| /* |
| * 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 io.airlift.command.Command; |
| |
| import java.util.Map; |
| |
| import com.google.common.collect.Multimap; |
| |
| import org.apache.cassandra.tools.NodeProbe; |
| import org.apache.cassandra.tools.NodeTool.NodeToolCmd; |
| |
| @Command(name = "tpstats", description = "Print usage statistics of thread pools") |
| public class TpStats extends NodeToolCmd |
| { |
| @Override |
| public void execute(NodeProbe probe) |
| { |
| System.out.printf("%-25s%10s%10s%15s%10s%18s%n", "Pool Name", "Active", "Pending", "Completed", "Blocked", "All time blocked"); |
| |
| |
| Multimap<String, String> threadPools = probe.getThreadPools(); |
| for (Map.Entry<String, String> tpool : threadPools.entries()) |
| { |
| System.out.printf("%-25s%10s%10s%15s%10s%18s%n", |
| tpool.getValue(), |
| probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "ActiveTasks"), |
| probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "PendingTasks"), |
| probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "CompletedTasks"), |
| probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "CurrentlyBlockedTasks"), |
| probe.getThreadPoolMetric(tpool.getKey(), tpool.getValue(), "TotalBlockedTasks")); |
| } |
| |
| System.out.printf("%n%-20s%10s%n", "Message type", "Dropped"); |
| for (Map.Entry<String, Integer> entry : probe.getDroppedMessages().entrySet()) |
| System.out.printf("%-20s%10s%n", entry.getKey(), entry.getValue()); |
| } |
| } |