http://git-wip-us.apache.org/repos/asf/hbase-site/blob/624dc6ea/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.AsyncWriter.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.AsyncWriter.html b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.AsyncWriter.html index 0ce87a3..fd57d89 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.AsyncWriter.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.AsyncWriter.html @@ -29,101 +29,118 @@ <span class="sourceLineNo">021</span>import org.apache.hadoop.conf.Configuration;<a name="line.21"></a> <span class="sourceLineNo">022</span>import org.apache.hadoop.fs.FileSystem;<a name="line.22"></a> <span class="sourceLineNo">023</span>import org.apache.hadoop.fs.Path;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.util.CommonFSUtils.StreamLacksCapabilityException;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.util.Pair;<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.apache.yetus.audience.InterfaceStability;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.slf4j.Logger;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.slf4j.LoggerFactory;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hbase.thirdparty.com.google.common.base.Throwables;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<a name="line.37"></a> -<span class="sourceLineNo">038</span><a name="line.38"></a> -<span class="sourceLineNo">039</span>/**<a name="line.39"></a> -<span class="sourceLineNo">040</span> * A WAL provider that use {@link AsyncFSWAL}.<a name="line.40"></a> -<span class="sourceLineNo">041</span> */<a name="line.41"></a> -<span class="sourceLineNo">042</span>@InterfaceAudience.Private<a name="line.42"></a> -<span class="sourceLineNo">043</span>@InterfaceStability.Evolving<a name="line.43"></a> -<span class="sourceLineNo">044</span>public class AsyncFSWALProvider extends AbstractFSWALProvider<AsyncFSWAL> {<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(AsyncFSWALProvider.class);<a name="line.46"></a> -<span class="sourceLineNo">047</span><a name="line.47"></a> -<span class="sourceLineNo">048</span> // Only public so classes back in regionserver.wal can access<a name="line.48"></a> -<span class="sourceLineNo">049</span> public interface AsyncWriter extends WALProvider.AsyncWriter {<a name="line.49"></a> -<span class="sourceLineNo">050</span> /**<a name="line.50"></a> -<span class="sourceLineNo">051</span> * @throws IOException if something goes wrong initializing an output stream<a name="line.51"></a> -<span class="sourceLineNo">052</span> * @throws StreamLacksCapabilityException if the given FileSystem can't provide streams that<a name="line.52"></a> -<span class="sourceLineNo">053</span> * meet the needs of the given Writer implementation.<a name="line.53"></a> -<span class="sourceLineNo">054</span> */<a name="line.54"></a> -<span class="sourceLineNo">055</span> void init(FileSystem fs, Path path, Configuration c, boolean overwritable, long blocksize)<a name="line.55"></a> -<span class="sourceLineNo">056</span> throws IOException, CommonFSUtils.StreamLacksCapabilityException;<a name="line.56"></a> -<span class="sourceLineNo">057</span> }<a name="line.57"></a> -<span class="sourceLineNo">058</span><a name="line.58"></a> -<span class="sourceLineNo">059</span> private EventLoopGroup eventLoopGroup;<a name="line.59"></a> -<span class="sourceLineNo">060</span><a name="line.60"></a> -<span class="sourceLineNo">061</span> private Class<? extends Channel> channelClass;<a name="line.61"></a> -<span class="sourceLineNo">062</span><a name="line.62"></a> -<span class="sourceLineNo">063</span> @Override<a name="line.63"></a> -<span class="sourceLineNo">064</span> protected AsyncFSWAL createWAL() throws IOException {<a name="line.64"></a> -<span class="sourceLineNo">065</span> return new AsyncFSWAL(CommonFSUtils.getWALFileSystem(conf), CommonFSUtils.getWALRootDir(conf),<a name="line.65"></a> -<span class="sourceLineNo">066</span> getWALDirectoryName(factory.factoryId),<a name="line.66"></a> -<span class="sourceLineNo">067</span> getWALArchiveDirectoryName(conf, factory.factoryId), conf, listeners, true, logPrefix,<a name="line.67"></a> -<span class="sourceLineNo">068</span> META_WAL_PROVIDER_ID.equals(providerId) ? META_WAL_PROVIDER_ID : null,<a name="line.68"></a> -<span class="sourceLineNo">069</span> eventLoopGroup, channelClass);<a name="line.69"></a> -<span class="sourceLineNo">070</span> }<a name="line.70"></a> -<span class="sourceLineNo">071</span><a name="line.71"></a> -<span class="sourceLineNo">072</span> @Override<a name="line.72"></a> -<span class="sourceLineNo">073</span> protected void doInit(Configuration conf) throws IOException {<a name="line.73"></a> -<span class="sourceLineNo">074</span> Pair<EventLoopGroup, Class<? extends Channel>> eventLoopGroupAndChannelClass =<a