| /* |
| * 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.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.cassandra.db.ColumnFamilyStoreMBean; |
| import org.apache.cassandra.metrics.CassandraMetricsRegistry; |
| import org.apache.cassandra.tools.NodeProbe; |
| |
| public class StatsKeyspace |
| { |
| public List<StatsTable> tables = new ArrayList<>(); |
| private final NodeProbe probe; |
| |
| public String name; |
| public long readCount; |
| public long writeCount; |
| public int pendingFlushes; |
| private double totalReadTime; |
| private double totalWriteTime; |
| |
| public StatsKeyspace(NodeProbe probe, String keyspaceName) |
| { |
| this.probe = probe; |
| this.name = keyspaceName; |
| } |
| |
| public void add(ColumnFamilyStoreMBean table) |
| { |
| String tableName = table.getTableName(); |
| long tableWriteCount = ((CassandraMetricsRegistry.JmxTimerMBean) probe.getColumnFamilyMetric(name, tableName, "WriteLatency")).getCount(); |
| long tableReadCount = ((CassandraMetricsRegistry.JmxTimerMBean) probe.getColumnFamilyMetric(name, tableName, "ReadLatency")).getCount(); |
| |
| if (tableReadCount > 0) |
| { |
| readCount += tableReadCount; |
| totalReadTime += (long) probe.getColumnFamilyMetric(name, tableName, "ReadTotalLatency"); |
| } |
| if (tableWriteCount > 0) |
| { |
| writeCount += tableWriteCount; |
| totalWriteTime += (long) probe.getColumnFamilyMetric(name, tableName, "WriteTotalLatency"); |
| } |
| pendingFlushes += (long) probe.getColumnFamilyMetric(name, tableName, "PendingFlushes"); |
| } |
| |
| public double readLatency() |
| { |
| return readCount > 0 |
| ? totalReadTime / readCount / 1000 |
| : Double.NaN; |
| } |
| |
| public double writeLatency() |
| { |
| return writeCount > 0 |
| ? totalWriteTime / writeCount / 1000 |
| : Double.NaN; |
| } |
| } |