Package org.jgroups.util

Examples of org.jgroups.util.MutableDigest

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            // 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);
            }

            sendLeaveResponses(leaving_mbrs); // no-op if no leaving members                           
            gms.castViewChangeWithDest(new_view, null,join_rsp,new_mbrs);                     
        }
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    /**
     * Merge all digests into one. For each sender, the new value is min(low_seqno), max(high_seqno),
     * max(high_seqno_seen). This method has a lock on merge_rsps
     */
    private Digest consolidateDigests(Vector<MergeData> merge_rsps, int num_mbrs) {              
        MutableDigest retval=new MutableDigest(num_mbrs);

        for(MergeData data:merge_rsps) {           
            Digest tmp_digest=data.getDigest();
            if(tmp_digest == null) {
                if(log.isErrorEnabled()) log.error("tmp_digest == null; skipping");
                continue;
            }
            retval.merge(tmp_digest);
        }
        return retval.copy();
    }
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        super.setUp();
        a=new IpAddress(5000);
        b=new IpAddress(6000);
        c=new IpAddress(7000);
        nak=new NAKACK();
        d1=new MutableDigest(2);
        d1.add(a, 0, 10, 10);
        d1.add(b, 0, 30, 30);

        d2=new MutableDigest(3);
        d2.add(a, 0, 10, 11);
        d2.add(b, 0, 35, 35);
        d2.add(c, 10, 50, 50);

        nak.setDownProtocol(new TP() {
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            // 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);
            }

            sendLeaveResponses(leaving_mbrs); // no-op if no leaving members                           
            gms.castViewChangeWithDest(new_view, join_rsp != null? join_rsp.getDigest() : null, join_rsp,new_mbrs);                     
        }
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                    if(log.isWarnEnabled())
                        log.warn("digest response has no senders: digest=" + rsp.getDigest());
                    rsp=null; // just skip the response we guess
                    continue;
                }
                MutableDigest tmp_digest=new MutableDigest(rsp.getDigest());
                tmp_view=rsp.getView();
                if(tmp_view == null) {
                    if(log.isErrorEnabled())
                        log.error("JoinRsp has a null view, skipping it");
                    rsp=null;
                }
                else {
                    if(!tmp_digest.contains(gms.local_addr)) {
                        throw new IllegalStateException("digest returned from " + coord + " with JOIN_RSP does not contain myself (" +
                                gms.local_addr + "): join response: " + rsp);
                    }
                    tmp_digest.incrementHighestDeliveredSeqno(coord); // see DESIGN for details
                    tmp_digest.seal();
                    gms.setDigest(tmp_digest);

                    if(log.isDebugEnabled())
                        log.debug("[" + gms.local_addr + "]: JoinRsp=" + tmp_view + " [size=" + tmp_view.size() + "]\n\n");
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            // 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);
            }

            sendLeaveResponses(leaving_mbrs); // no-op if no leaving members                           
            gms.castViewChangeWithDest(new_view, join_rsp != null? join_rsp.getDigest() : null, join_rsp,new_mbrs);                     
        }
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            // 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(joining_mbrs) {
                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);
            }

            sendLeaveResponses(leaving_mbrs); // no-op if no leaving members

            Vector<Address> tmp_mbrs=new_view != null? new Vector<Address>(new_view.getMembers()) : null;
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    /**
     * Merge all digests into one. For each sender, the new value is min(low_seqno), max(high_seqno),
     * max(high_seqno_seen). This method has a lock on merge_rsps
     */
    private Digest consolidateDigests(Vector<MergeData> merge_rsps, int num_mbrs) {              
        MutableDigest retval=new MutableDigest(num_mbrs);

        for(MergeData data:merge_rsps) {           
            Digest tmp_digest=data.getDigest();
            if(tmp_digest == null) {
                if(log.isErrorEnabled()) log.error("tmp_digest == null; skipping");
                continue;
            }
            retval.merge(tmp_digest);
        }
        return retval.copy();
    }
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                    if(log.isWarnEnabled())
                        log.warn("digest response has no senders: digest=" + rsp.getDigest());
                    rsp=null; // just skip the response we guess
                    continue;
                }
                MutableDigest tmp_digest=new MutableDigest(rsp.getDigest());
                tmp_view=rsp.getView();
                if(tmp_view == null) {
                    if(log.isErrorEnabled())
                        log.error("JoinRsp has a null view, skipping it");
                    rsp=null;
                }
                else {
                    if(!tmp_digest.contains(gms.local_addr)) {
                        throw new IllegalStateException("digest returned from " + coord + " with JOIN_RSP does not contain myself (" +
                                gms.local_addr + "): join response: " + rsp);
                    }
                    tmp_digest.incrementHighestDeliveredSeqno(coord); // see DESIGN for details
                    tmp_digest.seal();
                    gms.setDigest(tmp_digest);

                    if(log.isDebugEnabled())
                        log.debug("[" + gms.local_addr + "]: JoinRsp=" + tmp_view + " [size=" + tmp_view.size() + "]\n\n");
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        members=new Address[]{a1,a2,a3};
    }

    @BeforeMethod void beforeMethod() {
        d=new Digest(members, new long[]{500,501, 26,26, 25,33});
        md=new MutableDigest(members);
    }
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Related Classes of org.jgroups.util.MutableDigest

  • org.jgroups.Address
  • org.jgroups.protocols.NAKACK_StressTest
  • org.jgroups.protocols.pbcast.ClientGmsImpl
  • org.jgroups.protocols.pbcast.CoordGmsImpl
  • org.jgroups.tests.DigestTest
  • org.jgroups.tests.MergeTest3
  • org.jgroups.tests.MergeTest4
  • org.jgroups.tests.NAKACK_SET_DIGEST_Test
  • org.jgroups.tests.NakackTest
  • org.jgroups.tests.SequencerMergeTest
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