Examples with AccumuloServerContext org.apache.accumulo.server.AccumuloServerContext used on opensource projects

Example 36 with AccumuloServerContext

use of org.apache.accumulo.server.AccumuloServerContext in project accumulo by apache.

the class ListBulkCommand method execute.

@Override
public int execute(final String fullCommand, final CommandLine cl, final Shell shellState) throws Exception {
    List<String> tservers;
    MasterMonitorInfo stats;
    MasterClientService.Iface client = null;
    Instance instance = shellState.getInstance();
    AccumuloServerContext context = new AccumuloServerContext(instance, new ServerConfigurationFactory(instance));
    while (true) {
        try {
            client = MasterClient.getConnectionWithRetry(context);
            stats = client.getMasterStats(Tracer.traceInfo(), context.rpcCreds());
            break;
        } catch (ThriftNotActiveServiceException e) {
            // Let it loop, fetching a new location
            sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
        } finally {
            if (client != null)
                MasterClient.close(client);
        }
    }
    final boolean paginate = !cl.hasOption(disablePaginationOpt.getOpt());
    if (cl.hasOption(tserverOption.getOpt())) {
        tservers = new ArrayList<>();
        tservers.add(cl.getOptionValue(tserverOption.getOpt()));
    } else {
        tservers = Collections.emptyList();
    }
    shellState.printLines(new BulkImportListIterator(tservers, stats), paginate);
    return 0;
}

Example 37 with AccumuloServerContext

use of org.apache.accumulo.server.AccumuloServerContext in project accumulo by apache.

the class MergeStateIT method test.

@Test
public void test() throws Exception {
    AccumuloServerContext context = EasyMock.createMock(AccumuloServerContext.class);
    Connector connector = getConnector();
    EasyMock.expect(context.getConnector()).andReturn(connector).anyTimes();
    EasyMock.replay(context);
    connector.securityOperations().grantTablePermission(connector.whoami(), MetadataTable.NAME, TablePermission.WRITE);
    BatchWriter bw = connector.createBatchWriter(MetadataTable.NAME, new BatchWriterConfig());
    // Create a fake METADATA table with these splits
    String[] splits = { "a", "e", "j", "o", "t", "z" };
    // create metadata for a table "t" with the splits above
    Table.ID tableId = Table.ID.of("t");
    Text pr = null;
    for (String s : splits) {
        Text split = new Text(s);
        Mutation prevRow = KeyExtent.getPrevRowUpdateMutation(new KeyExtent(tableId, split, pr));
        prevRow.put(TabletsSection.CurrentLocationColumnFamily.NAME, new Text("123456"), new Value("127.0.0.1:1234".getBytes()));
        ChoppedColumnFamily.CHOPPED_COLUMN.put(prevRow, new Value("junk".getBytes()));
        bw.addMutation(prevRow);
        pr = split;
    }
    // Add the default tablet
    Mutation defaultTablet = KeyExtent.getPrevRowUpdateMutation(new KeyExtent(tableId, null, pr));
    defaultTablet.put(TabletsSection.CurrentLocationColumnFamily.NAME, new Text("123456"), new Value("127.0.0.1:1234".getBytes()));
    bw.addMutation(defaultTablet);
    bw.close();
    // Read out the TabletLocationStates
    MockCurrentState state = new MockCurrentState(new MergeInfo(new KeyExtent(tableId, new Text("p"), new Text("e")), MergeInfo.Operation.MERGE));
    // Verify the tablet state: hosted, and count
    MetaDataStateStore metaDataStateStore = new MetaDataStateStore(context, state);
    int count = 0;
    for (TabletLocationState tss : metaDataStateStore) {
        if (tss != null)
            count++;
    }
    // the normal case is to skip tablets in a good state
    Assert.assertEquals(0, count);
    // Create the hole
    // Split the tablet at one end of the range
    Mutation m = new KeyExtent(tableId, new Text("t"), new Text("p")).getPrevRowUpdateMutation();
    TabletsSection.TabletColumnFamily.SPLIT_RATIO_COLUMN.put(m, new Value("0.5".getBytes()));
    TabletsSection.TabletColumnFamily.OLD_PREV_ROW_COLUMN.put(m, KeyExtent.encodePrevEndRow(new Text("o")));
    update(connector, m);
    // do the state check
    MergeStats stats = scan(state, metaDataStateStore);
    MergeState newState = stats.nextMergeState(connector, state);
    Assert.assertEquals(MergeState.WAITING_FOR_OFFLINE, newState);
    // unassign the tablets
    BatchDeleter deleter = connector.createBatchDeleter(MetadataTable.NAME, Authorizations.EMPTY, 1000, new BatchWriterConfig());
    deleter.fetchColumnFamily(TabletsSection.CurrentLocationColumnFamily.NAME);
    deleter.setRanges(Collections.singletonList(new Range()));
    deleter.delete();
    // now we should be ready to merge but, we have inconsistent metadata
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.WAITING_FOR_OFFLINE, stats.nextMergeState(connector, state));
    // finish the split
    KeyExtent tablet = new KeyExtent(tableId, new Text("p"), new Text("o"));
    m = tablet.getPrevRowUpdateMutation();
    TabletsSection.TabletColumnFamily.SPLIT_RATIO_COLUMN.put(m, new Value("0.5".getBytes()));
    update(connector, m);
    metaDataStateStore.setLocations(Collections.singletonList(new Assignment(tablet, state.someTServer)));
    // onos... there's a new tablet online
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.WAITING_FOR_CHOPPED, stats.nextMergeState(connector, state));
    // chop it
    m = tablet.getPrevRowUpdateMutation();
    ChoppedColumnFamily.CHOPPED_COLUMN.put(m, new Value("junk".getBytes()));
    update(connector, m);
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.WAITING_FOR_OFFLINE, stats.nextMergeState(connector, state));
    // take it offline
    m = tablet.getPrevRowUpdateMutation();
    Collection<Collection<String>> walogs = Collections.emptyList();
    metaDataStateStore.unassign(Collections.singletonList(new TabletLocationState(tablet, null, state.someTServer, null, null, walogs, false)), null);
    // now we can split
    stats = scan(state, metaDataStateStore);
    Assert.assertEquals(MergeState.MERGING, stats.nextMergeState(connector, state));
}

