Examples with Iv2InitiateTaskMessage org.voltdb.messaging.Iv2InitiateTaskMessage used on opensource projects

Example 16 with Iv2InitiateTaskMessage

use of org.voltdb.messaging.Iv2InitiateTaskMessage in project voltdb by VoltDB.

the class SpScheduler method handleIv2InitiateTaskMessageRepair.

private void handleIv2InitiateTaskMessageRepair(List<Long> needsRepair, Iv2InitiateTaskMessage message) {
    if (!message.isSinglePartition()) {
        throw new RuntimeException("SpScheduler.handleIv2InitiateTaskMessageRepair " + "should never receive multi-partition initiations.");
    }
    // set up duplicate counter. expect exactly the responses corresponding
    // to needsRepair. These may, or may not, include the local site.
    // We currently send the final response into the ether, since we don't
    // have the original ClientInterface HSID stored.  It would be more
    // useful to have the original ClienInterface HSId somewhere handy.
    List<Long> expectedHSIds = new ArrayList<Long>(needsRepair);
    DuplicateCounter counter = new DuplicateCounter(HostMessenger.VALHALLA, message.getTxnId(), expectedHSIds, message);
    safeAddToDuplicateCounterMap(new DuplicateCounterKey(message.getTxnId(), message.getSpHandle()), counter);
    m_uniqueIdGenerator.updateMostRecentlyGeneratedUniqueId(message.getUniqueId());
    // is local repair necessary?
    if (needsRepair.contains(m_mailbox.getHSId())) {
        needsRepair.remove(m_mailbox.getHSId());
        // make a copy because handleIv2 non-repair case does?
        Iv2InitiateTaskMessage localWork = new Iv2InitiateTaskMessage(message.getInitiatorHSId(), message.getCoordinatorHSId(), message);
        doLocalInitiateOffer(localWork);
    }
    // is remote repair necessary?
    if (!needsRepair.isEmpty()) {
        Iv2InitiateTaskMessage replmsg = new Iv2InitiateTaskMessage(m_mailbox.getHSId(), m_mailbox.getHSId(), message);
        m_mailbox.send(com.google_voltpatches.common.primitives.Longs.toArray(needsRepair), replmsg);
    }
}

Example 17 with Iv2InitiateTaskMessage

use of org.voltdb.messaging.Iv2InitiateTaskMessage in project voltdb by VoltDB.

the class SpScheduler method deliverReadyTxns.

/**
     * Poll the replay sequencer and process the messages until it returns null
     */
private void deliverReadyTxns() {
    // First, pull all the sequenced messages, if any.
    VoltMessage m = m_replaySequencer.poll();
    while (m != null) {
        deliver(m);
        m = m_replaySequencer.poll();
    }
    // Then, try to pull all the drainable messages, if any.
    m = m_replaySequencer.drain();
    while (m != null) {
        if (m instanceof Iv2InitiateTaskMessage) {
            // Send IGNORED response for all SPs
            Iv2InitiateTaskMessage task = (Iv2InitiateTaskMessage) m;
            final InitiateResponseMessage response = new InitiateResponseMessage(task);
            response.setResults(new ClientResponseImpl(ClientResponse.UNEXPECTED_FAILURE, new VoltTable[0], ClientResponseImpl.IGNORED_TRANSACTION));
            m_mailbox.send(response.getInitiatorHSId(), response);
        }
        m = m_replaySequencer.drain();
    }
}

Example 18 with Iv2InitiateTaskMessage

use of org.voltdb.messaging.Iv2InitiateTaskMessage in project voltdb by VoltDB.

the class MpScheduler method handleIv2InitiateTaskMessageRepair.

private void handleIv2InitiateTaskMessageRepair(List<Long> needsRepair, Iv2InitiateTaskMessage message) {
    // just reforward the Iv2InitiateTaskMessage for the txn being restarted
    // this copy may be unnecessary
    final String procedureName = message.getStoredProcedureName();
    Iv2InitiateTaskMessage mp = new Iv2InitiateTaskMessage(message.getInitiatorHSId(), message.getCoordinatorHSId(), message.getTruncationHandle(), message.getTxnId(), message.getUniqueId(), message.isReadOnly(), message.isSinglePartition(), message.getStoredProcedureInvocation(), message.getClientInterfaceHandle(), message.getConnectionId(), message.isForReplay());
    m_uniqueIdGenerator.updateMostRecentlyGeneratedUniqueId(message.getUniqueId());
    // Multi-partition initiation (at the MPI)
    MpProcedureTask task = null;
    if (isNpTxn(message) && NpProcedureTaskConstructor != null) {
        Set<Integer> involvedPartitions = getBalancePartitions(message);
        if (involvedPartitions != null) {
            HashMap<Integer, Long> involvedPartitionMasters = Maps.newHashMap(m_partitionMasters);
            involvedPartitionMasters.keySet().retainAll(involvedPartitions);
            task = instantiateNpProcedureTask(m_mailbox, procedureName, m_pendingTasks, mp, involvedPartitionMasters, m_buddyHSIds.get(m_nextBuddy), true);
        }
    // if cannot figure out the involved partitions, run it as an MP txn
    }
    if (task == null) {
        task = new MpProcedureTask(m_mailbox, procedureName, m_pendingTasks, mp, m_iv2Masters, m_partitionMasters, m_buddyHSIds.get(m_nextBuddy), true);
    }
    m_nextBuddy = (m_nextBuddy++) % m_buddyHSIds.size();
    m_outstandingTxns.put(task.m_txnState.txnId, task.m_txnState);
    m_pendingTasks.offer(task);
}

