| /* |
| * 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.stats; |
| |
| import java.io.PrintStream; |
| import java.util.Arrays; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Stream; |
| |
| import com.google.common.collect.Multimap; |
| |
| import org.apache.cassandra.tools.nodetool.formatter.TableBuilder; |
| |
| import static java.util.stream.Collectors.toList; |
| |
| public class TpStatsPrinter |
| { |
| public static StatsPrinter from(String format) |
| { |
| switch (format) |
| { |
| case "json": |
| return new StatsPrinter.JsonPrinter(); |
| case "yaml": |
| return new StatsPrinter.YamlPrinter(); |
| default: |
| return new DefaultPrinter(); |
| } |
| } |
| |
| public static class DefaultPrinter implements StatsPrinter<TpStatsHolder> |
| { |
| @Override |
| public void print(TpStatsHolder data, PrintStream out) |
| { |
| final TableBuilder poolBuilder = new TableBuilder(); |
| poolBuilder.add("Pool Name", "Active", "Pending", "Completed", "Blocked", "All time blocked"); |
| |
| final Multimap<String, String> threadPools = data.probe.getThreadPools(); |
| |
| for (final Map.Entry<String, String> tpool : threadPools.entries()) |
| { |
| poolBuilder.add(tpool.getValue(), |
| data.probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "ActiveTasks").toString(), |
| data.probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "PendingTasks").toString(), |
| data.probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "CompletedTasks").toString(), |
| data.probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "CurrentlyBlockedTasks").toString(), |
| data.probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "TotalBlockedTasks").toString()); |
| } |
| |
| poolBuilder.printTo(out); |
| |
| out.println("\nLatencies waiting in queue (micros) per dropped message types"); |
| |
| final TableBuilder droppedBuilder = new TableBuilder(); |
| droppedBuilder.add("Message type", "Dropped ", "50% ", "95% ", "99% ", "Max"); |
| |
| final HashMap<String, Object> droppedMessage = new HashMap<>(); |
| final HashMap<String, Double[]> waitLatencies = new HashMap<>(); |
| |
| for (final Map.Entry<String, Integer> entry : data.probe.getDroppedMessages().entrySet()) |
| { |
| droppedMessage.put(entry.getKey(), entry.getValue()); |
| try |
| { |
| waitLatencies.put(entry.getKey(), data.probe.metricPercentilesAsArray(data.probe.getMessagingQueueWaitMetrics(entry.getKey()))); |
| } |
| catch (RuntimeException e) |
| { |
| // ignore the exceptions when fetching metrics |
| } |
| } |
| |
| for (final Map.Entry<String, Object> entry : droppedMessage.entrySet()) |
| { |
| final List<String> columns = Stream.of(entry.getKey(), entry.getValue().toString()).collect(toList()); |
| |
| if (waitLatencies.containsKey(entry.getKey())) |
| { |
| final Double[] latencies = waitLatencies.get(entry.getKey()); |
| columns.addAll(Arrays.asList(latencies[0].toString(), |
| latencies[2].toString(), |
| latencies[4].toString(), |
| latencies[6].toString())); |
| } |
| else |
| { |
| columns.addAll(Arrays.asList("N/A", "N/A", "N/A", "N/A")); |
| } |
| |
| droppedBuilder.add(columns.toArray(new String[0])); |
| } |
| |
| droppedBuilder.printTo(out); |
| } |
| } |
| } |