| /* |
| * 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 java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| |
| import io.airlift.airline.Arguments; |
| import io.airlift.airline.Command; |
| import org.apache.cassandra.tools.NodeProbe; |
| import org.apache.cassandra.tools.NodeTool.NodeToolCmd; |
| |
| @Command(name = "getconcurrency", description = "Get maximum concurrency for processing stages") |
| public class GetConcurrency extends NodeToolCmd |
| { |
| @Arguments(title = "[stage-names]", |
| usage = "[stage-names]", |
| description = "optional list of stage names, otherwise display all stages") |
| private List<String> args = new ArrayList<>(); |
| |
| @Override |
| public void execute(NodeProbe probe) |
| { |
| probe.output().out.printf("%-25s%16s%16s%n", "Stage", "CorePoolSize", "MaximumPoolSize"); |
| probe.getMaximumPoolSizes(args).entrySet().stream() |
| .sorted(Map.Entry.comparingByKey()) |
| .forEach(entry -> |
| probe.output().out.printf("%-25s%16d%16d%n", |
| entry.getKey(), |
| entry.getValue().get(0), |
| entry.getValue().get(1))); |
| |
| } |
| } |