| package org.apache.blur.manager.status; |
| |
| /** |
| * 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. |
| */ |
| import java.lang.management.ManagementFactory; |
| import java.lang.management.ThreadMXBean; |
| import java.util.Map; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.concurrent.atomic.AtomicReference; |
| |
| import org.apache.blur.thrift.generated.BlurQuery; |
| import org.apache.blur.thrift.generated.BlurQueryStatus; |
| import org.apache.blur.thrift.generated.CpuTime; |
| import org.apache.blur.thrift.generated.QueryState; |
| import org.apache.blur.thrift.generated.User; |
| |
| /** |
| * This class is accessed by multiple threads (one for each shard) executing the |
| * query. Tracks status and collects metrics |
| * |
| */ |
| public class QueryStatus implements Comparable<QueryStatus> { |
| |
| private final static boolean CPU_TIME_SUPPORTED = ManagementFactory.getThreadMXBean() |
| .isCurrentThreadCpuTimeSupported(); |
| |
| private final BlurQuery _blurQuery; |
| private final User _user; |
| private final String _table; |
| private final long _startingTime; |
| private boolean _finished = false; |
| private long _finishedTime; |
| private final ThreadMXBean _bean = ManagementFactory.getThreadMXBean(); |
| private final long _ttl; |
| private final AtomicReference<QueryState> _state = new AtomicReference<QueryState>(); |
| private final AtomicInteger _totalShards = new AtomicInteger(); |
| private final AtomicInteger _completeShards = new AtomicInteger(); |
| private final AtomicBoolean _running; |
| private final Map<String, CpuTime> _cpuTimes = new ConcurrentHashMap<String, CpuTime>(); |
| |
| public QueryStatus(long ttl, String table, BlurQuery blurQuery, AtomicBoolean running, User user) { |
| _ttl = ttl; |
| _table = table; |
| _blurQuery = blurQuery; |
| _startingTime = blurQuery.getStartTime(); |
| _running = running; |
| _state.set(QueryState.RUNNING); |
| _user = user; |
| } |
| |
| public QueryStatus attachThread(String shardName) { |
| CpuTime cpuTime = new CpuTime(); |
| if (CPU_TIME_SUPPORTED) { |
| cpuTime.cpuTime = _bean.getCurrentThreadCpuTime(); |
| } else { |
| cpuTime.cpuTime = -1L; |
| } |
| cpuTime.realTime = System.nanoTime(); |
| _cpuTimes.put(shardName, cpuTime); |
| _totalShards.incrementAndGet(); |
| return this; |
| } |
| |
| public QueryStatus deattachThread(String shardName) { |
| _completeShards.incrementAndGet(); |
| CpuTime cpuTime = _cpuTimes.get(shardName); |
| if (CPU_TIME_SUPPORTED) { |
| cpuTime.cpuTime = _bean.getCurrentThreadCpuTime() - cpuTime.cpuTime; |
| } |
| cpuTime.realTime = System.nanoTime() - cpuTime.realTime; |
| return this; |
| } |
| |
| public String getUserUuid() { |
| return _blurQuery.uuid; |
| } |
| |
| public void stopQueryForBackPressure() { |
| _state.set(QueryState.BACK_PRESSURE_INTERRUPTED); |
| _running.set(false); |
| } |
| |
| public void cancelQuery() { |
| _state.set(QueryState.INTERRUPTED); |
| _running.set(false); |
| } |
| |
| public BlurQueryStatus getQueryStatus() { |
| BlurQueryStatus queryStatus = new BlurQueryStatus(); |
| queryStatus.query = _blurQuery; |
| queryStatus.totalShards = _totalShards.get(); |
| queryStatus.completeShards = _completeShards.get(); |
| queryStatus.state = getQueryState(); |
| if (queryStatus.query != null) { |
| queryStatus.uuid = queryStatus.query.uuid; |
| } |
| queryStatus.cpuTimes = _cpuTimes; |
| queryStatus.user = _user; |
| return queryStatus; |
| } |
| |
| private QueryState getQueryState() { |
| return _state.get(); |
| } |
| |
| public String getTable() { |
| return _table; |
| } |
| |
| public boolean isFinished() { |
| return _finished; |
| } |
| |
| public void setFinished(boolean finished) { |
| if (_state.get() == QueryState.RUNNING) { |
| _state.set(QueryState.COMPLETE); |
| } |
| this._finished = finished; |
| _finishedTime = System.currentTimeMillis(); |
| } |
| |
| public long getFinishedTime() { |
| return _finishedTime; |
| } |
| |
| public boolean isValidForCleanUp() { |
| if (!isFinished()) { |
| return false; |
| } |
| if (getFinishedTime() + _ttl < System.currentTimeMillis()) { |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public int compareTo(QueryStatus o) { |
| long startingTime2 = o._startingTime; |
| if (_startingTime == startingTime2) { |
| int hashCode2 = o.hashCode(); |
| return hashCode() < hashCode2 ? -1 : 1; |
| } |
| return _startingTime < startingTime2 ? -1 : 1; |
| } |
| } |