Example 38 with AccumuloServerContext

use of org.apache.accumulo.server.AccumuloServerContext in project accumulo by apache.

the class NullTserver method main.

public static void main(String[] args) throws Exception {
    Opts opts = new Opts();
    opts.parseArgs(NullTserver.class.getName(), args);
    // modify metadata
    ZooKeeperInstance zki = new ZooKeeperInstance(ClientConfiguration.create().withInstance(opts.iname).withZkHosts(opts.keepers));
    Instance inst = HdfsZooInstance.getInstance();
    AccumuloServerContext context = new AccumuloServerContext(inst, new ServerConfigurationFactory(zki));
    TransactionWatcher watcher = new TransactionWatcher();
    ThriftClientHandler tch = new ThriftClientHandler(new AccumuloServerContext(inst, new ServerConfigurationFactory(inst)), watcher);
    Processor<Iface> processor = new Processor<>(tch);
    TServerUtils.startTServer(context.getConfiguration(), ThriftServerType.CUSTOM_HS_HA, processor, "NullTServer", "null tserver", 2, 1, 1000, 10 * 1024 * 1024, null, null, -1, HostAndPort.fromParts("0.0.0.0", opts.port));
    HostAndPort addr = HostAndPort.fromParts(InetAddress.getLocalHost().getHostName(), opts.port);
    Table.ID tableId = Tables.getTableId(zki, opts.tableName);
    // read the locations for the table
    Range tableRange = new KeyExtent(tableId, null, null).toMetadataRange();
    List<Assignment> assignments = new ArrayList<>();
    try (MetaDataTableScanner s = new MetaDataTableScanner(context, tableRange)) {
        long randomSessionID = opts.port;
        TServerInstance instance = new TServerInstance(addr, randomSessionID);
        while (s.hasNext()) {
            TabletLocationState next = s.next();
            assignments.add(new Assignment(next.extent, instance));
        }
    }
    // point them to this server
    MetaDataStateStore store = new MetaDataStateStore(context);
    store.setLocations(assignments);
    while (true) {
        sleepUninterruptibly(10, TimeUnit.SECONDS);
    }
}