Examples with InitialMultiScan org.apache.accumulo.core.dataImpl.thrift.InitialMultiScan used on opensource projects

Example 1 with InitialMultiScan

use of org.apache.accumulo.core.dataImpl.thrift.InitialMultiScan in project accumulo by apache.

the class TabletServerBatchReaderIterator method doLookup.

static void doLookup(ClientContext context, String server, Map<KeyExtent, List<Range>> requested, Map<KeyExtent, List<Range>> failures, Map<KeyExtent, List<Range>> unscanned, ResultReceiver receiver, List<Column> columns, ScannerOptions options, Authorizations authorizations, TimeoutTracker timeoutTracker) throws IOException, AccumuloSecurityException, AccumuloServerException {
    if (requested.isEmpty()) {
        return;
    }
    // copy requested to unscanned map. we will remove ranges as they are scanned in trackScanning()
    for (Entry<KeyExtent, List<Range>> entry : requested.entrySet()) {
        ArrayList<Range> ranges = new ArrayList<>();
        for (Range range : entry.getValue()) {
            ranges.add(new Range(range));
        }
        unscanned.put(KeyExtent.copyOf(entry.getKey()), ranges);
    }
    timeoutTracker.startingScan();
    try {
        final HostAndPort parsedServer = HostAndPort.fromString(server);
        final TabletClientService.Client client;
        if (timeoutTracker.getTimeOut() < context.getClientTimeoutInMillis())
            client = ThriftUtil.getTServerClient(parsedServer, context, timeoutTracker.getTimeOut());
        else
            client = ThriftUtil.getTServerClient(parsedServer, context);
        try {
            OpTimer timer = null;
            if (log.isTraceEnabled()) {
                log.trace("tid={} Starting multi scan, tserver={}  #tablets={}  #ranges={} ssil={} ssio={}", Thread.currentThread().getId(), server, requested.size(), sumSizes(requested.values()), options.serverSideIteratorList, options.serverSideIteratorOptions);
                timer = new OpTimer().start();
            }
            TabletType ttype = TabletType.type(requested.keySet());
            boolean waitForWrites = !ThriftScanner.serversWaitedForWrites.get(ttype).contains(server);
            // @formatter:off
            Map<TKeyExtent, List<TRange>> thriftTabletRanges = requested.entrySet().stream().collect(Collectors.toMap((entry) -> entry.getKey().toThrift(), (entry) -> entry.getValue().stream().map(Range::toThrift).collect(Collectors.toList())));
            // @formatter:on
            Map<String, String> execHints = options.executionHints.isEmpty() ? null : options.executionHints;
            InitialMultiScan imsr = client.startMultiScan(TraceUtil.traceInfo(), context.rpcCreds(), thriftTabletRanges, columns.stream().map(Column::toThrift).collect(Collectors.toList()), options.serverSideIteratorList, options.serverSideIteratorOptions, ByteBufferUtil.toByteBuffers(authorizations.getAuthorizations()), waitForWrites, SamplerConfigurationImpl.toThrift(options.getSamplerConfiguration()), options.batchTimeOut, options.classLoaderContext, execHints);
            if (waitForWrites)
                ThriftScanner.serversWaitedForWrites.get(ttype).add(server.toString());
            MultiScanResult scanResult = imsr.result;
            if (timer != null) {
                timer.stop();
                log.trace("tid={} Got 1st multi scan results, #results={} {} in {}", Thread.currentThread().getId(), scanResult.results.size(), (scanResult.more ? "scanID=" + imsr.scanID : ""), String.format("%.3f secs", timer.scale(SECONDS)));
            }
            ArrayList<Entry<Key, Value>> entries = new ArrayList<>(scanResult.results.size());
            for (TKeyValue kv : scanResult.results) {
                entries.add(new SimpleImmutableEntry<>(new Key(kv.key), new Value(kv.value)));
            }
            if (!entries.isEmpty())
                receiver.receive(entries);
            if (!entries.isEmpty() || !scanResult.fullScans.isEmpty())
                timeoutTracker.madeProgress();
            trackScanning(failures, unscanned, scanResult);
            AtomicLong nextOpid = new AtomicLong();
            while (scanResult.more) {
                timeoutTracker.check();
                if (timer != null) {
                    log.trace("tid={} oid={} Continuing multi scan, scanid={}", Thread.currentThread().getId(), nextOpid.get(), imsr.scanID);
                    timer.reset().start();
                }
                scanResult = client.continueMultiScan(TraceUtil.traceInfo(), imsr.scanID);
                if (timer != null) {
                    timer.stop();
                    log.trace("tid={} oid={} Got more multi scan results, #results={} {} in {}", Thread.currentThread().getId(), nextOpid.getAndIncrement(), scanResult.results.size(), (scanResult.more ? " scanID=" + imsr.scanID : ""), String.format("%.3f secs", timer.scale(SECONDS)));
                }
                entries = new ArrayList<>(scanResult.results.size());
                for (TKeyValue kv : scanResult.results) {
                    entries.add(new SimpleImmutableEntry<>(new Key(kv.key), new Value(kv.value)));
                }
                if (!entries.isEmpty())
                    receiver.receive(entries);
                if (!entries.isEmpty() || !scanResult.fullScans.isEmpty())
                    timeoutTracker.madeProgress();
                trackScanning(failures, unscanned, scanResult);
            }
            client.closeMultiScan(TraceUtil.traceInfo(), imsr.scanID);
        } finally {
            ThriftUtil.returnClient(client, context);
        }
    } catch (TTransportException e) {
        log.debug("Server : {} msg : {}", server, e.getMessage());
        timeoutTracker.errorOccured();
        throw new IOException(e);
    } catch (ThriftSecurityException e) {
        log.debug("Server : {} msg : {}", server, e.getMessage(), e);
        throw new AccumuloSecurityException(e.user, e.code, e);
    } catch (TApplicationException e) {
        log.debug("Server : {} msg : {}", server, e.getMessage(), e);
        throw new AccumuloServerException(server, e);
    } catch (NoSuchScanIDException e) {
        log.debug("Server : {} msg : {}", server, e.getMessage(), e);
        throw new IOException(e);
    } catch (TSampleNotPresentException e) {
        log.debug("Server : " + server + " msg : " + e.getMessage(), e);
        String tableInfo = "?";
        if (e.getExtent() != null) {
            TableId tableId = KeyExtent.fromThrift(e.getExtent()).tableId();
            tableInfo = context.getPrintableTableInfoFromId(tableId);
        }
        String message = "Table " + tableInfo + " does not have sampling configured or built";
        throw new SampleNotPresentException(message, e);
    } catch (TException e) {
        log.debug("Server : {} msg : {}", server, e.getMessage(), e);
        timeoutTracker.errorOccured();
        throw new IOException(e);
    }
}