name="line.74"></a> -<span class="sourceLineNo">075</span> NettyAsyncFSWALConfigHelper.getEventLoopConfig(conf);<a name="line.75"></a> -<span class="sourceLineNo">076</span> eventLoopGroup = eventLoopGroupAndChannelClass.getFirst();<a name="line.76"></a> -<span class="sourceLineNo">077</span> channelClass = eventLoopGroupAndChannelClass.getSecond();<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> * Public because of AsyncFSWAL. Should be package-private<a name="line.81"></a> -<span class="sourceLineNo">082</span> */<a name="line.82"></a> -<span class="sourceLineNo">083</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.83"></a> -<span class="sourceLineNo">084</span> boolean overwritable, EventLoopGroup eventLoopGroup,<a name="line.84"></a> -<span class="sourceLineNo">085</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.85"></a> -<span class="sourceLineNo">086</span> return createAsyncWriter(conf, fs, path, overwritable, WALUtil.getWALBlockSize(conf, fs, path),<a name="line.86"></a> -<span class="sourceLineNo">087</span> eventLoopGroup, channelClass);<a name="line.87"></a> -<span class="sourceLineNo">088</span> }<a name="line.88"></a> -<span class="sourceLineNo">089</span><a name="line.89"></a> -<span class="sourceLineNo">090</span> /**<a name="line.90"></a> -<span class="sourceLineNo">091</span> * Public because of AsyncFSWAL. Should be package-private<a name="line.91"></a> -<span class="sourceLineNo">092</span> */<a name="line.92"></a> -<span class="sourceLineNo">093</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.93"></a> -<span class="sourceLineNo">094</span> boolean overwritable, long blocksize, EventLoopGroup eventLoopGroup,<a name="line.94"></a> -<span class="sourceLineNo">095</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.95"></a> -<span class="sourceLineNo">096</span> // Configuration already does caching for the Class lookup.<a name="line.96"></a> -<span class="sourceLineNo">097</span> Class<? extends AsyncWriter> logWriterClass = conf.getClass(<a name="line.97"></a> -<span class="sourceLineNo">098</span> "hbase.regionserver.hlog.async.writer.impl", AsyncProtobufLogWriter.class, AsyncWriter.class);<a name="line.98"></a> -<span class="sourceLineNo">099</span> try {<a name="line.99"></a> -<span class="sourceLineNo">100</span> AsyncWriter writer = logWriterClass.getConstructor(EventLoopGroup.class, Class.class)<a name="line.100"></a> -<span class="sourceLineNo">101</span> .newInstance(eventLoopGroup, channelClass);<a name="line.101"></a> -<span class="sourceLineNo">102</span> writer.init(fs, path, conf, overwritable, blocksize);<a name="line.102"></a> -<span class="sourceLineNo">103</span> return writer;<a name="line.103"></a> -<span class="sourceLineNo">104</span> } catch (Exception e) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> if (e instanceof CommonFSUtils.StreamLacksCapabilityException) {<a name="line.105"></a> -<span class="sourceLineNo">106</span> LOG.error("The RegionServer async write ahead log provider " +<a name="line.106"></a> -<span class="sourceLineNo">107</span> "relies on the ability to call " + e.getMessage() + " for proper operation during " +<a name="line.107"></a> -<span class="sourceLineNo">108</span> "component failures, but the current FileSystem does not support doing so. Please " +<a name="line.108"></a> -<span class="sourceLineNo">109</span> "check the config value of '" + CommonFSUtils.HBASE_WAL_DIR + "' and ensure " +<a name="line.109"></a> -<span class="sourceLineNo">110</span> "it points to a FileSystem mount that has suitable capabilities for output streams.");<a name="line.110"></a> -<span class="sourceLineNo">111</span> } else {<a name="line.111"></a> -<span class="sourceLineNo">112</span> LOG.debug("Error instantiating log writer.", e);<a name="line.112"></a> -<span class="sourceLineNo">113</span> }<a name="line.113"></a> -<span class="sourceLineNo">114</span> Throwables.propagateIfPossible(e, IOException.class);<a name="line.114"></a> -<span class="sourceLineNo">115</span> throw new IOException("cannot get log writer", e);<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span> }<a name="line.117"></a> -<span class="sourceLineNo">118</span>}<a name="line.118"></a> +<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutput;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.CommonFSUtils.StreamLacksCapabilityException;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.Pair;<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.apache.yetus.audience.InterfaceStability;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.slf4j.Logger;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.slf4j.LoggerFactory;<a name="line.36"></a> +<span class="sourceLineNo">037</span><a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hbase.thirdparty.com.google.common.base.Throwables;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<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> * A WAL provider that use {@link AsyncFSWAL}.