Examples with HoleFillRequiredException org.corfudb.runtime.exceptions.HoleFillRequiredException used on opensource projects

Example 1 with HoleFillRequiredException

use of org.corfudb.runtime.exceptions.HoleFillRequiredException in project CorfuDB by CorfuDB.

the class QuorumReplicationProtocol method recoveryWrite.

private boolean recoveryWrite(Layout layout, ILogData logData) {
    long address = logData.getGlobalAddress();
    log.debug("Recovery write at {} " + address);
    Holder<ILogData> dh = new Holder<>(logData);
    AtomicBoolean otherValueAdopted = new AtomicBoolean(false);
    AtomicInteger retryCount = new AtomicInteger(0);
    if (logData.getRank() == null) {
        logData.setRank(new IMetadata.DataRank(0));
    }
    try {
        IRetry.build(ExponentialBackoffRetry.class, () -> {
            QuorumFuturesFactory.CompositeFuture<Boolean> future = null;
            try {
                log.debug("Recovery write loop for " + log);
                // increment the rank
                dh.getRef().releaseBuffer();
                dh.getRef().setRank(dh.getRef().getRank().buildHigherRank());
                // peek for existing
                if (retryCount.getAndIncrement() > 0) {
                    try {
                        return holeFillPolicy.peekUntilHoleFillRequired(address, a -> peek(layout, a));
                    } catch (HoleFillRequiredException e) {
                        log.debug(e.getMessage(), e);
                    // continuing
                    }
                }
                // phase 1
                try (ILogData.SerializationHandle ph1 = createEmptyData(dh.getRef().getGlobalAddress(), DataType.RANK_ONLY, dh.getRef().getRank())) {
                    future = getWriteFuture(layout, ph1.getSerialized());
                    CFUtils.getUninterruptibly(future, QuorumUnreachableException.class, OverwriteException.class, DataOutrankedException.class);
                } catch (LogUnitException | QuorumUnreachableException e) {
                    e.printStackTrace();
                    ReadResponse rr = getAdoptedValueWithHighestRankIfPresent(address, future.getThrowables());
                    if (rr != null) {
                        // check
                        LogData logDataExisting = rr.getReadSet().get(address);
                        logDataExisting.releaseBuffer();
                        logDataExisting.setRank(dh.getRef().getRank());
                        dh.setRef(logDataExisting.getSerializedForm().getSerialized());
                        otherValueAdopted.set(true);
                    // value adopted - continue on phase 2
                    } else {
                        throw e;
                    }
                }
                // phase 2 - only if exception is not thrown from phase 1
                future = getWriteFuture(layout, dh.getRef());
                CFUtils.getUninterruptibly(future, QuorumUnreachableException.class, OverwriteException.class, DataOutrankedException.class);
                log.trace("Write done[{}]: {}", address);
                return dh.getRef();
            } catch (QuorumUnreachableException | DataOutrankedException e) {
                e.printStackTrace();
                throw new RetryNeededException();
            } catch (RuntimeException e) {
                e.printStackTrace();
                throw e;
            }
        }).setOptions(WRITE_RETRY_SETTINGS).run();
        return otherValueAdopted.get();
    } catch (InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new RuntimeException("interrupted", e);
    } catch (RuntimeException e) {
        throw e;
    }
}

Example 2 with HoleFillRequiredException

use of org.corfudb.runtime.exceptions.HoleFillRequiredException in project CorfuDB by CorfuDB.

the class ReadWaitHoleFillPolicy method peekUntilHoleFillRequired.

/** {@inheritDoc} */
@Nonnull
@Override
public ILogData peekUntilHoleFillRequired(long address, Function<Long, ILogData> peekFunction) throws HoleFillRequiredException {
    int tryNum = 0;
    do {
        // If this is not the first try, sleep before trying again
        if (tryNum != 0) {
            try {
                Thread.sleep(waitMs);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        }
        // Try the read
        ILogData data = peekFunction.apply(address);
        // If it was not null, we can return it.
        if (data != null) {
            return data;
        }
        // Otherwise increment the counter and try again.
        tryNum++;
    } while (numRetries > tryNum);
    throw new HoleFillRequiredException("No data after " + tryNum + " retries");
}