/** @return Nodes to execute on. */
private Collection<GridNode> nodes() {
GridCacheMode cacheMode = cctx.config().getCacheMode();
switch (cacheMode) {
case LOCAL:
if (prj != null)
U.warn(
log,
"Ignoring query projection because it's executed over LOCAL cache "
+ "(only local node will be queried): "
+ this);
return Collections.singletonList(cctx.localNode());
case REPLICATED:
if (prj != null) return nodes(cctx, prj);
GridCacheDistributionMode mode = cctx.config().getDistributionMode();
return mode == PARTITIONED_ONLY || mode == NEAR_PARTITIONED
? Collections.singletonList(cctx.localNode())
: Collections.singletonList(F.rand(nodes(cctx, null)));
case PARTITIONED:
return nodes(cctx, prj);
default:
throw new IllegalStateException("Unknown cache distribution mode: " + cacheMode);
}
}
/**
* @param cctx Context.
* @param id Partition ID.
*/
@SuppressWarnings("ExternalizableWithoutPublicNoArgConstructor")
GridDhtLocalPartition(GridCacheContext cctx, int id) {
assert cctx != null;
this.id = id;
this.cctx = cctx;
log = U.logger(cctx.kernalContext(), logRef, this);
rent =
new GridFutureAdapter<Object>() {
@Override
public String toString() {
return "PartitionRentFuture [part=" + GridDhtLocalPartition.this + ", map=" + map + ']';
}
};
map = new ConcurrentHashMap8<>(cctx.config().getStartSize() / cctx.affinity().partitions());
int delQueueSize =
CU.isSystemCache(cctx.name())
? 100
: Math.max(MAX_DELETE_QUEUE_SIZE / cctx.affinity().partitions(), 20);
rmvQueue = new GridCircularBuffer<>(U.ceilPow2(delQueueSize));
}
/**
* @param updateSeq Update sequence.
* @return {@code True} if entry has been transitioned to state EVICTED.
*/
boolean tryEvict(boolean updateSeq) {
if (state.getReference() != RENTING || state.getStamp() != 0 || groupReserved()) return false;
// Attempt to evict partition entries from cache.
clearAll();
if (map.isEmpty() && state.compareAndSet(RENTING, EVICTED, 0, 0)) {
if (log.isDebugEnabled()) log.debug("Evicted partition: " + this);
if (!GridQueryProcessor.isEnabled(cctx.config())) clearSwap();
if (cctx.isDrEnabled()) cctx.dr().partitionEvicted(id);
cctx.dataStructures().onPartitionEvicted(id);
rent.onDone();
((GridDhtPreloader) cctx.preloader()).onPartitionEvicted(this, updateSeq);
clearDeferredDeletes();
return true;
}
return false;
}
/**
* @param updateSeq Update sequence.
* @return Future for evict attempt.
*/
IgniteInternalFuture<Boolean> tryEvictAsync(boolean updateSeq) {
if (map.isEmpty()
&& !GridQueryProcessor.isEnabled(cctx.config())
&& state.compareAndSet(RENTING, EVICTED, 0, 0)) {
if (log.isDebugEnabled()) log.debug("Evicted partition: " + this);
clearSwap();
if (cctx.isDrEnabled()) cctx.dr().partitionEvicted(id);
cctx.dataStructures().onPartitionEvicted(id);
rent.onDone();
((GridDhtPreloader) cctx.preloader()).onPartitionEvicted(this, updateSeq);
clearDeferredDeletes();
return new GridFinishedFuture<>(true);
}
return cctx.closures()
.callLocalSafe(
new GPC<Boolean>() {
@Override
public Boolean call() {
return tryEvict(true);
}
}, /*system pool*/
true);
}
/** @return Nodes to execute on. */
private Collection<ClusterNode> nodes() {
CacheMode cacheMode = cctx.config().getCacheMode();
switch (cacheMode) {
case LOCAL:
if (prj != null)
U.warn(
log,
"Ignoring query projection because it's executed over LOCAL cache "
+ "(only local node will be queried): "
+ this);
return Collections.singletonList(cctx.localNode());
case REPLICATED:
if (prj != null || partition() != null) return nodes(cctx, prj, partition());
return cctx.affinityNode()
? Collections.singletonList(cctx.localNode())
: Collections.singletonList(F.rand(nodes(cctx, null, partition())));
case PARTITIONED:
return nodes(cctx, prj, partition());
default:
throw new IllegalStateException("Unknown cache distribution mode: " + cacheMode);
}
}
/** Clears swap entries for evicted partition. */
private void clearSwap() {
assert state() == EVICTED;
assert !GridQueryProcessor.isEnabled(cctx.config())
: "Indexing needs to have unswapped values.";
try {
GridCloseableIterator<Map.Entry<byte[], GridCacheSwapEntry>> it = cctx.swap().iterator(id);
boolean isLocStore = cctx.store().isLocal();
if (it != null) {
// We can safely remove these values because no entries will be created for evicted
// partition.
