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| <pre><span class="sourceLineNo">001</span>/**<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * limitations under the License.<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> */<a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.replication.regionserver;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import java.util.ArrayList;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.util.HashMap;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.stream.Collectors;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import org.apache.hadoop.fs.Path;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span>/**<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * Holds a batch of WAL entries to replicate, along with some statistics<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> */<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>@InterfaceAudience.Private<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>class WALEntryBatch {<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> // used by recovered replication queue to indicate that all the entries have been read.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> public static final WALEntryBatch NO_MORE_DATA = new WALEntryBatch(0, null);<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span> private List<Pair<Entry, Long>> walEntriesWithSize;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span><a name="line.40"></a> |
| <span class="sourceLineNo">041</span> // last WAL that was read<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> private Path lastWalPath;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> // position in WAL of last entry in this batch<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> private long lastWalPosition = 0;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> // number of distinct row keys in this batch<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> private int nbRowKeys = 0;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> // number of HFiles<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private int nbHFiles = 0;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> // heap size of data we need to replicate<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private long heapSize = 0;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> // save the last sequenceid for each region if the table has serial-replication scope<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> private Map<String, Long> lastSeqIds = new HashMap<>();<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> // indicate that this is the end of the current file<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> private boolean endOfFile;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> /**<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * @param lastWalPath Path of the WAL the last entry in this batch was read from<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> */<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> WALEntryBatch(int maxNbEntries, Path lastWalPath) {<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> this.walEntriesWithSize = new ArrayList<>(maxNbEntries);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> this.lastWalPath = lastWalPath;<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> }<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> static WALEntryBatch endOfFile(Path lastWalPath) {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> WALEntryBatch batch = new WALEntryBatch(0, lastWalPath);<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> batch.setLastWalPosition(-1L);<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> batch.setEndOfFile(true);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> return batch;<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> }<a name="line.70"></a> |
| <span class="sourceLineNo">071</span><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> public void addEntry(Entry entry, long entrySize) {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> walEntriesWithSize.add(new Pair<>(entry, entrySize));<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> }<a name="line.74"></a> |
| <span class="sourceLineNo">075</span><a name="line.75"></a> |
| <span class="sourceLineNo">076</span> /**<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * @return the WAL Entries.<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> */<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> public List<Entry> getWalEntries() {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> return walEntriesWithSize.stream().map(Pair::getFirst).collect(Collectors.toList());<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> /**<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * @return the WAL Entries.<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> */<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> public List<Pair<Entry, Long>> getWalEntriesWithSize() {<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> return walEntriesWithSize;<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> }<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> /**<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> * @return the path of the last WAL that was read.<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> */<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> public Path getLastWalPath() {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> return lastWalPath;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span><a name="line.96"></a> |
| <span class="sourceLineNo">097</span> /**<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * @return the position in the last WAL that was read.<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> */<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> public long getLastWalPosition() {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> return lastWalPosition;<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> public void setLastWalPosition(long lastWalPosition) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> this.lastWalPosition = lastWalPosition;<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> public int getNbEntries() {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> return walEntriesWithSize.size();<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span><a name="line.111"></a> |
| <span class="sourceLineNo">112</span> /**<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * @return the number of distinct row keys in this batch<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> */<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public int getNbRowKeys() {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> return nbRowKeys;<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> /**<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> * @return the number of HFiles in this batch<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> */<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> public int getNbHFiles() {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return nbHFiles;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> /**<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @return total number of operations in this batch<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> */<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> public int getNbOperations() {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> return getNbRowKeys() + getNbHFiles();<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> }<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> /**<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * @return the heap size of this batch<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> */<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> public long getHeapSize() {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> return heapSize;<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span><a name="line.139"></a> |
| <span class="sourceLineNo">140</span> /**<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> * @return the last sequenceid for each region if the table has serial-replication scope<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> */<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> public Map<String, Long> getLastSeqIds() {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> return lastSeqIds;<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> }<a name="line.145"></a> |
| <span class="sourceLineNo">146</span><a name="line.146"></a> |
| <span class="sourceLineNo">147</span> public boolean isEndOfFile() {<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> return endOfFile;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> }<a name="line.149"></a> |
| <span class="sourceLineNo">150</span><a name="line.150"></a> |
| <span class="sourceLineNo">151</span> public void setEndOfFile(boolean endOfFile) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> this.endOfFile = endOfFile;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> public void incrementNbRowKeys(int increment) {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> nbRowKeys += increment;<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> }<a name="line.157"></a> |
| <span class="sourceLineNo">158</span><a name="line.158"></a> |
| <span class="sourceLineNo">159</span> public void incrementNbHFiles(int increment) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> nbHFiles += increment;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> public void incrementHeapSize(long increment) {<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> heapSize += increment;<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> public void setLastSeqId(String region, long sequenceId) {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> lastSeqIds.put(region, sequenceId);<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> }<a name="line.169"></a> |
| <span class="sourceLineNo">170</span><a name="line.170"></a> |
| <span class="sourceLineNo">171</span> @Override<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> public String toString() {<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return "WALEntryBatch [walEntries=" + walEntriesWithSize + ", lastWalPath=" + lastWalPath +<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> ", lastWalPosition=" + lastWalPosition + ", nbRowKeys=" + nbRowKeys + ", nbHFiles=" +<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> nbHFiles + ", heapSize=" + heapSize + ", lastSeqIds=" + lastSeqIds + ", endOfFile=" +<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> endOfFile + "]";<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> }<a name="line.177"></a> |
| <span class="sourceLineNo">178</span>}<a name="line.178"></a> |
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| </pre> |
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