(DFSConfigKeys.DFS_NAMENODE_NAME_DIR_KEY, nn.getAbsolutePath());
+ conf.set(DFSConfigKeys.DFS_DATANODE_DATA_DIR_KEY, dn.getAbsolutePath());
+ conf.set(DFSConfigKeys.DFS_REPLICATION_KEY, "1");
+ conf.set("dfs.support.append", "true");
+ conf.set("dfs.datanode.synconclose", "true");
+ conf.set("dfs.datanode.data.dir.perm", MiniDFSUtil.computeDatanodeDirectoryPermission());
+ String oldTestBuildData = System.setProperty("test.build.data", dfs.getAbsolutePath());
+ miniDFS = new MiniDFSCluster(conf, 1, true, null);
+ if (oldTestBuildData == null)
+ System.clearProperty("test.build.data");
+ else
+ System.setProperty("test.build.data", oldTestBuildData);
+ miniDFS.waitClusterUp();
+ InetSocketAddress dfsAddress = miniDFS.getNameNode().getNameNodeAddress();
+ dfsUri = "hdfs://" + dfsAddress.getHostName() + ":" + dfsAddress.getPort();
+ File coreFile = new File(config.getConfDir(), "core-site.xml");
+ writeConfig(coreFile, Collections.singletonMap("fs.default.name", dfsUri).entrySet());
+ File hdfsFile = new File(config.getConfDir(), "hdfs-site.xml");
+ writeConfig(hdfsFile, conf);
+
+ Map<String,String> siteConfig = config.getSiteConfig();
+ siteConfig.put(Property.INSTANCE_DFS_URI.getKey(), dfsUri);
+ siteConfig.put(Property.INSTANCE_DFS_DIR.getKey(), "/accumulo");
+ config.setSiteConfig(siteConfig);
+ } else {
+ dfsUri = "file://";
+ }
+
+ File clientConfFile = config.getClientConfFile();
+ // Write only the properties that correspond to ClientConfiguration properties
+ writeConfigProperties(clientConfFile, Maps.filterEntries(config.getSiteConfig(), new Predicate<Entry<String,String>>() {
+ @Override
+ public boolean apply(Entry<String,String> v) {
+ return ClientConfiguration.ClientProperty.getPropertyByKey(v.getKey()) != null;
+ }
+ }));
+
+ File siteFile = new File(config.getConfDir(), "accumulo-site.xml");
+ writeConfig(siteFile, config.getSiteConfig().entrySet());
+
+ zooCfgFile = new File(config.getConfDir(), "zoo.cfg");
+ FileWriter fileWriter = new FileWriter(zooCfgFile);
+
+ // zookeeper uses Properties to read its config, so use that to write in order to properly escape things like Windows paths
+ Properties zooCfg = new Properties();
+ zooCfg.setProperty("tickTime", "2000");
+ zooCfg.setProperty("initLimit", "10");
+ zooCfg.setProperty("syncLimit", "5");
+ zooCfg.setProperty("clientPort", config.getZooKeeperPort() + "");
+ zooCfg.setProperty("maxClientCnxns", "1000");
+ zooCfg.setProperty("dataDir", config.getZooKeeperDir().getAbsolutePath());
+ zooCfg.store(fileWriter, null);
+
+ fileWriter.close();
+ }
+
+ private void writeConfig(File file, Iterable<Map.Entry<String,String>> settings) throws IOException {
+ FileWriter fileWriter = new FileWriter(file);
+ fileWriter.append("<configuration>\n");
+
+ for (Entry<String,String> entry : settings) {
+ String value = entry.getValue().replace("&", "&").replace("<", "<").replace(">", ">");
+ fileWriter.append("<property><name>" + entry.getKey() + "</name><value>" + value + "</value></property>\n");
+ }
+ fileWriter.append("</configuration>\n");
+ fileWriter.close();
+ }
+
+ private void writeConfigProperties(File file, Map<String,String> settings) throws IOException {
+ FileWriter fileWriter = new FileWriter(file);
+
+ for (Entry<String,String> entry : settings.entrySet())
+ fileWriter.append(entry.getKey() + "=" + entry.getValue() + "\n");
+ fileWriter.close();
+ }
+
+ /**
+ * Starts Accumulo and Zookeeper processes. Can only be called once.
