Examples of com.persistit.exception.CorruptJournalException

com.persistit.exception.CorruptJournalException
Thrown if the journal files are corrupt. Generally it will be necessary to delete the journal to resolve this. In so doing, critical information needed to recover the state of one or more {@link com.persistit.Volume}s may be lost. @version 1.0

            startTimestamp = TX.getTimestamp(_support.getReadBuffer());
            commitTimestamp = TX.getCommitTimestamp(_support.getReadBuffer());
            backchainAddress = TX.getBackchainAddress(_support.getReadBuffer());
            if (recordSize < TX.OVERHEAD || recordSize > Transaction.TRANSACTION_BUFFER_SIZE + TX.OVERHEAD
                    || type != TX.TYPE) {
                throw new CorruptJournalException("Transaction record at " + addressToString(address)
                        + " has invalid length " + recordSize + " or type " + type);
            }
            if (startTimestamp != item.getStartTimestamp()) {
                throw new CorruptJournalException("Transaction record at " + addressToString(address)
                        + " has an invalid start timestamp: " + startTimestamp);
            }
            if (backchainAddress == 0) {
                if (address != item.getStartAddress()) {
                    throw new CorruptJournalException("Transaction record at " + addressToString(address)
                            + " has an invalid start " + addressToString(item.getStartAddress()));
                }
                break;
            }
            chainedAddress.add(0, address);
            address = backchainAddress;
        }


        listener.startTransaction(address, startTimestamp, commitTimestamp);
        applyTransactionUpdates(_support.getReadBuffer(), address, recordSize, startTimestamp, commitTimestamp,
                listener);


        for (final Long continuation : chainedAddress) {
            address = continuation.longValue();
            _support.read(address, TX.OVERHEAD);
            recordSize = TX.getLength(_support.getReadBuffer());
            if (recordSize < TX.OVERHEAD || recordSize > Transaction.TRANSACTION_BUFFER_SIZE + TX.OVERHEAD
                    || type != TX.TYPE) {
                throw new CorruptJournalException("Transaction record at " + addressToString(address)
                        + " has invalid length " + recordSize + " or type " + type);
            }
            _support.read(address, recordSize);
            applyTransactionUpdates(_support.getReadBuffer(), address, recordSize, startTimestamp, commitTimestamp,
                    listener);

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                    appliedUpdates.incrementAndGet();
                    break;
                }


                default: {
                    throw new CorruptJournalException("Invalid record type " + type + " at journal address "
                            + addressToString(address + position - start) + " index of transaction record at "
                            + addressToString(address));
                }
                }
            } catch (final VolumeNotFoundException vnfe) {

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     */
    private Exchange getExchange(final int treeHandle, final long from, final long timestamp,
            final TransactionPlayerListener listener) throws PersistitException {
        final TreeDescriptor td = _support.getPersistit().getJournalManager().lookupTreeHandle(treeHandle);
        if (td == null) {
            throw new CorruptJournalException("Tree handle " + treeHandle + " is undefined at "
                    + addressToString(from, timestamp));
        }
        final Volume volume = _support.getPersistit().getJournalManager().volumeForHandle(td.getVolumeHandle());
        if (volume == null) {
            throw new CorruptJournalException("Volume handle " + td.getVolumeHandle() + " is undefined at "
                    + addressToString(from, timestamp));
        }
        if (VolumeStructure.DIRECTORY_TREE_NAME.equals(td.getTreeName())) {
            return volume.getStructure().directoryExchange();
        } else {

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            } catch (final IOException ioe) {
                throw new PersistitIOException(ioe);
            }
            if (count < 0) {
                final File file = addressToFile(address);
                throw new CorruptJournalException(String.format("End of file at %s:%d(%,d)", file, fileAddr, address));
            }
            fileAddr += count;
        }
        bb.limit(bb.position());
        bb.position(position);

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        final long recordPageAddress = readPageBufferFromJournal(pn, bb);
        _persistit.getIOMeter().chargeReadPageFromJournal(volume, pageAddress, bufferSize, pn.getJournalAddress(),
                buffer.getIndex());


        if (pageAddress != recordPageAddress) {
            throw new CorruptJournalException("Record at " + pn + " is not volume/page " + buffer.toString());
        }


        if (bb.limit() != bufferSize) {
            throw new CorruptJournalException("Record at " + pn + " is wrong size: expected/actual=" + bufferSize + "/"
                    + bb.limit());
        }
        _readPageCount++;
        buffer.getVolume().getStatistics().bumpReadCounter();
        return true;

