Examples with ClientContext org.apache.accumulo.core.client.impl.ClientContext used on opensource projects

Example 6 with ClientContext

use of org.apache.accumulo.core.client.impl.ClientContext in project teiid by teiid.

the class AccumuloConnectionImpl method checkTabletServerExists.

private void checkTabletServerExists(ZooKeeperInstance inst, String userName, String password) throws ResourceException {
    ClientService.Client client = null;
    try {
        Pair<String, Client> pair = ServerClient.getConnection(new ClientContext(inst, new Credentials(userName, new PasswordToken(password)), inst.getConfiguration()), true, 10);
        client = pair.getSecond();
    } catch (TTransportException e) {
        throw new ResourceException(AccumuloManagedConnectionFactory.UTIL.getString("no_tserver"), e);
    } finally {
        if (client != null) {
            ServerClient.close(client);
        }
    }
}

Example 7 with ClientContext

use of org.apache.accumulo.core.client.impl.ClientContext in project accumulo by apache.

the class AccumuloReplicaSystem method replicate.

@Override
public Status replicate(final Path p, final Status status, final ReplicationTarget target, final ReplicaSystemHelper helper) {
    final Instance localInstance = HdfsZooInstance.getInstance();
    final AccumuloConfiguration localConf = new ServerConfigurationFactory(localInstance).getSystemConfiguration();
    log.debug("Replication RPC timeout is {}", localConf.get(Property.REPLICATION_RPC_TIMEOUT.getKey()));
    final String principal = getPrincipal(localConf, target);
    final File keytab;
    final String password;
    if (localConf.getBoolean(Property.INSTANCE_RPC_SASL_ENABLED)) {
        String keytabPath = getKeytab(localConf, target);
        keytab = new File(keytabPath);
        if (!keytab.exists() || !keytab.isFile()) {
            log.error("{} is not a regular file. Cannot login to replicate", keytabPath);
            return status;
        }
        password = null;
    } else {
        keytab = null;
        password = getPassword(localConf, target);
    }
    if (null != keytab) {
        try {
            final UserGroupInformation accumuloUgi = UserGroupInformation.getCurrentUser();
            // Get a UGI with the principal + keytab
            UserGroupInformation ugi = UserGroupInformation.loginUserFromKeytabAndReturnUGI(principal, keytab.getAbsolutePath());
            // Run inside a doAs to avoid nuking the Tserver's user
            return ugi.doAs(new PrivilegedAction<Status>() {

                @Override
                public Status run() {
                    KerberosToken token;
                    try {
                        // Do *not* replace the current user
                        token = new KerberosToken(principal, keytab);
                    } catch (IOException e) {
                        log.error("Failed to create KerberosToken", e);
                        return status;
                    }
                    ClientContext peerContext = getContextForPeer(localConf, target, principal, token);
                    return _replicate(p, status, target, helper, localConf, peerContext, accumuloUgi);
                }
            });
        } catch (IOException e) {
            // Can't log in, can't replicate
            log.error("Failed to perform local login", e);
            return status;
        }
    } else {
        // Simple case: make a password token, context and then replicate
        PasswordToken token = new PasswordToken(password);
        ClientContext peerContext = getContextForPeer(localConf, target, principal, token);
        return _replicate(p, status, target, helper, localConf, peerContext, null);
    }
}

Example 8 with ClientContext

use of org.apache.accumulo.core.client.impl.ClientContext in project accumulo by apache.

the class ReplicationProcessorTest method peerTypeExtractionFromConfiguration.

@Test
public void peerTypeExtractionFromConfiguration() {
    Instance inst = EasyMock.createMock(Instance.class);
    VolumeManager fs = EasyMock.createMock(VolumeManager.class);
    Credentials creds = new Credentials("foo", new PasswordToken("bar"));
    ClientContext context = new ClientContext(inst, creds, ClientConfiguration.create());
    Map<String, String> data = new HashMap<>();
    String peerName = "peer";
    String configuration = "java.lang.String,foo";
    data.put(Property.REPLICATION_PEERS + peerName, configuration);
    ConfigurationCopy conf = new ConfigurationCopy(data);
    ReplicationProcessor proc = new ReplicationProcessor(context, conf, fs);
    Assert.assertEquals(configuration, proc.getPeerType(peerName));
}

Example 9 with ClientContext

use of org.apache.accumulo.core.client.impl.ClientContext in project accumulo by apache.

the class AbstractInputFormat method getSplits.

