Esempio n. 1
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  /**
   * Waits for a List of threads concurrently stopping and starting Vms to finish, as returned by
   * {@link #stopStartAsync(List,List)}. Resets the niceKill blackboard entry for each vm is set to
   * false.
   *
   * @param targetVmList A list of hydra.ClientVmInfos to stop then restart.
   * @param threadList A parallel list of threads on whom to wait.
   */
  public static void joinStopStart(List targetVmList, List threadList) {
    Log.getLogWriter().info("Joining stop/start threads...");
    // wait for all threads to complete the stop and start
    for (int i = 0; i < threadList.size(); i++) {
      HydraSubthread aThread = (HydraSubthread) (threadList.get(i));
      try {
        aThread.join();
      } catch (InterruptedException e) {
        throw new TestException(TestHelper.getStackTrace(e));
      }
      Object err = StopStartBB.getBB().getSharedMap().get(StopStartBB.errKey);
      if (err != null) {
        throw new TestException(err.toString());
      }
    }

    // reset the blackboard entries
    for (int i = 0; i < targetVmList.size(); i++) {
      ClientVmInfo targetVm = (ClientVmInfo) (targetVmList.get(i));
      StopStartBB.getBB()
          .getSharedMap()
          .put(StopStartVMs.NiceKillInProgress + targetVm.getVmid(), new Boolean(false));
    }
    Log.getLogWriter().info("Done joining stop/start threads...");
  }
Esempio n. 2
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 /**
  * Run method for this thread: if this thread is set to stop, then stop a VM and wait for it to
  * stop. If this thread is set to start then start a VM and wait for it to start. Any errors are
  * placed in the blackboard errStr.
  */
 public void run() {
   try {
     Log.getLogWriter().info("Started " + getName());
     try {
       if (stop) {
         ClientVmMgr.stop(
             "Test is synchronously stopping "
                 + targetVm
                 + " with "
                 + ClientVmMgr.toStopModeString(stopMode),
             stopMode,
             ClientVmMgr.ON_DEMAND,
             targetVm);
       }
       VMotionUtil.doVMotion(targetVm);
       if (start) {
         ClientVmMgr.start("Test is synchronously starting " + targetVm, targetVm);
       }
     } catch (hydra.ClientVmNotFoundException e) {
       Log.getLogWriter()
           .info("Caught in thread " + getName() + ":" + TestHelper.getStackTrace(e));
       StopStartBB.getBB().getSharedMap().put(StopStartBB.errKey, TestHelper.getStackTrace(e));
     }
   } catch (Throwable e) {
     Log.getLogWriter().info("Caught in thread " + getName() + ":" + TestHelper.getStackTrace(e));
     StopStartBB.getBB().getSharedMap().put(StopStartBB.errKey, TestHelper.getStackTrace(e));
   }
   Log.getLogWriter().info(getName() + " terminating");
 }
Esempio n. 3
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 /**
  * Get the client name for the given vmID, by looking in the StopStartBB blackboard shared map.
  * The map must have been created by calling StopStart_initTask. If this method was never invoked,
  * then null is returned as the clientName cannot be deteremined.
  *
  * @param vmID The vmID to get the client name for.
  * @returns The client name for vmID, or null if it cannot be determined.
  */
 public static String getClientName(Integer vmID) {
   Iterator it = StopStartBB.getBB().getSharedMap().getMap().values().iterator();
   while (it.hasNext()) {
     Object anObj = it.next();
     if (anObj instanceof ClientVmInfo) {
       ClientVmInfo info = (ClientVmInfo) (anObj);
       if (info.getVmid().equals(vmID)) { // its a match
         return info.getClientName();
       }
     }
   }
   return null;
 }
Esempio n. 4
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 /** Return a List of all ClientVmInfo instances in the StopStartVMs blackboard. */
 public static List getAllVMs() {
   List aList = new ArrayList();
   Map aMap = StopStartBB.getBB().getSharedMap().getMap();
   Iterator it = aMap.keySet().iterator();
   while (it.hasNext()) {
     Object key = it.next();
     Object value = aMap.get(key);
     if (value instanceof ClientVmInfo) {
       aList.add(value);
     }
   }
   return aList;
 }
Esempio n. 5
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  /**
   * Concurrently stops a List of Vms, then restart them. Does not wait for the restart to complete
   * before returning. This allows the caller to carry out operations concurrent with the stop and
   * start activity, then wait for the restart to complete using {@link
   * #joinStopStartThreads(List,List)}.
   *
   * <p>Side effects: For any VM which is performing a NICE_KILL because of this call, it is marked
   * as such in the StopStartBB (blackboard). The blackboard will contain a key prefixed with
   * util.StopStartVMs.NiceKillInProgress and appended to with its VmId. The value of this key is
   * the true.
   *
   * <p>This blackboard entry is for the convenience of the caller, and it is up to the caller to
   * look for it or not. When a VM undergoes a NICE_KILL, the VM closes the cache and disconnects
   * from the distributed system. Any threads in that VM doing work can get exceptions during the
   * close and/or disconnect step. This blackboard entry is useful for those threads to allow
   * exceptions when they know an exception is possible.
   *
   * @param targetVmList A list of hydra.ClientVmInfos to stop then restart.
   * @param stopModeList A parallel list of stop modes (Strings).
   * @return threadList The threads created to stop the VMs.
   */
  public static List stopStartAsync(List targetVmList, List stopModeList) {
    if (targetVmList.size() != stopModeList.size()) {
      throw new TestException(
          "Expected targetVmList "
              + targetVmList
              + " and stopModeList "
              + stopModeList
              + " to be parallel lists of the same size, but they have different sizes");
    }
    Log.getLogWriter()
        .info(
            "In stopStartVMs, vms to stop: "
                + targetVmList
                + ", corresponding stop modes: "
                + stopModeList);

