| /* |
| * 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 com.google.common.base.Preconditions.checkArgument; |
| import io.airlift.command.Arguments; |
| import io.airlift.command.Command; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.cassandra.tools.NodeProbe; |
| import org.apache.cassandra.tools.NodeTool.NodeToolCmd; |
| |
| @Command(name = "setcachekeystosave", description = "Set number of keys saved by each cache for faster post-restart warmup. 0 to disable") |
| public class SetCacheKeysToSave extends NodeToolCmd |
| { |
| @Arguments(title = "<key-cache-keys-to-save> <row-cache-keys-to-save> <counter-cache-keys-to-save>", |
| usage = "<key-cache-keys-to-save> <row-cache-keys-to-save> <counter-cache-keys-to-save>", |
| description = "The number of keys saved by each cache. 0 to disable", |
| required = true) |
| private List<Integer> args = new ArrayList<>(); |
| |
| @Override |
| public void execute(NodeProbe probe) |
| { |
| checkArgument(args.size() == 3, "setcachekeystosave requires key-cache-keys-to-save, row-cache-keys-to-save, and counter-cache-keys-to-save args."); |
| probe.setCacheKeysToSave(args.get(0), args.get(1), args.get(2)); |
| } |
| } |