/**
 * Gets the splits of the tables that have been set on the job by reading the metadata table for the specified ranges.
 *
 * @return the splits from the tables based on the ranges.
 * @throws java.io.IOException
 *           if a table set on the job doesn't exist or an error occurs initializing the tablet locator
 */
@Override
public List<InputSplit> getSplits(JobContext context) throws IOException {
    Level logLevel = getLogLevel(context);
    log.setLevel(logLevel);
    validateOptions(context);
    Random random = new Random();
    LinkedList<InputSplit> splits = new LinkedList<>();
    Map<String, InputTableConfig> tableConfigs = getInputTableConfigs(context);
    for (Map.Entry<String, InputTableConfig> tableConfigEntry : tableConfigs.entrySet()) {
        String tableName = tableConfigEntry.getKey();
        InputTableConfig tableConfig = tableConfigEntry.getValue();
        Instance instance = getInstance(context);
        Table.ID tableId;
        // resolve table name to id once, and use id from this point forward
        if (DeprecationUtil.isMockInstance(instance)) {
            tableId = Table.ID.of("");
        } else {
            try {
                tableId = Tables.getTableId(instance, tableName);
            } catch (TableNotFoundException e) {
                throw new IOException(e);
            }
        }
        Authorizations auths = getScanAuthorizations(context);
        String principal = getPrincipal(context);
        AuthenticationToken token = getAuthenticationToken(context);
        boolean batchScan = InputConfigurator.isBatchScan(CLASS, context.getConfiguration());
        boolean supportBatchScan = !(tableConfig.isOfflineScan() || tableConfig.shouldUseIsolatedScanners() || tableConfig.shouldUseLocalIterators());
        if (batchScan && !supportBatchScan)
            throw new IllegalArgumentException("BatchScanner optimization not available for offline scan, isolated, or local iterators");
        boolean autoAdjust = tableConfig.shouldAutoAdjustRanges();
        if (batchScan && !autoAdjust)
            throw new IllegalArgumentException("AutoAdjustRanges must be enabled when using BatchScanner optimization");
        List<Range> ranges = autoAdjust ? Range.mergeOverlapping(tableConfig.getRanges()) : tableConfig.getRanges();
        if (ranges.isEmpty()) {
            ranges = new ArrayList<>(1);
            ranges.add(new Range());
        }
        // get the metadata information for these ranges
        Map<String, Map<KeyExtent, List<Range>>> binnedRanges = new HashMap<>();
        TabletLocator tl;
        try {
            if (tableConfig.isOfflineScan()) {
                binnedRanges = binOfflineTable(context, tableId, ranges);
                while (binnedRanges == null) {
                    // Some tablets were still online, try again
                    // sleep randomly between 100 and 200 ms
                    sleepUninterruptibly(100 + random.nextInt(100), TimeUnit.MILLISECONDS);
                    binnedRanges = binOfflineTable(context, tableId, ranges);
                }
            } else {
                tl = InputConfigurator.getTabletLocator(CLASS, context.getConfiguration(), tableId);
                // its possible that the cache could contain complete, but old information about a tables tablets... so clear it
                tl.invalidateCache();
                ClientContext clientContext = new ClientContext(getInstance(context), new Credentials(getPrincipal(context), getAuthenticationToken(context)), getClientConfiguration(context));
                while (!tl.binRanges(clientContext, ranges, binnedRanges).isEmpty()) {
                    if (!DeprecationUtil.isMockInstance(instance)) {
                        String tableIdStr = tableId.canonicalID();
                        if (!Tables.exists(instance, tableId))
                            throw new TableDeletedException(tableIdStr);
                        if (Tables.getTableState(instance, tableId) == TableState.OFFLINE)
                            throw new TableOfflineException(instance, tableIdStr);
                    }
                    binnedRanges.clear();
                    log.warn("Unable to locate bins for specified ranges. Retrying.");
                    // sleep randomly between 100 and 200 ms
