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| 1 | +package org.tron.common.storage.prune; |
| 2 | + |
| 3 | +import com.google.common.primitives.Longs; |
| 4 | +import com.google.common.util.concurrent.ThreadFactoryBuilder; |
| 5 | +import java.time.OffsetDateTime; |
| 6 | +import java.time.ZoneOffset; |
| 7 | +import java.util.Arrays; |
| 8 | +import java.util.HashMap; |
| 9 | +import java.util.HashSet; |
| 10 | +import java.util.List; |
| 11 | +import java.util.Map; |
| 12 | +import java.util.Objects; |
| 13 | +import java.util.Set; |
| 14 | +import java.util.concurrent.ConcurrentHashMap; |
| 15 | +import java.util.concurrent.Executors; |
| 16 | +import java.util.concurrent.ScheduledExecutorService; |
| 17 | +import java.util.concurrent.TimeUnit; |
| 18 | +import java.util.stream.Collectors; |
| 19 | +import javax.annotation.PostConstruct; |
| 20 | +import lombok.extern.slf4j.Slf4j; |
| 21 | +import org.springframework.beans.factory.annotation.Autowired; |
| 22 | +import org.springframework.stereotype.Component; |
| 23 | +import org.tron.common.parameter.CommonParameter; |
| 24 | +import org.tron.common.utils.Commons; |
| 25 | +import org.tron.core.ChainBaseManager; |
| 26 | +import org.tron.core.capsule.BlockCapsule; |
| 27 | +import org.tron.core.db2.common.Flusher; |
| 28 | +import org.tron.core.db2.common.Value; |
| 29 | +import org.tron.core.db2.common.WrappedByteArray; |
| 30 | +import org.tron.core.db2.core.SnapshotRoot; |
| 31 | + |
| 32 | +@Slf4j(topic = "db") |
| 33 | +@Component |
| 34 | +public class ChainDataPruner { |
| 35 | + |
| 36 | + private static final String BLOCK_INDEX_STORE_NAME = "block-index"; |
| 37 | + private static final String BLOCK_STORE_NAME = "block"; |
| 38 | + private static final String TRANSACTION_STORE_NAME = "trans"; |
| 39 | + private static final String TRANSACTION_RET_STORE_NAME = "transactionRetStore"; |
| 40 | + private static final Set<String> PRUNE_DBS = new HashSet<>(Arrays.asList(BLOCK_INDEX_STORE_NAME |
| 41 | + , BLOCK_STORE_NAME, TRANSACTION_STORE_NAME, TRANSACTION_RET_STORE_NAME)); |
| 42 | + private long blocksToRetain = CommonParameter.getInstance().getStorage(). |
| 43 | + getDbAutoPruneRetain(); |
| 44 | + private long blocksBatchFlush = CommonParameter.getInstance().getStorage().getDbAutoPruneBatch(); |
| 45 | + private static Map<String, SnapshotRoot> snapshotRootMap = new ConcurrentHashMap<>(); |
| 46 | + |
| 47 | + private ScheduledExecutorService pruneExecutor = null; |
| 48 | + |
| 49 | + @Autowired |
| 50 | + private ChainBaseManager chainBaseManager; |
| 51 | + |
| 52 | + @PostConstruct |
| 53 | + public void init() { |
| 54 | + if ((!chainBaseManager.isLiteNode()) || |
| 55 | + (!CommonParameter.getInstance().getStorage().isDbAutoPrune())) { |
| 56 | + return; |
| 57 | + } |
| 58 | + pruneExecutor = Executors.newSingleThreadScheduledExecutor( |
| 59 | + new ThreadFactoryBuilder().setNameFormat("db-prune-thread-%d").build()); |
| 60 | + pruneExecutor.scheduleWithFixedDelay(() -> { |
| 61 | + try { |
| 62 | + if (!shouldBeginPrune()) { |
| 63 | + return; |
| 64 | + } |
| 65 | + prune(); |
| 66 | + } catch (InterruptedException e) { |
| 67 | + logger.warn("Prune chain data thread interrupted!"); |
| 68 | + Thread.currentThread().interrupt(); |
| 69 | + } |
| 70 | + }, 60, |
| 71 | + CommonParameter.getInstance().getStorage().getDbAutoPruneFrequency(), TimeUnit.SECONDS); |
| 72 | + } |
| 73 | + |
| 74 | + private boolean shouldBeginPrune() { |
| 75 | + OffsetDateTime now = OffsetDateTime.now(ZoneOffset.UTC); |
| 76 | + int currentHour = now.getHour(); |
| 77 | + return currentHour >= 20 || currentHour < 2; |
| 78 | + } |
| 79 | + |
| 80 | + public static void register(String dbName, SnapshotRoot snapshotRoot) { |
