| /* |
| * 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.bookkeeper.tools.cli.commands.bookies; |
| |
| import java.io.IOException; |
| import java.math.RoundingMode; |
| import java.text.DecimalFormat; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| |
| import org.apache.bookkeeper.client.BKException; |
| import org.apache.bookkeeper.client.BookKeeper; |
| import org.apache.bookkeeper.client.BookieInfoReader.BookieInfo; |
| import org.apache.bookkeeper.conf.ClientConfiguration; |
| import org.apache.bookkeeper.conf.ServerConfiguration; |
| import org.apache.bookkeeper.net.BookieId; |
| import org.apache.bookkeeper.tools.cli.helpers.BookieCommand; |
| import org.apache.bookkeeper.tools.cli.helpers.CommandHelpers; |
| import org.apache.bookkeeper.tools.framework.CliFlags; |
| import org.apache.bookkeeper.tools.framework.CliSpec; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| |
| /** |
| * A bookie command to retrieve bookie info. |
| */ |
| public class InfoCommand extends BookieCommand<CliFlags> { |
| |
| private static final String NAME = "info"; |
| private static final String DESC = "Retrieve bookie info such as free and total disk space."; |
| private static final Logger LOG = LoggerFactory.getLogger(InfoCommand.class); |
| |
| public InfoCommand() { |
| super(CliSpec.newBuilder() |
| .withName(NAME) |
| .withFlags(new CliFlags()) |
| .withDescription(DESC) |
| .build()); |
| } |
| |
| String getReadable(long val) { |
| String[] unit = {"", "KB", "MB", "GB", "TB"}; |
| int cnt = 0; |
| double d = val; |
| while (d >= 1000 && cnt < unit.length - 1) { |
| d = d / 1000; |
| cnt++; |
| } |
| DecimalFormat df = new DecimalFormat("#.###"); |
| df.setRoundingMode(RoundingMode.DOWN); |
| return cnt > 0 ? "(" + df.format(d) + unit[cnt] + ")" : unit[cnt]; |
| } |
| |
| |
| @Override |
| public boolean apply(ServerConfiguration conf, CliFlags cmdFlags) { |
| |
| ClientConfiguration clientConf = new ClientConfiguration(conf); |
| clientConf.setDiskWeightBasedPlacementEnabled(true); |
| try (BookKeeper bk = new BookKeeper(clientConf)) { |
| Map<BookieId, BookieInfo> map = bk.getBookieInfo(); |
| if (map.size() == 0) { |
| LOG.info("Failed to retrieve bookie information from any of the bookies"); |
| bk.close(); |
| return true; |
| } |
| |
| LOG.info("Free disk space info:"); |
| long totalFree = 0, total = 0; |
| for (Map.Entry<BookieId, BookieInfo> e : map.entrySet()) { |
| BookieInfo bInfo = e.getValue(); |
| BookieId bookieId = e.getKey(); |
| LOG.info(CommandHelpers.getBookieSocketAddrStringRepresentation(bookieId, |
| bk.getBookieAddressResolver()) |
| + ":\tFree: " + bInfo.getFreeDiskSpace() + getReadable(bInfo.getFreeDiskSpace()) |
| + "\tTotal: " + bInfo.getTotalDiskSpace() + getReadable(bInfo.getTotalDiskSpace())); |
| } |
| |
| // group by hostname |
| Map<String, BookieInfo> dedupedMap = map.entrySet() |
| .stream() |
| .collect(Collectors.toMap( |
| entry -> entry.getKey().toString(), |
| entry -> entry.getValue(), |
| (key1, key2) -> key2 |
| )); |
| for (BookieInfo bookieInfo : dedupedMap.values()) { |
| totalFree += bookieInfo.getFreeDiskSpace(); |
| total += bookieInfo.getTotalDiskSpace(); |
| } |
| |
| LOG.info("Total free disk space in the cluster:\t" + totalFree + getReadable(totalFree)); |
| LOG.info("Total disk capacity in the cluster:\t" + total + getReadable(total)); |
| bk.close(); |
| |
| return true; |
| } catch (IOException | InterruptedException | BKException e) { |
| e.printStackTrace(); |
| } |
| return true; |
| } |
| } |