while (it.hasNext()) {
Map.Entry<byte[], GridCacheSwapEntry> entry = it.next();
byte[] keyBytes = entry.getKey();
KeyCacheObject key = cctx.toCacheKeyObject(keyBytes);
cctx.swap().remove(key);
if (isLocStore) cctx.store().remove(null, key.value(cctx.cacheObjectContext(), false));
}
}
} catch (IgniteCheckedException e) {
U.error(log, "Failed to clear swap for evicted partition: " + this, e);
}
}
/** {@inheritDoc} */
@Override
public boolean onDone(AffinityTopologyVersion res, Throwable err) {
Map<Integer, Boolean> m = null;
for (GridCacheContext cacheCtx : cctx.cacheContexts()) {
if (cacheCtx.config().getTopologyValidator() != null && !CU.isSystemCache(cacheCtx.name())) {
if (m == null) m = new HashMap<>();
m.put(
cacheCtx.cacheId(),
cacheCtx.config().getTopologyValidator().validate(discoEvt.topologyNodes()));
}
}
cacheValidRes = m != null ? m : Collections.<Integer, Boolean>emptyMap();
cctx.cache().onExchangeDone(exchId.topologyVersion(), reqs, err);
cctx.exchange().onExchangeDone(this, err);
if (super.onDone(res, err) && !dummy && !forcePreload) {
if (log.isDebugEnabled())
log.debug(
"Completed partition exchange [localNode="
+ cctx.localNodeId()
+ ", exchange= "
+ this
+ ']');
initFut.onDone(err == null);
GridTimeoutObject timeoutObj = this.timeoutObj;
// Deschedule timeout object.
if (timeoutObj != null) cctx.kernalContext().timeout().removeTimeoutObject(timeoutObj);
if (exchId.isLeft()) {
for (GridCacheContext cacheCtx : cctx.cacheContexts())
cacheCtx.config().getAffinity().removeNode(exchId.nodeId());
}
return true;
}
return dummy;
}
/**
* @param cacheCtx Cache context.
* @return {@code True} if local node can calculate affinity on it's own for this partition map
* exchange.
*/
private boolean canCalculateAffinity(GridCacheContext cacheCtx) {
AffinityFunction affFunc = cacheCtx.config().getAffinity();
// Do not request affinity from remote nodes if affinity function is not centralized.
if (!U.hasAnnotation(affFunc, AffinityCentralizedFunction.class)) return true;
// If local node did not initiate exchange or local node is the only cache node in grid.
Collection<ClusterNode> affNodes = CU.affinityNodes(cacheCtx, exchId.topologyVersion());
return !exchId.nodeId().equals(cctx.localNodeId())
|| (affNodes.size() == 1 && affNodes.contains(cctx.localNode()));
}
/**
* Default constructor.
*
* @param name Sequence name.
* @param key Sequence key.
* @param seqView Sequence projection.
* @param ctx CacheContext.
* @param locVal Local counter.
* @param upBound Upper bound.
*/
public GridCacheAtomicSequenceImpl(
String name,
GridCacheInternalStorableKey key,
GridCacheProjection<GridCacheInternalStorableKey, GridCacheAtomicSequenceValue> seqView,
GridCacheContext ctx,
long locVal,
long upBound) {
assert key != null;
assert seqView != null;
assert ctx != null;
assert locVal <= upBound;
batchSize = ctx.config().getAtomicSequenceReserveSize();
this.ctx = ctx;
this.key = key;
this.seqView = seqView;
this.upBound = upBound;
this.locVal = locVal;
this.name = name;
log = ctx.gridConfig().getGridLogger().getLogger(getClass());
}
/** {@inheritDoc} */
@Override
public boolean isCacheTopologyValid(GridCacheContext cctx) {
return cctx.config().getTopologyValidator() != null && cacheValidRes.containsKey(cctx.cacheId())
? cacheValidRes.get(cctx.cacheId())
: true;
}
/** @param ctx Context. */
public GridNearCache(GridCacheContext<K, V> ctx) {
super(ctx, ctx.config().getNearStartSize());
}
/** @param ctx Cache registry. */
public GridLocalCache(GridCacheContext<K, V> ctx) {
super(ctx, ctx.config().getStartSize());
preldr = new GridCachePreloaderAdapter<K, V>(ctx);
}
/** Clears values for this partition. */
private void clearAll() {
GridCacheVersion clearVer = cctx.versions().next();
boolean swap = cctx.isSwapOrOffheapEnabled();
boolean rec = cctx.events().isRecordable(EVT_CACHE_REBALANCE_OBJECT_UNLOADED);
Iterator<GridDhtCacheEntry> it = map.values().iterator();
GridCloseableIterator<Map.Entry<byte[], GridCacheSwapEntry>> swapIt = null;
if (swap
&& GridQueryProcessor.isEnabled(cctx.config())) { // Indexing needs to unswap cache values.
