YARN-7891. LogAggregationIndexedFileController should support read from HAR file. (Xuan Gong via wangda)

Change-Id: I16e081f21c5f80160564c49cc49d103bd8eb7e16

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/pom.xml

@@ -249,6 +249,10 @@
             <exclude>src/test/resources/application_1440536969523_0001.har/part-0</exclude>
             <exclude>src/test/resources/application_1440536969523_0001.har/_masterindex</exclude>
             <exclude>src/test/resources/application_1440536969523_0001.har/_SUCCESS</exclude>
+            <exclude>src/test/resources/application_123456_0001.har/_index</exclude>
+            <exclude>src/test/resources/application_123456_0001.har/part-0</exclude>
+            <exclude>src/test/resources/application_123456_0001.har/_masterindex</exclude>
+            <exclude>src/test/resources/application_123456_0001.har/_SUCCESS</exclude>
           </excludes>
         </configuration>
       </plugin>

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/LogAggregationIndexedFileController.java

@@ -495,16 +495,21 @@ public boolean readAggregatedLogs(ContainerLogsRequest logRequest,
     boolean getAllContainers = (containerIdStr == null
         || containerIdStr.isEmpty());
     long size = logRequest.getBytes();
-    List<FileStatus> nodeFiles = LogAggregationUtils
+    RemoteIterator<FileStatus> nodeFiles = LogAggregationUtils
-        .getRemoteNodeFileList(conf, appId, logRequest.getAppOwner(),
+        .getRemoteNodeFileDir(conf, appId, logRequest.getAppOwner(),
         this.remoteRootLogDir, this.remoteRootLogDirSuffix);
-    if (nodeFiles.isEmpty()) {
+    if (!nodeFiles.hasNext()) {
       throw new IOException("There is no available log fils for "
           + "application:" + appId);
     }
-    Map<String, Long> checkSumFiles = parseCheckSumFiles(nodeFiles);
+    List<FileStatus> allFiles = getAllNodeFiles(nodeFiles, appId);
+    if (allFiles.isEmpty()) {
+      throw new IOException("There is no available log fils for "
+          + "application:" + appId);
+    }
+    Map<String, Long> checkSumFiles = parseCheckSumFiles(allFiles);
     List<FileStatus> fileToRead = getNodeLogFileToRead(
-        nodeFiles, nodeIdStr, appId);
+        allFiles, nodeIdStr, appId);
     byte[] buf = new byte[65535];
     for (FileStatus thisNodeFile : fileToRead) {
       String nodeName = thisNodeFile.getPath().getName();
@@ -609,16 +614,21 @@ public List<ContainerLogMeta> readAggregatedLogsMeta(
         containerIdStr.isEmpty());
     String nodeIdStr = (nodeId == null || nodeId.isEmpty()) ? null
         : LogAggregationUtils.getNodeString(nodeId);
-    List<FileStatus> nodeFiles = LogAggregationUtils
+    RemoteIterator<FileStatus> nodeFiles = LogAggregationUtils
-        .getRemoteNodeFileList(conf, appId, appOwner, this.remoteRootLogDir,
+        .getRemoteNodeFileDir(conf, appId, appOwner, this.remoteRootLogDir,
         this.remoteRootLogDirSuffix);
-    if (nodeFiles.isEmpty()) {
+    if (!nodeFiles.hasNext()) {
       throw new IOException("There is no available log fils for "
           + "application:" + appId);
     }
-    Map<String, Long> checkSumFiles = parseCheckSumFiles(nodeFiles);
+    List<FileStatus> allFiles = getAllNodeFiles(nodeFiles, appId);
+    if (allFiles.isEmpty()) {
+      throw new IOException("There is no available log fils for "
+          + "application:" + appId);
+    }
+    Map<String, Long> checkSumFiles = parseCheckSumFiles(allFiles);
     List<FileStatus> fileToRead = getNodeLogFileToRead(
-        nodeFiles, nodeIdStr, appId);
+        allFiles, nodeIdStr, appId);
     for(FileStatus thisNodeFile : fileToRead) {
       try {
         Long checkSumIndex = checkSumFiles.get(
@@ -727,25 +737,37 @@ public List<FileStatus> getNodeLogFileToRead(
       List<FileStatus> nodeFiles, String nodeId, ApplicationId appId)
       throws IOException {
     List<FileStatus> listOfFiles = new ArrayList<>();
-    List<FileStatus> files = new ArrayList<>(nodeFiles);
+    for (FileStatus thisNodeFile : nodeFiles) {
-    for (FileStatus file : files) {
+      String nodeName = thisNodeFile.getPath().getName();
-      String nodeName = file.getPath().getName();
       if ((nodeId == null || nodeId.isEmpty()
           || nodeName.contains(LogAggregationUtils
           .getNodeString(nodeId))) && !nodeName.endsWith(
               LogAggregationUtils.TMP_FILE_SUFFIX) &&
           !nodeName.endsWith(CHECK_SUM_FILE_SUFFIX)) {
-        if (nodeName.equals(appId + ".har")) {
+        listOfFiles.add(thisNodeFile);
-          Path p = new Path("har:///" + file.getPath().toUri().getRawPath());
-          files = Arrays.asList(HarFs.get(p.toUri(), conf).listStatus(p));
-          continue;
-        }
-        listOfFiles.add(file);
       }
     }
     return listOfFiles;
   }
 