+ *
+ * @throws IllegalStateException
+ * if already started
+ */
+ @Override
+ public void start() throws IOException, InterruptedException {
+
+ if (!initialized) {
+
+ Runtime.getRuntime().addShutdownHook(new Thread() {
+ @Override
+ public void run() {
+ try {
+ MiniAccumuloClusterImpl.this.stop();
+ } catch (IOException e) {
+ e.printStackTrace();
+ } catch (InterruptedException e) {
+ e.printStackTrace();
+ }
+ }
+ });
+ }
+
+ if (zooKeeperProcess == null) {
+ zooKeeperProcess = _exec(ZooKeeperServerMain.class, ServerType.ZOOKEEPER, zooCfgFile.getAbsolutePath());
+ }
+
+ if (!initialized) {
+ // sleep a little bit to let zookeeper come up before calling init, seems to work better
+ long startTime = System.currentTimeMillis();
+ while (true) {
+ Socket s = null;
+ try {
+ s = new Socket("localhost", config.getZooKeeperPort());
+ s.getOutputStream().write("ruok\n".getBytes());
+ s.getOutputStream().flush();
+ byte buffer[] = new byte[100];
+ int n = s.getInputStream().read(buffer);
+ if (n >= 4 && new String(buffer, 0, 4).equals("imok"))
+ break;
+ } catch (Exception e) {
+ if (System.currentTimeMillis() - startTime >= ZOOKEEPER_STARTUP_WAIT) {
+ throw new RuntimeException("Zookeeper did not start within " + (ZOOKEEPER_STARTUP_WAIT/1000) + " seconds. Check the logs in " + config.getLogDir() + " for errors. Last exception: " + e);
+ }
+ UtilWaitThread.sleep(250);
+ } finally {
+ if (s != null)
+ s.close();
+ }
+ }
+ Process initProcess = exec(Initialize.class, "--instance-name", config.getInstanceName(), "--password", config.getRootPassword());
+ int ret = initProcess.waitFor();
+ if (ret != 0) {
+ throw new RuntimeException("Initialize process returned " + ret + ". Check the logs in " + config.getLogDir() + " for errors.");
+ }
+ initialized = true;
+ }
+ synchronized (tabletServerProcesses) {
+ for (int i = tabletServerProcesses.size(); i < config.getNumTservers(); i++) {
+ tabletServerProcesses.add(_exec(TabletServer.class, ServerType.TABLET_SERVER));
+ }
+ }
+ int ret = 0;
+ for (int i = 0; i < 5; i++) {
+ ret = exec(Main.class, SetGoalState.class.getName(), MasterGoalState.NORMAL.toString()).waitFor();
+ if (ret == 0)
+ break;
+ UtilWaitThread.sleep(1000);
+ }
+ if (ret != 0) {
+ throw new RuntimeException("Could not set master goal state, process returned " + ret + ". Check the logs in " + config.getLogDir() + " for errors.");
+ }
+ if (masterProcess == null) {
+ masterProcess = _exec(Master.class, ServerType.MASTER);
+ }
+
+ if (gcProcess == null) {
+ gcProcess = _exec(SimpleGarbageCollector.class, ServerType.GARBAGE_COLLECTOR);
+ }
+ }
+
+ private List<String> buildRemoteDebugParams(int port) {
+ return Arrays.asList(new String[] {"-Xdebug", String.format("-Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=%d", port)});
+ }
+
+ /**
+ * @return generated remote debug ports if in debug mode.
+ * @since 1.6.0
+ */
+ public Set<Pair<ServerType,Integer>> getDebugPorts() {
+ return debugPorts;
+ }
+
+ List<ProcessReference> references(Process... procs) {
+ List<ProcessReference> result = new ArrayList<ProcessReference>();
+ for (Process proc : procs) {
+ result.add(new ProcessReference(proc));
+ }
+ return result;
+ }
+
+ public Map<ServerType,Collection<ProcessReference>> getProcesses() {
+ Map<ServerType,Collection<ProcessReference>> result = new HashMap<ServerType,Collection<ProcessReference>>();
+ result.put(ServerType.MASTER, references(masterProcess));
+ result.put(ServerType.TABLET_SERVER, references(tabletServerProcesses.toArray(new Process[0])));
+ result.put(ServerType.ZOOKEEPER, references(zooKeeperProcess));
+ if (null != gcProcess) {
+ result.put(ServerType.GARBAGE_COLLECTOR, references(gcProcess));
+ }
+ return result;
+ }
+
+ public void killProcess(ServerType type, ProcessReference proc) throws ProcessNotFoundException, InterruptedException {
+ boolean found = false;
+ switch (type) {
+ case MASTER:
+ if (proc.equals(masterProcess)) {
+ masterProcess.destroy();
+ masterProcess.waitFor();
+ masterProcess = null;
+ found = true;
+ }
+ break;
+ case TABLET_SERVER:
+ synchronized (tabletServerProcesses) {
+ for (Process tserver : tabletServerProcesses) {
+ if (proc.equals(tserver)) {
+ tabletServerProcesses.remove(tserver);
+ tserver.destroy();
+ tserver.waitFor();
+ found = true;
+ break;
+ }
+ }
+ }
+ break;
+ case ZOOKEEPER:
+ if (proc.equals(zooKeeperProcess)) {
+ zooKeeperProcess.destroy();
+ zooKeeperProcess.waitFor();
+ zooKeeperProcess = null;
+ found = true;
+ }
+ break;
+ case GARBAGE_COLLECTOR:
+ if (proc.equals(gcProcess)) {
+ gcProcess.destroy();
+ gcProcess.waitFor();
+ gcProcess = null;
+ found = true;
+ }
+ break;
+ }
+ if (!found)
+ throw new ProcessNotFoundException();
+ }
+
+ /**
+ * @return Accumulo instance name
+ */
+ @Override
+ public String getInstanceName() {
+ return config.getInstanceName();
+ }
+
+ /**
+ * @return zookeeper connection string
+ */
+ @Override
+ public String getZooKeepers() {
+ return config.getZooKeepers();
+ }
+
+ /**
+ * Stops Accumulo and Zookeeper processes. If stop is not called, there is a shutdown hook that is setup to kill the processes. However its probably best to
+ * call stop in a finally block as soon as possible.