Iterator<GridDhtCacheEntry> unswapIt = null;
try {
swapIt = cctx.swap().iterator(id);
unswapIt = unswapIterator(swapIt);
} catch (Exception e) {
U.error(log, "Failed to clear swap for evicted partition: " + this, e);
}
if (unswapIt != null) it = F.concat(it, unswapIt);
}
try {
while (it.hasNext()) {
GridDhtCacheEntry cached = it.next();
try {
if (cached.clearInternal(clearVer, swap)) {
map.remove(cached.key(), cached);
if (!cached.isInternal()) {
mapPubSize.decrement();
if (rec)
cctx.events()
.addEvent(
cached.partition(),
cached.key(),
cctx.localNodeId(),
(IgniteUuid) null,
null,
EVT_CACHE_REBALANCE_OBJECT_UNLOADED,
null,
false,
cached.rawGet(),
cached.hasValue(),
null,
null,
null);
}
}
} catch (IgniteCheckedException e) {
U.error(log, "Failed to clear cache entry for evicted partition: " + cached, e);
}
}
} finally {
U.close(swapIt, log);
}
}
/** @throws GridException If query is invalid. */
public void validate() throws GridException {
if (type != SCAN && !cctx.config().isQueryIndexEnabled())
throw new GridException("Indexing is disabled for cache: " + cctx.cache().name());
}
/** @param ctx Cache registry. */
public GridReplicatedCache(GridCacheContext<K, V> ctx) {
super(ctx, ctx.config().getStartSize());
}
/** @throws IgniteCheckedException If query is invalid. */
public void validate() throws IgniteCheckedException {
if ((type != SCAN && type != SET) && !GridQueryProcessor.isEnabled(cctx.config()))
throw new IgniteCheckedException("Indexing is disabled for cache: " + cctx.cache().name());
}
/** {@inheritDoc} */
@Override
public void execute(@Nullable GridProjection prj) throws GridException {
if (cb == null)
throw new IllegalStateException("Mandatory local callback is not set for the query: " + this);
if (prj == null) prj = ctx.grid();
prj = prj.forCache(ctx.name());
if (prj.nodes().isEmpty())
throw new GridTopologyException("Failed to execute query (projection is empty): " + this);
GridCacheMode mode = ctx.config().getCacheMode();
if (mode == LOCAL || mode == REPLICATED) {
Collection<GridNode> nodes = prj.nodes();
GridNode node = nodes.contains(ctx.localNode()) ? ctx.localNode() : F.rand(nodes);
assert node != null;
if (nodes.size() > 1 && !ctx.cache().isDrSystemCache()) {
if (node.id().equals(ctx.localNodeId()))
U.warn(
log,
"Continuous query for "
+ mode
+ " cache can be run only on local node. "
+ "Will execute query locally: "
+ this);
else
U.warn(
log,
"Continuous query for "
+ mode
+ " cache can be run only on single node. "
+ "Will execute query on remote node [qry="
+ this
+ ", node="
+ node
+ ']');
}
prj = prj.forNode(node);
}
closeLock.lock();
try {
if (routineId != null)
throw new IllegalStateException("Continuous query can't be executed twice.");
guard.block();
GridContinuousHandler hnd =
new GridCacheContinuousQueryHandler<>(ctx.name(), topic, cb, filter, prjPred);
routineId =
ctx.kernalContext()
.continuous()
.startRoutine(hnd, bufSize, timeInterval, autoUnsubscribe, prj.predicate())
.get();
} finally {
closeLock.unlock();
}
}
/** @return Synchronous flag. */
private boolean isSync() {
return cctx.config().getWriteSynchronizationMode()
!= GridCacheWriteSynchronizationMode.FULL_ASYNC;
}
