hyracks/hyracks-storage-am-lsm-rtree/src/main/java/org/apache/hyracks/storage/am/lsm/rtree/impls/ExternalRTree.java [304:325]:
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            long numElements = 0L;
            for (int i = 0; i < mergeOp.getMergingComponents().size(); ++i) {
                numElements += ((LSMRTreeDiskComponent) mergeOp.getMergingComponents().get(i)).getBloomFilter()
                        .getNumElements();
            }

            int maxBucketsPerElement = BloomCalculations.maxBucketsPerElement(numElements);
            BloomFilterSpecification bloomFilterSpec = BloomCalculations.computeBloomSpec(maxBucketsPerElement,
                    bloomFilterFalsePositiveRate);
            IIndexBulkLoader builder = mergedComponent.getBloomFilter().createBuilder(numElements,
                    bloomFilterSpec.getNumHashes(), bloomFilterSpec.getNumBucketsPerElements());

            try {
                while (btreeCursor.hasNext()) {
                    btreeCursor.next();
                    ITupleReference tuple = btreeCursor.getTuple();
                    btreeBulkLoader.add(tuple);
                    builder.add(tuple);
                }
            } finally {
                btreeCursor.close();
                builder.end();
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hyracks/hyracks-storage-am-lsm-rtree/src/main/java/org/apache/hyracks/storage/am/lsm/rtree/impls/LSMRTree.java [366:387]:
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            long numElements = 0L;
            for (int i = 0; i < mergeOp.getMergingComponents().size(); ++i) {
                numElements += ((LSMRTreeDiskComponent) mergeOp.getMergingComponents().get(i)).getBloomFilter()
                        .getNumElements();
            }

            int maxBucketsPerElement = BloomCalculations.maxBucketsPerElement(numElements);
            BloomFilterSpecification bloomFilterSpec = BloomCalculations.computeBloomSpec(maxBucketsPerElement,
                    bloomFilterFalsePositiveRate);
            IIndexBulkLoader builder = mergedComponent.getBloomFilter().createBuilder(numElements,
                    bloomFilterSpec.getNumHashes(), bloomFilterSpec.getNumBucketsPerElements());

            try {
                while (btreeCursor.hasNext()) {
                    btreeCursor.next();
                    ITupleReference tuple = btreeCursor.getTuple();
                    btreeBulkLoader.add(tuple);
                    builder.add(tuple);
                }
            } finally {
                btreeCursor.close();
                builder.end();
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