                    sleepUninterruptibly(100 + random.nextInt(100), TimeUnit.MILLISECONDS);
                    tl.invalidateCache();
                }
            }
        } catch (Exception e) {
            throw new IOException(e);
        }
        // all of this code will add either range per each locations or split ranges and add range-location split
        // Map from Range to Array of Locations, we only use this if we're don't split
        HashMap<Range, ArrayList<String>> splitsToAdd = null;
        if (!autoAdjust)
            splitsToAdd = new HashMap<>();
        HashMap<String, String> hostNameCache = new HashMap<>();
        for (Map.Entry<String, Map<KeyExtent, List<Range>>> tserverBin : binnedRanges.entrySet()) {
            String ip = tserverBin.getKey().split(":", 2)[0];
            String location = hostNameCache.get(ip);
            if (location == null) {
                InetAddress inetAddress = InetAddress.getByName(ip);
                location = inetAddress.getCanonicalHostName();
                hostNameCache.put(ip, location);
            }
            for (Map.Entry<KeyExtent, List<Range>> extentRanges : tserverBin.getValue().entrySet()) {
                Range ke = extentRanges.getKey().toDataRange();
                if (batchScan) {
                    // group ranges by tablet to be read by a BatchScanner
                    ArrayList<Range> clippedRanges = new ArrayList<>();
                    for (Range r : extentRanges.getValue()) clippedRanges.add(ke.clip(r));
                    BatchInputSplit split = new BatchInputSplit(tableName, tableId, clippedRanges, new String[] { location });
                    SplitUtils.updateSplit(split, instance, tableConfig, principal, token, auths, logLevel);
                    splits.add(split);
                } else {
                    // not grouping by tablet
                    for (Range r : extentRanges.getValue()) {
                        if (autoAdjust) {
                            // divide ranges into smaller ranges, based on the tablets
                            RangeInputSplit split = new RangeInputSplit(tableName, tableId.canonicalID(), ke.clip(r), new String[] { location });
                            SplitUtils.updateSplit(split, instance, tableConfig, principal, token, auths, logLevel);
                            split.setOffline(tableConfig.isOfflineScan());
                            split.setIsolatedScan(tableConfig.shouldUseIsolatedScanners());
                            split.setUsesLocalIterators(tableConfig.shouldUseLocalIterators());
                            splits.add(split);
                        } else {
                            // don't divide ranges
                            ArrayList<String> locations = splitsToAdd.get(r);
                            if (locations == null)
                                locations = new ArrayList<>(1);
                            locations.add(location);
                            splitsToAdd.put(r, locations);
                        }
                    }
                }
            }
        }
        if (!autoAdjust)
            for (Map.Entry<Range, ArrayList<String>> entry : splitsToAdd.entrySet()) {
                RangeInputSplit split = new RangeInputSplit(tableName, tableId.canonicalID(), entry.getKey(), entry.getValue().toArray(new String[0]));
                SplitUtils.updateSplit(split, instance, tableConfig, principal, token, auths, logLevel);
                split.setOffline(tableConfig.isOfflineScan());
                split.setIsolatedScan(tableConfig.shouldUseIsolatedScanners());
                split.setUsesLocalIterators(tableConfig.shouldUseLocalIterators());
                splits.add(split);
            }
    }
    return splits;
}

Example 10 with ClientContext

use of org.apache.accumulo.core.client.impl.ClientContext in project accumulo by apache.

the class RemoveEntriesForMissingFiles method main.

public static void main(String[] args) throws Exception {
    Opts opts = new Opts();
    ScannerOpts scanOpts = new ScannerOpts();
    BatchWriterOpts bwOpts = new BatchWriterOpts();
    opts.parseArgs(RemoveEntriesForMissingFiles.class.getName(), args, scanOpts, bwOpts);
    checkAllTables(new ClientContext(opts.getInstance(), new Credentials(opts.getPrincipal(), opts.getToken()), ClientConfiguration.loadDefault()), opts.fix);
}