Example 2 with InitialMultiScan

use of org.apache.accumulo.core.dataImpl.thrift.InitialMultiScan in project accumulo by apache.

the class VerifyTabletAssignments method checkTabletServer.

private static void checkTabletServer(ClientContext context, Entry<HostAndPort, List<KeyExtent>> entry, HashSet<KeyExtent> failures) throws ThriftSecurityException, TException, NoSuchScanIDException {
    TabletClientService.Iface client = ThriftUtil.getTServerClient(entry.getKey(), context);
    Map<TKeyExtent, List<TRange>> batch = new TreeMap<>();
    for (KeyExtent keyExtent : entry.getValue()) {
        Text row = keyExtent.endRow();
        Text row2 = null;
        if (row == null) {
            row = keyExtent.prevEndRow();
            if (row != null) {
                row = new Text(row);
                row.append(new byte[] { 'a' }, 0, 1);
            } else {
                row = new Text("1234567890");
            }
            row2 = new Text(row);
            row2.append(new byte[] { '!' }, 0, 1);
        } else {
            row = new Text(row);
            row2 = new Text(row);
            row.getBytes()[row.getLength() - 1] = (byte) (row.getBytes()[row.getLength() - 1] - 1);
        }
        Range r = new Range(row, true, row2, false);
        batch.put(keyExtent.toThrift(), Collections.singletonList(r.toThrift()));
    }
    TInfo tinfo = TraceUtil.traceInfo();
    Map<String, Map<String, String>> emptyMapSMapSS = Collections.emptyMap();
    List<IterInfo> emptyListIterInfo = Collections.emptyList();
    List<TColumn> emptyListColumn = Collections.emptyList();
    InitialMultiScan is = client.startMultiScan(tinfo, context.rpcCreds(), batch, emptyListColumn, emptyListIterInfo, emptyMapSMapSS, Authorizations.EMPTY.getAuthorizationsBB(), false, null, 0L, null, null);
    if (is.result.more) {
        MultiScanResult result = client.continueMultiScan(tinfo, is.scanID);
        checkFailures(entry.getKey(), failures, result);
        while (result.more) {
            result = client.continueMultiScan(tinfo, is.scanID);
            checkFailures(entry.getKey(), failures, result);
        }
    }
    client.closeMultiScan(tinfo, is.scanID);
    ThriftUtil.returnClient((TServiceClient) client, context);
}

