Examples with CommitFailedException org.apache.jackrabbit.oak.api.CommitFailedException used on opensource projects

Example 66 with CommitFailedException

use of org.apache.jackrabbit.oak.api.CommitFailedException in project jackrabbit-oak by apache.

the class DocumentNodeStoreBranch method acquireMergeLock.

/**
     * Acquires the merge lock either exclusive or shared.
     *
     * @param exclusive whether to acquire the merge lock exclusive.
     * @return the acquired merge lock or {@code null} if the operation timed
     * out.
     * @throws CommitFailedException if the current thread is interrupted while
     *                               acquiring the lock
     */
@CheckForNull
private Lock acquireMergeLock(boolean exclusive) throws CommitFailedException {
    final long start = perfLogger.start();
    Lock lock;
    if (exclusive) {
        lock = mergeLock.writeLock();
    } else {
        lock = mergeLock.readLock();
    }
    boolean acquired;
    try {
        acquired = lock.tryLock(maxLockTryTimeMS, MILLISECONDS);
    } catch (InterruptedException e) {
        throw new CommitFailedException(OAK, 1, "Unable to acquire merge lock", e);
    }
    String mode = exclusive ? "exclusive" : "shared";
    if (acquired) {
        perfLogger.end(start, 1, "Merge - Acquired lock ({})", mode);
    } else {
        LOG.info("Time out while acquiring merge lock ({})", mode);
        lock = null;
    }
    return lock;
}

Example 67 with CommitFailedException

use of org.apache.jackrabbit.oak.api.CommitFailedException in project jackrabbit-oak by apache.

the class DocumentNodeStoreBranch method merge0.

@Nonnull
private NodeState merge0(@Nonnull CommitHook hook, @Nonnull CommitInfo info, boolean exclusive) throws CommitFailedException {
    CommitFailedException ex = null;
    Set<Revision> conflictRevisions = new HashSet<Revision>();
    long time = System.currentTimeMillis();
    int numRetries = 0;
    boolean suspended = false;
    for (long backoff = MIN_BACKOFF; backoff <= maximumBackoff; backoff *= 2) {
        if (ex != null) {
            try {
                numRetries++;
                final long start = perfLogger.start();
                // or as a fallback sleep for a while
                if (!conflictRevisions.isEmpty()) {
                    // suspend until conflicting revision is visible
                    LOG.debug("Suspending until {} is visible. Current head {}.", conflictRevisions, store.getHeadRevision());
                    suspended = true;
                    store.suspendUntilAll(conflictRevisions);
                    conflictRevisions.clear();
                    LOG.debug("Resumed. Current head {}.", store.getHeadRevision());
                } else {
                    Thread.sleep(backoff + RANDOM.nextInt((int) Math.min(backoff, Integer.MAX_VALUE)));
                }
                perfLogger.end(start, 1, "Merge - Retry attempt [{}]", numRetries);
            } catch (InterruptedException e) {
                throw new CommitFailedException(MERGE, 3, "Merge interrupted", e);
            }
        }
        try {
            NodeState result = branchState.merge(checkNotNull(hook), checkNotNull(info), exclusive);
            store.getStatsCollector().doneMerge(numRetries, System.currentTimeMillis() - time, suspended, exclusive);
            return result;
        } catch (FailedWithConflictException e) {
            ex = e;
            conflictRevisions.addAll(e.getConflictRevisions());
        } catch (CommitFailedException e) {
            ex = e;
        }
        LOG.trace("Merge Error", ex);
        // by a rebase and running the hook again
        if (!ex.isOfType(MERGE)) {
            throw ex;
        }
    }
    // if we get here retrying failed
    time = System.currentTimeMillis() - time;
    store.getStatsCollector().failedMerge(numRetries, time, suspended, exclusive);
    String msg = ex.getMessage() + " (retries " + numRetries + ", " + time + " ms)";
    throw new CommitFailedException(ex.getSource(), ex.getType(), ex.getCode(), msg, ex.getCause());
}

Example 68 with CommitFailedException

use of org.apache.jackrabbit.oak.api.CommitFailedException in project jackrabbit-oak by apache.

the class ClusterConflictTest method suspendUntilVisible.

private void suspendUntilVisible(boolean withBranch) throws Exception {
    NodeBuilder b1 = ns1.getRoot().builder();
    b1.child("counter").setProperty("value", 0);
    merge(ns1, b1);
    ns1.runBackgroundOperations();
    ns2.runBackgroundOperations();
    b1 = ns1.getRoot().builder();
    b1.child("foo");
    ns1.merge(b1, new TestHook(), EMPTY);
    final List<Exception> exceptions = Lists.newArrayList();
    final NodeBuilder b2 = ns2.getRoot().builder();
    b2.child("bar");
    if (withBranch) {
        purge(b2);
    }
    b2.child("baz");
    Thread t = new Thread(new Runnable() {

        @Override
        public void run() {
            try {
                LOG.info("initiating merge");
                ns2.merge(b2, new TestHook(), EMPTY);
                LOG.info("merge succeeded");
            } catch (CommitFailedException e) {
                exceptions.add(e);
            }
        }
    });
    t.start();
    // wait until t is suspended
    for (int i = 0; i < 100; i++) {
        if (ns2.commitQueue.numSuspendedThreads() > 0) {
            break;
        }
        Thread.sleep(10);
    }
    assertEquals(1, ns2.commitQueue.numSuspendedThreads());
    LOG.info("commit suspended");
    ns1.runBackgroundOperations();
    LOG.info("ran background ops on ns1");
    ns2.runBackgroundOperations();
    LOG.info("ran background ops on ns2");
    assertEquals(0, ns2.commitQueue.numSuspendedThreads());
    t.join(3000);
    assertFalse("Commit did not succeed within 3 seconds", t.isAlive());
    for (Exception e : exceptions) {
        throw e;
    }
}

Example 69 with CommitFailedException

use of org.apache.jackrabbit.oak.api.CommitFailedException in project jackrabbit-oak by apache.

the class ConflictExceptionTest method type.

@Test
public void type() {
    ConflictException e = new ConflictException("conflict");
    CommitFailedException cfe = e.asCommitFailedException();
    assertEquals(CommitFailedException.MERGE, cfe.getType());
}

Example 70 with CommitFailedException

use of org.apache.jackrabbit.oak.api.CommitFailedException in project jackrabbit-oak by apache.

the class ConcurrentReadAndAddTest method addNode.

private void addNode(int i) {
    try {
        NodeBuilder builder = ns.getRoot().builder();
        builder.child("test").child("node-" + i);
        merge(builder);
    } catch (CommitFailedException e) {
        exceptions.add(e);
    }
}