http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2bf59208/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocator.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocator.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocator.html index dc4399b..a628974 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocator.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocator.html @@ -26,148 +26,147 @@ <span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.client;<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.TableName.META_TABLE_NAME;<a name="line.20"></a> -<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil.findException;<a name="line.21"></a> -<span class="sourceLineNo">022</span>import static org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil.isMetaClearingException;<a name="line.22"></a> -<span class="sourceLineNo">023</span><a name="line.23"></a> -<span class="sourceLineNo">024</span>import org.apache.hbase.thirdparty.io.netty.util.HashedWheelTimer;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hbase.thirdparty.io.netty.util.Timeout;<a name="line.25"></a> -<span class="sourceLineNo">026</span><a name="line.26"></a> -<span class="sourceLineNo">027</span>import java.util.concurrent.CompletableFuture;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import java.util.concurrent.TimeUnit;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import java.util.function.Consumer;<a name="line.29"></a> -<span class="sourceLineNo">030</span>import java.util.function.Function;<a name="line.30"></a> -<span class="sourceLineNo">031</span>import java.util.function.Supplier;<a name="line.31"></a> -<span class="sourceLineNo">032</span><a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.33"></a> -<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.TableName;<a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.slf4j.Logger;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.slf4j.LoggerFactory;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.exceptions.RegionMovedException;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.39"></a> -<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.40"></a> -<span class="sourceLineNo">041</span><a name="line.41"></a> -<span class="sourceLineNo">042</span>/**<a name="line.42"></a> -<span class="sourceLineNo">043</span> * The asynchronous region locator.<a name="line.43"></a> -<span class="sourceLineNo">044</span> */<a name="line.44"></a> -<span class="sourceLineNo">045</span>@InterfaceAudience.Private<a name="line.45"></a> -<span class="sourceLineNo">046</span>class AsyncRegionLocator {<a name="line.46"></a> +<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.util.FutureUtils.addListener;<a name="line.21"></a> +<span class="sourceLineNo">022</span><a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.concurrent.CompletableFuture;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.concurrent.TimeUnit;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.function.Supplier;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HBaseIOException;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.RegionException;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.TableName;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.exceptions.TimeoutIOException;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.32"></a> +<span class="sourceLineNo">033</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.33"></a> +<span class="sourceLineNo">034</span>import org.slf4j.Logger;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.slf4j.LoggerFactory;<a name="line.35"></a> +<span class="sourceLineNo">036</span><a name="line.36"></a> +<span class="sourceLineNo">037</span>import org.apache.hbase.thirdparty.io.netty.util.HashedWheelTimer;<a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hbase.thirdparty.io.netty.util.Timeout;<a name="line.38"></a> +<span class="sourceLineNo">039</span><a name="line.39"></a> +<span class="sourceLineNo">040</span>/**<a name="line.40"></a> +<span class="sourceLineNo">041</span> * The asynchronous region locator.<a name="line.41"></a> +<span class="sourceLineNo">042</span> */<a name="line.42"></a> +<span class="sourceLineNo">043</span>@InterfaceAudience.Private<a name="line.43"></a> +<span class="sourceLineNo">044</span>class AsyncRegionLocator {<a name="line.44"></a> +<span class="sourceLineNo">045</span><a name="line.45"></a> +<span class="sourceLineNo">046</span> private static final Logger LOG = LoggerFactory.getLogger(AsyncRegionLocator.class);<a name="line.46"></a> <span class="sourceLineNo">047</span><a name="line.47"></a> -<span class="sourceLineNo">048</span> private static final Logger LOG = LoggerFactory.getLogger(AsyncRegionLocator.class);<a name="line.48"></a> +<span class="sourceLineNo">048</span> private final HashedWheelTimer retryTimer;<a name="line.48"></a> <span