+ */
+ @Override
+ public void stop() throws IOException, InterruptedException {
+ for (LogWriter lw : logWriters) {
+ lw.flush();
+ }
+
+ if (gcProcess != null) {
- gcProcess.destroy();
- gcProcess.waitFor();
++ try {
++ stopProcessWithTimeout(gcProcess, 30, TimeUnit.SECONDS);
++ } catch (ExecutionException e) {
++ log.warn("GarbageCollector did not fully stop after 30 seconds", e);
++ } catch (TimeoutException e) {
++ log.warn("GarbageCollector did not fully stop after 30 seconds", e);
++ }
+ }
+ if (masterProcess != null) {
- masterProcess.destroy();
- masterProcess.waitFor();
++ try {
++ stopProcessWithTimeout(masterProcess, 30, TimeUnit.SECONDS);
++ } catch (ExecutionException e) {
++ log.warn("Master did not fully stop after 30 seconds", e);
++ } catch (TimeoutException e) {
++ log.warn("Master did not fully stop after 30 seconds", e);
++ }
+ }
+ if (tabletServerProcesses != null) {
+ synchronized (tabletServerProcesses) {
+ for (Process tserver : tabletServerProcesses) {
- tserver.destroy();
- tserver.waitFor();
++ try {
++ stopProcessWithTimeout(tserver, 30, TimeUnit.SECONDS);
++ } catch (ExecutionException e) {
++ log.warn("TabletServer did not fully stop after 30 seconds", e);
++ } catch (TimeoutException e) {
++ log.warn("TabletServer did not fully stop after 30 seconds", e);
++ }
+ }
+ }
+ }
+ if (zooKeeperProcess != null) {
- zooKeeperProcess.destroy();
- zooKeeperProcess.waitFor();
++ try {
++ stopProcessWithTimeout(zooKeeperProcess, 30, TimeUnit.SECONDS);
++ } catch (ExecutionException e) {
++ log.warn("ZooKeeper did not fully stop after 30 seconds", e);
++ } catch (TimeoutException e) {
++ log.warn("ZooKeeper did not fully stop after 30 seconds", e);
++ }
+ }
+
+ zooKeeperProcess = null;
+ masterProcess = null;
+ gcProcess = null;
+ tabletServerProcesses.clear();
+ if (config.useMiniDFS() && miniDFS != null)
+ miniDFS.shutdown();
+ for (Process p : cleanup) {
+ p.destroy();
+ p.waitFor();
+ }
+ miniDFS = null;
+ }
+
+ /**
+ * @since 1.6.0
+ */
+ @Override
+ public MiniAccumuloConfigImpl getConfig() {
+ return config;
+ }
+
+ /**
+ * Utility method to get a connector to the MAC.
+ *
+ * @since 1.6.0
+ */
+ @Override
+ public Connector getConnector(String user, String passwd) throws AccumuloException, AccumuloSecurityException {
+ Instance instance = new ZooKeeperInstance(getClientConfig());
+ return instance.getConnector(user, new PasswordToken(passwd));
+ }
+
+ @Override
+ public ClientConfiguration getClientConfig() {
+ return new ClientConfiguration(Arrays.asList(new MapConfiguration(config.getSiteConfig()))).withInstance(this.getInstanceName()).withZkHosts(
+ this.getZooKeepers());
+ }
+
+ public FileSystem getFileSystem() {
+ try {
+ return FileSystem.get(new URI(dfsUri), new Configuration());
+ } catch (Exception e) {
+ throw new RuntimeException(e);
+ }
+ }
++
++ private final ExecutorService executor = Executors.newSingleThreadExecutor();
++
++ private int stopProcessWithTimeout(final Process proc, long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException {
++ FutureTask<Integer> future = new FutureTask<Integer>(new Callable<Integer>() {
++ @Override
++ public Integer call() throws InterruptedException {
++ proc.destroy();
++ return proc.waitFor();
++ }
++ });
++
++ executor.execute(future);
++
++ return future.get(timeout, unit);
++ }
+}