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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;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import static org.apache.hadoop.hbase.util.FutureUtils.addListener;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.Arrays;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Collections;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.List;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Map;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.NavigableMap;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.Optional;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import java.util.SortedMap;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import java.util.concurrent.CompletableFuture;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import java.util.regex.Matcher;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import java.util.regex.Pattern;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import java.util.stream.Collectors;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.MetaTableAccessor.CollectingVisitor;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.MetaTableAccessor.QueryType;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.MetaTableAccessor.Visitor;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.AdvancedScanResultConsumer;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.AsyncTable;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.Consistency;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Get;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.client.RegionReplicaUtil;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.client.Result;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.client.Scan.ReadType;<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.client.TableState;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.exceptions.DeserializationException;<a name="line.48"></a> |
| <span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span>import org.slf4j.Logger;<a name="line.52"></a> |
| <span class="sourceLineNo">053</span>import org.slf4j.LoggerFactory;<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span>/**<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * The asynchronous meta table accessor. Used to read/write region and assignment information store<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * in <code>hbase:meta</code>.<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * @since 2.0.0<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> */<a name="line.59"></a> |
| <span class="sourceLineNo">060</span>@InterfaceAudience.Private<a name="line.60"></a> |
| <span class="sourceLineNo">061</span>public class AsyncMetaTableAccessor {<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> private static final Logger LOG = LoggerFactory.getLogger(AsyncMetaTableAccessor.class);<a name="line.63"></a> |
| <span class="sourceLineNo">064</span><a name="line.64"></a> |
| <span class="sourceLineNo">065</span><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> /** The delimiter for meta columns for replicaIds &gt; 0 */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private static final char META_REPLICA_ID_DELIMITER = '_';<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /** A regex for parsing server columns from meta. See above javadoc for meta layout */<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> private static final Pattern SERVER_COLUMN_PATTERN = Pattern<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> .compile("^server(_[0-9a-fA-F]{4})?$");<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> public static CompletableFuture<Boolean> tableExists(AsyncTable<?> metaTable,<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> TableName tableName) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> return getTableState(metaTable, tableName).thenApply(Optional::isPresent);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> public static CompletableFuture<Optional<TableState>> getTableState(AsyncTable<?> metaTable,<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> TableName tableName) {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> CompletableFuture<Optional<TableState>> future = new CompletableFuture<>();<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> Get get = new Get(tableName.getName()).addColumn(getTableFamily(), getStateColumn());<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> addListener(metaTable.get(get), (result, error) -> {<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> if (error != null) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> future.completeExceptionally(error);<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> return;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> }<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> try {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> future.complete(getTableState(result));<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> } catch (IOException e) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> future.completeExceptionally(e);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> });<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return future;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<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> * Returns the HRegionLocation from meta for the given region<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * @param metaTable<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * @param regionName region we're looking for<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * @return HRegionLocation for the given region<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> */<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> public static CompletableFuture<Optional<HRegionLocation>> getRegionLocation(<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> AsyncTable<?> metaTable, byte[] regionName) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> CompletableFuture<Optional<HRegionLocation>> future = new CompletableFuture<>();<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> try {<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> RegionInfo parsedRegionInfo = MetaTableAccessor.parseRegionInfoFromRegionName(regionName);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> addListener(metaTable.get(new Get(MetaTableAccessor.getMetaKeyForRegion(parsedRegionInfo))<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> .addFamily(HConstants.CATALOG_FAMILY)), (r, err) -> {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> if (err != null) {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> future.completeExceptionally(err);<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> return;<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> future.complete(getRegionLocations(r)<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> .map(locations -> locations.getRegionLocation(parsedRegionInfo.getReplicaId())));<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> });<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> } catch (IOException parseEx) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> LOG.warn("Failed to parse the passed region name: " + Bytes.toStringBinary(regionName));<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> future.completeExceptionally(parseEx);<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> return future;<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> }<a name="line.121"></a> |
