/**
* This method has poor performance, so use with care. It is currently only used by {@code DGC}.
*
* @return Remote candidates.
*/
public Collection<GridCacheMvccCandidate> remoteCandidates() {
Collection<GridCacheMvccCandidate> rmtCands = new LinkedList<>();
for (GridDistributedCacheEntry entry : locked()) rmtCands.addAll(entry.remoteMvccSnapshot());
return rmtCands;
}
/**
* This method has poor performance, so use with care. It is currently only used by {@code DGC}.
*
* @return Local candidates.
*/
public Collection<GridCacheMvccCandidate> localCandidates() {
Collection<GridCacheMvccCandidate> locCands = new LinkedList<>();
for (GridDistributedCacheEntry entry : locked()) {
try {
locCands.addAll(entry.localCandidates());
} catch (GridCacheEntryRemovedException ignore) {
// No-op.
}
}
return locCands;
}
/**
* @param leftNodeId Left node ID.
* @param topVer Topology version.
*/
public void removeExplicitNodeLocks(UUID leftNodeId, AffinityTopologyVersion topVer) {
for (GridDistributedCacheEntry entry : locked()) {
try {
entry.removeExplicitNodeLocks(leftNodeId);
entry.context().evicts().touch(entry, topVer);
} catch (GridCacheEntryRemovedException ignore) {
if (log.isDebugEnabled())
log.debug(
"Attempted to remove node locks from removed entry in mvcc manager "
+ "disco callback (will ignore): "
+ entry);
}
}
}
/**
* @param entries Entries.
* @param dhtVer DHT version.
* @param pendingVers Pending versions.
* @param committedVers Committed versions.
* @param rolledbackVers Rolled back versions.
*/
void readyNearLocks(
Collection<IgniteTxEntry> entries,
GridCacheVersion dhtVer,
Collection<GridCacheVersion> pendingVers,
Collection<GridCacheVersion> committedVers,
Collection<GridCacheVersion> rolledbackVers) {
for (IgniteTxEntry txEntry : entries) {
while (true) {
GridCacheContext cacheCtx = txEntry.cached().context();
assert cacheCtx.isNear();
GridDistributedCacheEntry entry = (GridDistributedCacheEntry) txEntry.cached();
try {
// Handle explicit locks.
GridCacheVersion explicit = txEntry.explicitVersion();
if (explicit == null) {
entry.readyNearLock(xidVer, dhtVer, committedVers, rolledbackVers, pendingVers);
}
break;
} catch (GridCacheEntryRemovedException ignored) {
assert entry.obsoleteVersion() != null;
if (log.isDebugEnabled())
log.debug(
"Replacing obsolete entry in remote transaction [entry="
+ entry
+ ", tx="
+ this
+ ']');
// Replace the entry.
txEntry.cached(txEntry.context().cache().entryEx(txEntry.key()));
}
}
}
}
/** {@inheritDoc} */
@Override
public void onFreed(GridDistributedCacheEntry entry) {
if (entry.isNear()) nearLocked.remove(entry.txKey());
else locked.remove(entry.txKey());
}
/** {@inheritDoc} */
@Override
public void onLocked(GridDistributedCacheEntry entry) {
if (entry.isNear()) nearLocked.put(entry.txKey(), entry);
else locked.put(entry.txKey(), entry);
}