Examples with NetView org.apache.geode.distributed.internal.membership.NetView used on opensource projects

Example 46 with NetView

use of org.apache.geode.distributed.internal.membership.NetView in project geode by apache.

the class GMSHealthMonitorJUnitTest method testRemoveMemberCalledAfterDoingFinalCheckOnCoordinator.

/***
   * Send remove member message after doing final check for coordinator, ping timeout This test
   * trying to remove coordinator
   */
@Test
public void testRemoveMemberCalledAfterDoingFinalCheckOnCoordinator() throws Exception {
    NetView v = new NetView(mockMembers.get(0), 2, mockMembers);
    // preferred coordinators are 0 and 1
    // next preferred coordinator
    when(messenger.getMemberID()).thenReturn(mockMembers.get(1));
    gmsHealthMonitor.started();
    gmsHealthMonitor.installView(v);
    Thread.sleep(memberTimeout / GMSHealthMonitor.LOGICAL_INTERVAL);
    ArrayList<InternalDistributedMember> recipient = new ArrayList<InternalDistributedMember>();
    recipient.add(mockMembers.get(0));
    recipient.add(mockMembers.get(1));
    ArrayList<SuspectRequest> as = new ArrayList<SuspectRequest>();
    // removing
    SuspectRequest sr = new SuspectRequest(mockMembers.get(0), "Not Responding");
    // coordinator
    as.add(sr);
    SuspectMembersMessage sm = new SuspectMembersMessage(recipient, as);
    // member 4 sends suspect message
    sm.setSender(mockMembers.get(myAddressIndex + 1));
    gmsHealthMonitor.processMessage(sm);
    // this happens after final check, ping timeout = 1000 ms
    Thread.sleep(memberTimeout + 200);
    verify(joinLeave, atLeastOnce()).remove(any(InternalDistributedMember.class), any(String.class));
    Assert.assertTrue(gmsHealthMonitor.getStats().getSuspectsReceived() > 0);
}

Example 47 with NetView

use of org.apache.geode.distributed.internal.membership.NetView in project geode by apache.

the class DistributionManager method getViewMembers.

public List<InternalDistributedMember> getViewMembers() {
    NetView result = null;
    DistributionChannel ch = this.channel;
    if (ch != null) {
        MembershipManager mgr = ch.getMembershipManager();
        if (mgr != null) {
            result = mgr.getView();
        }
    }
    if (result == null) {
        result = new NetView();
    }
    return result.getMembers();
}

Example 48 with NetView

use of org.apache.geode.distributed.internal.membership.NetView in project geode by apache.

the class DistributionManager method startThreads.

/**
   * Need to do this outside the constructor so that the child constructor can finish.
   */
protected void startThreads() {
    // fix for bug 33362
    this.system.setDM(this);
    if (this.memberEventThread != null)
        this.memberEventThread.start();
    try {
        // And the distinguished guests today are...
        NetView v = membershipManager.getView();
        logger.info(LocalizedMessage.create(LocalizedStrings.DistributionManager_INITIAL_MEMBERSHIPMANAGER_VIEW___0, printView(v)));
        // Add them all to our view
        Iterator<InternalDistributedMember> it = v.getMembers().iterator();
        while (it.hasNext()) {
            addNewMember(it.next());
        }
        // Figure out who the elder is...
        // ShutdownException could be thrown here
        selectElder();
    } catch (Exception ex) {
        throw new InternalGemFireException(LocalizedStrings.DistributionManager_COULD_NOT_PROCESS_INITIAL_VIEW.toLocalizedString(), ex);
    }
    try {
        getWaitingThreadPool().execute(new Runnable() {

            public void run() {
                // call in background since it might need to send a reply
                // and we are not ready to send messages until startup is finished
                isStartupThread.set(Boolean.TRUE);
                readyForMessages();
            }
        });
    } catch (VirtualMachineError err) {
        SystemFailure.initiateFailure(err);
        // now, so don't let this thread continue.
        throw err;
    } catch (Throwable t) {
        // Whenever you catch Error or Throwable, you must also
        // catch VirtualMachineError (see above). However, there is
        // _still_ a possibility that you are dealing with a cascading
        // error condition, so you also need to check to see if the JVM
        // is still usable:
        SystemFailure.checkFailure();
        logger.fatal(LocalizedMessage.create(LocalizedStrings.DistributionManager_UNCAUGHT_EXCEPTION_CALLING_READYFORMESSAGES), t);
    }
}

Example 49 with NetView

use of org.apache.geode.distributed.internal.membership.NetView in project geode by apache.

the class DistributionManager method waitForElder.

