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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.namequeues;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import static org.apache.hadoop.hbase.master.waleventtracker.WALEventTrackerTableCreator.WAL_EVENT_TRACKER_ENABLED_DEFAULT;</span> |
| <span class="source-line-no">021</span><span id="line-21">import static org.apache.hadoop.hbase.master.waleventtracker.WALEventTrackerTableCreator.WAL_EVENT_TRACKER_ENABLED_KEY;</span> |
| <span class="source-line-no">022</span><span id="line-22"></span> |
| <span class="source-line-no">023</span><span id="line-23">import java.util.ArrayDeque;</span> |
| <span class="source-line-no">024</span><span id="line-24">import java.util.Iterator;</span> |
| <span class="source-line-no">025</span><span id="line-25">import java.util.Queue;</span> |
| <span class="source-line-no">026</span><span id="line-26">import org.apache.hadoop.conf.Configuration;</span> |
| <span class="source-line-no">027</span><span id="line-27">import org.apache.hadoop.hbase.CompatibilitySingletonFactory;</span> |
| <span class="source-line-no">028</span><span id="line-28">import org.apache.hadoop.hbase.client.Connection;</span> |
| <span class="source-line-no">029</span><span id="line-29">import org.apache.hadoop.hbase.namequeues.request.NamedQueueGetRequest;</span> |
| <span class="source-line-no">030</span><span id="line-30">import org.apache.hadoop.hbase.namequeues.response.NamedQueueGetResponse;</span> |
| <span class="source-line-no">031</span><span id="line-31">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">032</span><span id="line-32">import org.slf4j.Logger;</span> |
| <span class="source-line-no">033</span><span id="line-33">import org.slf4j.LoggerFactory;</span> |
| <span class="source-line-no">034</span><span id="line-34"></span> |
| <span class="source-line-no">035</span><span id="line-35">import org.apache.hbase.thirdparty.com.google.common.collect.EvictingQueue;</span> |
| <span class="source-line-no">036</span><span id="line-36"></span> |
| <span class="source-line-no">037</span><span id="line-37">/*</span> |
| <span class="source-line-no">038</span><span id="line-38"> This class provides the queue to save Wal events from backing RingBuffer.</span> |
| <span class="source-line-no">039</span><span id="line-39"> */</span> |
| <span class="source-line-no">040</span><span id="line-40">@InterfaceAudience.Private</span> |
| <span class="source-line-no">041</span><span id="line-41">public class WALEventTrackerQueueService implements NamedQueueService {</span> |
| <span class="source-line-no">042</span><span id="line-42"></span> |
| <span class="source-line-no">043</span><span id="line-43"> private EvictingQueue<WALEventTrackerPayload> queue;</span> |
| <span class="source-line-no">044</span><span id="line-44"> private static final String WAL_EVENT_TRACKER_RING_BUFFER_SIZE =</span> |
| <span class="source-line-no">045</span><span id="line-45"> "hbase.regionserver.wal.event.tracker.ringbuffer.size";</span> |
| <span class="source-line-no">046</span><span id="line-46"> private final boolean walEventTrackerEnabled;</span> |
| <span class="source-line-no">047</span><span id="line-47"> private int queueSize;</span> |
| <span class="source-line-no">048</span><span id="line-48"> private MetricsWALEventTrackerSource source = null;</span> |
| <span class="source-line-no">049</span><span id="line-49"></span> |
| <span class="source-line-no">050</span><span id="line-50"> private static final Logger LOG = LoggerFactory.getLogger(WALEventTrackerQueueService.class);</span> |
| <span class="source-line-no">051</span><span id="line-51"></span> |
| <span class="source-line-no">052</span><span id="line-52"> public WALEventTrackerQueueService(Configuration conf) {</span> |
| <span class="source-line-no">053</span><span id="line-53"> this(conf, null);</span> |
| <span class="source-line-no">054</span><span id="line-54"> }</span> |
| <span class="source-line-no">055</span><span id="line-55"></span> |
| <span class="source-line-no">056</span><span id="line-56"> public WALEventTrackerQueueService(Configuration conf, MetricsWALEventTrackerSource source) {</span> |
| <span class="source-line-no">057</span><span id="line-57"> this.walEventTrackerEnabled =</span> |