| <span class="sourceLineNo">122</span><a name="line.122"></a> |
| <span class="sourceLineNo">123</span> /**<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> * Returns the HRegionLocation from meta for the given encoded region name<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> * @param metaTable<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> * @param encodedRegionName region we're looking for<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> * @return HRegionLocation for the given region<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> */<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> public static CompletableFuture<Optional<HRegionLocation>> getRegionLocationWithEncodedName(<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> AsyncTable<?> metaTable, byte[] encodedRegionName) {<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> CompletableFuture<Optional<HRegionLocation>> future = new CompletableFuture<>();<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> addListener(<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> metaTable<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> .scanAll(new Scan().setReadType(ReadType.PREAD).addFamily(HConstants.CATALOG_FAMILY)),<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> (results, err) -> {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> if (err != null) {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> future.completeExceptionally(err);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> return;<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> }<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> String encodedRegionNameStr = Bytes.toString(encodedRegionName);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> results.stream().filter(result -> !result.isEmpty())<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> .filter(result -> MetaTableAccessor.getRegionInfo(result) != null).forEach(result -> {<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> getRegionLocations(result).ifPresent(locations -> {<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> for (HRegionLocation location : locations.getRegionLocations()) {<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> if (location != null &&<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> encodedRegionNameStr.equals(location.getRegion().getEncodedName())) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> future.complete(Optional.of(location));<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> return;<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> });<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> });<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> future.complete(Optional.empty());<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> });<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> return future;<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> private static Optional<TableState> getTableState(Result r) throws IOException {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> Cell cell = r.getColumnLatestCell(getTableFamily(), getStateColumn());<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> if (cell == null) return Optional.empty();<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> try {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> return Optional.of(TableState.parseFrom(<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> TableName.valueOf(r.getRow()),<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> Arrays.copyOfRange(cell.getValueArray(), cell.getValueOffset(), cell.getValueOffset()<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> + cell.getValueLength())));<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> } catch (DeserializationException e) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> throw new IOException("Failed to parse table state from result: " + r, e);<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<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> /**<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> * Used to get all region locations for the specific table.<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> * @param metaTable<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> * @param tableName table we're looking for, can be null for getting all regions<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> * @return the list of region locations. The return value will be wrapped by a<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> * {@link CompletableFuture}.<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> */<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> public static CompletableFuture<List<HRegionLocation>> getTableHRegionLocations(<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> AsyncTable<AdvancedScanResultConsumer> metaTable, Optional<TableName> tableName) {<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> CompletableFuture<List<HRegionLocation>> future = new CompletableFuture<>();<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> addListener(getTableRegionsAndLocations(metaTable, tableName, true), (locations, err) -> {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> if (err != null) {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> future.completeExceptionally(err);<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> } else if (locations == null || locations.isEmpty()) {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> future.complete(Collections.emptyList());<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> } else {<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> List<HRegionLocation> regionLocations =<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> locations.stream().map(loc -> new HRegionLocation(loc.getFirst(), loc.getSecond()))<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> .collect(Collectors.toList());<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> future.complete(regionLocations);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> }<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> });<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> return future;<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span><a name="line.195"></a> |