<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>@InterfaceStability.Evolving<a name="line.46"></a> +<span class="sourceLineNo">047</span>public class AsyncFSWALProvider extends AbstractFSWALProvider<AsyncFSWAL> {<a name="line.47"></a> +<span class="sourceLineNo">048</span><a name="line.48"></a> +<span class="sourceLineNo">049</span> private static final Logger LOG = LoggerFactory.getLogger(AsyncFSWALProvider.class);<a name="line.49"></a> +<span class="sourceLineNo">050</span><a name="line.50"></a> +<span class="sourceLineNo">051</span> // Only public so classes back in regionserver.wal can access<a name="line.51"></a> +<span class="sourceLineNo">052</span> public interface AsyncWriter extends WALProvider.AsyncWriter {<a name="line.52"></a> +<span class="sourceLineNo">053</span> /**<a name="line.53"></a> +<span class="sourceLineNo">054</span> * @throws IOException if something goes wrong initializing an output stream<a name="line.54"></a> +<span class="sourceLineNo">055</span> * @throws StreamLacksCapabilityException if the given FileSystem can't provide streams that<a name="line.55"></a> +<span class="sourceLineNo">056</span> * meet the needs of the given Writer implementation.<a name="line.56"></a> +<span class="sourceLineNo">057</span> */<a name="line.57"></a> +<span class="sourceLineNo">058</span> void init(FileSystem fs, Path path, Configuration c, boolean overwritable, long blocksize)<a name="line.58"></a> +<span class="sourceLineNo">059</span> throws IOException, CommonFSUtils.StreamLacksCapabilityException;<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 EventLoopGroup eventLoopGroup;<a name="line.62"></a> +<span class="sourceLineNo">063</span><a name="line.63"></a> +<span class="sourceLineNo">064</span> private Class<? extends Channel> channelClass;<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> @Override<a name="line.66"></a> +<span class="sourceLineNo">067</span> protected AsyncFSWAL createWAL() throws IOException {<a name="line.67"></a> +<span class="sourceLineNo">068</span> return new AsyncFSWAL(CommonFSUtils.getWALFileSystem(conf), CommonFSUtils.getWALRootDir(conf),<a name="line.68"></a> +<span class="sourceLineNo">069</span> getWALDirectoryName(factory.factoryId),<a name="line.69"></a> +<span class="sourceLineNo">070</span> getWALArchiveDirectoryName(conf, factory.factoryId), conf, listeners, true, logPrefix,<a name="line.70"></a> +<span class="sourceLineNo">071</span> META_WAL_PROVIDER_ID.equals(providerId) ? META_WAL_PROVIDER_ID : null,<a name="line.71"></a> +<span class="sourceLineNo">072</span> eventLoopGroup, channelClass);<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> @Override<a name="line.75"></a> +<span class="sourceLineNo">076</span> protected void doInit(Configuration conf) throws IOException {<a name="line.76"></a> +<span class="sourceLineNo">077</span> Pair<EventLoopGroup, Class<? extends Channel>> eventLoopGroupAndChannelClass =<a name="line.77"></a> +<span class="sourceLineNo">078</span> NettyAsyncFSWALConfigHelper.getEventLoopConfig(conf);<a name="line.78"></a> +<span class="sourceLineNo">079</span> eventLoopGroup = eventLoopGroupAndChannelClass.getFirst();<a name="line.79"></a> +<span class="sourceLineNo">080</span> channelClass = eventLoopGroupAndChannelClass.getSecond();<a name="line.80"></a> +<span class="sourceLineNo">081</span> }<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> /**<a name="line.83"></a> +<span class="sourceLineNo">084</span> * Public because of AsyncFSWAL. Should be package-private<a name="line.84"></a> +<span class="sourceLineNo">085</span> */<a name="line.85"></a> +<span class="sourceLineNo">086</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.86"></a> +<span class="sourceLineNo">087</span> boolean overwritable, EventLoopGroup eventLoopGroup,<a name="line.87"></a> +<span class="sourceLineNo">088</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.88"></a> +<span class="sourceLineNo">089</span> return createAsyncWriter(conf, fs, path, overwritable, WALUtil.getWALBlockSize(conf, fs, path),<a name="line.89"></a> +<span class="sourceLineNo">090</span> eventLoopGroup, channelClass);<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> /**<a name="line.93"></a> +<span class="sourceLineNo">094</span> * Public because of AsyncFSWAL. Should be package-private<a name="line.94"></a> +<span class="sourceLineNo">095</span> */<a name="line.95"></a> +<span class="sourceLineNo">096</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.96"></a> +<span class="sourceLineNo">097</span> boolean overwritable, long blocksize, EventLoopGroup eventLoopGroup,<a name="line.97"></a> +<span class="sourceLineNo">098</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.98"></a> +<span class="sourceLineNo">099</span> // Configuration already does caching for the Class lookup.