Package org.apache.zookeeper.server

Examples of org.apache.zookeeper.server.Request

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    }

    LinkedBlockingQueue<Request> pendingTxns = new LinkedBlockingQueue<Request>();

    public void logRequest(TxnHeader hdr, Record txn) {
        Request request = new Request(hdr.getClientId(), hdr.getCxid(), hdr.getType(), hdr, txn, hdr.getZxid());
        if ((request.zxid & 0xffffffffL) != 0) {
            pendingTxns.add(request);
        }
        syncProcessor.processRequest(request);
    }
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            LOG.error("Committing zxid 0x" + Long.toHexString(zxid)
                    + " but next pending txn 0x"
                    + Long.toHexString(firstElementZxid));
            System.exit(12);
        }
        Request request = pendingTxns.remove();
        commitProcessor.commit(request);
    }
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        if(pendingSyncs.size() ==0){
            LOG.warn("Not expecting a sync.");
            return;
        }

        Request r = pendingSyncs.remove();
    commitProcessor.commit(r);
    }
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        synchronized (upgradeableSessionTracker) {
            if (upgradeableSessionTracker.isLocalSession(sessionId)) {
                int timeout = upgradeableSessionTracker.upgradeSession(sessionId);
                ByteBuffer to = ByteBuffer.allocate(4);
                to.putInt(timeout);
                return new Request(
                        null, sessionId, 0, OpCode.createSession, to, null);
            }
        }
        return null;
    }
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     * Implements the SessionUpgrader interface,
     *
     * @param sessionId
     */
    public void upgrade(long sessionId) {
        Request request = makeUpgradeRequest(sessionId);
        if (request != null) {
            LOG.info("Upgrading session 0x" + Long.toHexString(sessionId));
            // This must be a global request
            submitRequest(request);
        }
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    @Override
    public void run() {
        try {
            while (!finished) {
                Request request = queuedRequests.take();
                if (LOG.isTraceEnabled()) {
                    ZooTrace.logRequest(LOG, ZooTrace.CLIENT_REQUEST_TRACE_MASK,
                            'F', request, "");
                }
                if (request == Request.requestOfDeath) {
                    break;
                }
                // We want to queue the request to be processed before we submit
                // the request to the leader so that we are ready to receive
                // the response
                nextProcessor.processRequest(request);

                // We now ship the request to the leader. As with all
                // other quorum operations, sync also follows this code
                // path, but different from others, we need to keep track
                // of the sync operations this Observer has pending, so we
                // add it to pendingSyncs.
                switch (request.type) {
                case OpCode.sync:
                    zks.pendingSyncs.add(request);
                    zks.getObserver().request(request);
                    break;
                case OpCode.create:
                case OpCode.create2:
                case OpCode.delete:
                case OpCode.setData:
                case OpCode.reconfig:
                case OpCode.setACL:
                case OpCode.multi:
                case OpCode.check:
                    zks.getObserver().request(request);
                    break;
                case OpCode.createSession:
                case OpCode.closeSession:
                    // Don't forward local sessions to the leader.
                    if (!request.isLocalSession()) {
                        zks.getObserver().request(request);
                    }
                    break;
                }
            }
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    /**
     * Simply queue the request, which will be processed in FIFO order.
     */
    public void processRequest(Request request) {
        if (!finished) {
            Request upgradeRequest = null;
            try {
                upgradeRequest = zks.checkUpgradeSession(request);
            } catch (KeeperException ke) {
                if (request.getHdr() != null) {
                    request.getHdr().setType(OpCode.error);
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    @Override
    public void processRequest(Request request)
            throws RequestProcessorException {
        // Check if this is a local session and we are trying to create
        // an ephemeral node, in which case we upgrade the session
        Request upgradeRequest = null;
        try {
            upgradeRequest = lzks.checkUpgradeSession(request);
        } catch (KeeperException ke) {
            if (request.getHdr() != null) {
                LOG.debug("Updating header");
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            fzk.commit(qp.getZxid());
            break;
           
        case Leader.COMMITANDACTIVATE:
           // get the new configuration from the request
           Request request = fzk.pendingTxns.element();
           SetDataTxn setDataTxn = (SetDataTxn) request.getTxn();                                                                                                     
           QuorumVerifier qv = self.configFromString(new String(setDataTxn.getData()));                               
           // get new designated leader from (current) leader's message
           ByteBuffer buffer = ByteBuffer.wrap(qp.getData());   
           long suggestedLeaderId = buffer.getLong();
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        }
    }

    @Override
    public void run() {
        Request request;
        try {
            while (!stopped) {
                synchronized(this) {
                    while (
                        !stopped &&
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Related Classes of org.apache.zookeeper.server.Request

  • org.apache.zookeeper.server.PrepRequestProcessorTest
  • org.apache.zookeeper.server.quorum.CommitProcessor
  • org.apache.zookeeper.server.quorum.CommitProcessorConcurrencyTest
  • org.apache.zookeeper.server.quorum.CommitProcessorTest$MockProposalRequestProcessor
  • org.apache.zookeeper.server.quorum.CommitProcessorTest$TestClientThread
  • org.apache.zookeeper.server.quorum.Follower
  • org.apache.zookeeper.server.quorum.FollowerHandler
  • org.apache.zookeeper.server.quorum.FollowerRequestProcessor
  • org.apache.zookeeper.server.quorum.FollowerZooKeeperServer
  • org.apache.zookeeper.server.quorum.LeaderRequestProcessor
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