class="sourceLineNo">049</span><a name="line.49"></a> -<span class="sourceLineNo">050</span> private final HashedWheelTimer retryTimer;<a name="line.50"></a> +<span class="sourceLineNo">050</span> private final AsyncMetaRegionLocator metaRegionLocator;<a name="line.50"></a> <span class="sourceLineNo">051</span><a name="line.51"></a> -<span class="sourceLineNo">052</span> private final AsyncMetaRegionLocator metaRegionLocator;<a name="line.52"></a> +<span class="sourceLineNo">052</span> private final AsyncNonMetaRegionLocator nonMetaRegionLocator;<a name="line.52"></a> <span class="sourceLineNo">053</span><a name="line.53"></a> -<span class="sourceLineNo">054</span> private final AsyncNonMetaRegionLocator nonMetaRegionLocator;<a name="line.54"></a> -<span class="sourceLineNo">055</span><a name="line.55"></a> -<span class="sourceLineNo">056</span> AsyncRegionLocator(AsyncConnectionImpl conn, HashedWheelTimer retryTimer) {<a name="line.56"></a> -<span class="sourceLineNo">057</span> this.metaRegionLocator = new AsyncMetaRegionLocator(conn.registry);<a name="line.57"></a> -<span class="sourceLineNo">058</span> this.nonMetaRegionLocator = new AsyncNonMetaRegionLocator(conn);<a name="line.58"></a> -<span class="sourceLineNo">059</span> this.retryTimer = retryTimer;<a name="line.59"></a> -<span class="sourceLineNo">060</span> }<a name="line.60"></a> -<span class="sourceLineNo">061</span><a name="line.61"></a> -<span class="sourceLineNo">062</span> private CompletableFuture<HRegionLocation> withTimeout(CompletableFuture<HRegionLocation> future,<a name="line.62"></a> -<span class="sourceLineNo">063</span> long timeoutNs, Supplier<String> timeoutMsg) {<a name="line.63"></a> -<span class="sourceLineNo">064</span> if (future.isDone() || timeoutNs <= 0) {<a name="line.64"></a> -<span class="sourceLineNo">065</span> return future;<a name="line.65"></a> -<span class="sourceLineNo">066</span> }<a name="line.66"></a> -<span class="sourceLineNo">067</span> Timeout timeoutTask = retryTimer.newTimeout(t -> {<a name="line.67"></a> -<span class="sourceLineNo">068</span> if (future.isDone()) {<a name="line.68"></a> -<span class="sourceLineNo">069</span> return;<a name="line.69"></a> -<span class="sourceLineNo">070</span> }<a name="line.70"></a> -<span class="sourceLineNo">071</span> future.completeExceptionally(new TimeoutIOException(timeoutMsg.get()));<a name="line.71"></a> -<span class="sourceLineNo">072</span> }, timeoutNs, TimeUnit.NANOSECONDS);<a name="line.72"></a> -<span class="sourceLineNo">073</span> return future.whenComplete((loc, error) -> {<a name="line.73"></a> -<span class="sourceLineNo">074</span> if (error != null && error.getClass() != TimeoutIOException.class) {<a name="line.74"></a> -<span class="sourceLineNo">075</span> // cancel timeout task if we are not completed by it.<a name="line.75"></a> -<span class="sourceLineNo">076</span> timeoutTask.cancel();<a name="line.76"></a> -<span class="sourceLineNo">077</span> }<a name="line.77"></a> -<span class="sourceLineNo">078</span> });<a name="line.78"></a> -<span class="sourceLineNo">079</span> }<a name="line.79"></a> -<span class="sourceLineNo">080</span><a name="line.80"></a> -<span class="sourceLineNo">081</span> CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,<a name="line.81"></a> -<span class="sourceLineNo">082</span> RegionLocateType type, boolean reload, long timeoutNs) {<a name="line.82"></a> -<span class="sourceLineNo">083</span> // meta region can not be split right now so we always call the same method.<a name="line.83"></a> -<span class="sourceLineNo">084</span> // Change it later if the meta table can have more than one regions.<a name="line.84"></a> -<span class="sourceLineNo">085</span> CompletableFuture<HRegionLocation> future =<a name="line.85"></a> -<span class="sourceLineNo">086</span> tableName.equals(META_TABLE_NAME) ? metaRegionLocator.getRegionLocation(reload)<a name="line.86"></a> -<span class="sourceLineNo">087</span> : nonMetaRegionLocator.getRegionLocation(tableName, row, type, reload);<a name="line.87"></a> -<span class="sourceLineNo">088</span> return withTimeout(future, timeoutNs,<a name="line.88"></a> -<span class="sourceLineNo">089</span> () -> "Timeout(" + TimeUnit.NANOSECONDS.toMillis(timeoutNs) +<a name="line.89"></a> -<span class="sourceLineNo">090</span> "ms) waiting for region location for " + tableName + ", row='" +<a name="line.90"></a> -<span class="sourceLineNo">091</span> Bytes.toStringBinary(row) + "'");<a name="line.91"></a> -<span class="sourceLineNo">092</span> }<a name="line.92"></a> -<span class="sourceLineNo">093</span><a name="line.93"></a> -<span class="sourceLineNo">094</span> CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,<a name="line.94"></a> -<span class="sourceLineNo">095</span> RegionLocateType type, long timeoutNs) {<a name="line.95"></a> -<span class="sourceLineNo">096</span> return