Examples with TabletDeletedException org.apache.accumulo.server.util.TabletIterator.TabletDeletedException used on opensource projects

Example 1 with TabletDeletedException

use of org.apache.accumulo.server.util.TabletIterator.TabletDeletedException in project accumulo by apache.

the class MasterClientServiceHandler method waitForFlush.

@Override
public void waitForFlush(TInfo tinfo, TCredentials c, String tableIdStr, ByteBuffer startRow, ByteBuffer endRow, long flushID, long maxLoops) throws ThriftSecurityException, ThriftTableOperationException {
    Table.ID tableId = Table.ID.of(tableIdStr);
    Namespace.ID namespaceId = getNamespaceIdFromTableId(TableOperation.FLUSH, tableId);
    master.security.canFlush(c, tableId, namespaceId);
    if (endRow != null && startRow != null && ByteBufferUtil.toText(startRow).compareTo(ByteBufferUtil.toText(endRow)) >= 0)
        throw new ThriftTableOperationException(tableId.canonicalID(), null, TableOperation.FLUSH, TableOperationExceptionType.BAD_RANGE, "start row must be less than end row");
    Set<TServerInstance> serversToFlush = new HashSet<>(master.tserverSet.getCurrentServers());
    for (long l = 0; l < maxLoops; l++) {
        for (TServerInstance instance : serversToFlush) {
            try {
                final TServerConnection server = master.tserverSet.getConnection(instance);
                if (server != null)
                    server.flush(master.masterLock, tableId, ByteBufferUtil.toBytes(startRow), ByteBufferUtil.toBytes(endRow));
            } catch (TException ex) {
                Master.log.error(ex.toString());
            }
        }
        if (l == maxLoops - 1)
            break;
        sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
        serversToFlush.clear();
        try {
            Connector conn = master.getConnector();
            Scanner scanner;
            if (tableId.equals(MetadataTable.ID)) {
                scanner = new IsolatedScanner(conn.createScanner(RootTable.NAME, Authorizations.EMPTY));
                scanner.setRange(MetadataSchema.TabletsSection.getRange());
            } else {
                scanner = new IsolatedScanner(conn.createScanner(MetadataTable.NAME, Authorizations.EMPTY));
                Range range = new KeyExtent(tableId, null, ByteBufferUtil.toText(startRow)).toMetadataRange();
                scanner.setRange(range.clip(MetadataSchema.TabletsSection.getRange()));
            }
            TabletsSection.ServerColumnFamily.FLUSH_COLUMN.fetch(scanner);
            TabletsSection.ServerColumnFamily.DIRECTORY_COLUMN.fetch(scanner);
            scanner.fetchColumnFamily(TabletsSection.CurrentLocationColumnFamily.NAME);
            scanner.fetchColumnFamily(LogColumnFamily.NAME);
            RowIterator ri = new RowIterator(scanner);
            int tabletsToWaitFor = 0;
            int tabletCount = 0;
            Text ert = ByteBufferUtil.toText(endRow);
            while (ri.hasNext()) {
                Iterator<Entry<Key, Value>> row = ri.next();
                long tabletFlushID = -1;
                int logs = 0;
                boolean online = false;
                TServerInstance server = null;
                Entry<Key, Value> entry = null;
                while (row.hasNext()) {
                    entry = row.next();
                    Key key = entry.getKey();
                    if (TabletsSection.ServerColumnFamily.FLUSH_COLUMN.equals(key.getColumnFamily(), key.getColumnQualifier())) {
                        tabletFlushID = Long.parseLong(entry.getValue().toString());
                    }
                    if (LogColumnFamily.NAME.equals(key.getColumnFamily()))
                        logs++;
                    if (TabletsSection.CurrentLocationColumnFamily.NAME.equals(key.getColumnFamily())) {
                        online = true;
                        server = new TServerInstance(entry.getValue(), key.getColumnQualifier());
                    }
                }
                // when tablet is not online and has no logs, there is no reason to wait for it
                if ((online || logs > 0) && tabletFlushID < flushID) {
                    tabletsToWaitFor++;
                    if (server != null)
                        serversToFlush.add(server);
                }
                tabletCount++;
                Text tabletEndRow = new KeyExtent(entry.getKey().getRow(), (Text) null).getEndRow();
                if (tabletEndRow == null || (ert != null && tabletEndRow.compareTo(ert) >= 0))
                    break;
            }
            if (tabletsToWaitFor == 0)
                break;
            if (tabletCount == 0 && !Tables.exists(master.getInstance(), tableId))
                throw new ThriftTableOperationException(tableId.canonicalID(), null, TableOperation.FLUSH, TableOperationExceptionType.NOTFOUND, null);
        } catch (AccumuloException | TabletDeletedException e) {
            Master.log.debug("Failed to scan {} table to wait for flush {}", MetadataTable.NAME, tableId, e);
        } catch (AccumuloSecurityException e) {
            Master.log.warn("{}", e.getMessage(), e);
            throw new ThriftSecurityException();
        } catch (TableNotFoundException e) {
            Master.log.error("{}", e.getMessage(), e);
            throw new ThriftTableOperationException();
        }
    }
}