| <span class="source-line-no">058</span><span id="line-58"> conf.getBoolean(WAL_EVENT_TRACKER_ENABLED_KEY, WAL_EVENT_TRACKER_ENABLED_DEFAULT);</span> |
| <span class="source-line-no">059</span><span id="line-59"> if (!walEventTrackerEnabled) {</span> |
| <span class="source-line-no">060</span><span id="line-60"> return;</span> |
| <span class="source-line-no">061</span><span id="line-61"> }</span> |
| <span class="source-line-no">062</span><span id="line-62"></span> |
| <span class="source-line-no">063</span><span id="line-63"> this.queueSize = conf.getInt(WAL_EVENT_TRACKER_RING_BUFFER_SIZE, 256);</span> |
| <span class="source-line-no">064</span><span id="line-64"> queue = EvictingQueue.create(queueSize);</span> |
| <span class="source-line-no">065</span><span id="line-65"> if (source == null) {</span> |
| <span class="source-line-no">066</span><span id="line-66"> this.source = CompatibilitySingletonFactory.getInstance(MetricsWALEventTrackerSource.class);</span> |
| <span class="source-line-no">067</span><span id="line-67"> } else {</span> |
| <span class="source-line-no">068</span><span id="line-68"> this.source = source;</span> |
| <span class="source-line-no">069</span><span id="line-69"> }</span> |
| <span class="source-line-no">070</span><span id="line-70"> }</span> |
| <span class="source-line-no">071</span><span id="line-71"></span> |
| <span class="source-line-no">072</span><span id="line-72"> @Override</span> |
| <span class="source-line-no">073</span><span id="line-73"> public NamedQueuePayload.NamedQueueEvent getEvent() {</span> |
| <span class="source-line-no">074</span><span id="line-74"> return NamedQueuePayload.NamedQueueEvent.WAL_EVENT_TRACKER;</span> |
| <span class="source-line-no">075</span><span id="line-75"> }</span> |
| <span class="source-line-no">076</span><span id="line-76"></span> |
| <span class="source-line-no">077</span><span id="line-77"> @Override</span> |
| <span class="source-line-no">078</span><span id="line-78"> public void consumeEventFromDisruptor(NamedQueuePayload namedQueuePayload) {</span> |
| <span class="source-line-no">079</span><span id="line-79"> if (!walEventTrackerEnabled) {</span> |
| <span class="source-line-no">080</span><span id="line-80"> return;</span> |
| <span class="source-line-no">081</span><span id="line-81"> }</span> |
| <span class="source-line-no">082</span><span id="line-82"> if (!(namedQueuePayload instanceof WALEventTrackerPayload)) {</span> |
| <span class="source-line-no">083</span><span id="line-83"> LOG.warn("WALEventTrackerQueueService: NamedQueuePayload is not of type"</span> |
| <span class="source-line-no">084</span><span id="line-84"> + " WALEventTrackerPayload.");</span> |
| <span class="source-line-no">085</span><span id="line-85"> return;</span> |
| <span class="source-line-no">086</span><span id="line-86"> }</span> |
| <span class="source-line-no">087</span><span id="line-87"></span> |
| <span class="source-line-no">088</span><span id="line-88"> WALEventTrackerPayload payload = (WALEventTrackerPayload) namedQueuePayload;</span> |
| <span class="source-line-no">089</span><span id="line-89"> if (LOG.isDebugEnabled()) {</span> |
| <span class="source-line-no">090</span><span id="line-90"> LOG.debug("Adding wal event tracker payload " + payload);</span> |
| <span class="source-line-no">091</span><span id="line-91"> }</span> |
| <span class="source-line-no">092</span><span id="line-92"> addToQueue(payload);</span> |
| <span class="source-line-no">093</span><span id="line-93"> }</span> |
| <span class="source-line-no">094</span><span id="line-94"></span> |
| <span class="source-line-no">095</span><span id="line-95"> /*</span> |
| <span class="source-line-no">096</span><span id="line-96"> * Made it default to use it in testing.</span> |
| <span class="source-line-no">097</span><span id="line-97"> */</span> |
| <span class="source-line-no">098</span><span id="line-98"> synchronized void addToQueue(WALEventTrackerPayload payload) {</span> |
| <span class="source-line-no">099</span><span id="line-99"> queue.add(payload);</span> |
| <span class="source-line-no">100</span><span id="line-100"> }</span> |
| <span class="source-line-no">101</span><span id="line-101"></span> |
| <span class="source-line-no">102</span><span id="line-102"> @Override</span> |
| <span class="source-line-no">103</span><span id="line-103"> public boolean clearNamedQueue() {</span> |
