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From vino...@apache.org
Subject svn commit: r1519117 - in /hadoop/common/trunk/hadoop-yarn-project: ./ hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/ hadoop-yarn/hado...
Date Fri, 30 Aug 2013 23:26:01 GMT
Author: vinodkv
Date: Fri Aug 30 23:26:01 2013
New Revision: 1519117

URL: http://svn.apache.org/r1519117
Log:
YARN-1117. Improved help messages for "yarn application" and "yarn node" commands. Contributed
by Xuan Gong.

Modified:
    hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
    hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java
    hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/NodeCLI.java
    hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java
    hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
    hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ConverterUtils.java

Modified: hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt?rev=1519117&r1=1519116&r2=1519117&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt (original)
+++ hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt Fri Aug 30 23:26:01 2013
@@ -72,6 +72,9 @@ Release 2.1.1-beta - UNRELEASED
     YARN-771. AMRMClient support for resource blacklisting (Junping Du via
     bikas)
 
+    YARN-1117. Improved help messages for "yarn application" and "yarn node"
+    commands. (Xuan Gong via vinodkv)
+
   OPTIMIZATIONS
 
   BUG FIXES

Modified: hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java?rev=1519117&r1=1519116&r2=1519117&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java
(original)
+++ hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/ApplicationCLI.java
Fri Aug 30 23:26:01 2013
@@ -29,6 +29,7 @@ import java.util.Set;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.GnuParser;
 import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.MissingArgumentException;
 import org.apache.commons.cli.Option;
 import org.apache.commons.cli.Options;
 import org.apache.hadoop.classification.InterfaceAudience.Private;
@@ -70,32 +71,38 @@ public class ApplicationCLI extends Yarn
     Options opts = new Options();
     opts.addOption(STATUS_CMD, true, "Prints the status of the application.");
     opts.addOption(LIST_CMD, false, "List applications from the RM. " +
-        "Supports optional use of --appTypes to filter applications " +
+        "Supports optional use of -appTypes to filter applications " +
         "based on application type, " +
-        "and --appStates to filter applications based on application state");
+        "and -appStates to filter applications based on application state");
     opts.addOption(KILL_CMD, true, "Kills the application.");
     opts.addOption(HELP_CMD, false, "Displays help for all commands.");
-    Option appTypeOpt = new Option(APP_TYPE_CMD, true,
-        "Works with --list to filter applications based on their type.");
+    Option appTypeOpt = new Option(APP_TYPE_CMD, true, "Works with -list to " +
+        "filter applications based on " +
+        "input comma-separated list of application types.");
     appTypeOpt.setValueSeparator(',');
     appTypeOpt.setArgs(Option.UNLIMITED_VALUES);
-    appTypeOpt.setArgName("Comma-separated list of application types");
+    appTypeOpt.setArgName("Types");
     opts.addOption(appTypeOpt);
-    Option appStateOpt =
-        new Option(
-            APP_STATE_CMD,
-            true,
-            "Works with --list to filter applications based on their state. "
-                + getAllValidApplicationStates());
+    Option appStateOpt = new Option(APP_STATE_CMD, true, "Works with -list " +
+        "to filter applications based on input comma-separated list of " +
+        "application states. " + getAllValidApplicationStates());
     appStateOpt.setValueSeparator(',');
     appStateOpt.setArgs(Option.UNLIMITED_VALUES);
-    appStateOpt.setArgName("Comma-separated list of application states");
+    appStateOpt.setArgName("States");
     opts.addOption(appStateOpt);
     opts.getOption(KILL_CMD).setArgName("Application ID");
     opts.getOption(STATUS_CMD).setArgName("Application ID");
-    CommandLine cliParser = new GnuParser().parse(opts, args);
 
     int exitCode = -1;
+    CommandLine cliParser = null;
+    try {
+      cliParser = new GnuParser().parse(opts, args);
+    } catch (MissingArgumentException ex) {
+      sysout.println("Missing argument for options");
+      printUsage(opts);
+      return exitCode;
+    }
+
     if (cliParser.hasOption(STATUS_CMD)) {
       if (args.length != 2) {
         printUsage(opts);