getRegionLocation(tableName, row, type, false, timeoutNs);<a name="line.96"></a> -<span class="sourceLineNo">097</span> }<a name="line.97"></a> -<span class="sourceLineNo">098</span><a name="line.98"></a> -<span class="sourceLineNo">099</span> static boolean canUpdate(HRegionLocation loc, HRegionLocation oldLoc) {<a name="line.99"></a> -<span class="sourceLineNo">100</span> // Do not need to update if no such location, or the location is newer, or the location is not<a name="line.100"></a> -<span class="sourceLineNo">101</span> // same with us<a name="line.101"></a> -<span class="sourceLineNo">102</span> return oldLoc != null && oldLoc.getSeqNum() <= loc.getSeqNum() &&<a name="line.102"></a> -<span class="sourceLineNo">103</span> oldLoc.getServerName().equals(loc.getServerName());<a name="line.103"></a> -<span class="sourceLineNo">104</span> }<a name="line.104"></a> -<span class="sourceLineNo">105</span><a name="line.105"></a> -<span class="sourceLineNo">106</span> static void updateCachedLocation(HRegionLocation loc, Throwable exception,<a name="line.106"></a> -<span class="sourceLineNo">107</span> Function<HRegionLocation, HRegionLocation> cachedLocationSupplier,<a name="line.107"></a> -<span class="sourceLineNo">108</span> Consumer<HRegionLocation> addToCache, Consumer<HRegionLocation> removeFromCache) {<a name="line.108"></a> -<span class="sourceLineNo">109</span> HRegionLocation oldLoc = cachedLocationSupplier.apply(loc);<a name="line.109"></a> -<span class="sourceLineNo">110</span> if (LOG.isDebugEnabled()) {<a name="line.110"></a> -<span class="sourceLineNo">111</span> LOG.debug("Try updating " + loc + ", the old value is " + oldLoc, exception);<a name="line.111"></a> -<span class="sourceLineNo">112</span> }<a name="line.112"></a> -<span class="sourceLineNo">113</span> if (!canUpdate(loc, oldLoc)) {<a name="line.113"></a> -<span class="sourceLineNo">114</span> return;<a name="line.114"></a> -<span class="sourceLineNo">115</span> }<a name="line.115"></a> -<span class="sourceLineNo">116</span> Throwable cause = findException(exception);<a name="line.116"></a> -<span class="sourceLineNo">117</span> if (LOG.isDebugEnabled()) {<a name="line.117"></a> -<span class="sourceLineNo">118</span> LOG.debug("The actual exception when updating " + loc, cause);<a name="line.118"></a> -<span class="sourceLineNo">119</span> }<a name="line.119"></a> -<span class="sourceLineNo">120</span> if (cause == null || !isMetaClearingException(cause)) {<a name="line.120"></a> -<span class="sourceLineNo">121</span> if (LOG.isDebugEnabled()) {<a name="line.121"></a> -<span class="sourceLineNo">122</span> LOG.debug(<a name="line.122"></a> -<span class="sourceLineNo">123</span> "Will not update " + loc + " because the exception is null or not the one we care about");<a name="line.123"></a> -<span class="sourceLineNo">124</span> }<a name="line.124"></a> -<span class="sourceLineNo">125</span> return;<a name="line.125"></a> -<span class="sourceLineNo">126</span> }<a name="line.126"></a> -<span class="sourceLineNo">127</span> if (cause instanceof RegionMovedException) {<a name="line.127"></a> -<span class="sourceLineNo">128</span> RegionMovedException rme = (RegionMovedException) cause;<a name="line.128"></a> -<span class="sourceLineNo">129</span> HRegionLocation newLoc =<a name="line.129"></a> -<span class="sourceLineNo">130</span> new HRegionLocation(loc.getRegionInfo(), rme.getServerName(), rme.getLocationSeqNum());<a name="line.130"></a> -<span class="sourceLineNo">131</span> if (LOG.isDebugEnabled()) {<a name="line.131"></a> -<span class="sourceLineNo">132</span> LOG.debug(<a name="line.132"></a> -<span class="sourceLineNo">133</span> "Try updating " + loc + " with the new location " + newLoc + " constructed by " + rme);<a name="line.133"></a> -<span class="sourceLineNo">134</span> }<a name="line.134"></a> -<span class="sourceLineNo">135</span> addToCache.accept(newLoc);<a name="line.135"></a> -<span class="sourceLineNo">136</span> } else {<a name="line.136"></a> -<span class="sourceLineNo">137</span> if (LOG.isDebugEnabled()) {<a name="line.137"></a> -<span class="sourceLineNo">138</span> LOG.debug("Try removing " + loc + " from cache");<a name="line.138"></a> -<span class="sourceLineNo">139</span> }<a name="line.139"></a> -<span class="sourceLineNo">140</span> removeFromCache.accept(loc);<a name="line.140"></a> -<span class="sourceLineNo">141</span> }<a name="line.141"></a> -<span class="sourceLineNo">142</span> }<a name="line.142"></a> -<span class="sourceLineNo">143</span><a name="line.143"></a> -<span class="sourceLineNo">144</span> void updateCachedLocation(HRegionLocation loc, Throwable exception) {<a name="line.144"></a> -<span class="sourceLineNo">145</span> if (loc.getRegion().isMetaRegion()) {<a name="line.145"></a> -<span class="sourceLineNo">146</span> metaRegionLocator.updateCachedLocation(loc, exception);<a name="line.146"></a> -<span