Examples with TransactionVisibilityState org.apache.tephra.persist.TransactionVisibilityState used on opensource projects

Example 1 with TransactionVisibilityState

use of org.apache.tephra.persist.TransactionVisibilityState in project cdap by caskdata.

the class MessageTableRegionObserver method preFlushScannerOpen.

@Override
public InternalScanner preFlushScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Store store, KeyValueScanner memstoreScanner, InternalScanner s) throws IOException {
    LOG.info("preFlush, filter using MessageDataFilter");
    TransactionVisibilityState txVisibilityState = txStateCache.getLatestState();
    Scan scan = new Scan();
    scan.setFilter(new MessageDataFilter(c.getEnvironment(), System.currentTimeMillis(), prefixLength, topicMetadataCache, txVisibilityState));
    return new LoggingInternalScanner("MessageDataFilter", "preFlush", new StoreScanner(store, store.getScanInfo(), scan, Collections.singletonList(memstoreScanner), ScanType.COMPACT_DROP_DELETES, store.getSmallestReadPoint(), HConstants.OLDEST_TIMESTAMP), txVisibilityState);
}

Example 2 with TransactionVisibilityState

use of org.apache.tephra.persist.TransactionVisibilityState in project cdap by caskdata.

the class HBaseQueueRegionObserver method preCompact.

@Override
public InternalScanner preCompact(ObserverContext<RegionCoprocessorEnvironment> e, Store store, InternalScanner scanner, ScanType type, CompactionRequest request) throws IOException {
    if (!e.getEnvironment().getRegion().isAvailable()) {
        return scanner;
    }
    LOG.info("preCompact, creates EvictionInternalScanner");
    TransactionVisibilityState txVisibilityState = txStateCache.getLatestState();
    reloadPruneState(e.getEnvironment());
    if (compactionState != null) {
        // Record tx state before the compaction
        compactionState.record(request, txVisibilityState);
    }
    return new EvictionInternalScanner("compaction", e.getEnvironment(), scanner, txVisibilityState);
}

Example 3 with TransactionVisibilityState

use of org.apache.tephra.persist.TransactionVisibilityState in project cdap by caskdata.

the class MessageTableRegionObserver method preFlushScannerOpen.

@Override
public InternalScanner preFlushScannerOpen(ObserverContext<RegionCoprocessorEnvironment> c, Store store, KeyValueScanner memstoreScanner, InternalScanner s) throws IOException {
    LOG.info("preFlush, filter using MessageDataFilter");
    TransactionVisibilityState txVisibilityState = txStateCache.getLatestState();
    Scan scan = new Scan();
    scan.setFilter(new MessageDataFilter(c.getEnvironment(), System.currentTimeMillis(), prefixLength, topicMetadataCache, txVisibilityState));
    return new LoggingInternalScanner("MessageDataFilter", "preFlush", new StoreScanner(store, store.getScanInfo(), scan, Collections.singletonList(memstoreScanner), ScanType.COMPACT_DROP_DELETES, store.getSmallestReadPoint(), HConstants.OLDEST_TIMESTAMP), txVisibilityState);
}

Example 4 with TransactionVisibilityState

use of org.apache.tephra.persist.TransactionVisibilityState in project cdap by caskdata.

the class HBaseQueueRegionObserver method preCompact.

@Override
public InternalScanner preCompact(ObserverContext<RegionCoprocessorEnvironment> e, Store store, InternalScanner scanner, ScanType type, CompactionRequest request) throws IOException {
    if (!e.getEnvironment().getRegion().isAvailable()) {
        return scanner;
    }
    LOG.info("preCompact, creates EvictionInternalScanner");
    TransactionVisibilityState txVisibilityState = txStateCache.getLatestState();
    reloadPruneState(e.getEnvironment());
    if (compactionState != null) {
        // Record tx state before the compaction
        compactionState.record(request, txVisibilityState);
    }
    return new EvictionInternalScanner("compaction", e.getEnvironment(), scanner, txVisibilityState);
}

Example 5 with TransactionVisibilityState

use of org.apache.tephra.persist.TransactionVisibilityState in project cdap by caskdata.

the class HBaseQueueRegionObserver method preCompact.

@Override
public InternalScanner preCompact(ObserverContext<RegionCoprocessorEnvironment> e, Store store, InternalScanner scanner, ScanType type, CompactionRequest request) throws IOException {
    if (!e.getEnvironment().getRegion().isAvailable()) {
        return scanner;
    }
    LOG.info("preCompact, creates EvictionInternalScanner");
    TransactionVisibilityState txVisibilityState = txStateCache.getLatestState();
    reloadPruneState(e.getEnvironment());
    if (compactionState != null) {
        // Record tx state before the compaction
        compactionState.record(request, txVisibilityState);
    }
    return new EvictionInternalScanner("compaction", e.getEnvironment(), scanner, txVisibilityState);
}