Examples with LogicalTransactionStore org.neo4j.kernel.impl.transaction.log.LogicalTransactionStore used on opensource projects

Example 16 with LogicalTransactionStore

use of org.neo4j.kernel.impl.transaction.log.LogicalTransactionStore in project neo4j by neo4j.

the class HighlyAvailableEditionModule method assureLastCommitTimestampInitialized.

private static void assureLastCommitTimestampInitialized(DependencyResolver resolver) {
    MetaDataStore metaDataStore = resolver.resolveDependency(MetaDataStore.class);
    LogicalTransactionStore txStore = resolver.resolveDependency(LogicalTransactionStore.class);
    TransactionId txInfo = metaDataStore.getLastCommittedTransaction();
    long lastCommitTimestampFromStore = txInfo.commitTimestamp();
    if (txInfo.transactionId() == TransactionIdStore.BASE_TX_ID) {
        metaDataStore.setLastTransactionCommitTimestamp(TransactionIdStore.BASE_TX_COMMIT_TIMESTAMP);
        return;
    }
    if (lastCommitTimestampFromStore == TransactionIdStore.UNKNOWN_TX_COMMIT_TIMESTAMP || lastCommitTimestampFromStore == TransactionIdStore.BASE_TX_COMMIT_TIMESTAMP) {
        long lastCommitTimestampFromLogs;
        try {
            TransactionMetadata metadata = txStore.getMetadataFor(txInfo.transactionId());
            lastCommitTimestampFromLogs = metadata.getTimeWritten();
        } catch (NoSuchTransactionException e) {
            lastCommitTimestampFromLogs = TransactionIdStore.UNKNOWN_TX_COMMIT_TIMESTAMP;
        } catch (IOException e) {
            throw new IllegalStateException("Unable to read transaction logs", e);
        }
        metaDataStore.setLastTransactionCommitTimestamp(lastCommitTimestampFromLogs);
    }
}

Example 17 with LogicalTransactionStore

use of org.neo4j.kernel.impl.transaction.log.LogicalTransactionStore in project neo4j by neo4j.

the class LabelAndIndexUpdateBatchingIT method extractTransactions.

private static List<TransactionRepresentation> extractTransactions(GraphDatabaseAPI db) throws NoSuchTransactionException, IOException {
    LogicalTransactionStore txStore = db.getDependencyResolver().resolveDependency(LogicalTransactionStore.class);
    List<TransactionRepresentation> transactions = new ArrayList<>();
    try (TransactionCursor cursor = txStore.getTransactions(TransactionIdStore.BASE_TX_ID + 1)) {
        cursor.forAll(tx -> transactions.add(tx.getTransactionRepresentation()));
    }
    return transactions;
}