Example 3 with InitialMultiScan

use of org.apache.accumulo.core.dataImpl.thrift.InitialMultiScan in project accumulo by apache.

the class ThriftClientHandler method startMultiScan.

@Override
public InitialMultiScan startMultiScan(TInfo tinfo, TCredentials credentials, Map<TKeyExtent, List<TRange>> tbatch, List<TColumn> tcolumns, List<IterInfo> ssiList, Map<String, Map<String, String>> ssio, List<ByteBuffer> authorizations, boolean waitForWrites, TSamplerConfiguration tSamplerConfig, long batchTimeOut, String contextArg, Map<String, String> executionHints) throws ThriftSecurityException, TSampleNotPresentException {
    // find all of the tables that need to be scanned
    final HashSet<TableId> tables = new HashSet<>();
    for (TKeyExtent keyExtent : tbatch.keySet()) {
        tables.add(TableId.of(new String(keyExtent.getTable(), UTF_8)));
    }
    if (tables.size() != 1) {
        throw new IllegalArgumentException("Cannot batch scan over multiple tables");
    }
    // check if user has permission to the tables
    for (TableId tableId : tables) {
        NamespaceId namespaceId = getNamespaceId(credentials, tableId);
        if (!security.canScan(credentials, tableId, namespaceId, tbatch, tcolumns, ssiList, ssio, authorizations)) {
            throw new ThriftSecurityException(credentials.getPrincipal(), SecurityErrorCode.PERMISSION_DENIED);
        }
    }
    try {
        if (!security.authenticatedUserHasAuthorizations(credentials, authorizations)) {
            throw new ThriftSecurityException(credentials.getPrincipal(), SecurityErrorCode.BAD_AUTHORIZATIONS);
        }
    } catch (ThriftSecurityException tse) {
        log.error("{} is not authorized", credentials.getPrincipal(), tse);
        throw tse;
    }
    // @formatter:off
    Map<KeyExtent, List<Range>> batch = tbatch.entrySet().stream().collect(Collectors.toMap(entry -> KeyExtent.fromThrift(entry.getKey()), entry -> entry.getValue().stream().map(Range::new).collect(Collectors.toList())));
    // @formatter:on
    // This is used to determine which thread pool to use
    KeyExtent threadPoolExtent = batch.keySet().iterator().next();
    if (waitForWrites) {
        writeTracker.waitForWrites(TabletType.type(batch.keySet()));
    }
    Set<Column> columnSet = tcolumns.isEmpty() ? Collections.emptySet() : new HashSet<>(Collections2.transform(tcolumns, Column::new));
    ScanParameters scanParams = new ScanParameters(-1, new Authorizations(authorizations), columnSet, ssiList, ssio, false, SamplerConfigurationImpl.fromThrift(tSamplerConfig), batchTimeOut, contextArg);
    final MultiScanSession mss = new MultiScanSession(credentials, threadPoolExtent, batch, scanParams, executionHints);
    mss.numTablets = batch.size();
    for (List<Range> ranges : batch.values()) {
        mss.numRanges += ranges.size();
    }
    long sid = server.sessionManager.createSession(mss, true);
    MultiScanResult result;
    try {
        result = continueMultiScan(sid, mss);
    } finally {
        server.sessionManager.unreserveSession(sid);
    }
    return new InitialMultiScan(sid, result);
}