YARN-2692 ktutil test hanging on some machines/ktutil versions (stevel)

hadoop-yarn-project/CHANGES.txt

@@ -681,6 +681,8 @@ Release 2.6.0 - UNRELEASED
     YARN-2689 TestSecureRMRegistryOperations failing on windows:
     secure ZK won't start (stevel)
 
+    YARN-2692 ktutil test hanging on some machines/ktutil versions (stevel)
+
     ---
 
     YARN-2598 GHS should show N/A instead of null for the inaccessible information

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/RegistryTestHelper.java

@@ -325,48 +325,6 @@ public class RegistryTestHelper extends Assert {
     return null;
   }
 
-  /**
-   * Exec the native <code>ktutil</code> to list the keys
-   * (primarily to verify that the generated keytabs are compatible).
-   * This operation is not executed on windows. On other platforms
-   * it requires <code>ktutil</code> to be installed and on the path
-   * <pre>
-   *   ktutil --keytab=target/kdc/zookeeper.keytab list --keys
-   * </pre>
-   * @param keytab keytab to list
-   * @throws IOException on any execution problem, including the executable
-   * being missing
-   */
-  public static String ktList(File keytab) throws IOException {
-    if (!Shell.WINDOWS) {
-      String path = keytab.getAbsolutePath();
-      String out = Shell.execCommand(
-          KTUTIL,
-          "--keytab=" + path,
-          "list",
-          "--keys"
-      );
-      LOG.info("Listing of keytab {}:\n{}\n", path, out);
-      return out;
-    }
-    return "";
-  }
-
-  /**
-   * Perform a robust <code>ktutils -l</code> ... catches and ignores
-   * exceptions, otherwise the output is logged.
-   * @param keytab keytab to list
-   * @return the result of the operation, or "" on any problem
-   */
-  public static String ktListRobust(File keytab) {
-    try {
-      return ktList(keytab);
-    } catch (IOException e) {
-      // probably not on the path
-      return "";
-    }
-  }
-
   /**
    * Login via a UGI. Requres UGI to have been set up
    * @param user username

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-registry/src/test/java/org/apache/hadoop/registry/secure/TestSecureLogins.java

@@ -56,19 +56,6 @@ public class TestSecureLogins extends AbstractSecureRegistryTest {
   private static final Logger LOG =
       LoggerFactory.getLogger(TestSecureLogins.class);
 
-  @Test
-  public void testZKinKeytab() throws Throwable {
-    Assume.assumeTrue(!Shell.WINDOWS);
-    try {
-      String listing = ktList(keytab_zk);
-      assertTrue("no " + ZOOKEEPER_LOCALHOST + " in " + listing,
-          listing.contains(ZOOKEEPER_LOCALHOST));
-    } catch (IOException e) {
-      LOG.debug(KTUTIL + " failure: {}", e, e);
-      Assume.assumeTrue("Failed to run "+ KTUTIL+": " + e, false );
-    }
-  }
-
   @Test
   public void testHasRealm() throws Throwable {
     assertNotNull(getRealm());