class="sourceLineNo">147</span> } else {<a name="line.147"></a> -<span class="sourceLineNo">148</span> nonMetaRegionLocator.updateCachedLocation(loc, exception);<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> void clearCache(TableName tableName) {<a name="line.152"></a> -<span class="sourceLineNo">153</span> if (LOG.isDebugEnabled()) {<a name="line.153"></a> -<span class="sourceLineNo">154</span> LOG.debug("Clear meta cache for " + tableName);<a name="line.154"></a> -<span class="sourceLineNo">155</span> }<a name="line.155"></a> -<span class="sourceLineNo">156</span> if (tableName.equals(META_TABLE_NAME)) {<a name="line.156"></a> -<span class="sourceLineNo">157</span> metaRegionLocator.clearCache();<a name="line.157"></a> -<span class="sourceLineNo">158</span> } else {<a name="line.158"></a> -<span class="sourceLineNo">159</span> nonMetaRegionLocator.clearCache(tableName);<a name="line.159"></a> -<span class="sourceLineNo">160</span> }<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">054</span> AsyncRegionLocator(AsyncConnectionImpl conn, HashedWheelTimer retryTimer) {<a name="line.54"></a> +<span class="sourceLineNo">055</span> this.metaRegionLocator = new AsyncMetaRegionLocator(conn.registry);<a name="line.55"></a> +<span class="sourceLineNo">056</span> this.nonMetaRegionLocator = new AsyncNonMetaRegionLocator(conn);<a name="line.56"></a> +<span class="sourceLineNo">057</span> this.retryTimer = retryTimer;<a name="line.57"></a> +<span class="sourceLineNo">058</span> }<a name="line.58"></a> +<span class="sourceLineNo">059</span><a name="line.59"></a> +<span class="sourceLineNo">060</span> private <T> CompletableFuture<T> withTimeout(CompletableFuture<T> future, long timeoutNs,<a name="line.60"></a> +<span class="sourceLineNo">061</span> Supplier<String> timeoutMsg) {<a name="line.61"></a> +<span class="sourceLineNo">062</span> if (future.isDone() || timeoutNs <= 0) {<a name="line.62"></a> +<span class="sourceLineNo">063</span> return future;<a name="line.63"></a> +<span class="sourceLineNo">064</span> }<a name="line.64"></a> +<span class="sourceLineNo">065</span> Timeout timeoutTask = retryTimer.newTimeout(t -> {<a name="line.65"></a> +<span class="sourceLineNo">066</span> if (future.isDone()) {<a name="line.66"></a> +<span class="sourceLineNo">067</span> return;<a name="line.67"></a> +<span class="sourceLineNo">068</span> }<a name="line.68"></a> +<span class="sourceLineNo">069</span> future.completeExceptionally(new TimeoutIOException(timeoutMsg.get()));<a name="line.69"></a> +<span class="sourceLineNo">070</span> }, timeoutNs, TimeUnit.NANOSECONDS);<a name="line.70"></a> +<span class="sourceLineNo">071</span> return future.whenComplete((loc, error) -> {<a name="line.71"></a> +<span class="sourceLineNo">072</span> if (error != null && error.getClass() != TimeoutIOException.class) {<a name="line.72"></a> +<span class="sourceLineNo">073</span> // cancel timeout task if we are not completed by it.<a name="line.73"></a> +<span class="sourceLineNo">074</span> timeoutTask.cancel();<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> }<a name="line.77"></a> +<span class="sourceLineNo">078</span><a name="line.78"></a> +<span class="sourceLineNo">079</span> private boolean isMeta(TableName tableName) {<a name="line.79"></a> +<span class="sourceLineNo">080</span> return TableName.isMetaTableName(tableName);<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> CompletableFuture<RegionLocations> getRegionLocations(TableName tableName, byte[] row,<a name="line.83"></a> +<span class="sourceLineNo">084</span> RegionLocateType type, boolean reload, long timeoutNs) {<a name="line.84"></a> +<span class="sourceLineNo">085</span> CompletableFuture<RegionLocations> future = isMeta(tableName)<a name="line.85"></a> +<span class="sourceLineNo">086</span> ? metaRegionLocator.getRegionLocations(RegionReplicaUtil.DEFAULT_REPLICA_ID, reload)<a name="line.86"></a> +<span class="sourceLineNo">087</span> : nonMetaRegionLocator.getRegionLocations(tableName, row,<a name="line.87"></a> +<span class="sourceLineNo">088</span> RegionReplicaUtil.DEFAULT_REPLICA_ID, type, reload);<a name="line.88"></a> +<span class="sourceLineNo">089</span> return withTimeout(future, timeoutNs,<a name="line.89"></a> +<span class="sourceLineNo">090</span> () -> "Timeout(" + TimeUnit.NANOSECONDS.toMillis(timeoutNs) +<a name="line.90"></a> +<span class="sourceLineNo">091</span> "ms) waiting for region locations for " + tableName + ", row='" +<a name="line.91"></a> +<span class="sourceLineNo">092</span> Bytes.toStringBinary(row) + "'");<a name="line.92"></a> +<span class="sourceLineNo">093</span> }<a name="line.93"></a> +<span class="sourceLineNo">094</span><a name="line.94"></a> +<span class="sourceLineNo">095</span> CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,<a name="line.95"></a> +<span class="sourceLineNo">096</span> int replicaId, RegionLocateType type, boolean reload, long timeoutNs) {<a name="line.96"></a> +<span class="sourceLineNo">097</span> // meta region can not be split right now so we always call the same method.