| 81 | + if ((!CommonParameter.getInstance().getStorage().isDbAutoPrune()) |
| 82 | + ||(!PRUNE_DBS.contains(dbName))) { |
| 83 | + return; |
| 84 | + } |
| 85 | + snapshotRootMap.put(dbName, snapshotRoot); |
| 86 | + } |
| 87 | + |
| 88 | + public void prune() throws InterruptedException { |
| 89 | + long lowestBlockNumber = chainBaseManager.getBlockStore().getLimitNumber(1, 1). |
| 90 | + stream().map(BlockCapsule::getNum).findFirst().get(); |
| 91 | + long latestBlockNumber = chainBaseManager.getDynamicPropertiesStore(). |
| 92 | + getLatestBlockHeaderNumberFromDB(); |
| 93 | + if (latestBlockNumber - lowestBlockNumber + 1 > blocksToRetain) { |
| 94 | + doPrune(lowestBlockNumber, latestBlockNumber); |
| 95 | + } |
| 96 | + } |
| 97 | + |
| 98 | + private void doPrune(long lowestBlockNumber, long latestBlockNumber) { |
| 99 | + long toFetchCount = |
| 100 | + Math.min((latestBlockNumber - lowestBlockNumber + 1 - blocksToRetain), blocksBatchFlush); |
| 101 | + List<BlockCapsule> blockCapsuleList = chainBaseManager.getBlockStore() |
| 102 | + .getLimitNumber(lowestBlockNumber, toFetchCount); |
| 103 | + Map<WrappedByteArray, WrappedByteArray> blockIdBatch = new HashMap<>(); |
| 104 | + Map<WrappedByteArray, WrappedByteArray> blockNumBatch = new HashMap<>(); |
| 105 | + Map<WrappedByteArray, WrappedByteArray> transIdBatch = new HashMap<>(); |
| 106 | + prepareWriteBatch(blockIdBatch, blockNumBatch, transIdBatch, blockCapsuleList); |
| 107 | + flushDb(blockIdBatch, blockNumBatch, transIdBatch); |
| 108 | + } |
| 109 | + |
| 110 | + private void flushDb(Map<WrappedByteArray, WrappedByteArray> blockIdBatch, |
| 111 | + Map<WrappedByteArray, WrappedByteArray> blockNumBatch, |
| 112 | + Map<WrappedByteArray, WrappedByteArray> transIdBatch) { |
| 113 | + SnapshotRoot transactionRoot = snapshotRootMap.get(TRANSACTION_STORE_NAME); |
| 114 | + ((Flusher)transactionRoot.getDb()).flush(transIdBatch); |
| 115 | + SnapshotRoot transactionRetRoot = snapshotRootMap.get(TRANSACTION_RET_STORE_NAME); |
| 116 | + ((Flusher)transactionRetRoot.getDb()).flush(blockNumBatch); |
| 117 | + SnapshotRoot blockIndexRoot = snapshotRootMap.get(BLOCK_INDEX_STORE_NAME); |
| 118 | + ((Flusher)blockIndexRoot.getDb()).flush(blockNumBatch); |
| 119 | + SnapshotRoot blockRoot = snapshotRootMap.get(BLOCK_STORE_NAME); |
| 120 | + ((Flusher)blockRoot.getDb()).flush(blockIdBatch); |
| 121 | + } |
| 122 | + |
| 123 | + private void prepareWriteBatch ( |
| 124 | + Map<WrappedByteArray, WrappedByteArray> blockIdBatch, |
| 125 | + Map<WrappedByteArray, WrappedByteArray> blockNumBatch, |
| 126 | + Map<WrappedByteArray, WrappedByteArray> transIdBatch, |
| 127 | + List<BlockCapsule> blockCapsuleList) { |
| 128 | + for (BlockCapsule blockCapsule: blockCapsuleList) { |
| 129 | + blockIdBatch.put(WrappedByteArray.of(blockCapsule.getBlockId().getBytes()), |
| 130 | + WrappedByteArray.of(Value.of(Value.Operator.DELETE, null).getBytes())); |
| 131 | + blockNumBatch.put(WrappedByteArray.of(Longs.toByteArray(blockCapsule.getNum())), |
| 132 | + WrappedByteArray.of(Value.of(Value.Operator.DELETE, null).getBytes())); |
| 133 | + blockCapsule.getTransactions().forEach(tx-> transIdBatch.put(WrappedByteArray.of(tx. |
| 134 | + getTransactionId().getBytes()), WrappedByteArray.of(Value.of(Value.Operator.DELETE, |
| 135 | + null).getBytes()))); |
| 136 | + } |
| 137 | + } |
| 138 | + |
| 139 | + public void shutdown() { |
| 140 | + if (Objects.nonNull(pruneExecutor)) { |
| 141 | + try { |
| 142 | + pruneExecutor.shutdown(); |
| 143 | + } catch (Exception e) { |
| 144 | + logger.error("Chain pruner shutdown error: {}", e.getMessage()); |
| 145 | + } |
| 146 | + } |
| 147 | + } |
| 148 | + |
| 149 | +} |
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