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            CorruptJournalException {
        final int at = bb.position();
        bb.limit(at + PA.OVERHEAD);
        readFully(bb, pn.getJournalAddress());
        if (bb.remaining() < PA.OVERHEAD) {
            throw new CorruptJournalException("Record at " + pn.toStringJournalAddress(this) + " is incomplete");
        }
        final int type = JournalRecord.getType(bb);
        final int payloadSize = JournalRecord.getLength(bb) - PA.OVERHEAD;
        final int leftSize = PA.getLeftSize(bb);
        final int bufferSize = PA.getBufferSize(bb);
        final long pageAddress = PA.getPageAddress(bb);


        if (type != PA.TYPE) {
            throw new CorruptJournalException("Record at " + pn.toStringJournalAddress(this) + " is not a PAGE record");
        }


        if (leftSize < 0 || payloadSize < leftSize || payloadSize > bufferSize) {
            throw new CorruptJournalException("Record at " + pn.toStringJournalAddress(this)
                    + " invalid sizes: recordSize= " + payloadSize + " leftSize=" + leftSize + " bufferSize="
                    + bufferSize);
        }


        if (pageAddress != pn.getPageAddress() && pn.getPageAddress() != -1) {
            throw new CorruptJournalException("Record at " + pn.toStringJournalAddress(this)
                    + " mismatched page address: expected/actual=" + pn.getPageAddress() + "/" + pageAddress);
        }


        bb.limit(at + payloadSize).position(at);
        readFully(bb, pn.getJournalAddress() + PA.OVERHEAD);

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            try {
                if (_writeBuffer.position() > 0) {
                    final FileChannel channel = getFileChannel(address);
                    final long size = channel.size();
                    if (size < addressToOffset(address)) {
                        throw new CorruptJournalException(String.format(
                                "Journal file %s size %,d does not match current address %,d", addressToFile(address),
                                size, address));
                    }


                    _writeBuffer.flip();

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            Debug.$assert0.t(pageAddress == pageNode.getPageAddress());
            pageNode.setOffset(at);


            if (bb.limit() - at != volume.getStructure().getPageSize()) {
                throw new CorruptJournalException(pageNode.toStringPageAddress(this) + " bufferSize " + bb.limit()
                        + " does not match " + volume + " bufferSize " + volume.getPageSize() + " at "
                        + pageNode.toStringJournalAddress(this));
            }


            bb.position(bb.limit());

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                    offset += readSize;
                }
                _readBufferAddress = address;
                _readBuffer.flip();
                if (_readBuffer.remaining() < size) {
                    throw new CorruptJournalException("End of file at " + addressToString(address));
                }
            } catch (final IOException e) {
                throw new PersistitIOException("Reading from " + addressToString(address), e);
            }
        }

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        }


        void dumpPageMap(final int count, final long from, final long timestamp, final int recordSize)
                throws PersistitIOException {
            if (count * PM.ENTRY_SIZE + PM.OVERHEAD != recordSize) {
                throw new CorruptJournalException("Invalid record size " + recordSize + " for PM record at "
                        + addressToString(from, timestamp));
            }


            long address = from + PM.OVERHEAD;
            int index = 0;
            int loaded = 0;
            long lastPage = Long.MAX_VALUE;
            int lastVolumeHandle = Integer.MAX_VALUE;
            for (int remaining = count; remaining > 0; remaining--) {
                if (index == loaded) {
                    final int loadedSize = Math.min((_readBuffer.capacity() / PM.ENTRY_SIZE) * PM.ENTRY_SIZE, remaining
                            * PM.ENTRY_SIZE);
                    read(address, loadedSize);
                    address += loadedSize;
                    index = 0;
                    loaded = loadedSize / PM.ENTRY_SIZE;
                    if (loaded <= 0) {
                        throw new CorruptJournalException("Could not load PageMap segment in entry "
                                + (count - remaining + 1) + " at " + addressToString(from, timestamp));
                    }
                }
                final int volumeHandle = PM.getEntryVolumeHandle(_readBuffer, index);
                final long pageAddress = PM.getEntryPageAddress(_readBuffer, index);

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Related Classes of com.persistit.exception.CorruptJournalException

com.persistit.JournalManager

com.persistit.JournalTool

com.persistit.JournalTool$SimpleDumpAction

com.persistit.RecoveryManager

com.persistit.TransactionPlayer

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