Package com.sleepycat.je.rep.vlsn

Examples of com.sleepycat.je.rep.vlsn.VLSNRange

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            FeederSyncupReader backwardsReader = null;

            VLSN scanVLSN = startVLSN;
            if (startVLSN.equals(VLSN.NULL_VLSN)) {
                RepImpl repImpl = RepInternal.getRepImpl(rep);
                VLSNRange range = repImpl.getVLSNIndex().getRange();
                if (forward) {
                    scanVLSN = range.getFirst();
                } else {
                    scanVLSN = range.getLast();
                }
            }
            if (scanVLSN.equals(VLSN.NULL_VLSN)) {
                /* Give up, no VLSN entries in the index. */
                System.out.println("<DbPrintLog>");
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             * Find a replication stream matchpoint and a place to start
             * the replication stream. If the feeder cannot service this
             * protocol because it has run out of replication stream,
             * findMatchpoint will throw a InsufficientLogException. If the
             */
            VLSNRange range = vlsnIndex.getRange();
            findMatchpoint(range);

            /*
             * If we can't rollback to the found matchpoint, verifyRollback
             * will throw the appropriate exception.
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            } else {
                DatabaseEntry data = new DatabaseEntry(ln.getData());

                if (keyVal == VLSNRange.RANGE_KEY) {
                    outStream.print(" range: ");
                    VLSNRange range = VLSNRange.readFromDatabase(data);
                    outStream.println(range);
                } else {
                    outStream.print(" key=" + keyVal);
                    VLSNBucket bucket = VLSNBucket.readFromDatabase(data);
                    outStream.println(" " + bucket);
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             * an EntryRequest.
             *
             * The first entry request has three possible types of message
             * responses - EntryNotFound, AlternateMatchpoint, or Entry.
             */
            VLSNRange range = vlsnIndex.getRange();
            EntryRequest firstRequest =
                (EntryRequest) protocol.read(namedChannel);
            Message response = makeResponseToEntryRequest(range,
                                                          firstRequest,
                                                          true);
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        if (feederManager.getEnvImpl() instanceof RepImpl) {
            /* Include replication stream feeders as a load component. */
            RepImpl repImpl = (RepImpl) feederManager.getEnvImpl();
            feeders +=
                repImpl.getRepNode().feederManager().activeReplicaCount();
            VLSNRange range = repImpl.getVLSNIndex().getRange();
            rangeFirst = range.getFirst();
            rangeLast = range.getLast();
        }
        protocol.write(protocol.new FeederInfoResp
                       (feeders, rangeFirst, rangeLast), namedChannel);
    }
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     */
    public OutputWireRecord scanBackwards(VLSN vlsn)
        throws DatabaseException {

        syncableSearch = false;
        VLSNRange range = vlsnIndex.getRange();
        if (vlsn.compareTo(range.getFirst()) < 0) {
            /*
             * The requested VLSN is before the start of our range, we don't
             * have this record.
             */
            return null;
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        syncableSearch = true;

        /* Start by looking at the entry before the current record. */
        currentVLSN = currentVLSN.getPrev();

        VLSNRange range = vlsnIndex.getRange();
        if (currentVLSN.compareTo(range.getFirst()) < 0) {

            /*
             * We've walked off the end of the contiguous VLSN range.
             */
            return null;
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                /* no live read/write txns, nothing to do. */
                rollbackStatus = RBSTATUS_NO_ACTIVE;
                return;
            }

            VLSNRange range = repImpl.getVLSNIndex().getRange();
            if (range.getLast().equals(matchpointVLSN)) {
                /* nothing to roll back. */
                rollbackStatus = RBSTATUS_RANGE_EQUALS;
                return;
            }

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     * @throws FileNotFoundException
     */
    public OutputWireRecord scanBackwards(VLSN vlsn)
        throws FileNotFoundException, ChecksumException {

        VLSNRange range = vlsnIndex.getRange();
        if (vlsn.compareTo(range.getFirst()) < 0) {
            /*
             * The requested VLSN is before the start of our range, we don't
             * have this record.
             */
            return null;
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        if (startVLSN.equals(VLSN.NULL_VLSN)) {
            throw EnvironmentFailureException.unexpectedState
                ("startVLSN can't be null");
        }

        VLSNRange currentRange = vlsnIndex.getRange();
        VLSN startPoint = startVLSN;
        if (currentRange.getLast().compareTo(startVLSN) < 0) {
            /*
             * When feeding, we may be starting at the VLSN following the last
             * VLSN in the node.
             */
            startPoint = currentRange.getLast();
        }

        startLsn = scanner.getStartingLsn(startPoint);
        assert startLsn != DbLsn.NULL_LSN;

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Related Classes of com.sleepycat.je.rep.vlsn.VLSNRange

  • com.sleepycat.je.Cursor
  • com.sleepycat.je.DatabaseEntry
  • com.sleepycat.je.OperationStatus
  • com.sleepycat.je.rep.impl.networkRestore.LogFileFeeder
  • com.sleepycat.je.rep.impl.node.Feeder$OutputThread
  • com.sleepycat.je.rep.impl.node.FeederManager
  • com.sleepycat.je.rep.impl.node.GlobalCBVLSN
  • com.sleepycat.je.rep.impl.node.Replay
  • com.sleepycat.je.rep.stream.FeederReader
  • com.sleepycat.je.rep.stream.FeederReplicaSyncup
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