/* * 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.cassandra.tools.nodetool; import static java.lang.String.format; import io.airlift.command.Command; import io.airlift.command.Option; import java.text.DecimalFormat; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.apache.cassandra.db.compaction.CompactionManagerMBean; import org.apache.cassandra.db.compaction.OperationType; import org.apache.cassandra.io.util.FileUtils; import org.apache.cassandra.tools.NodeProbe; import org.apache.cassandra.tools.NodeTool; import org.apache.cassandra.tools.NodeTool.NodeToolCmd; @Command(name = "compactionstats", description = "Print statistics on compactions") public class CompactionStats extends NodeToolCmd { @Option(title = "human_readable", name = {"-H", "--human-readable"}, description = "Display bytes in human readable form, i.e. KB, MB, GB, TB") private boolean humanReadable = false; @Override public void execute(NodeProbe probe) { CompactionManagerMBean cm = probe.getCompactionManagerProxy(); System.out.println("pending tasks: " + probe.getCompactionMetric("PendingTasks")); long remainingBytes = 0; List<Map<String, String>> compactions = cm.getCompactions(); if (!compactions.isEmpty()) { int compactionThroughput = probe.getCompactionThroughput(); List<String[]> lines = new ArrayList<>(); int[] columnSizes = new int[] { 0, 0, 0, 0, 0, 0, 0, 0 }; addLine(lines, columnSizes, "id", "compaction type", "keyspace", "table", "completed", "total", "unit", "progress"); for (Map<String, String> c : compactions) { long total = Long.parseLong(c.get("total")); long completed = Long.parseLong(c.get("completed")); String taskType = c.get("taskType"); String keyspace = c.get("keyspace"); String columnFamily = c.get("columnfamily"); String completedStr = humanReadable ? FileUtils.stringifyFileSize(completed) : Long.toString(completed); String totalStr = humanReadable ? FileUtils.stringifyFileSize(total) : Long.toString(total); String unit = c.get("unit"); String percentComplete = total == 0 ? "n/a" : new DecimalFormat("0.00").format((double) completed / total * 100) + "%"; String id = c.get("compactionId"); addLine(lines, columnSizes, id, taskType, keyspace, columnFamily, completedStr, totalStr, unit, percentComplete); if (taskType.equals(OperationType.COMPACTION.toString())) remainingBytes += total - completed; } StringBuilder buffer = new StringBuilder(); for (int columnSize : columnSizes) { buffer.append("%"); buffer.append(columnSize + 3); buffer.append("s"); } buffer.append("%n"); String format = buffer.toString(); for (String[] line : lines) { System.out.printf(format, line[0], line[1], line[2], line[3], line[4], line[5], line[6], line[7]); } String remainingTime = "n/a"; if (compactionThroughput != 0) { long remainingTimeInSecs = remainingBytes / (1024L * 1024L * compactionThroughput); remainingTime = format("%dh%02dm%02ds", remainingTimeInSecs / 3600, (remainingTimeInSecs % 3600) / 60, (remainingTimeInSecs % 60)); } System.out.printf("%25s%10s%n", "Active compaction remaining time : ", remainingTime); } } private void addLine(List<String[]> lines, int[] columnSizes, String... columns) { lines.add(columns); for (int i = 0; i < columns.length; i++) { columnSizes[i] = Math.max(columnSizes[i], columns[i].length()); } } }