    // mark in the blackboard any vms that will undergo a NICE_KILL
    for (int i = 0; i < stopModeList.size(); i++) {
      String stopMode = (String) (stopModeList.get(i));
      if (ClientVmMgr.toStopMode(stopMode) == ClientVmMgr.NICE_KILL) {
        // write nice kills to the blackboard so the killed vm may, if it chooses, handle any
        // exceptions that are underway.
        StopStartBB.getBB()
            .getSharedMap()
            .put(
                NiceKillInProgress + ((ClientVmInfo) targetVmList.get(i)).getVmid(),
                new Boolean(true));
      }
    }

    // stop all vms in targetVms list
    List threadList = new ArrayList();
    for (int i = 0; i < targetVmList.size(); i++) {
      ClientVmInfo targetVm = (ClientVmInfo) (targetVmList.get(i));
      int stopMode = ClientVmMgr.toStopMode((String) (stopModeList.get(i)));
      Thread aThread = new StopStartVMs(targetVm, stopMode);
      aThread = new HydraSubthread(aThread);
      threadList.add(aThread);
      aThread.start();
    }
    return threadList;
  }
Esempio n. 6
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 /**
  * Return a List of all other vms except for one along with a parallel stop mode list, and also
  * return the one vm not in the list.
  *
  * @return [0] (List<ClientVmInfo>)A List of ClientVmInfo instances; this includes all vms except
  *     the current vm and except for one other vm. [1] (List<String>) A parallel List to [0]
  *     containing stop modes. [2] (ClientVMInfo) The ClientVmInfo instance of the one vm excluded
  *     from [0] (other than this vm) [3] (String) The stop mode for [2] [4] (List<ClientVmInfo>) A
  *     List of ClientVmInfo instances for all vms except this one. [5] (List<String>) A parallel
  *     List to [4] of stop modes.
  */
 public static Object[] getOtherVMsDivided(String[] excludedClientNames) {
   Vector<Integer> otherVmIDs = ClientVmMgr.getOtherClientVmids();
   List<ClientVmInfo> allOtherVMs = new ArrayList();
   List<String> stopModeList = new ArrayList();
   for (int i = 0; i < otherVmIDs.size(); i++) {
     ClientVmInfo info = new ClientVmInfo(otherVmIDs.get(i));
     ClientVmInfo infoFromBB =
         (ClientVmInfo) StopStartBB.getBB().getSharedMap().get(VmInfoKey + otherVmIDs.get(i));
     if (infoFromBB != null) {
       info = infoFromBB;
     }
     String clientName = info.getClientName();
     if (clientName == null) {
       allOtherVMs.add(info);
       stopModeList.add(TestConfig.tab().stringAt(StopStartPrms.stopModes));
     } else {
       boolean inExcludedNames = false;
       for (String excludeName : excludedClientNames) {
         if (clientName.indexOf(excludeName) >= 0) inExcludedNames = true;
         break;
       }
       if (!inExcludedNames) {
         allOtherVMs.add(info);
         stopModeList.add(TestConfig.tab().stringAt(StopStartPrms.stopModes));
       }
     }
   }
   List<ClientVmInfo> allOtherVMsExceptOne = allOtherVMs.subList(0, allOtherVMs.size() - 1);
   List<String> stopModesExceptOne = stopModeList.subList(0, stopModeList.size() - 1);
   ClientVmInfo remainingVM = allOtherVMs.get(allOtherVMs.size() - 1);
   String remainingStopMode = stopModeList.get(stopModeList.size() - 1);
   return new Object[] {
     allOtherVMsExceptOne,
     stopModesExceptOne,
     remainingVM,
     remainingStopMode,
     allOtherVMs,
     stopModeList
   };
 }
Esempio n. 7
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  /**
   * Invokes AdminDistributedSystem.shutDownAllMembers() which disconnects all members but leaves
   * the vms up (because hydra threads remain) including the possibility of this vm being
   * disconnected, then this actually stops those vms (except this vm if it was targeted in the
   * shutDownAllMembers...this vm will remain up but disconnect). Stopped vms are stopped with
   * ON_DEMAND restart. This returns when the vms disconnected by shutDownAllMembers() (other than
   * this one) are all stopped .
   *
   * @param adminDS The admin distributed system instance to use to call shutdownAllMembers.
   * @param stopModes The stop modes to choose from.
   * @return An Array [0] List of {@link ClientVmInfo} instances describing the VMs that were
   *     stopped. [1] Set, the return from shutdownAllMembers()
   * @throws AdminException if the shutDownAllMembers call throws this exception.
   */
  public static Object[] shutDownAllMembers(
      AdminDistributedSystem adminDS, List<String> stopModes) {
    if (adminDS == null) {
      throw new HydraRuntimeException("AdminDistributedSystem cannot be null");
    }