<a name="line.97"></a> +<span class="sourceLineNo">098</span> // Change it later if the meta table can have more than one regions.<a name="line.98"></a> +<span class="sourceLineNo">099</span> CompletableFuture<HRegionLocation> future = new CompletableFuture<>();<a name="line.99"></a> +<span class="sourceLineNo">100</span> CompletableFuture<RegionLocations> locsFuture =<a name="line.100"></a> +<span class="sourceLineNo">101</span> isMeta(tableName) ? metaRegionLocator.getRegionLocations(replicaId, reload)<a name="line.101"></a> +<span class="sourceLineNo">102</span> : nonMetaRegionLocator.getRegionLocations(tableName, row, replicaId, type, reload);<a name="line.102"></a> +<span class="sourceLineNo">103</span> addListener(locsFuture, (locs, error) -> {<a name="line.103"></a> +<span class="sourceLineNo">104</span> if (error != null) {<a name="line.104"></a> +<span class="sourceLineNo">105</span> future.completeExceptionally(error);<a name="line.105"></a> +<span class="sourceLineNo">106</span> return;<a name="line.106"></a> +<span class="sourceLineNo">107</span> }<a name="line.107"></a> +<span class="sourceLineNo">108</span> HRegionLocation loc = locs.getRegionLocation(replicaId);<a name="line.108"></a> +<span class="sourceLineNo">109</span> if (loc == null) {<a name="line.109"></a> +<span class="sourceLineNo">110</span> future<a name="line.110"></a> +<span class="sourceLineNo">111</span> .completeExceptionally(new RegionException("No location for " + tableName + ", row='" +<a name="line.111"></a> +<span class="sourceLineNo">112</span> Bytes.toStringBinary(row) + "', locateType=" + type + ", replicaId=" + replicaId));<a name="line.112"></a> +<span class="sourceLineNo">113</span> } else if (loc.getServerName() == null) {<a name="line.113"></a> +<span class="sourceLineNo">114</span> future.completeExceptionally(new HBaseIOException("No server address listed for region '" +<a name="line.114"></a> +<span class="sourceLineNo">115</span> loc.getRegion().getRegionNameAsString() + ", row='" + Bytes.toStringBinary(row) +<a name="line.115"></a> +<span class="sourceLineNo">116</span> "', locateType=" + type + ", replicaId=" + replicaId));<a name="line.116"></a> +<span class="sourceLineNo">117</span> } else {<a name="line.117"></a> +<span class="sourceLineNo">118</span> future.complete(loc);<a name="line.118"></a> +<span class="sourceLineNo">119</span> }<a name="line.119"></a> +<span class="sourceLineNo">120</span> });<a name="line.120"></a> +<span class="sourceLineNo">121</span> return withTimeout(future, timeoutNs,<a name="line.121"></a> +<span class="sourceLineNo">122</span> () -> "Timeout(" + TimeUnit.NANOSECONDS.toMillis(timeoutNs) +<a name="line.122"></a> +<span class="sourceLineNo">123</span> "ms) waiting for region location for " + tableName + ", row='" + Bytes.toStringBinary(row) +<a name="line.123"></a> +<span class="sourceLineNo">124</span> "', replicaId=" + replicaId);<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> CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,<a name="line.127"></a> +<span class="sourceLineNo">128</span> int replicaId, RegionLocateType type, long timeoutNs) {<a name="line.128"></a> +<span class="sourceLineNo">129</span> return getRegionLocation(tableName, row, replicaId, type, false, timeoutNs);<a name="line.129"></a> +<span class="sourceLineNo">130</span> }<a name="line.130"></a> +<span class="sourceLineNo">131</span><a name="line.131"></a> +<span class="sourceLineNo">132</span> CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,<a name="line.132"></a> +<span class="sourceLineNo">133</span> RegionLocateType type, boolean reload, long timeoutNs) {<a name="line.133"></a> +<span class="sourceLineNo">134</span> return getRegionLocation(tableName, row, RegionReplicaUtil.DEFAULT_REPLICA_ID, type, reload,<a name="line.134"></a> +<span class="sourceLineNo">135</span> timeoutNs);<a name="line.135"></a> +<span class="sourceLineNo">136</span> }<a name="line.136"></a> +<span class="sourceLineNo">137</span><a name="line.137"></a> +<span class="sourceLineNo">138</span> CompletableFuture<HRegionLocation> getRegionLocation(TableName tableName, byte[] row,<a name="line.138"></a> +<span class="sourceLineNo">139</span> RegionLocateType type, long timeoutNs) {<a name="line.139"></a> +<span class="sourceLineNo">140</span> return getRegionLocation(tableName, row, type, false, timeoutNs);<a name="line.140"></a> +<span class="sourceLineNo">141</span> }<a name="line.141"></a> +<span class="sourceLineNo">142</span><a name="line.142"></a> +<span class="sourceLineNo">143</span> void updateCachedLocationOnError(HRegionLocation loc, Throwable exception) {<a name="line.143"></a> +<span class="sourceLineNo">144</span> if (loc.getRegion().isMetaRegion()) {<a name="line.144"></a> +<span class="sourceLineNo">145</span> metaRegionLocator.updateCachedLocationOnError(loc, exception);<a name="line.145"></a> +<span class="sourceLineNo">146</span> } else {<a name="line.146"></a> +<span class="sourceLineNo">147</span> nonMetaRegionLocator.updateCachedLocationOnError(loc, exception);<a name="line.147"></a> +<span class="sourceLineNo">148</span> }<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> void clearCache(TableName tableName) {<a name="line.151"></a> +<span class="sourceLineNo">152</span> if (LOG.isDebugEnabled()) {<a name="line.152"></a> +<span class="sourceLineNo">153</span> LOG.debug("Clear meta cache for " + tableName);<a name="line.153"></a> +<span class="sourceLineNo">154</span> }<a name="line.154"></a> +<span class="sourceLineNo">155</span> if (tableName.equals(META_TABLE_NAME)) {<a name="line.155"></a> +<span class="sourceLineNo">156</span> metaRegionLocator.clearCache();<a name="line.156"></a> +<span class="sourceLineNo">157</span> } else {<a name="line.157"></a> +<span class="sourceLineNo">158</span> nonMetaRegionLocator.clearCache(tableName);<a name="line.158"></a> +<span class="sourceLineNo">159</span> }<a name="line.159"></a> +<span class="sourceLineNo">160</span> }<a name="line.160"></a> +<span class="sourceLineNo">161</span>}<a name="line.161"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2bf59208/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocatorHelper.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocatorHelper.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocatorHelper.html new file mode 100644 index 0000000..08d9716 --- /dev/null +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRegionLocatorHelper.html @@ -0,0 +1,219 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd";> +<html lang="en"> +<head> +<title>Source code</title> +<link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> +</head> +<body> +<div class="sourceContainer"> +<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.client;<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.exceptions.ClientExceptionsUtil.findException;<a name="line.20"></a> +<span class="sourceLineNo">021</span>import static org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil.isMetaClearingException;<a name="line.21"></a> +<span class="sourceLineNo">022</span><a name="line.22"></a> +<span class="sourceLineNo">023</span>import java.util.Arrays;<a name="line.23"></a> +<span class="sourceLineNo">024</span>import java.util.function.Consumer;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import java.util.function.Function;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.commons.lang3.ObjectUtils;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.exceptions.RegionMovedException;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.slf4j.Logger;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.slf4j.LoggerFactory;<a name="line.32"></a> +<span class="sourceLineNo">033</span><a name="line.33"></a> +<span class="sourceLineNo">034</span>/**<a name="line.34"></a> +<span class="sourceLineNo">035</span> * Helper class for asynchronous region locator.<a name="line.35"></a> +<span class="sourceLineNo">036</span> */<a name="line.36"></a> +<span class="sourceLineNo">037</span>@InterfaceAudience.Private<a name="line.37"></a> +<span class="sourceLineNo">038</span>final class AsyncRegionLocatorHelper {<a name="line.38"></a> +<span class="sourceLineNo">039</span><a name="line.39"></a> +<span class="sourceLineNo">040</span> private static final Logger LOG = LoggerFactory.getLogger(AsyncRegionLocatorHelper.class);<a name="line.40"></a> +<span class="sourceLineNo">041</span><a name="line.41"></a> +<span class="sourceLineNo">042</span> private AsyncRegionLocatorHelper() {<a name="line.42"></a> +<span class="sourceLineNo">043</span> }<a name="line.43"></a> +<span class="sourceLineNo">044</span><a name="line.44"></a> +<span class="sourceLineNo">045</span> static boolean canUpdateOnError(HRegionLocation loc, HRegionLocation oldLoc) {<a name="line.45"></a> +<span class="sourceLineNo">046</span> // Do not need to update if no such location, or the location is newer, or the location is not<a name="line.46"></a> +<span class="sourceLineNo">047</span> // the same with us<a name="line.47"></a> +<span class="sourceLineNo">048</span> return oldLoc != null && oldLoc.getSeqNum() <= loc.getSeqNum() &&<a name="line.48"></a> +<span class="sourceLineNo">049</span> oldLoc.getServerName().equals(loc.getServerName());<a name="line.49"></a> +<span class="sourceLineNo">050</span> }<a name="line.50"></a> +<span class="sourceLineNo">051</span><a name="line.51"></a> +<span class="sourceLineNo">052</span> static void updateCachedLocationOnError(HRegionLocation loc, Throwable exception,<a name="line.52"></a> +<span class="sourceLineNo">053</span> Function<HRegionLocation, HRegionLocation> cachedLocationSupplier,<a