Example 19 with Iv2InitiateTaskMessage

use of org.voltdb.messaging.Iv2InitiateTaskMessage in project voltdb by VoltDB.

the class MpInitiator method acceptPromotion.

@Override
public void acceptPromotion() {
    try {
        long startTime = System.currentTimeMillis();
        Boolean success = false;
        m_term = createTerm(m_messenger.getZK(), m_partitionId, getInitiatorHSId(), m_initiatorMailbox, m_whoami);
        m_term.start();
        while (!success) {
            final RepairAlgo repair = m_initiatorMailbox.constructRepairAlgo(m_term.getInterestingHSIds(), m_whoami);
            // term syslogs the start of leader promotion.
            long txnid = Long.MIN_VALUE;
            try {
                RepairResult res = repair.start().get();
                txnid = res.m_txnId;
                success = true;
            } catch (CancellationException e) {
                success = false;
            }
            if (success) {
                m_initiatorMailbox.setLeaderState(txnid);
                List<Iv2InitiateTaskMessage> restartTxns = ((MpPromoteAlgo) repair).getInterruptedTxns();
                if (!restartTxns.isEmpty()) {
                    // Should only be one restarting MP txn
                    if (restartTxns.size() > 1) {
                        tmLog.fatal("Detected a fatal condition while repairing multipartition transactions " + "following a cluster topology change.");
                        tmLog.fatal("The MPI found multiple transactions requiring restart: ");
                        for (Iv2InitiateTaskMessage txn : restartTxns) {
                            tmLog.fatal("Restart candidate: " + txn);
                        }
                        tmLog.fatal("This node will fail.  Please contact VoltDB support with your cluster's " + "log files.");
                        m_initiatorMailbox.send(com.google_voltpatches.common.primitives.Longs.toArray(m_term.getInterestingHSIds().get()), new DumpMessage());
                        throw new RuntimeException("Failing promoted MPI node with unresolvable repair condition.");
                    }
                    tmLog.debug(m_whoami + " restarting MP transaction: " + restartTxns.get(0));
                    m_initiatorMailbox.repairReplicasWith(null, restartTxns.get(0));
                }
                tmLog.info(m_whoami + "finished leader promotion. Took " + (System.currentTimeMillis() - startTime) + " ms.");
                // THIS IS where map cache should be updated, not
                // in the promotion algorithm.
                LeaderCacheWriter iv2masters = new LeaderCache(m_messenger.getZK(), m_zkMailboxNode);
                iv2masters.put(m_partitionId, m_initiatorMailbox.getHSId());
            } else {
                // The only known reason to fail is a failed replica during
                // recovery; that's a bounded event (by k-safety).
                // CrashVoltDB here means one node failure causing another.
                // Don't create a cascading failure - just try again.
                tmLog.info(m_whoami + "interrupted during leader promotion after " + (System.currentTimeMillis() - startTime) + " ms. of " + "trying. Retrying.");
            }
        }
    } catch (Exception e) {
        VoltDB.crashLocalVoltDB("Terminally failed leader promotion.", true, e);
    }
}

Example 20 with Iv2InitiateTaskMessage

use of org.voltdb.messaging.Iv2InitiateTaskMessage in project voltdb by VoltDB.

the class TestSpPromoteAlgo method makeStaleResponse.

Iv2RepairLogResponseMessage makeStaleResponse(long spHandle, long requestId) {
    Iv2RepairLogResponseMessage m = makeResponse(spHandle);
    when(m.getRequestId()).thenReturn(requestId);
    Iv2InitiateTaskMessage im = mock(Iv2InitiateTaskMessage.class);
    when(m.getPayload()).thenReturn(im);
    return m;
}