/** {@inheritDoc} */
@Override
public void printMemoryStats(int threshold) {
X.println(
">>> Cache partition topology stats [grid="
+ cctx.gridName()
+ ", cache="
+ cctx.name()
+ ']');
for (GridDhtLocalPartition part : locParts.values()) {
int size = part.size();
if (size >= threshold)
X.println(">>> Local partition [part=" + part.id() + ", size=" + size + ']');
}
}
/** {@inheritDoc} */
@Override
public void onEvicted(GridDhtLocalPartition part, boolean updateSeq) {
assert updateSeq || lock.isWriteLockedByCurrentThread();
lock.writeLock().lock();
try {
if (stopping) return;
assert part.state() == EVICTED;
long seq = updateSeq ? this.updateSeq.incrementAndGet() : this.updateSeq.get();
updateLocal(part.id(), cctx.localNodeId(), part.state(), seq);
consistencyCheck();
} finally {
lock.writeLock().unlock();
}
}
/** {@inheritDoc} */
@Override
public boolean own(GridDhtLocalPartition part) {
ClusterNode loc = cctx.localNode();
lock.writeLock().lock();
try {
if (part.own()) {
updateLocal(part.id(), loc.id(), part.state(), updateSeq.incrementAndGet());
consistencyCheck();
return true;
}
consistencyCheck();
return false;
} finally {
lock.writeLock().unlock();
}
}
/**
* @param updateSeq Update sequence.
* @return Checks if any of the local partitions need to be evicted.
*/
private boolean checkEvictions(long updateSeq) {
assert lock.isWriteLockedByCurrentThread();
boolean changed = false;
UUID locId = cctx.nodeId();
for (GridDhtLocalPartition part : locParts.values()) {
GridDhtPartitionState state = part.state();
if (state.active()) {
int p = part.id();
List<ClusterNode> affNodes = cctx.affinity().nodes(p, topVer);
if (!affNodes.contains(cctx.localNode())) {
Collection<UUID> nodeIds = F.nodeIds(nodes(p, topVer, OWNING));
// If all affinity nodes are owners, then evict partition from local node.
if (nodeIds.containsAll(F.nodeIds(affNodes))) {
part.rent(false);
updateLocal(part.id(), locId, part.state(), updateSeq);
changed = true;
if (log.isDebugEnabled())
log.debug("Evicted local partition (all affinity nodes are owners): " + part);
} else {
int ownerCnt = nodeIds.size();
int affCnt = affNodes.size();
if (ownerCnt > affCnt) {
List<ClusterNode> sorted = new ArrayList<>(cctx.discovery().nodes(nodeIds));
// Sort by node orders in ascending order.
Collections.sort(sorted, CU.nodeComparator(true));
int diff = sorted.size() - affCnt;
for (int i = 0; i < diff; i++) {
ClusterNode n = sorted.get(i);
if (locId.equals(n.id())) {
part.rent(false);
updateLocal(part.id(), locId, part.state(), updateSeq);
changed = true;
if (log.isDebugEnabled())
log.debug(
"Evicted local partition (this node is oldest non-affinity node): " + part);
break;
}
}
}
}
}
}
}
return changed;
}