Modified: hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/NodeCLI.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/NodeCLI.java?rev=1519117&r1=1519116&r2=1519117&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/NodeCLI.java
(original)
+++ hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/main/java/org/apache/hadoop/yarn/client/cli/NodeCLI.java
Fri Aug 30 23:26:01 2013
@@ -28,6 +28,7 @@ import java.util.Set;
 import org.apache.commons.cli.CommandLine;
 import org.apache.commons.cli.GnuParser;
 import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.MissingArgumentException;
 import org.apache.commons.cli.Option;
 import org.apache.commons.cli.Options;
 import org.apache.commons.lang.time.DateFormatUtils;
@@ -64,20 +65,29 @@ public class NodeCLI extends YarnCLI {
     Options opts = new Options();
     opts.addOption(STATUS_CMD, true, "Prints the status report of the node.");
     opts.addOption(LIST_CMD, false, "List all running nodes. " +
-        "Supports optional use of --states to filter nodes " +
-        "based on node state, all --all to list all nodes.");
+        "Supports optional use of -states to filter nodes " +
+        "based on node state, all -all to list all nodes.");
     Option nodeStateOpt = new Option(NODE_STATE_CMD, true,
-        "Works with -list to filter nodes based on their states.");
+        "Works with -list to filter nodes based on input comma-separated list of node states.");
     nodeStateOpt.setValueSeparator(',');
     nodeStateOpt.setArgs(Option.UNLIMITED_VALUES);
-    nodeStateOpt.setArgName("Comma-separated list of node states");
+    nodeStateOpt.setArgName("States");
     opts.addOption(nodeStateOpt);
     Option allOpt = new Option(NODE_ALL, false,
         "Works with -list to list all nodes.");
     opts.addOption(allOpt);
-    CommandLine cliParser = new GnuParser().parse(opts, args);
+    opts.getOption(STATUS_CMD).setArgName("NodeId");
 
     int exitCode = -1;
+    CommandLine cliParser = null;
+    try {
+      cliParser = new GnuParser().parse(opts, args);
+    } catch (MissingArgumentException ex) {
+      sysout.println("Missing argument for options");
+      printUsage(opts);
+      return exitCode;
+    }
+
     if (cliParser.hasOption("status")) {
       if (args.length != 2) {
         printUsage(opts);

Modified: hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java?rev=1519117&r1=1519116&r2=1519117&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java
(original)
+++ hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/api/impl/TestYarnClient.java
Fri Aug 30 23:26:01 2013
@@ -86,6 +86,7 @@ public class TestYarnClient {
     client.init(conf);
     client.start();
     client.stop();
+    rm.stop();
   }
 
   @Test (timeout = 30000)

Modified: hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java?rev=1519117&r1=1519116&r2=1519117&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
(original)
+++ hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/cli/TestYarnCLI.java
Fri Aug 30 23:26:01 2013
@@ -29,6 +29,7 @@ import static org.mockito.Mockito.when;
 import static org.mockito.Mockito.doThrow;
 
 import java.io.ByteArrayOutputStream;
+import java.io.IOException;
 import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.util.ArrayList;
@@ -72,6 +73,7 @@ public class TestYarnCLI {
     sysOut = spy(new PrintStream(sysOutStream));
     sysErrStream = new ByteArrayOutputStream();
     sysErr = spy(new PrintStream(sysErrStream));
+    System.setOut(sysOut);
   }
   
   @Test
@@ -456,21 +458,40 @@ public class TestYarnCLI {
   }
 
   @Test (timeout = 10000)
-  public void testHelpCommand() throws Exception {
+  public void testAppsHelpCommand() throws Exception {
     ApplicationCLI cli = createAndGetAppCLI();
     ApplicationCLI spyCli = spy(cli);
     int result = spyCli.run(new String[] { "-help" });
     Assert.assertTrue(result == 0);
     verify(spyCli).printUsage(any(Options.class));
+    Assert.assertEquals(createApplicationCLIHelpMessage(),
+        sysOutStream.toString());
 
+    sysOutStream.reset();
     ApplicationId applicationId = ApplicationId.newInstance(1234, 5);
     result =
         cli.run(new String[] { "-kill", applicationId.toString(), "args" });
     verify(spyCli).printUsage(any(Options.class));
+    Assert.assertEquals(createApplicationCLIHelpMessage(),
+        sysOutStream.toString());
 
+    sysOutStream.reset();
     NodeId nodeId = NodeId.newInstance("host0", 0);
     result = cli.run(new String[] { "-status", nodeId.toString(), "args" });
     verify(spyCli).printUsage(any(Options.class));
+    Assert.assertEquals(createApplicationCLIHelpMessage(),
+        sysOutStream.toString());
+  }
+
+  @Test (timeout = 5000)
+  public void testNodesHelpCommand() throws Exception {
+    NodeCLI nodeCLI = new NodeCLI();
+    nodeCLI.setClient(client);
+    nodeCLI.setSysOutPrintStream(sysOut);
+    nodeCLI.setSysErrPrintStream(sysErr);
+    nodeCLI.run(new String[] {});
+    Assert.assertEquals(createNodeCLIHelpMessage(),
+        sysOutStream.toString());
   }
 