| <span class="sourceLineNo">196</span> /**<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> * Used to get table regions' info and server.<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> * @param metaTable<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> * @param tableName table we're looking for, can be null for getting all regions<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> * @param excludeOfflinedSplitParents don't return split parents<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> * @return the list of regioninfos and server. The return value will be wrapped by a<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> * {@link CompletableFuture}.<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> */<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> private static CompletableFuture<List<Pair<RegionInfo, ServerName>>> getTableRegionsAndLocations(<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> AsyncTable<AdvancedScanResultConsumer> metaTable, final Optional<TableName> tableName,<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> final boolean excludeOfflinedSplitParents) {<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> CompletableFuture<List<Pair<RegionInfo, ServerName>>> future = new CompletableFuture<>();<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> if (tableName.filter((t) -> t.equals(TableName.META_TABLE_NAME)).isPresent()) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> future.completeExceptionally(new IOException(<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> "This method can't be used to locate meta regions;" + " use MetaTableLocator instead"));<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> }<a name="line.211"></a> |
| <span class="sourceLineNo">212</span><a name="line.212"></a> |
| <span class="sourceLineNo">213</span> // Make a version of CollectingVisitor that collects RegionInfo and ServerAddress<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> CollectingVisitor<Pair<RegionInfo, ServerName>> visitor = new CollectingVisitor<Pair<RegionInfo, ServerName>>() {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> private Optional<RegionLocations> current = null;<a name="line.215"></a> |
| <span class="sourceLineNo">216</span><a name="line.216"></a> |
| <span class="sourceLineNo">217</span> @Override<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> public boolean visit(Result r) throws IOException {<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> current = getRegionLocations(r);<a name="line.219"></a> |
| <span class="sourceLineNo">220</span> if (!current.isPresent() || current.get().getRegionLocation().getRegion() == null) {<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> LOG.warn("No serialized RegionInfo in " + r);<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> return true;<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> }<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> RegionInfo hri = current.get().getRegionLocation().getRegion();<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> if (excludeOfflinedSplitParents && hri.isSplitParent()) return true;<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> // Else call super and add this Result to the collection.<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> return super.visit(r);<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> }<a name="line.228"></a> |
| <span class="sourceLineNo">229</span><a name="line.229"></a> |
| <span class="sourceLineNo">230</span> @Override<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> void add(Result r) {<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> if (!current.isPresent()) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> return;<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> for (HRegionLocation loc : current.get().getRegionLocations()) {<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> if (loc != null) {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> this.results.add(new Pair<RegionInfo, ServerName>(loc.getRegion(), loc<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> .getServerName()));<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> }<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> }<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> };<a name="line.242"></a> |
| <span class="sourceLineNo">243</span><a name="line.243"></a> |
| <span class="sourceLineNo">244</span> addListener(scanMeta(metaTable, tableName, QueryType.REGION, visitor), (v, error) -> {<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> if (error != null) {<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> future.completeExceptionally(error);<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> return;<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> future.complete(visitor.getResults());<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> });<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> return future;<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span><a name="line.253"></a> |
| <span class="sourceLineNo">254</span> /**<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * Performs a scan of META table for given table.<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> * @param metaTable<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * @param tableName table withing we scan<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> * @param type scanned part of meta<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> * @param visitor Visitor invoked against each row<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> */<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> private static CompletableFuture<Void> scanMeta(AsyncTable<AdvancedScanResultConsumer> metaTable,<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> Optional<TableName> tableName, QueryType type, final Visitor visitor) {<a name="line.262"></a> |
| <span class="sourceLineNo">263</span> return scanMeta(metaTable, getTableStartRowForMeta(tableName, type),<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> getTableStopRowForMeta(tableName, type), type, Integer.MAX_VALUE, visitor);<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> }<a name="line.265"></a> |
