/** @return {@code true} if no keys are tracked, {@code false} otherwise. */
public final boolean isEmpty() {
return tracker.isEmpty();
}
public void cleanupCompletedTransactions() {
if (completedTransactions.isEmpty()) return;
try {
if (trace)
log.tracef(
"About to cleanup completed transaction. Initial size is %d",
completedTransactions.size());
long beginning = timeService.time();
long minCompleteTimestamp =
timeService.time()
- TimeUnit.MILLISECONDS.toNanos(configuration.transaction().completedTxTimeout());
int removedEntries = 0;
// Collect the leavers. They will be removed at the end.
Set<Address> leavers = new HashSet<>();
for (Map.Entry<Address, Long> e : nodeMaxPrunedTxIds.entrySet()) {
if (!rpcManager.getMembers().contains(e.getKey())) {
leavers.add(e.getKey());
}
}
// Remove stale completed transactions.
Iterator<Map.Entry<GlobalTransaction, CompletedTransactionInfo>> txIterator =
completedTransactions.entrySet().iterator();
while (txIterator.hasNext()) {
Map.Entry<GlobalTransaction, CompletedTransactionInfo> e = txIterator.next();
CompletedTransactionInfo completedTx = e.getValue();
if (minCompleteTimestamp - completedTx.timestamp > 0) {
// Need to update lastPrunedTxId *before* removing the tx from the map
// Don't need atomic operations, there can't be more than one thread updating
// lastPrunedTxId.
final long txId = e.getKey().getId();
final Address address = e.getKey().getAddress();
updateLastPrunedTxId(txId, address);
txIterator.remove();
removedEntries++;
} else {
// Nodes with "active" completed transactions are not removed..
leavers.remove(e.getKey().getAddress());
}
}
// Finally, remove nodes that are no longer members and don't have any "active" completed
// transactions.
for (Address e : leavers) {
nodeMaxPrunedTxIds.remove(e);
}
long duration = timeService.timeDuration(beginning, TimeUnit.MILLISECONDS);
if (trace)
log.tracef(
"Finished cleaning up completed transactions in %d millis, %d transactions were removed, "
+ "current number of completed transactions is %d",
removedEntries, duration, completedTransactions.size());
if (trace)
log.tracef(
"Last pruned transaction ids were updated: %d, %s",
globalMaxPrunedTxId, nodeMaxPrunedTxIds);
} catch (Exception e) {
log.errorf(e, "Failed to cleanup completed transactions: %s", e.getMessage());
}
}