/**
   * Waits until elder if newElder or newElder is no longer a member
   * 
   * @return true if newElder is the elder; false if he is no longer a member or we are the elder.
   */
public boolean waitForElder(final InternalDistributedMember desiredElder) {
    MembershipListener l = null;
    try {
        // desiredElder.getVmKind() != DistributionManager.ADMIN_ONLY_DM_TYPE);
        synchronized (this.elderMonitor) {
            while (true) {
                if (closeInProgress)
                    return false;
                InternalDistributedMember currentElder = this.elder;
                // currentElder.getVmKind() != DistributionManager.ADMIN_ONLY_DM_TYPE);
                if (desiredElder.equals(currentElder)) {
                    return true;
                }
                if (!isCurrentMember(desiredElder)) {
                    // no longer present
                    return false;
                }
                if (this.myid.equals(currentElder)) {
                    // elder so don't let them wait anymore.
                    return false;
                }
                if (l == null) {
                    l = new MembershipListener() {

                        public void memberJoined(InternalDistributedMember theId) {
                        // nothing needed
                        }

                        public void memberDeparted(InternalDistributedMember theId, boolean crashed) {
                            if (desiredElder.equals(theId)) {
                                notifyElderChangeWaiters();
                            }
                        }

                        public void memberSuspect(InternalDistributedMember id, InternalDistributedMember whoSuspected, String reason) {
                        }

                        public void viewInstalled(NetView view) {
                        }

                        public void quorumLost(Set<InternalDistributedMember> failures, List<InternalDistributedMember> remaining) {
                        }
                    };
                    addMembershipListener(l);
                }
                logger.info(LocalizedMessage.create(LocalizedStrings.DistributionManager_CHANGING_ELDER_FROM_0_TO_1, new Object[] { currentElder, desiredElder }));
                elderChangeWait();
            }
        // while true
        }
    } finally {
        if (l != null) {
            removeMembershipListener(l);
        }
    }
}

Example 50 with NetView

use of org.apache.geode.distributed.internal.membership.NetView in project geode by apache.

the class GMSMembershipManager method addSurpriseMember.

/**
   * Logic for handling a direct connection event (message received from a member not in the view).
   * Does not employ the startup queue.
   * <p>
   * Must be called with {@link #latestViewLock} held. Waits until there is a stable view. If the
   * member has already been added, simply returns; else adds the member.
   *
   * @param dm the member joining
   */
public boolean addSurpriseMember(DistributedMember dm) {
    final InternalDistributedMember member = (InternalDistributedMember) dm;
    boolean warn = false;
    latestViewWriteLock.lock();
    try {
        // other means.
        if (latestView.contains(member)) {
            return true;
        }
        if (surpriseMembers.containsKey(member)) {
            return true;
        }
        if (member.getVmViewId() < 0) {
            logger.warn("adding a surprise member that has not yet joined the distributed system: " + member, new Exception("stack trace"));
        }
        if (latestView.getViewId() > member.getVmViewId()) {
            // tell the process that it should shut down distribution.
            // Run in a separate thread so we don't hold the view lock during the request. Bug #44995
            new Thread(Thread.currentThread().getThreadGroup(), "Removing shunned GemFire node " + member) {

                @Override
                public void run() {
                    // fix for bug #42548
                    // this is an old member that shouldn't be added
                    logger.warn(LocalizedMessage.create(LocalizedStrings.GroupMembershipService_Invalid_Surprise_Member, new Object[] { member, latestView }));
                    requestMemberRemoval(member, "this member is no longer in the view but is initiating connections");
                }
            }.start();
            addShunnedMember(member);
            return false;
        }
        // Adding him to this set ensures we won't remove him if a new
        // view comes in and he's still not visible.
        surpriseMembers.put(member, Long.valueOf(System.currentTimeMillis()));
        if (shutdownInProgress()) {
            // Force disconnect, esp. the TCPConduit
            String msg = LocalizedStrings.GroupMembershipService_THIS_DISTRIBUTED_SYSTEM_IS_SHUTTING_DOWN.toLocalizedString();
            if (directChannel != null) {
                try {
                    directChannel.closeEndpoint(member, msg);
                } catch (DistributedSystemDisconnectedException e) {
                // ignore - happens during shutdown
                }
            }
            // for good luck
            destroyMember(member, msg);
            // allow during shutdown
            return true;
        }
        if (isShunned(member)) {
            warn = true;
            surpriseMembers.remove(member);
        } else {
            // Ensure that the member is accounted for in the view
            // Conjure up a new view including the new member. This is necessary
            // because we are about to tell the listener about a new member, so
            // the listener should rightfully expect that the member is in our
            // membership view.
            // However, we put the new member at the end of the list. This
            // should ensure he's not chosen as an elder.
            // This will get corrected when he finally shows up in the
            // view.
            NetView newMembers = new NetView(latestView, latestView.getViewId());
            newMembers.add(member);
            latestView = newMembers;
        }
    } finally {
        latestViewWriteLock.unlock();
    }
    if (warn) {
        // fix for bug #41538 - deadlock while alerting
        logger.warn(LocalizedMessage.create(LocalizedStrings.GroupMembershipService_MEMBERSHIP_IGNORING_SURPRISE_CONNECT_FROM_SHUNNED_MEMBER_0, member));
    } else {
        listener.newMemberConnected(member);
    }
    return !warn;
}