public static void awaitSynchronized() {
if (!isVolatile()) {
return;
} else {
Collection<StackTraceElement> stack = Threads.filteredStack(stackFilter);
String caller = (stack.isEmpty() ? "" : stack.iterator().next().toString());
for (int i = 0; i < MAX_TX_START_SYNC_RETRIES && isVolatile(); i++) {
try {
TimeUnit.MILLISECONDS.sleep(1000);
LOG.debug("Transaction blocked on sync: " + caller);
} catch (InterruptedException ex) {
Exceptions.maybeInterrupted(ex);
return;
}
}
if (isVolatile()) {
throw new DatabaseStateException(
"Transaction begin failed due to concurrent database synchronization: "
+ Hosts.listDatabases()
+ " for caller:\n"
+ Joiner.on("\n\tat ").join(stack));
}
}
}
@Override
public Set<String> get() {
return Sets.newHashSet(
Collections2.transform(Hosts.listDatabases(), Hosts.NameTransform.INSTANCE));
}