    // Invoke shutDownAllMembers
    Log.getLogWriter().info("AdminDS " + adminDS + " is shutting down all members...");
    Set<DistributedMember> memberSet;
    try {
      long startTime = System.currentTimeMillis();
      memberSet = adminDS.shutDownAllMembers();
      long duration = System.currentTimeMillis() - startTime;
      Log.getLogWriter()
          .info(
              "AdminDS "
                  + adminDS
                  + " shut down (disconnected) the following members "
                  + "(vms remain up): "
                  + memberSet
                  + "; shutDownAll duration "
                  + duration
                  + "ms");
    } catch (AdminException e1) {
      throw new TestException(TestHelper.getStackTrace(e1));
    }

    // Now actually stop the vms.
    // First get the ClientVmInfos for the members that shutDownAllMembers
    // disconnected.
    List<ClientVmInfo> allClientInfos = new ArrayList(); // all members that were shutdown
    List<ClientVmInfo> allOtherClientInfos =
        new ArrayList(); // all members that were shutdown except this member
    ClientVmInfo thisClientInfo =
        null; // this member, or will remain null if this member was not shutdown
    List<String> stopModesToUse = new ArrayList();
    for (DistributedMember aMember : memberSet) {
      Integer vmId = null;
      try {
        vmId =
            new Integer(RemoteTestModule.Master.getVmid(aMember.getHost(), aMember.getProcessId()));
      } catch (java.rmi.RemoteException e) {
        throw new HydraRuntimeException("Unable to get vmID for " + aMember + ": " + e);
      }
      ClientVmInfo infoFromBB =
          (ClientVmInfo) StopStartBB.getBB().getSharedMap().get("StopStartVMInfo_for_vmid_" + vmId);
      String clientName = null;
      if (infoFromBB != null) {
        clientName = infoFromBB.getClientName();
      }
      ClientVmInfo info = new ClientVmInfo(vmId, clientName, null);
      allClientInfos.add(info);
      if (vmId == RemoteTestModule.getMyVmid()) {
        // shutdownAll disconnected this vm
        thisClientInfo = info;
      } else { // aMember is not the current vm
        allOtherClientInfos.add(info);
      }
      stopModesToUse.add(
          stopModes.get(TestConfig.tab().getRandGen().nextInt(0, stopModes.size() - 1)));
    }

