Package org.jgroups.util

Examples of org.jgroups.util.Digest$Entry


            needsReconciliationPhase = enable_reconciliation && flushCompleted
                                       && hasVirtualSynchronyGaps();
            if(needsReconciliationPhase){

                Digest d = findHighestSequences();
                msg = new Message();
                msg.setFlag(Message.OOB);
                FlushHeader fh = new FlushHeader(FlushHeader.FLUSH_RECONCILE,
                                                 currentViewId(),
                                                 flushMembers);
View Full Code Here


    }

    private boolean hasVirtualSynchronyGaps() {
        ArrayList<Digest> digests = new ArrayList<Digest>();
        digests.addAll(flushCompletedMap.values());
        Digest firstDigest = digests.get(0);
        List<Digest> remainingDigests = digests.subList(1, digests.size());
        for(Digest digest:remainingDigests){
            Digest diff = firstDigest.difference(digest);
            if(diff != Digest.EMPTY_DIGEST){
                return true;
            }
        }
        return false;
View Full Code Here

        }
        return false;
    }

    private Digest findHighestSequences() {
        Digest result = null;
        List<Digest> digests = new ArrayList<Digest>(flushCompletedMap.values());

        result = digests.get(0);
        List<Digest> remainingDigests = digests.subList(1, digests.size());

        for(Digest digestG:remainingDigests){
            result = result.highestSequence(digestG);
        }
        return result;
    }
View Full Code Here

                          + flushCompletedMap
                          + " flushMembers "
                          + flushMembers);
        }
        if(flushOkCompleted){
            Digest digest = (Digest) down_prot.down(new Event(Event.GET_DIGEST));
            FlushHeader fh = new FlushHeader(FlushHeader.FLUSH_COMPLETED, viewID);
            fh.addDigest(digest);
            m.putHeader(getName(), fh);
            down_prot.down(new Event(Event.MSG, m));
            if(log.isDebugEnabled())
View Full Code Here

    /**
     * Get the view and digest and send back both (MergeData) in the form of a MERGE_RSP to the sender.
     * If a merge is already in progress, send back a MergeData with the merge_rejected field set to true.
     */
    public void handleMergeRequest(Address sender, ViewId merge_id) {
        Digest digest;
        View view;

        if(sender == null) {
            if(log.isErrorEnabled()) log.error("sender == null; cannot send back a response");
            return;
View Full Code Here

            // Example: {A}, B joins, after returning JoinRsp to B, A garbage collects messages higher than those
            // in the digest returned to the client, so the client will *not* be able to ask for retransmission
            // of those messages if he misses them           
            if(hasJoiningMembers) {
                gms.getDownProtocol().down(new Event(Event.SUSPEND_STABLE, MAX_SUSPEND_TIMEOUT));
                Digest tmp=gms.getDigest(); // get existing digest
                MutableDigest join_digest=null;
                if(tmp == null){
                    log.error("received null digest from GET_DIGEST: will cause JOIN to fail");
                }
                else {
                    // create a new digest, which contains the new member
                    join_digest=new MutableDigest(tmp.size() + new_mbrs.size());
                    join_digest.add(tmp); // add the existing digest to the new one
                    for(Address member:new_mbrs)
                        join_digest.add(member, 0, 0); // ... and add the new members. their first seqno will be 1
                }
                join_rsp=new JoinRsp(new_view, join_digest != null? join_digest.copy() : null);
View Full Code Here

    }



    void becomeSingletonMember(Address mbr) {
        Digest initial_digest;
        ViewId view_id;
        Vector<Address> mbrs=new Vector<Address>(1);

        // set the initial digest (since I'm the first member)
        initial_digest=new Digest(gms.local_addr, 0, 0); // initial seqno mcast by me will be 1 (highest seen +1)
        gms.setDigest(initial_digest);

        view_id=new ViewId(mbr);       // create singleton view with mbr as only member
        mbrs.addElement(mbr);
View Full Code Here

            Thread t=getThreadFactory().newThread(spawner,
                                                  "STREAMING_STATE_TRANSFER server socket acceptor");
            t.start();
        }

        Digest digest=isDigestNeeded()? (Digest)down_prot.down(Event.GET_DIGEST_EVT) : null;
     
        Message state_rsp=new Message(stateRequester);
        StateHeader hdr=new StateHeader(StateHeader.STATE_RSP,
                                        local_addr,
                                        spawner.getServerSocketAddress(),
View Full Code Here

                down_prot.down(new Event(Event.OPEN_BARRIER));
        }
    }

    void handleStateRsp(StateHeader hdr) {
        Digest tmp_digest=hdr.my_digest;
        if(isDigestNeeded()) {
            if(tmp_digest == null) {
                if(log.isWarnEnabled())
                    log.warn("digest received from " + hdr.sender
                             + " is null, skipping setting digest !");
View Full Code Here

    public void handleJoinResponse(JoinRsp join_rsp) {
        View v=join_rsp.getView();
        ViewId tmp_vid=v != null? v.getViewId() : null;
        ViewId my_view=gms.getViewId();
        if(tmp_vid != null && my_view != null && tmp_vid.compareToIDs(my_view) > 0) {
            Digest d=join_rsp.getDigest();
            gms.installView(v, d);
        }
    }
View Full Code Here

TOP

Related Classes of org.jgroups.util.Digest$Entry

Copyright © 2018 www.massapicom. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.