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Reduce recaching in Transaction Log Bloom Filter Cache #415

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Merged
shemnon merged 1 commit into from
Feb 19, 2020
Merged

Reduce recaching in Transaction Log Bloom Filter Cache #415

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6 changes: 5 additions & 1 deletion .../api/src/main/java/org/hyperledger/besu/ethereum/api/query/TransactionLogBloomCacher.java
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,7 @@ public class TransactionLogBloomCacher {

public static final int BLOCKS_PER_BLOOM_CACHE = 100_000;
private static final int BLOOM_BITS_LENGTH = 256;
private static final int EXPECTED_BLOOM_FILE_SIZE = BLOCKS_PER_BLOOM_CACHE * BLOOM_BITS_LENGTH;
public static final String CURRENT = "current";
private final Map<Long, Boolean> cachedSegments;

Expand Down Expand Up @@ -201,7 +202,10 @@ private void ensurePreviousSegmentsArePresent(final long blockNumber) {
try {
if (!cachedSegments.getOrDefault(currentSegment, false)) {
final long startBlock = currentSegment * BLOCKS_PER_BLOOM_CACHE;
generateLogBloomCache(startBlock, startBlock + BLOCKS_PER_BLOOM_CACHE);
final File cacheFile = calculateCacheFileName(startBlock, cacheDir);
if (!cacheFile.isFile() || cacheFile.length() != EXPECTED_BLOOM_FILE_SIZE) {
generateLogBloomCache(startBlock, startBlock + BLOCKS_PER_BLOOM_CACHE);
}
cachedSegments.put(currentSegment, true);
}
} finally {
Expand Down