| /* |
| * |
| * 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.hadoop.hbase.namequeues; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.hbase.shaded.protobuf.generated.TooSlowLog; |
| import org.apache.hadoop.hbase.slowlog.SlowLogTableAccessor; |
| import org.apache.hbase.thirdparty.com.google.common.collect.EvictingQueue; |
| import org.apache.hbase.thirdparty.com.google.common.collect.Queues; |
| import org.apache.yetus.audience.InterfaceAudience; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Queue; |
| import java.util.concurrent.locks.ReentrantLock; |
| |
| /** |
| * Persistent service provider for Slow/LargeLog events |
| */ |
| @InterfaceAudience.Private |
| public class SlowLogPersistentService { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(SlowLogPersistentService.class); |
| |
| private static final ReentrantLock LOCK = new ReentrantLock(); |
| private static final String SYS_TABLE_QUEUE_SIZE = |
| "hbase.regionserver.slowlog.systable.queue.size"; |
| private static final int DEFAULT_SYS_TABLE_QUEUE_SIZE = 1000; |
| private static final int SYSTABLE_PUT_BATCH_SIZE = 100; |
| |
| private final Queue<TooSlowLog.SlowLogPayload> queueForSysTable; |
| |
| private final Configuration configuration; |
| |
| public SlowLogPersistentService(final Configuration configuration) { |
| this.configuration = configuration; |
| int sysTableQueueSize = |
| configuration.getInt(SYS_TABLE_QUEUE_SIZE, DEFAULT_SYS_TABLE_QUEUE_SIZE); |
| EvictingQueue<TooSlowLog.SlowLogPayload> evictingQueueForTable = |
| EvictingQueue.create(sysTableQueueSize); |
| queueForSysTable = Queues.synchronizedQueue(evictingQueueForTable); |
| } |
| |
| public void addToQueueForSysTable(TooSlowLog.SlowLogPayload slowLogPayload) { |
| queueForSysTable.add(slowLogPayload); |
| } |
| |
| /** |
| * Poll from queueForSysTable and insert 100 records in hbase:slowlog table in single batch |
| */ |
| public void addAllLogsToSysTable() { |
| if (queueForSysTable == null) { |
| LOG.trace("hbase.regionserver.slowlog.systable.enabled is turned off. Exiting."); |
| return; |
| } |
| if (LOCK.isLocked()) { |
| return; |
| } |
| LOCK.lock(); |
| try { |
| List<TooSlowLog.SlowLogPayload> slowLogPayloads = new ArrayList<>(); |
| int i = 0; |
| while (!queueForSysTable.isEmpty()) { |
| slowLogPayloads.add(queueForSysTable.poll()); |
| i++; |
| if (i == SYSTABLE_PUT_BATCH_SIZE) { |
| SlowLogTableAccessor.addSlowLogRecords(slowLogPayloads, this.configuration); |
| slowLogPayloads.clear(); |
| i = 0; |
| } |
| } |
| if (slowLogPayloads.size() > 0) { |
| SlowLogTableAccessor.addSlowLogRecords(slowLogPayloads, this.configuration); |
| } |
| } finally { |
| LOCK.unlock(); |
| } |
| } |
| |
| } |