   @Test
@@ -806,6 +827,25 @@ public class TestYarnCLI {
     verifyUsageInfo(new NodeCLI());
   }
 
+  @Test
+  public void testMissingArguments() throws Exception {
+    ApplicationCLI cli = createAndGetAppCLI();
+    int result = cli.run(new String[] { "-status" });
+    Assert.assertEquals(result, -1);
+    Assert.assertEquals("Missing argument for options\n"
+        + createApplicationCLIHelpMessage(), sysOutStream.toString());
+
+    sysOutStream.reset();
+    NodeCLI nodeCLI = new NodeCLI();
+    nodeCLI.setClient(client);
+    nodeCLI.setSysOutPrintStream(sysOut);
+    nodeCLI.setSysErrPrintStream(sysErr);
+    result = nodeCLI.run(new String[] { "-status" });
+    Assert.assertEquals(result, -1);
+    Assert.assertEquals("Missing argument for options\n"
+        + createNodeCLIHelpMessage(), sysOutStream.toString());
+  }
+
   private void verifyUsageInfo(YarnCLI cli) throws Exception {
     cli.setSysErrPrintStream(sysErr);
     cli.run(new String[0]);
@@ -832,4 +872,45 @@ public class TestYarnCLI {
     return cli;
   }
 
+  private String createApplicationCLIHelpMessage() throws IOException {
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    PrintWriter pw = new PrintWriter(baos);
+    pw.println("usage: application");
+    pw.println(" -appStates <States>        Works with -list to filter applications
based");
+    pw.println("                            on input comma-separated list of application");
+    pw.println("                            states. The valid application state can be one");
+    pw.println("                            of the following:");
+    pw.println("                            ALL,NEW,NEW_SAVING,SUBMITTED,ACCEPTED,RUNNING,");
+    pw.println("                            FINISHED,FAILED,KILLED");
+    pw.println(" -appTypes <Types>          Works with -list to filter applications
based");
+    pw.println("                            on input comma-separated list of application");
+    pw.println("                            types.");
+    pw.println(" -help                      Displays help for all commands.");
+    pw.println(" -kill <Application ID>     Kills the application.");
+    pw.println(" -list                      List applications from the RM. Supports");
+    pw.println("                            optional use of -appTypes to filter");
+    pw.println("                            applications based on application type, and");
+    pw.println("                            -appStates to filter applications based on");
+    pw.println("                            application state");
+    pw.println(" -status <Application ID>   Prints the status of the application.");
+    pw.close();
+    String appsHelpStr = baos.toString("UTF-8");
+    return appsHelpStr;
+  }
+
+  private String createNodeCLIHelpMessage() throws IOException {
+    ByteArrayOutputStream baos = new ByteArrayOutputStream();
+    PrintWriter pw = new PrintWriter(baos);
+    pw.println("usage: node");
+    pw.println(" -all               Works with -list to list all nodes.");
+    pw.println(" -list              List all running nodes. Supports optional use of");
+    pw.println("                    -states to filter nodes based on node state, all -all");
+    pw.println("                    to list all nodes.");
+    pw.println(" -states <States>   Works with -list to filter nodes based on input");
+    pw.println("                    comma-separated list of node states.");
+    pw.println(" -status <NodeId>   Prints the status report of the node.");
+    pw.close();
+    String nodesHelpStr = baos.toString("UTF-8");
+    return nodesHelpStr;
+  }
 }

Modified: hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ConverterUtils.java
URL: http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ConverterUtils.java?rev=1519117&r1=1519116&r2=1519117&view=diff
==============================================================================
--- hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ConverterUtils.java
(original)
+++ hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/util/ConverterUtils.java
Fri Aug 30 23:26:01 2013
@@ -198,7 +198,8 @@ public class ConverterUtils {
     Iterator<String> it = _split(appIdStr).iterator();
     if (!it.next().equals(APPLICATION_PREFIX)) {
       throw new IllegalArgumentException("Invalid ApplicationId prefix: "
-          + appIdStr);
+          + appIdStr + ". The valid ApplicationId should start with prefix "
+          + APPLICATION_PREFIX);
     }
     try {
       return toApplicationId(it);



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