| <span class="sourceLineNo">266</span><a name="line.266"></a> |
| <span class="sourceLineNo">267</span> /**<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> * Performs a scan of META table for given table.<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * @param metaTable<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> * @param startRow Where to start the scan<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> * @param stopRow Where to stop the scan<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * @param type scanned part of meta<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * @param maxRows maximum rows to return<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * @param visitor Visitor invoked against each row<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> */<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> private static CompletableFuture<Void> scanMeta(AsyncTable<AdvancedScanResultConsumer> metaTable,<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> Optional<byte[]> startRow, Optional<byte[]> stopRow, QueryType type, int maxRows,<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> final Visitor visitor) {<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> int rowUpperLimit = maxRows > 0 ? maxRows : Integer.MAX_VALUE;<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> Scan scan = getMetaScan(metaTable, rowUpperLimit);<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> for (byte[] family : type.getFamilies()) {<a name="line.281"></a> |
| <span class="sourceLineNo">282</span> scan.addFamily(family);<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> }<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> startRow.ifPresent(scan::withStartRow);<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> stopRow.ifPresent(scan::withStopRow);<a name="line.285"></a> |
| <span class="sourceLineNo">286</span><a name="line.286"></a> |
| <span class="sourceLineNo">287</span> if (LOG.isDebugEnabled()) {<a name="line.287"></a> |
| <span class="sourceLineNo">288</span> LOG.debug("Scanning META" + " starting at row=" + Bytes.toStringBinary(scan.getStartRow())<a name="line.288"></a> |
| <span class="sourceLineNo">289</span> + " stopping at row=" + Bytes.toStringBinary(scan.getStopRow()) + " for max="<a name="line.289"></a> |
| <span class="sourceLineNo">290</span> + rowUpperLimit + " with caching=" + scan.getCaching());<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> }<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> CompletableFuture<Void> future = new CompletableFuture<Void>();<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> metaTable.scan(scan, new MetaTableScanResultConsumer(rowUpperLimit, visitor, future));<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> return future;<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> }<a name="line.296"></a> |
| <span class="sourceLineNo">297</span><a name="line.297"></a> |
| <span class="sourceLineNo">298</span> private static final class MetaTableScanResultConsumer implements AdvancedScanResultConsumer {<a name="line.298"></a> |
| <span class="sourceLineNo">299</span><a name="line.299"></a> |
| <span class="sourceLineNo">300</span> private int currentRowCount;<a name="line.300"></a> |
| <span class="sourceLineNo">301</span><a name="line.301"></a> |
| <span class="sourceLineNo">302</span> private final int rowUpperLimit;<a name="line.302"></a> |
| <span class="sourceLineNo">303</span><a name="line.303"></a> |
| <span class="sourceLineNo">304</span> private final Visitor visitor;<a name="line.304"></a> |
| <span class="sourceLineNo">305</span><a name="line.305"></a> |
| <span class="sourceLineNo">306</span> private final CompletableFuture<Void> future;<a name="line.306"></a> |
| <span class="sourceLineNo">307</span><a name="line.307"></a> |
| <span class="sourceLineNo">308</span> MetaTableScanResultConsumer(int rowUpperLimit, Visitor visitor,<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> CompletableFuture<Void> future) {<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> this.rowUpperLimit = rowUpperLimit;<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> this.visitor = visitor;<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> this.future = future;<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> this.currentRowCount = 0;<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> }<a name="line.314"></a> |
| <span class="sourceLineNo">315</span><a name="line.315"></a> |
| <span class="sourceLineNo">316</span> @Override<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> public void onError(Throwable error) {<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> future.completeExceptionally(error);<a name="line.318"></a> |
| <span class="sourceLineNo">319</span> }<a name="line.319"></a> |
| <span class="sourceLineNo">320</span><a name="line.320"></a> |
| <span class="sourceLineNo">321</span> @Override<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value = "NP_NONNULL_PARAM_VIOLATION",<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> justification = "https://github.com/findbugsproject/findbugs/issues/79")<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> public void onComplete() {<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> future.complete(null);<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> }<a name="line.326"></a> |
| <span class="sourceLineNo">327</span><a name="line.327"></a> |
| <span class="sourceLineNo">328</span> @Override<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> public void onNext(Result[] results, ScanController controller) {<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> boolean terminateScan = false;<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> for (Result result : results) {<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> try {<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> if (!visitor.visit(result)) {<a name="line.333"></a> |
| <span class="sourceLineNo">334</span> terminateScan = true;<a name="line.334"></a> |
| <span class="sourceLineNo">335</span> break;<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> }<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> } catch (Exception e) {<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> future.completeExceptionally(e);<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> terminateScan = true;<a name="line.339"></a> |
| <span class="sourceLineNo">340</span> break;<a name="line.340"></a> |
