bookkeeper-server/src/main/java/org/apache/bookkeeper/client/ZoneawareEnsemblePlacementPolicy.java [99:114]:
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    public PlacementResult<BookieId> replaceBookie(int ensembleSize, int writeQuorumSize, int ackQuorumSize,
            Map<String, byte[]> customMetadata, List<BookieId> currentEnsemble,
            BookieId bookieToReplace, Set<BookieId> excludeBookies)
            throws BKException.BKNotEnoughBookiesException {
       try {
            return super.replaceBookie(ensembleSize, writeQuorumSize, ackQuorumSize, customMetadata,
                    currentEnsemble, bookieToReplace, excludeBookies);
        } catch (BKException.BKNotEnoughBookiesException bnebe) {
            if (slave == null) {
                throw bnebe;
            } else {
                return slave.replaceBookie(ensembleSize, writeQuorumSize, ackQuorumSize, customMetadata,
                        currentEnsemble, bookieToReplace, excludeBookies);
            }
        }
    }
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bookkeeper-server/src/main/java/org/apache/bookkeeper/client/RackawareEnsemblePlacementPolicy.java [134:149]:
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    public PlacementResult<BookieId> replaceBookie(int ensembleSize, int writeQuorumSize, int ackQuorumSize,
            Map<String, byte[]> customMetadata, List<BookieId> currentEnsemble,
            BookieId bookieToReplace, Set<BookieId> excludeBookies)
            throws BKException.BKNotEnoughBookiesException {
       try {
            return super.replaceBookie(ensembleSize, writeQuorumSize, ackQuorumSize, customMetadata,
                    currentEnsemble, bookieToReplace, excludeBookies);
        } catch (BKException.BKNotEnoughBookiesException bnebe) {
            if (slave == null) {
                throw bnebe;
            } else {
                return slave.replaceBookie(ensembleSize, writeQuorumSize, ackQuorumSize, customMetadata,
                        currentEnsemble, bookieToReplace, excludeBookies);
            }
        }
    }
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