Examples with PartitionLossPolicy org.apache.ignite.cache.PartitionLossPolicy used on opensource projects

Example 1 with PartitionLossPolicy

use of org.apache.ignite.cache.PartitionLossPolicy in project ignite by apache.

the class GridDhtPartitionsExchangeFuture method validateCache.

/** {@inheritDoc} */
@Nullable
@Override
public Throwable validateCache(GridCacheContext cctx, boolean recovery, boolean read, @Nullable Object key, @Nullable Collection<?> keys) {
    assert isDone() : this;
    Throwable err = error();
    if (err != null)
        return err;
    if (!cctx.shared().kernalContext().state().active())
        return new CacheInvalidStateException("Failed to perform cache operation (cluster is not activated): " + cctx.name());
    PartitionLossPolicy partLossPlc = cctx.config().getPartitionLossPolicy();
    if (cctx.needsRecovery() && !recovery) {
        if (!read && (partLossPlc == READ_ONLY_SAFE || partLossPlc == READ_ONLY_ALL))
            return new IgniteCheckedException("Failed to write to cache (cache is moved to a read-only state): " + cctx.name());
    }
    if (cctx.needsRecovery() || cctx.config().getTopologyValidator() != null) {
        CacheValidation validation = cacheValidRes.get(cctx.cacheId());
        if (validation == null)
            return null;
        if (!validation.valid && !read)
            return new IgniteCheckedException("Failed to perform cache operation " + "(cache topology is not valid): " + cctx.name());
        if (recovery || !cctx.needsRecovery())
            return null;
        if (key != null) {
            int p = cctx.affinity().partition(key);
            CacheInvalidStateException ex = validatePartitionOperation(cctx.name(), read, key, p, validation.lostParts, partLossPlc);
            if (ex != null)
                return ex;
        }
        if (keys != null) {
            for (Object k : keys) {
                int p = cctx.affinity().partition(k);
                CacheInvalidStateException ex = validatePartitionOperation(cctx.name(), read, k, p, validation.lostParts, partLossPlc);
                if (ex != null)
                    return ex;
            }
        }
    }
    return null;
}

Example 2 with PartitionLossPolicy

use of org.apache.ignite.cache.PartitionLossPolicy in project ignite by apache.

the class GridDhtPartitionTopologyImpl method detectLostPartitions.

/** {@inheritDoc} */
@Override
public boolean detectLostPartitions(DiscoveryEvent discoEvt) {
    lock.writeLock().lock();
    try {
        int parts = cctx.affinity().partitions();
        Collection<Integer> lost = null;
        for (int p = 0; p < parts; p++) {
            boolean foundOwner = false;
            Set<UUID> nodeIds = part2node.get(p);
            if (nodeIds != null) {
                for (UUID nodeId : nodeIds) {
                    GridDhtPartitionMap partMap = node2part.get(nodeId);
                    GridDhtPartitionState state = partMap.get(p);
                    if (state == OWNING) {
                        foundOwner = true;
                        break;
                    }
                }
            }
            if (!foundOwner) {
                if (lost == null)
                    lost = new HashSet<>(parts - p, 1.0f);
                lost.add(p);
            }
        }
        boolean changed = false;
        if (lost != null) {
            PartitionLossPolicy plc = cctx.config().getPartitionLossPolicy();
            assert plc != null;
            // Update partition state on all nodes.
            for (Integer part : lost) {
                long updSeq = updateSeq.incrementAndGet();
                GridDhtLocalPartition locPart = localPartition(part, topVer, false);
                if (locPart != null) {
                    boolean marked = plc == PartitionLossPolicy.IGNORE ? locPart.own() : locPart.markLost();
                    if (marked)
                        updateLocal(locPart.id(), locPart.state(), updSeq);
                    changed |= marked;
                } else // Update map for remote node.
                if (plc != PartitionLossPolicy.IGNORE) {
                    Set<UUID> nodeIds = part2node.get(part);
                    if (nodeIds != null) {
                        for (UUID nodeId : nodeIds) {
                            GridDhtPartitionMap nodeMap = node2part.get(nodeId);
                            if (nodeMap.get(part) != EVICTED)
                                nodeMap.put(part, LOST);
                        }
                    }
                }
                if (cctx.events().isRecordable(EventType.EVT_CACHE_REBALANCE_PART_DATA_LOST))
                    cctx.events().addPreloadEvent(part, EVT_CACHE_REBALANCE_PART_DATA_LOST, discoEvt.eventNode(), discoEvt.type(), discoEvt.timestamp());
            }
            if (plc != PartitionLossPolicy.IGNORE)
                cctx.needsRecovery(true);
        }
        return changed;
    } finally {
        lock.writeLock().unlock();
    }
}