| <span class="sourceLineNo">341</span> }<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> if (++currentRowCount >= rowUpperLimit) {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> terminateScan = true;<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> break;<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> }<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> }<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> if (terminateScan) {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> controller.terminate();<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> }<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> }<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> }<a name="line.351"></a> |
| <span class="sourceLineNo">352</span><a name="line.352"></a> |
| <span class="sourceLineNo">353</span> private static Scan getMetaScan(AsyncTable<?> metaTable, int rowUpperLimit) {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> Scan scan = new Scan();<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> int scannerCaching = metaTable.getConfiguration().getInt(HConstants.HBASE_META_SCANNER_CACHING,<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> HConstants.DEFAULT_HBASE_META_SCANNER_CACHING);<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> if (metaTable.getConfiguration().getBoolean(HConstants.USE_META_REPLICAS,<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> HConstants.DEFAULT_USE_META_REPLICAS)) {<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> scan.setConsistency(Consistency.TIMELINE);<a name="line.359"></a> |
| <span class="sourceLineNo">360</span> }<a name="line.360"></a> |
| <span class="sourceLineNo">361</span> if (rowUpperLimit <= scannerCaching) {<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> scan.setLimit(rowUpperLimit);<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> }<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> int rows = Math.min(rowUpperLimit, scannerCaching);<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> scan.setCaching(rows);<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> return scan;<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> }<a name="line.367"></a> |
| <span class="sourceLineNo">368</span><a name="line.368"></a> |
| <span class="sourceLineNo">369</span> /**<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> * Returns an HRegionLocationList extracted from the result.<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> * @return an HRegionLocationList containing all locations for the region range or null if we<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> * can't deserialize the result.<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> */<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> private static Optional<RegionLocations> getRegionLocations(final Result r) {<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> if (r == null) return Optional.empty();<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> Optional<RegionInfo> regionInfo = getHRegionInfo(r, getRegionInfoColumn());<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> if (!regionInfo.isPresent()) return Optional.empty();<a name="line.377"></a> |
| <span class="sourceLineNo">378</span><a name="line.378"></a> |
| <span class="sourceLineNo">379</span> List<HRegionLocation> locations = new ArrayList<HRegionLocation>(1);<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> NavigableMap<byte[], NavigableMap<byte[], byte[]>> familyMap = r.getNoVersionMap();<a name="line.380"></a> |
| <span class="sourceLineNo">381</span><a name="line.381"></a> |
| <span class="sourceLineNo">382</span> locations.add(getRegionLocation(r, regionInfo.get(), 0));<a name="line.382"></a> |
| <span class="sourceLineNo">383</span><a name="line.383"></a> |
| <span class="sourceLineNo">384</span> NavigableMap<byte[], byte[]> infoMap = familyMap.get(getCatalogFamily());<a name="line.384"></a> |
| <span class="sourceLineNo">385</span> if (infoMap == null) return Optional.of(new RegionLocations(locations));<a name="line.385"></a> |
| <span class="sourceLineNo">386</span><a name="line.386"></a> |
| <span class="sourceLineNo">387</span> // iterate until all serverName columns are seen<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> int replicaId = 0;<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> byte[] serverColumn = getServerColumn(replicaId);<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> SortedMap<byte[], byte[]> serverMap = null;<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> serverMap = infoMap.tailMap(serverColumn, false);<a name="line.391"></a> |
| <span class="sourceLineNo">392</span><a name="line.392"></a> |
| <span class="sourceLineNo">393</span> if (serverMap.isEmpty()) return Optional.of(new RegionLocations(locations));<a name="line.393"></a> |
| <span class="sourceLineNo">394</span><a name="line.394"></a> |
| <span class="sourceLineNo">395</span> for (Map.Entry<byte[], byte[]> entry : serverMap.entrySet()) {<a name="line.395"></a> |
| <span class="sourceLineNo">396</span> replicaId = parseReplicaIdFromServerColumn(entry.getKey());<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> if (replicaId < 0) {<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> break;<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> }<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> HRegionLocation location = getRegionLocation(r, regionInfo.get(), replicaId);<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> // In case the region replica is newly created, it's location might be null. We usually do not<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> // have HRL's in RegionLocations object with null ServerName. They are handled as null HRLs.<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> if (location == null || location.getServerName() == null) {<a name="line.403"></a> |
| <span class="sourceLineNo">404</span> locations.add(null);<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> } else {<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> locations.add(location);<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> }<a name="line.407"></a> |
| <span class="sourceLineNo">408</span> }<a name="line.408"></a> |
| <span class="sourceLineNo">409</span><a name="line.409"></a> |
| <span class="sourceLineNo">410</span> return Optional.of(new RegionLocations(locations));<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> }<a name="line.411"></a> |
| <span class="sourceLineNo">412</span><a name="line.412"></a> |
| <span class="sourceLineNo">413</span> /**<a name="line.413"></a> |
| <span class="sourceLineNo">414</span> * Returns the HRegionLocation parsed from the given meta row Result<a name="line.414"></a> |
| <span class="sourceLineNo">415</span> * for the given regionInfo and replicaId. The regionInfo can be the default region info<a name="line.415"></a> |