name="line.53"></a> +<span class="sourceLineNo">054</span> Consumer<HRegionLocation> addToCache, Consumer<HRegionLocation> removeFromCache) {<a name="line.54"></a> +<span class="sourceLineNo">055</span> HRegionLocation oldLoc = cachedLocationSupplier.apply(loc);<a name="line.55"></a> +<span class="sourceLineNo">056</span> LOG.debug("Try updating {} , the old value is {}", loc, oldLoc, exception);<a name="line.56"></a> +<span class="sourceLineNo">057</span> if (!canUpdateOnError(loc, oldLoc)) {<a name="line.57"></a> +<span class="sourceLineNo">058</span> return;<a name="line.58"></a> +<span class="sourceLineNo">059</span> }<a name="line.59"></a> +<span class="sourceLineNo">060</span> Throwable cause = findException(exception);<a name="line.60"></a> +<span class="sourceLineNo">061</span> LOG.debug("The actual exception when updating {}", loc, cause);<a name="line.61"></a> +<span class="sourceLineNo">062</span> if (cause == null || !isMetaClearingException(cause)) {<a name="line.62"></a> +<span class="sourceLineNo">063</span> LOG.debug("Will not update {} because the exception is null or not the one we care about",<a name="line.63"></a> +<span class="sourceLineNo">064</span> loc);<a name="line.64"></a> +<span class="sourceLineNo">065</span> return;<a name="line.65"></a> +<span class="sourceLineNo">066</span> }<a name="line.66"></a> +<span class="sourceLineNo">067</span> if (cause instanceof RegionMovedException) {<a name="line.67"></a> +<span class="sourceLineNo">068</span> RegionMovedException rme = (RegionMovedException) cause;<a name="line.68"></a> +<span class="sourceLineNo">069</span> HRegionLocation newLoc =<a name="line.69"></a> +<span class="sourceLineNo">070</span> new HRegionLocation(loc.getRegion(), rme.getServerName(), rme.getLocationSeqNum());<a name="line.70"></a> +<span class="sourceLineNo">071</span> LOG.debug("Try updating {} with the new location {} constructed by {}", loc, newLoc, rme);<a name="line.71"></a> +<span class="sourceLineNo">072</span> addToCache.accept(newLoc);<a name="line.72"></a> +<span class="sourceLineNo">073</span> } else {<a name="line.73"></a> +<span class="sourceLineNo">074</span> LOG.debug("Try removing {} from cache", loc);<a name="line.74"></a> +<span class="sourceLineNo">075</span> removeFromCache.accept(loc);<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><a name="line.78"></a> +<span class="sourceLineNo">079</span> static RegionLocations createRegionLocations(HRegionLocation loc) {<a name="line.79"></a> +<span class="sourceLineNo">080</span> int replicaId = loc.getRegion().getReplicaId();<a name="line.80"></a> +<span class="sourceLineNo">081</span> HRegionLocation[] locs = new HRegionLocation[replicaId + 1];<a name="line.81"></a> +<span class="sourceLineNo">082</span> locs[replicaId] = loc;<a name="line.82"></a> +<span class="sourceLineNo">083</span> return new RegionLocations(locs);<a name="line.83"></a> +<span class="sourceLineNo">084</span> }<a name="line.84"></a> +<span class="sourceLineNo">085</span><a name="line.85"></a> +<span class="sourceLineNo">086</span> /**<a name="line.86"></a> +<span class="sourceLineNo">087</span> * Create a new {@link RegionLocations} based on the given {@code oldLocs}, and replace the<a name="line.87"></a> +<span class="sourceLineNo">088</span> * location for the given {@code replicaId} with the given {@code loc}.<a name="line.88"></a> +<span class="sourceLineNo">089</span> * <p/><a name="line.89"></a> +<span class="sourceLineNo">090</span> * All the {@link RegionLocations} in async locator related class are immutable because we want to<a name="line.90"></a> +<span class="sourceLineNo">091</span> * access them concurrently, so here we need to create a new one, instead of calling<a name="line.91"></a> +<span class="sourceLineNo">092</span> * {@link RegionLocations#updateLocation(HRegionLocation, boolean, boolean)}.<a name="line.92"></a> +<span class="sourceLineNo">093</span> */<a name="line.93"></a> +<span class="sourceLineNo">094</span> static RegionLocations replaceRegionLocation(RegionLocations oldLocs, HRegionLocation loc) {<a name="line.94"></a> +<span class="sourceLineNo">095</span> int replicaId = loc.getRegion().getReplicaId();<a name="line.95"></a> +<span class="sourceLineNo">096</span> HRegionLocation[] locs = oldLocs.getRegionLocations();<a name="line.96"></a> +<span class="sourceLineNo">097</span> locs = Arrays.copyOf(locs, Math.max(replicaId + 1, locs.length));<a name="line.97"></a> +<span class="sourceLineNo">098</span> locs[replicaId] = loc;<a name="line.98"></a> +<span class="sourceLineNo">099</span> return new RegionLocations(locs);<a name="line.99"></a> +<span class="sourceLineNo">100</span> }<a name="line.100"></a> +<span class="sourceLineNo">101</span><a name="line.101"></a> +<span class="sourceLineNo">102</span> /**<a name="line.102"></a> +<span class="sourceLineNo">103</span> * Create a new {@link RegionLocations} based on the given {@code oldLocs}, and remove the<a name="line.103"></a> +<span class="sourceLineNo">104</span> * location for the given {@code replicaId}.