示例#1
0
 public static boolean unregisterJar(String jarsToUnregister) {
   LogHelper console = getConsole();
   try {
     Utilities.removeFromClassPath(StringUtils.split(jarsToUnregister, ","));
     console.printInfo("Deleted " + jarsToUnregister + " from class path");
     return true;
   } catch (Exception e) {
     console.printError(
         "Unable to unregister " + jarsToUnregister + "\nException: " + e.getMessage(),
         "\n" + org.apache.hadoop.util.StringUtils.stringifyException(e));
     return false;
   }
 }
示例#2
0
  // reloading the jars under the path specified in hive.reloadable.aux.jars.path property
  public void reloadAuxJars() throws IOException {
    final Set<String> reloadedAuxJars = new HashSet<String>();

    final String renewableJarPath = conf.getVar(ConfVars.HIVERELOADABLEJARS);
    // do nothing if this property is not specified or empty
    if (renewableJarPath == null || renewableJarPath.isEmpty()) {
      return;
    }

    Set<String> jarPaths = Utilities.getJarFilesByPath(renewableJarPath);

    // load jars under the hive.reloadable.aux.jars.path
    if (!jarPaths.isEmpty()) {
      reloadedAuxJars.addAll(jarPaths);
    }

    // remove the previous renewable jars
    try {
      if (preReloadableAuxJars != null && !preReloadableAuxJars.isEmpty()) {
        Utilities.removeFromClassPath(preReloadableAuxJars.toArray(new String[0]));
      }
    } catch (Exception e) {
      String msg = "Fail to remove the reloaded jars loaded last time: " + e;
      throw new IOException(msg, e);
    }

    try {
      if (reloadedAuxJars != null && !reloadedAuxJars.isEmpty()) {
        URLClassLoader currentCLoader =
            (URLClassLoader) SessionState.get().getConf().getClassLoader();
        currentCLoader =
            (URLClassLoader)
                Utilities.addToClassPath(currentCLoader, reloadedAuxJars.toArray(new String[0]));
        conf.setClassLoader(currentCLoader);
        Thread.currentThread().setContextClassLoader(currentCLoader);
      }
      preReloadableAuxJars.clear();
      preReloadableAuxJars.addAll(reloadedAuxJars);
    } catch (Exception e) {
      String msg =
          "Fail to add jars from the path specified in hive.reloadable.aux.jars.path property: "
              + e;
      throw new IOException(msg, e);
    }
  }