+  private List<FileStatus> getAllNodeFiles(
+      RemoteIterator<FileStatus> nodeFiles, ApplicationId appId)
+      throws IOException {
+    List<FileStatus> listOfFiles = new ArrayList<>();
+    while (nodeFiles != null && nodeFiles.hasNext()) {
+      FileStatus thisNodeFile = nodeFiles.next();
+      String nodeName = thisNodeFile.getPath().getName();
+      if (nodeName.equals(appId + ".har")) {
+        Path p = new Path("har:///"
+            + thisNodeFile.getPath().toUri().getRawPath());
+        nodeFiles = HarFs.get(p.toUri(), conf).listStatusIterator(p);
+        continue;
+      }
+      listOfFiles.add(thisNodeFile);
+    }
+    return listOfFiles;
+  }
+
   @Private
   public FileStatus getAllChecksumFiles(Map<String, FileStatus> fileMap,
       String fileName) {

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/logaggregation/filecontroller/ifile/TestLogAggregationIndexFileController.java

@@ -19,6 +19,7 @@
 package org.apache.hadoop.yarn.logaggregation.filecontroller.ifile;
 
 import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertNotNull;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 import java.io.ByteArrayOutputStream;
@@ -27,6 +28,7 @@
 import java.io.IOException;
 import java.io.PrintStream;
 import java.io.Writer;
+import java.net.URL;
 import java.nio.charset.Charset;
 import java.util.ArrayList;
 import java.util.HashMap;
@@ -364,6 +366,58 @@ public boolean isRollover(final FileContext fc,
     sysOutStream.reset();
   }
 
+  @Test(timeout = 15000)
+  public void testFetchApplictionLogsHar() throws Exception {
+    List<String> newLogTypes = new ArrayList<>();
+    newLogTypes.add("syslog");
+    newLogTypes.add("stdout");
+    newLogTypes.add("stderr");
+    newLogTypes.add("test1");
+    newLogTypes.add("test2");
+    URL harUrl = ClassLoader.getSystemClassLoader()
+        .getResource("application_123456_0001.har");
+    assertNotNull(harUrl);
+
+    Path path = new Path(remoteLogDir + "/" + USER_UGI.getShortUserName()
+        + "/logs/application_123456_0001");
+    if (fs.exists(path)) {
+      fs.delete(path, true);
+    }
+    assertTrue(fs.mkdirs(path));
+    Path harPath = new Path(path, "application_123456_0001.har");
+    fs.copyFromLocalFile(false, new Path(harUrl.toURI()), harPath);
+    assertTrue(fs.exists(harPath));
+    LogAggregationIndexedFileController fileFormat
+        = new LogAggregationIndexedFileController();
+    fileFormat.initialize(conf, "Indexed");
+    ContainerLogsRequest logRequest = new ContainerLogsRequest();
+    logRequest.setAppId(appId);
+    logRequest.setNodeId(nodeId.toString());
+    logRequest.setAppOwner(USER_UGI.getShortUserName());
+    logRequest.setContainerId(containerId.toString());
+    logRequest.setBytes(Long.MAX_VALUE);
+    List<ContainerLogMeta> meta = fileFormat.readAggregatedLogsMeta(
+        logRequest);
+    Assert.assertEquals(meta.size(), 3);
+    List<String> fileNames = new ArrayList<>();
+    for (ContainerLogMeta log : meta) {
+      Assert.assertTrue(log.getContainerId().equals(containerId.toString()));
+      Assert.assertTrue(log.getNodeId().equals(nodeId.toString()));
+      for (ContainerLogFileInfo file : log.getContainerLogMeta()) {
+        fileNames.add(file.getFileName());
+      }
+    }
+    fileNames.removeAll(newLogTypes);
+    Assert.assertTrue(fileNames.isEmpty());
+    boolean foundLogs = fileFormat.readAggregatedLogs(logRequest, System.out);
+    Assert.assertTrue(foundLogs);
+    for (String logType : newLogTypes) {
+      Assert.assertTrue(sysOutStream.toString().contains(logMessage(
+          containerId, logType)));
+    }
+    sysOutStream.reset();
+  }
+
   private File createAndWriteLocalLogFile(ContainerId containerId,
       Path localLogDir, String logType) throws IOException {
     File file = new File(localLogDir.toString(), logType);

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/resources/application_123456_0001.har/_index

@@ -0,0 +1,3 @@
+%2F dir 1517728311922+493+xuan+supergroup 0 0 localhost_9999_1517727665265 localhost_9999_1517727668513 
+%2Flocalhost_9999_1517727665265 file part-0 0 2895 1517728301581+420+xuan+supergroup 
+%2Flocalhost_9999_1517727668513 file part-0 2895 1228 1517728311919+420+xuan+supergroup 

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/resources/application_123456_0001.har/_masterindex

@@ -0,0 +1,2 @@
+3 
+0 1897968749 0 280