/**
* Waits for renting partitions.
*
* @return {@code True} if mapping was changed.
* @throws IgniteCheckedException If failed.
*/
private boolean waitForRent() throws IgniteCheckedException {
boolean changed = false;
// Synchronously wait for all renting partitions to complete.
for (Iterator<GridDhtLocalPartition> it = locParts.values().iterator(); it.hasNext(); ) {
GridDhtLocalPartition p = it.next();
GridDhtPartitionState state = p.state();
if (state == RENTING || state == EVICTED) {
if (log.isDebugEnabled()) log.debug("Waiting for renting partition: " + p);
// Wait for partition to empty out.
p.rent(true).get();
if (log.isDebugEnabled()) log.debug("Finished waiting for renting partition: " + p);
// Remove evicted partition.
it.remove();
changed = true;
}
}
return changed;
}
/** {@inheritDoc} */
@Override
void onCancelAtStop() {
super.onCancelAtStop();
for (GridCacheQueryFutureAdapter fut : futs.values())
try {
fut.cancel();
} catch (IgniteCheckedException e) {
U.error(log, "Failed to cancel running query future: " + fut, e);
}
U.interrupt(threads.values());
}
/** {@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 Collection<GridDhtLocalPartition> currentLocalPartitions() {
return locParts.values();
}
/** {@inheritDoc} */
@Override
public List<GridDhtLocalPartition> localPartitions() {
return new LinkedList<>(locParts.values());
}
/**
* @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;
}