| <span class="sourceLineNo">416</span> * for the replica.<a name="line.416"></a> |
| <span class="sourceLineNo">417</span> * @param r the meta row result<a name="line.417"></a> |
| <span class="sourceLineNo">418</span> * @param regionInfo RegionInfo for default replica<a name="line.418"></a> |
| <span class="sourceLineNo">419</span> * @param replicaId the replicaId for the HRegionLocation<a name="line.419"></a> |
| <span class="sourceLineNo">420</span> * @return HRegionLocation parsed from the given meta row Result for the given replicaId<a name="line.420"></a> |
| <span class="sourceLineNo">421</span> */<a name="line.421"></a> |
| <span class="sourceLineNo">422</span> private static HRegionLocation getRegionLocation(final Result r, final RegionInfo regionInfo,<a name="line.422"></a> |
| <span class="sourceLineNo">423</span> final int replicaId) {<a name="line.423"></a> |
| <span class="sourceLineNo">424</span> Optional<ServerName> serverName = getServerName(r, replicaId);<a name="line.424"></a> |
| <span class="sourceLineNo">425</span> long seqNum = getSeqNumDuringOpen(r, replicaId);<a name="line.425"></a> |
| <span class="sourceLineNo">426</span> RegionInfo replicaInfo = RegionReplicaUtil.getRegionInfoForReplica(regionInfo, replicaId);<a name="line.426"></a> |
| <span class="sourceLineNo">427</span> return new HRegionLocation(replicaInfo, serverName.orElse(null), seqNum);<a name="line.427"></a> |
| <span class="sourceLineNo">428</span> }<a name="line.428"></a> |
| <span class="sourceLineNo">429</span><a name="line.429"></a> |
| <span class="sourceLineNo">430</span> /**<a name="line.430"></a> |
| <span class="sourceLineNo">431</span> * Returns a {@link ServerName} from catalog table {@link Result}.<a name="line.431"></a> |
| <span class="sourceLineNo">432</span> * @param r Result to pull from<a name="line.432"></a> |
| <span class="sourceLineNo">433</span> * @return A ServerName instance.<a name="line.433"></a> |
| <span class="sourceLineNo">434</span> */<a name="line.434"></a> |
| <span class="sourceLineNo">435</span> private static Optional<ServerName> getServerName(final Result r, final int replicaId) {<a name="line.435"></a> |
| <span class="sourceLineNo">436</span> byte[] serverColumn = getServerColumn(replicaId);<a name="line.436"></a> |
| <span class="sourceLineNo">437</span> Cell cell = r.getColumnLatestCell(getCatalogFamily(), serverColumn);<a name="line.437"></a> |
| <span class="sourceLineNo">438</span> if (cell == null || cell.getValueLength() == 0) return Optional.empty();<a name="line.438"></a> |
| <span class="sourceLineNo">439</span> String hostAndPort = Bytes.toString(cell.getValueArray(), cell.getValueOffset(),<a name="line.439"></a> |
| <span class="sourceLineNo">440</span> cell.getValueLength());<a name="line.440"></a> |
| <span class="sourceLineNo">441</span> byte[] startcodeColumn = getStartCodeColumn(replicaId);<a name="line.441"></a> |
| <span class="sourceLineNo">442</span> cell = r.getColumnLatestCell(getCatalogFamily(), startcodeColumn);<a name="line.442"></a> |
| <span class="sourceLineNo">443</span> if (cell == null || cell.getValueLength() == 0) return Optional.empty();<a name="line.443"></a> |
| <span class="sourceLineNo">444</span> try {<a name="line.444"></a> |
| <span class="sourceLineNo">445</span> return Optional.of(ServerName.valueOf(hostAndPort,<a name="line.445"></a> |
| <span class="sourceLineNo">446</span> Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength())));<a name="line.446"></a> |
| <span class="sourceLineNo">447</span> } catch (IllegalArgumentException e) {<a name="line.447"></a> |
| <span class="sourceLineNo">448</span> LOG.error("Ignoring invalid region for server " + hostAndPort + "; cell=" + cell, e);<a name="line.448"></a> |
| <span class="sourceLineNo">449</span> return Optional.empty();<a name="line.449"></a> |
| <span class="sourceLineNo">450</span> }<a name="line.450"></a> |
| <span class="sourceLineNo">451</span> }<a name="line.451"></a> |
| <span class="sourceLineNo">452</span><a name="line.452"></a> |
| <span class="sourceLineNo">453</span> /**<a name="line.453"></a> |
| <span class="sourceLineNo">454</span> * The latest seqnum that the server writing to meta observed when opening the region.<a name="line.454"></a> |
| <span class="sourceLineNo">455</span> * E.g. the seqNum when the result of {@link #getServerName(Result, int)} was written.<a name="line.455"></a> |
| <span class="sourceLineNo">456</span> * @param r Result to pull the seqNum from<a name="line.456"></a> |
| <span class="sourceLineNo">457</span> * @return SeqNum, or HConstants.NO_SEQNUM if there's no value written.<a name="line.457"></a> |
| <span class="sourceLineNo">458</span> */<a name="line.458"></a> |
| <span class="sourceLineNo">459</span> private static long getSeqNumDuringOpen(final Result r, final int replicaId) {<a name="line.459"></a> |
| <span class="sourceLineNo">460</span> Cell cell = r.getColumnLatestCell(getCatalogFamily(), getSeqNumColumn(replicaId));<a name="line.460"></a> |
| <span class="sourceLineNo">461</span> if (cell == null || cell.getValueLength() == 0) return HConstants.NO_SEQNUM;<a name="line.461"></a> |
| <span class="sourceLineNo">462</span> return Bytes.toLong(cell.getValueArray(), cell.getValueOffset(), cell.getValueLength());<a name="line.462"></a> |
| <span class="sourceLineNo">463</span> }<a name="line.463"></a> |
| <span class="sourceLineNo">464</span><a name="line.464"></a> |
| <span class="sourceLineNo">465</span> /**<a name="line.465"></a> |
| <span class="sourceLineNo">466</span> * @param tableName table we're working with<a name="line.466"></a> |
| <span class="sourceLineNo">467</span> * @return start row for scanning META according to query type<a name="line.467"></a> |
| <span class="sourceLineNo">468</span> */<a name="line.468"></a> |
| <span class="sourceLineNo">469</span> private static Optional<byte[]> getTableStartRowForMeta(Optional<TableName> tableName,<a name="line.469"></a> |
| <span class="sourceLineNo">470</span> QueryType type) {<a name="line.470"></a> |
| <span class="sourceLineNo">471</span> return tableName.map((table) -> {<a name="line.471"></a> |
| <span class="sourceLineNo">472</span> switch (type) {<a name="line.472"></a> |
| <span class="sourceLineNo">473</span> case REGION:<a name="line.473"></a> |
| <span class="sourceLineNo">474</span> case REPLICATION:<a name="line.474"></a> |
| <span class="sourceLineNo">475</span> byte[] startRow = new byte[table.getName().length + 2];<a name="line.475"></a> |
| <span class="sourceLineNo">476</span> System.arraycopy(table.getName(), 0, startRow, 0, table.getName().length);<a name="line.476"></a> |
