Package org.apache.zookeeper.server

Examples of org.apache.zookeeper.server.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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    @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) {
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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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    volatile boolean finished = false;

    @Override
    public void run() {
        try {
            Request nextPending = null;           
            while (!finished) {
                int len = toProcess.size();
                for (int i = 0; i < len; i++) {
                    nextProcessor.processRequest(toProcess.get(i));
                }
                toProcess.clear();
                synchronized (this) {
                    if ((queuedRequests.size() == 0 || nextPending != null)
                            && committedRequests.size() == 0) {
                        wait();
                        continue;
                    }
                    // First check and see if the commit came in for the pending
                    // request
                    if ((queuedRequests.size() == 0 || nextPending != null)
                            && committedRequests.size() > 0) {
                        Request r = committedRequests.remove();
                        /*
                         * We match with nextPending so that we can move to the
                         * next request when it is committed. We also want to
                         * use nextPending because it has the cnxn member set
                         * properly.
                         */
                        if (nextPending != null
                                && nextPending.sessionId == r.sessionId
                                && nextPending.cxid == r.cxid) {
                            // we want to send our version of the request.
                            // the pointer to the connection in the request
                            nextPending.hdr = r.hdr;
                            nextPending.txn = r.txn;
                            nextPending.zxid = r.zxid;
                            toProcess.add(nextPending);
                            nextPending = null;
                        } else {
                            // this request came from someone else so just
                            // send the commit packet
                            toProcess.add(r);
                        }
                    }
                }

                // We haven't matched the pending requests, so go back to
                // waiting
                if (nextPending != null) {
                    continue;
                }

                synchronized (this) {
                    // Process the next requests in the queuedRequests
                    while (nextPending == null && queuedRequests.size() > 0) {
                        Request request = queuedRequests.remove();
                        switch (request.type) {
                        case OpCode.create:
                        case OpCode.delete:
                        case OpCode.setData:
                        case OpCode.multi:
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                    oldDataTree.processTxn(hdr, txn);
                    break;
                default:
                    oldDataTree.processTxn(hdr, txn);
                }
                Request r = new Request(null, 0, hdr.getCxid(), hdr.getType(),
                        null, null);
                r.txn = txn;
                r.hdr = hdr;
                r.zxid = hdr.getZxid();
            }
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    @Override
    public void run() {
        try {
            while (!finished) {
                Request request = queuedRequests.take();
                ZooTrace.logRequest(LOG, ZooTrace.CLIENT_REQUEST_TRACE_MASK,
                        'F', request, "");
                if (request == Request.requestOfDeath) {
                    break;
                }
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    volatile boolean finished = false;

    @Override
    public void run() {
        try {
            Request nextPending = null;
            ArrayList<Request> toProcess = new ArrayList<Request>();
            while (!finished) {
                int len = toProcess.size();
                for (int i = 0; i < len; i++) {
                    nextProcessor.processRequest(toProcess.get(i));
                }
                toProcess.clear();
                synchronized (this) {
                    if ((queuedRequests.size() == 0 || nextPending != null)
                            && committedRequests.size() == 0) {
                        wait();
                        continue;
                    }
                    // First check and see if the commit came in for the pending
                    // request
                    if ((queuedRequests.size() == 0 || nextPending != null)
                            && committedRequests.size() > 0) {
                        Request r = committedRequests.remove();
                        /*
                         * We match with nextPending so that we can move to the
                         * next request when it is committed. We also want to
                         * use nextPending because it has the cnxn member set
                         * properly.
                         */
                        if (nextPending != null
                                && nextPending.sessionId == r.sessionId
                                && nextPending.cxid == r.cxid) {
                            // we want to send our version of the request.
                            // the pointer to the connection in the request
                            nextPending.hdr = r.hdr;
                            nextPending.txn = r.txn;
                            nextPending.zxid = r.zxid;
                            toProcess.add(nextPending);
                            nextPending = null;
                        } else {
                            // this request came from someone else so just
                            // send the commit packet
                            toProcess.add(r);
                        }
                    }
                }

                // We haven't matched the pending requests, so go back to
                // waiting
                if (nextPending != null) {
                    continue;
                }

                synchronized (this) {
                    // Process the next requests in the queuedRequests
                    while (nextPending == null && queuedRequests.size() > 0) {
                        Request request = queuedRequests.remove();
                        switch (request.type) {
                        case OpCode.create:
                        case OpCode.delete:
                        case OpCode.setData:
                        case OpCode.setACL:
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    }

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

    public void logRequest(TxnHeader hdr, Record txn) {
        Request request = new Request(null, hdr.getClientId(), hdr.getCxid(),
                hdr.getType(), null, null);
        request.hdr = hdr;
        request.txn = txn;
        request.zxid = hdr.getZxid();
        if ((request.zxid & 0xffffffffL) != 0) {
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            LOG.fatal("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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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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