    // now actually stop the vms; if this vm is included, do it last
    Object[] returnArr = new Object[2];
    if (thisClientInfo == null) { // shutDownAllMembers did not disconnect this vm
      // we can just stop all of them now and this vm lives on
      StopStartVMs.stopVMs(allClientInfos, stopModesToUse); // restart is ON_DEMAND
      returnArr[0] = allClientInfos;
    } else { // this vm was disconnected by shutDownAllMembers
      // first shutdown all other members except this one
      StopStartVMs.stopVMs(allOtherClientInfos, stopModesToUse.subList(0, stopModesToUse.size()));
      returnArr[0] = allOtherClientInfos;
    }
    returnArr[1] = memberSet;
    return returnArr;
  }
Esempio n. 8
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  /**
   * Concurrently stop and/or start a List of Vms. Wait for the operations to complete before
   * returning.
   *
   * <p>Side effects: For any VM which is performing a NICE_KILL because of this call, it is marked
   * as such in the StopStartBB (blackboard). The blackboard will contain a key prefixed with
   * util.StopStartVMs.NiceKillInProgress and appended to with its VmId. The value of this key is
   * the true.
   *
   * <p>This blackboard entry is for the convenience of the caller, and it is up to the caller to
   * look for it or not. When a VM undergoes a NICE_KILL, the VM closes the cache and disconnects
   * from the distributed system. Any threads in that VM doing work can get exceptions during the
   * close and/or disconnect step. This blackboard entry is useful for those threads to allow
   * exceptions when they know an exception is possible.
   *
   * @param targetVmList A list of hydra.ClientVmInfos to stop and/or start.
   * @param stopModeList A parallel list of stop modes (Strings), if doStop is true.
   * @param doStop True if we want to stop the targetVmList, false if not.
   * @param doStart True if we want to start the targetVmList, false if not.
   */
  private static void stopStartVMs(
      List targetVmList, List stopModeList, boolean doStop, boolean doStart) {
    Log.getLogWriter()
        .info(
            "In stopStartVMs, vms to "
                + getAction(doStop, doStart)
                + ": "
                + targetVmList
                + ", corresponding stop modes: "
                + stopModeList);
    if (doStop) {

      // mark in the blackboard any vms that will undergo a NICE_KILL
      for (int i = 0; i < stopModeList.size(); i++) {
        String stopMode = (String) (stopModeList.get(i));
        if (ClientVmMgr.toStopMode(stopMode) == ClientVmMgr.NICE_KILL) {
          // write nice kills to the blackboard so the killed vm may, if it chooses, handle any
          // exceptions that are underway.
          StopStartBB.getBB()
              .getSharedMap()
              .put(
                  NiceKillInProgress + ((ClientVmInfo) targetVmList.get(i)).getVmid(),
                  new Boolean(true));
        }
      }
    }

    // process the vms in targetVms list
    List threadList = new ArrayList();
    for (int i = 0; i < targetVmList.size(); i++) {
      ClientVmInfo targetVm = (ClientVmInfo) (targetVmList.get(i));
      int stopMode = 0;
      if (doStop) {
        stopMode = ClientVmMgr.toStopMode((String) (stopModeList.get(i)));
      }
      StringBuffer aStr = new StringBuffer();
      Thread aThread = new StopStartVMs(targetVm, stopMode, doStop, doStart);
      aThread = new HydraSubthread(aThread);
      threadList.add(aThread);
      aThread.start();
    }

    // wait for all threads to complete their actions
    for (int i = 0; i < threadList.size(); i++) {
      Thread aThread = (Thread) (threadList.get(i));
      try {
        aThread.join();
      } catch (InterruptedException e) {
        throw new TestException(TestHelper.getStackTrace(e));
      }
    }
    String err = (String) (StopStartBB.getBB().getSharedMap().get(StopStartBB.errKey));
    if (err != null) {
      throw new TestException(err);
    }

    // reset the blackboard entries
    if (doStop) {
      for (int i = 0; i < targetVmList.size(); i++) {
        ClientVmInfo targetVm = (ClientVmInfo) (targetVmList.get(i));
        StopStartBB.getBB()
            .getSharedMap()
            .put(StopStartVMs.NiceKillInProgress + targetVm.getVmid(), new Boolean(false));
      }
    }
    Log.getLogWriter()
        .info("In stopStartVMs, done with " + getAction(doStop, doStart) + ": " + targetVmList);
  }
Esempio n. 9
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 /**
  * An init task to write ClientVmInfo instances to the blackboard, for use later in choosing vms
  * to stop/start. This is only necessary if getOtherVMs(numToTarget, clientMatchStr) is used.
  */
 public static void StopStart_initTask() {
   int myVMid = RemoteTestModule.getMyVmid();
   ClientVmInfo myInfo =
       new ClientVmInfo(new Integer(myVMid), RemoteTestModule.getMyClientName(), null);
   StopStartBB.getBB().getSharedMap().put(VmInfoKey + myVMid, myInfo);
 }
Esempio n. 10
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 /** Returns true if a NICE_KILL is in progress in this VM, false otherwise */
 public static boolean niceKillInProgress() {
   Object niceKill =
       StopStartBB.getBB().getSharedMap().get(NiceKillInProgress + RemoteTestModule.getMyVmid());
   boolean niceKillInProgress = (niceKill != null) && (((Boolean) niceKill).booleanValue());
   return niceKillInProgress;
 }