| <span class="sourceLineNo">477</span> startRow[startRow.length - 2] = HConstants.DELIMITER;<a name="line.477"></a> |
| <span class="sourceLineNo">478</span> startRow[startRow.length - 1] = HConstants.DELIMITER;<a name="line.478"></a> |
| <span class="sourceLineNo">479</span> return startRow;<a name="line.479"></a> |
| <span class="sourceLineNo">480</span> case ALL:<a name="line.480"></a> |
| <span class="sourceLineNo">481</span> case TABLE:<a name="line.481"></a> |
| <span class="sourceLineNo">482</span> default:<a name="line.482"></a> |
| <span class="sourceLineNo">483</span> return table.getName();<a name="line.483"></a> |
| <span class="sourceLineNo">484</span> }<a name="line.484"></a> |
| <span class="sourceLineNo">485</span> });<a name="line.485"></a> |
| <span class="sourceLineNo">486</span> }<a name="line.486"></a> |
| <span class="sourceLineNo">487</span><a name="line.487"></a> |
| <span class="sourceLineNo">488</span> /**<a name="line.488"></a> |
| <span class="sourceLineNo">489</span> * @param tableName table we're working with<a name="line.489"></a> |
| <span class="sourceLineNo">490</span> * @return stop row for scanning META according to query type<a name="line.490"></a> |
| <span class="sourceLineNo">491</span> */<a name="line.491"></a> |
| <span class="sourceLineNo">492</span> private static Optional<byte[]> getTableStopRowForMeta(Optional<TableName> tableName,<a name="line.492"></a> |
| <span class="sourceLineNo">493</span> QueryType type) {<a name="line.493"></a> |
| <span class="sourceLineNo">494</span> return tableName.map((table) -> {<a name="line.494"></a> |
| <span class="sourceLineNo">495</span> final byte[] stopRow;<a name="line.495"></a> |
| <span class="sourceLineNo">496</span> switch (type) {<a name="line.496"></a> |
| <span class="sourceLineNo">497</span> case REGION:<a name="line.497"></a> |
| <span class="sourceLineNo">498</span> case REPLICATION:<a name="line.498"></a> |
| <span class="sourceLineNo">499</span> stopRow = new byte[table.getName().length + 3];<a name="line.499"></a> |
| <span class="sourceLineNo">500</span> System.arraycopy(table.getName(), 0, stopRow, 0, table.getName().length);<a name="line.500"></a> |
| <span class="sourceLineNo">501</span> stopRow[stopRow.length - 3] = ' ';<a name="line.501"></a> |
| <span class="sourceLineNo">502</span> stopRow[stopRow.length - 2] = HConstants.DELIMITER;<a name="line.502"></a> |
| <span class="sourceLineNo">503</span> stopRow[stopRow.length - 1] = HConstants.DELIMITER;<a name="line.503"></a> |
| <span class="sourceLineNo">504</span> break;<a name="line.504"></a> |
| <span class="sourceLineNo">505</span> case ALL:<a name="line.505"></a> |
| <span class="sourceLineNo">506</span> case TABLE:<a name="line.506"></a> |
| <span class="sourceLineNo">507</span> default:<a name="line.507"></a> |
| <span class="sourceLineNo">508</span> stopRow = new byte[table.getName().length + 1];<a name="line.508"></a> |
| <span class="sourceLineNo">509</span> System.arraycopy(table.getName(), 0, stopRow, 0, table.getName().length);<a name="line.509"></a> |
| <span class="sourceLineNo">510</span> stopRow[stopRow.length - 1] = ' ';<a name="line.510"></a> |
| <span class="sourceLineNo">511</span> break;<a name="line.511"></a> |
| <span class="sourceLineNo">512</span> }<a name="line.512"></a> |
| <span class="sourceLineNo">513</span> return stopRow;<a name="line.513"></a> |
| <span class="sourceLineNo">514</span> });<a name="line.514"></a> |
| <span class="sourceLineNo">515</span> }<a name="line.515"></a> |
| <span class="sourceLineNo">516</span><a name="line.516"></a> |
| <span class="sourceLineNo">517</span> /**<a name="line.517"></a> |
| <span class="sourceLineNo">518</span> * Returns the RegionInfo object from the column {@link HConstants#CATALOG_FAMILY} and<a name="line.518"></a> |
| <span class="sourceLineNo">519</span> * <code>qualifier</code> of the catalog table result.<a name="line.519"></a> |
| <span class="sourceLineNo">520</span> * @param r a Result object from the catalog table scan<a name="line.520"></a> |
| <span class="sourceLineNo">521</span> * @param qualifier Column family qualifier<a name="line.521"></a> |
| <span class="sourceLineNo">522</span> * @return An RegionInfo instance.<a name="line.522"></a> |
| <span class="sourceLineNo">523</span> */<a name="line.523"></a> |
| <span class="sourceLineNo">524</span> private static Optional<RegionInfo> getHRegionInfo(final Result r, byte[] qualifier) {<a name="line.524"></a> |
| <span class="sourceLineNo">525</span> Cell cell = r.getColumnLatestCell(getCatalogFamily(), qualifier);<a name="line.525"></a> |
| <span class="sourceLineNo">526</span> if (cell == null) return Optional.empty();<a name="line.526"></a> |
| <span class="sourceLineNo">527</span> return Optional.ofNullable(RegionInfo.parseFromOrNull(cell.getValueArray(),<a name="line.527"></a> |
| <span class="sourceLineNo">528</span> cell.getValueOffset(), cell.getValueLength()));<a name="line.528"></a> |
| <span class="sourceLineNo">529</span> }<a name="line.529"></a> |
| <span class="sourceLineNo">530</span><a name="line.530"></a> |
| <span class="sourceLineNo">531</span> /**<a name="line.531"></a> |
| <span class="sourceLineNo">532</span> * Returns the column family used for meta columns.<a name="line.532"></a> |
| <span class="sourceLineNo">533</span> * @return HConstants.CATALOG_FAMILY.<a name="line.533"></a> |
| <span class="sourceLineNo">534</span> */<a name="line.534"></a> |
| <span class="sourceLineNo">535</span> private static byte[] getCatalogFamily() {<a name="line.535"></a> |
| <span class="sourceLineNo">536</span> return HConstants.CATALOG_FAMILY;<a name="line.536"></a> |
| <span class="sourceLineNo">537</span> }<a name="line.537"></a> |
| <span class="sourceLineNo">538</span><a name="line.538"></a> |
| <span class="sourceLineNo">539</span> /**<a name="line.539"></a> |
| <span class="sourceLineNo">540</span> * Returns the column family used for table columns.<a name="line.540"></a> |
| <span class="sourceLineNo">541</span> * @return HConstants.TABLE_FAMILY.<a name="line.541"></a> |
| <span class="sourceLineNo">542</span> */<a name="line.542"></a> |
| <span class="sourceLineNo">543</span> private static byte[] getTableFamily() {<a name="line.543"></a> |
| <span class="sourceLineNo">544</span> return HConstants.TABLE_FAMILY;<a name="line.544"></a> |
| <span class="sourceLineNo">545</span> }<a name="line.545"></a> |
| <span class="sourceLineNo">546</span><a name="line.546"></a> |
| <span class="sourceLineNo">547</span> /**<a name="line.547"></a> |
| <span class="sourceLineNo">548</span> * Returns the column qualifier for serialized region info<a name="line.548"></a> |
| <span class="sourceLineNo">549</span> * @return HConstants.REGIONINFO_QUALIFIER<a name="line.549"></a> |
