| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.accumulo.server.manager.balancer; |
| |
| import static org.apache.accumulo.core.metadata.schema.TabletMetadata.ColumnType.LOCATION; |
| import static org.apache.accumulo.core.metadata.schema.TabletMetadata.ColumnType.PREV_ROW; |
| |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| import org.apache.accumulo.core.classloader.ClassLoaderUtil; |
| import org.apache.accumulo.core.client.AccumuloException; |
| import org.apache.accumulo.core.client.AccumuloSecurityException; |
| import org.apache.accumulo.core.clientImpl.Tables; |
| import org.apache.accumulo.core.clientImpl.thrift.ThriftSecurityException; |
| import org.apache.accumulo.core.data.TableId; |
| import org.apache.accumulo.core.data.TabletId; |
| import org.apache.accumulo.core.dataImpl.TabletIdImpl; |
| import org.apache.accumulo.core.manager.balancer.TabletServerIdImpl; |
| import org.apache.accumulo.core.manager.balancer.TabletStatisticsImpl; |
| import org.apache.accumulo.core.master.state.tables.TableState; |
| import org.apache.accumulo.core.metadata.schema.TabletsMetadata; |
| import org.apache.accumulo.core.rpc.ThriftUtil; |
| import org.apache.accumulo.core.spi.balancer.BalancerEnvironment; |
| import org.apache.accumulo.core.spi.balancer.data.TabletServerId; |
| import org.apache.accumulo.core.spi.balancer.data.TabletStatistics; |
| import org.apache.accumulo.core.tabletserver.thrift.TabletClientService; |
| import org.apache.accumulo.core.trace.TraceUtil; |
| import org.apache.accumulo.core.util.HostAndPort; |
| import org.apache.accumulo.server.ServerContext; |
| import org.apache.accumulo.server.ServiceEnvironmentImpl; |
| import org.apache.thrift.TException; |
| import org.apache.thrift.transport.TTransportException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class BalancerEnvironmentImpl extends ServiceEnvironmentImpl implements BalancerEnvironment { |
| private static final Logger log = LoggerFactory.getLogger(BalancerEnvironmentImpl.class); |
| |
| public BalancerEnvironmentImpl(ServerContext ctx) { |
| super(ctx); |
| } |
| |
| @Override |
| public Map<String,TableId> getTableIdMap() { |
| return Tables.getNameToIdMap(getContext()); |
| } |
| |
| @Override |
| public boolean isTableOnline(TableId tableId) { |
| return TableState.ONLINE.equals(Tables.getTableState(getContext(), tableId)); |
| } |
| |
| @Override |
| public Map<TabletId,TabletServerId> listTabletLocations(TableId tableId) { |
| Map<TabletId,TabletServerId> tablets = new LinkedHashMap<>(); |
| for (var tm : TabletsMetadata.builder().forTable(tableId).fetch(LOCATION, PREV_ROW) |
| .build(getContext())) { |
| tablets.put(new TabletIdImpl(tm.getExtent()), |
| TabletServerIdImpl.fromThrift(tm.getLocation())); |
| } |
| return tablets; |
| } |
| |
| @Override |
| public List<TabletStatistics> listOnlineTabletsForTable(TabletServerId tabletServerId, |
| TableId tableId) throws AccumuloException, AccumuloSecurityException { |
| log.debug("Scanning tablet server {} for table {}", tabletServerId, tableId); |
| try { |
| TabletClientService.Client client = ThriftUtil.getClient( |
| new TabletClientService.Client.Factory(), |
| HostAndPort.fromParts(tabletServerId.getHost(), tabletServerId.getPort()), getContext()); |
| try { |
| return client |
| .getTabletStats(TraceUtil.traceInfo(), getContext().rpcCreds(), tableId.canonical()) |
| .stream().map(TabletStatisticsImpl::new).collect(Collectors.toList()); |
| } catch (TTransportException e) { |
| log.error("Unable to connect to {}: ", tabletServerId, e); |
| } finally { |
| ThriftUtil.returnClient(client); |
| } |
| } catch (ThriftSecurityException e) { |
| throw new AccumuloSecurityException(e); |
| } catch (TException e) { |
| throw new AccumuloException(e); |
| } |
| return null; |
| } |
| |
| @Override |
| public String tableContext(TableId tableId) { |
| return ClassLoaderUtil.tableContext(getContext().getTableConfiguration(tableId)); |
| } |
| } |