| <span class="source-line-no">104</span><span id="line-104"> if (!walEventTrackerEnabled) {</span> |
| <span class="source-line-no">105</span><span id="line-105"> return false;</span> |
| <span class="source-line-no">106</span><span id="line-106"> }</span> |
| <span class="source-line-no">107</span><span id="line-107"> LOG.debug("Clearing wal event tracker queue");</span> |
| <span class="source-line-no">108</span><span id="line-108"> queue.clear();</span> |
| <span class="source-line-no">109</span><span id="line-109"> return true;</span> |
| <span class="source-line-no">110</span><span id="line-110"> }</span> |
| <span class="source-line-no">111</span><span id="line-111"></span> |
| <span class="source-line-no">112</span><span id="line-112"> @Override</span> |
| <span class="source-line-no">113</span><span id="line-113"> public NamedQueueGetResponse getNamedQueueRecords(NamedQueueGetRequest request) {</span> |
| <span class="source-line-no">114</span><span id="line-114"> return null;</span> |
| <span class="source-line-no">115</span><span id="line-115"> }</span> |
| <span class="source-line-no">116</span><span id="line-116"></span> |
| <span class="source-line-no">117</span><span id="line-117"> @Override</span> |
| <span class="source-line-no">118</span><span id="line-118"> public void persistAll(Connection connection) {</span> |
| <span class="source-line-no">119</span><span id="line-119"> if (!walEventTrackerEnabled) {</span> |
| <span class="source-line-no">120</span><span id="line-120"> return;</span> |
| <span class="source-line-no">121</span><span id="line-121"> }</span> |
| <span class="source-line-no">122</span><span id="line-122"> if (queue.isEmpty()) {</span> |
| <span class="source-line-no">123</span><span id="line-123"> LOG.debug("Wal Event tracker queue is empty.");</span> |
| <span class="source-line-no">124</span><span id="line-124"> return;</span> |
| <span class="source-line-no">125</span><span id="line-125"> }</span> |
| <span class="source-line-no">126</span><span id="line-126"></span> |
| <span class="source-line-no">127</span><span id="line-127"> Queue<WALEventTrackerPayload> queue = getWALEventTrackerList();</span> |
| <span class="source-line-no">128</span><span id="line-128"> try {</span> |
| <span class="source-line-no">129</span><span id="line-129"> WALEventTrackerTableAccessor.addWalEventTrackerRows(queue, connection);</span> |
| <span class="source-line-no">130</span><span id="line-130"> } catch (Exception ioe) {</span> |
| <span class="source-line-no">131</span><span id="line-131"> // If we fail to persist the records with retries then just forget about them.</span> |
| <span class="source-line-no">132</span><span id="line-132"> // This is a best effort service.</span> |
| <span class="source-line-no">133</span><span id="line-133"> LOG.error("Failed while persisting wal tracker records", ioe);</span> |
| <span class="source-line-no">134</span><span id="line-134"> // Increment metrics for failed puts</span> |
| <span class="source-line-no">135</span><span id="line-135"> source.incrFailedPuts(queue.size());</span> |
| <span class="source-line-no">136</span><span id="line-136"> }</span> |
| <span class="source-line-no">137</span><span id="line-137"> }</span> |
| <span class="source-line-no">138</span><span id="line-138"></span> |
| <span class="source-line-no">139</span><span id="line-139"> private synchronized Queue<WALEventTrackerPayload> getWALEventTrackerList() {</span> |
| <span class="source-line-no">140</span><span id="line-140"> Queue<WALEventTrackerPayload> retQueue = new ArrayDeque<>();</span> |
| <span class="source-line-no">141</span><span id="line-141"> Iterator<WALEventTrackerPayload> iterator = queue.iterator();</span> |
| <span class="source-line-no">142</span><span id="line-142"> while (iterator.hasNext()) {</span> |
| <span class="source-line-no">143</span><span id="line-143"> retQueue.add(iterator.next());</span> |
| <span class="source-line-no">144</span><span id="line-144"> }</span> |
| <span class="source-line-no">145</span><span id="line-145"> queue.clear();</span> |
| <span class="source-line-no">146</span><span id="line-146"> return retQueue;</span> |
| <span class="source-line-no">147</span><span id="line-147"> }</span> |
| <span class="source-line-no">148</span><span id="line-148">}</span> |
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