Collections.newSetFromMap(new ConcurrentHashMap<CompletableFuture<?>, Boolean>()); final RateLimiter throttler = RateLimiter.create(rate); final Iterator<Long> ledgerItr = admin.listLedgers().iterator();
val bkAdmin = new BookKeeperAdmin(context.logFactory.getBookKeeperClient()); val allLedgerIds = new ArrayList<Long>(); bkAdmin.listLedgers().forEach(allLedgerIds::add);