| <span class="sourceLineNo">550</span> */<a name="line.550"></a> |
| <span class="sourceLineNo">551</span> private static byte[] getRegionInfoColumn() {<a name="line.551"></a> |
| <span class="sourceLineNo">552</span> return HConstants.REGIONINFO_QUALIFIER;<a name="line.552"></a> |
| <span class="sourceLineNo">553</span> }<a name="line.553"></a> |
| <span class="sourceLineNo">554</span><a name="line.554"></a> |
| <span class="sourceLineNo">555</span> /**<a name="line.555"></a> |
| <span class="sourceLineNo">556</span> * Returns the column qualifier for serialized table state<a name="line.556"></a> |
| <span class="sourceLineNo">557</span> * @return HConstants.TABLE_STATE_QUALIFIER<a name="line.557"></a> |
| <span class="sourceLineNo">558</span> */<a name="line.558"></a> |
| <span class="sourceLineNo">559</span> private static byte[] getStateColumn() {<a name="line.559"></a> |
| <span class="sourceLineNo">560</span> return HConstants.TABLE_STATE_QUALIFIER;<a name="line.560"></a> |
| <span class="sourceLineNo">561</span> }<a name="line.561"></a> |
| <span class="sourceLineNo">562</span><a name="line.562"></a> |
| <span class="sourceLineNo">563</span> /**<a name="line.563"></a> |
| <span class="sourceLineNo">564</span> * Returns the column qualifier for server column for replicaId<a name="line.564"></a> |
| <span class="sourceLineNo">565</span> * @param replicaId the replicaId of the region<a name="line.565"></a> |
| <span class="sourceLineNo">566</span> * @return a byte[] for server column qualifier<a name="line.566"></a> |
| <span class="sourceLineNo">567</span> */<a name="line.567"></a> |
| <span class="sourceLineNo">568</span> private static byte[] getServerColumn(int replicaId) {<a name="line.568"></a> |
| <span class="sourceLineNo">569</span> return replicaId == 0<a name="line.569"></a> |
| <span class="sourceLineNo">570</span> ? HConstants.SERVER_QUALIFIER<a name="line.570"></a> |
| <span class="sourceLineNo">571</span> : Bytes.toBytes(HConstants.SERVER_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.571"></a> |
| <span class="sourceLineNo">572</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.572"></a> |
| <span class="sourceLineNo">573</span> }<a name="line.573"></a> |
| <span class="sourceLineNo">574</span><a name="line.574"></a> |
| <span class="sourceLineNo">575</span> /**<a name="line.575"></a> |
| <span class="sourceLineNo">576</span> * Returns the column qualifier for server start code column for replicaId<a name="line.576"></a> |
| <span class="sourceLineNo">577</span> * @param replicaId the replicaId of the region<a name="line.577"></a> |
| <span class="sourceLineNo">578</span> * @return a byte[] for server start code column qualifier<a name="line.578"></a> |
| <span class="sourceLineNo">579</span> */<a name="line.579"></a> |
| <span class="sourceLineNo">580</span> private static byte[] getStartCodeColumn(int replicaId) {<a name="line.580"></a> |
| <span class="sourceLineNo">581</span> return replicaId == 0<a name="line.581"></a> |
| <span class="sourceLineNo">582</span> ? HConstants.STARTCODE_QUALIFIER<a name="line.582"></a> |
| <span class="sourceLineNo">583</span> : Bytes.toBytes(HConstants.STARTCODE_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.583"></a> |
| <span class="sourceLineNo">584</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.584"></a> |
| <span class="sourceLineNo">585</span> }<a name="line.585"></a> |
| <span class="sourceLineNo">586</span><a name="line.586"></a> |
| <span class="sourceLineNo">587</span> /**<a name="line.587"></a> |
| <span class="sourceLineNo">588</span> * Returns the column qualifier for seqNum column for replicaId<a name="line.588"></a> |
| <span class="sourceLineNo">589</span> * @param replicaId the replicaId of the region<a name="line.589"></a> |
| <span class="sourceLineNo">590</span> * @return a byte[] for seqNum column qualifier<a name="line.590"></a> |
| <span class="sourceLineNo">591</span> */<a name="line.591"></a> |
| <span class="sourceLineNo">592</span> private static byte[] getSeqNumColumn(int replicaId) {<a name="line.592"></a> |
| <span class="sourceLineNo">593</span> return replicaId == 0<a name="line.593"></a> |
| <span class="sourceLineNo">594</span> ? HConstants.SEQNUM_QUALIFIER<a name="line.594"></a> |
| <span class="sourceLineNo">595</span> : Bytes.toBytes(HConstants.SEQNUM_QUALIFIER_STR + META_REPLICA_ID_DELIMITER<a name="line.595"></a> |
| <span class="sourceLineNo">596</span> + String.format(RegionInfo.REPLICA_ID_FORMAT, replicaId));<a name="line.596"></a> |
| <span class="sourceLineNo">597</span> }<a name="line.597"></a> |
| <span class="sourceLineNo">598</span><a name="line.598"></a> |
| <span class="sourceLineNo">599</span> /**<a name="line.599"></a> |
| <span class="sourceLineNo">600</span> * Parses the replicaId from the server column qualifier. See top of the class javadoc<a name="line.600"></a> |
| <span class="sourceLineNo">601</span> * for the actual meta layout<a name="line.601"></a> |
| <span class="sourceLineNo">602</span> * @param serverColumn the column qualifier<a name="line.602"></a> |
| <span class="sourceLineNo">603</span> * @return an int for the replicaId<a name="line.603"></a> |
| <span class="sourceLineNo">604</span> */<a name="line.604"></a> |
| <span class="sourceLineNo">605</span> private static int parseReplicaIdFromServerColumn(byte[] serverColumn) {<a name="line.605"></a> |
| <span class="sourceLineNo">606</span> String serverStr = Bytes.toString(serverColumn);<a name="line.606"></a> |
| <span class="sourceLineNo">607</span><a name="line.607"></a> |
| <span class="sourceLineNo">608</span> Matcher matcher = SERVER_COLUMN_PATTERN.matcher(serverStr);<a name="line.608"></a> |
| <span class="sourceLineNo">609</span> if (matcher.matches() && matcher.groupCount() > 0) {<a name="line.609"></a> |
| <span class="sourceLineNo">610</span> String group = matcher.group(1);<a name="line.610"></a> |
| <span class="sourceLineNo">611</span> if (group != null && group.length() > 0) {<a name="line.611"></a> |
| <span class="sourceLineNo">612</span> return Integer.parseInt(group.substring(1), 16);<a name="line.612"></a> |
| <span class="sourceLineNo">613</span> } else {<a name="line.613"></a> |
| <span class="sourceLineNo">614</span> return 0;<a name="line.614"></a> |
| <span class="sourceLineNo">615</span> }<a name="line.615"></a> |
| <span class="sourceLineNo">616</span> }<a name="line.616"></a> |
| <span class="sourceLineNo">617</span> return -1;<a name="line.617"></a> |
| <span class="sourceLineNo">618</span> }<a name="line.618"></a> |
| <span class="sourceLineNo">619</span>}<a name="line.619"></a> |
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| </div> |
| </body> |
| </html> |