<a name="line.104"></a> +<span class="sourceLineNo">105</span> * <p/><a name="line.105"></a> +<span class="sourceLineNo">106</span> * All the {@link RegionLocations} in async locator related class are immutable because we want to<a name="line.106"></a> +<span class="sourceLineNo">107</span> * access them concurrently, so here we need to create a new one, instead of calling<a name="line.107"></a> +<span class="sourceLineNo">108</span> * {@link RegionLocations#remove(int)}.<a name="line.108"></a> +<span class="sourceLineNo">109</span> */<a name="line.109"></a> +<span class="sourceLineNo">110</span> static RegionLocations removeRegionLocation(RegionLocations oldLocs, int replicaId) {<a name="line.110"></a> +<span class="sourceLineNo">111</span> HRegionLocation[] locs = oldLocs.getRegionLocations();<a name="line.111"></a> +<span class="sourceLineNo">112</span> if (locs.length < replicaId + 1) {<a name="line.112"></a> +<span class="sourceLineNo">113</span> // Here we do not modify the oldLocs so it is safe to return it.<a name="line.113"></a> +<span class="sourceLineNo">114</span> return oldLocs;<a name="line.114"></a> +<span class="sourceLineNo">115</span> }<a name="line.115"></a> +<span class="sourceLineNo">116</span> locs = Arrays.copyOf(locs, locs.length);<a name="line.116"></a> +<span class="sourceLineNo">117</span> locs[replicaId] = null;<a name="line.117"></a> +<span class="sourceLineNo">118</span> if (ObjectUtils.firstNonNull(locs) != null) {<a name="line.118"></a> +<span class="sourceLineNo">119</span> return new RegionLocations(locs);<a name="line.119"></a> +<span class="sourceLineNo">120</span> } else {<a name="line.120"></a> +<span class="sourceLineNo">121</span> // if all the locations are null, just return null<a name="line.121"></a> +<span class="sourceLineNo">122</span> return null;<a name="line.122"></a> +<span class="sourceLineNo">123</span> }<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> * Create a new {@link RegionLocations} which is the merging result for the given two<a name="line.127"></a> +<span class="sourceLineNo">128</span> * {@link RegionLocations}.<a name="line.128"></a> +<span class="sourceLineNo">129</span> * <p/><a name="line.129"></a> +<span class="sourceLineNo">130</span> * All the {@link RegionLocations} in async locator related class are immutable because we want to<a name="line.130"></a> +<span class="sourceLineNo">131</span> * access them concurrently, so here we need to create a new one, instead of calling<a name="line.131"></a> +<span class="sourceLineNo">132</span> * {@link RegionLocations#mergeLocations(RegionLocations)} directly.<a name="line.132"></a> +<span class="sourceLineNo">133</span> */<a name="line.133"></a> +<span class="sourceLineNo">134</span> static RegionLocations mergeRegionLocations(RegionLocations newLocs, RegionLocations oldLocs) {<a name="line.134"></a> +<span class="sourceLineNo">135</span> RegionLocations locs = new RegionLocations(newLocs.getRegionLocations());<a name="line.135"></a> +<span class="sourceLineNo">136</span> locs.mergeLocations(oldLocs);<a name="line.136"></a> +<span class="sourceLineNo">137</span> return locs;<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> static boolean isGood(RegionLocations locs, int replicaId) {<a name="line.140"></a> +<span class="sourceLineNo">141</span> if (locs == null) {<a name="line.141"></a> +<span class="sourceLineNo">142</span> return false;<a name="line.142"></a> +<span class="sourceLineNo">143</span> }<a name="line.143"></a> +<span class="sourceLineNo">144</span> HRegionLocation loc = locs.getRegionLocation(replicaId);<a name="line.144"></a> +<span class="sourceLineNo">145</span> return loc != null && loc.getServerName() != null;<a name="line.145"></a> +<span class="sourceLineNo">146</span> }<a name="line.146"></a> +<span class="sourceLineNo">147</span>}<a name="line.147"></a> + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +</pre> +</div> +</body> +</html> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2bf59208/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRpcRetryingCaller.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRpcRetryingCaller.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRpcRetryingCaller.html index 92e13cb..f6ec724 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRpcRetryingCaller.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncRpcRetryingCaller.html @@ -96,15 +96,15 @@ <span class="sourceLineNo">088</span> return TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startNs);<a name="line.88"></a> <span class="sourceLineNo">089</span> }<a name="line.89"></a> <span class="sourceLineNo">090</span><a 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