<a name="line.99"></a> +<span class="sourceLineNo">100</span> Class<? extends AsyncWriter> logWriterClass = conf.getClass(<a name="line.100"></a> +<span class="sourceLineNo">101</span> "hbase.regionserver.hlog.async.writer.impl", AsyncProtobufLogWriter.class, AsyncWriter.class);<a name="line.101"></a> +<span class="sourceLineNo">102</span> try {<a name="line.102"></a> +<span class="sourceLineNo">103</span> AsyncWriter writer = logWriterClass.getConstructor(EventLoopGroup.class, Class.class)<a name="line.103"></a> +<span class="sourceLineNo">104</span> .newInstance(eventLoopGroup, channelClass);<a name="line.104"></a> +<span class="sourceLineNo">105</span> writer.init(fs, path, conf, overwritable, blocksize);<a name="line.105"></a> +<span class="sourceLineNo">106</span> return writer;<a name="line.106"></a> +<span class="sourceLineNo">107</span> } catch (Exception e) {<a name="line.107"></a> +<span class="sourceLineNo">108</span> if (e instanceof CommonFSUtils.StreamLacksCapabilityException) {<a name="line.108"></a> +<span class="sourceLineNo">109</span> LOG.error("The RegionServer async write ahead log provider " +<a name="line.109"></a> +<span class="sourceLineNo">110</span> "relies on the ability to call " + e.getMessage() + " for proper operation during " +<a name="line.110"></a> +<span class="sourceLineNo">111</span> "component failures, but the current FileSystem does not support doing so. Please " +<a name="line.111"></a> +<span class="sourceLineNo">112</span> "check the config value of '" + CommonFSUtils.HBASE_WAL_DIR + "' and ensure " +<a name="line.112"></a> +<span class="sourceLineNo">113</span> "it points to a FileSystem mount that has suitable capabilities for output streams.");<a name="line.113"></a> +<span class="sourceLineNo">114</span> } else {<a name="line.114"></a> +<span class="sourceLineNo">115</span> LOG.debug("Error instantiating log writer.", e);<a name="line.115"></a> +<span class="sourceLineNo">116</span> }<a name="line.116"></a> +<span class="sourceLineNo">117</span> Throwables.propagateIfPossible(e, IOException.class);<a name="line.117"></a> +<span class="sourceLineNo">118</span> throw new IOException("cannot get log writer", e);<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><a name="line.121"></a> +<span class="sourceLineNo">122</span> /**<a name="line.122"></a> +<span class="sourceLineNo">123</span> * Test whether we can load the helper classes for async dfs output.<a name="line.123"></a> +<span class="sourceLineNo">124</span> */<a name="line.124"></a> +<span class="sourceLineNo">125</span> public static boolean load() {<a name="line.125"></a> +<span class="sourceLineNo">126</span> try {<a name="line.126"></a> +<span class="sourceLineNo">127</span> Class.forName(FanOutOneBlockAsyncDFSOutput.class.getName());<a name="line.127"></a> +<span class="sourceLineNo">128</span> Class.forName(FanOutOneBlockAsyncDFSOutputHelper.class.getName());<a name="line.128"></a> +<span class="sourceLineNo">129</span> Class.forName(FanOutOneBlockAsyncDFSOutputSaslHelper.class.getName());<a name="line.129"></a> +<span class="sourceLineNo">130</span> return true;<a name="line.130"></a> +<span class="sourceLineNo">131</span> } catch (Throwable e) {<a name="line.131"></a> +<span class="sourceLineNo">132</span> return false;<a name="line.132"></a> +<span class="sourceLineNo">133</span> }<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span>}<a name="line.135"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/624dc6ea/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.html b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.html index 0ce87a3..fd57d89 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AsyncFSWALProvider.html @@ -29,101 +29,118 @@ <span class="sourceLineNo">021</span>import org.apache.hadoop.conf.Configuration;<a name="line.21"></a> <span class="sourceLineNo">022</span>import org.apache.hadoop.fs.FileSystem;<a name="line.22"></a> <span class="sourceLineNo">023</span>import org.apache.hadoop.fs.Path;<a name="line.23"></a> -<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL;<a name="line.24"></a> -<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter;<a name="line.25"></a> -<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.26"></a> -<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.27"></a> -<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.util.CommonFSUtils.StreamLacksCapabilityException;<a name="line.28"></a> -<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.util.Pair;<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.apache.yetus.audience.InterfaceStability;<a name="line.31"></a> -<span class="sourceLineNo">032</span>import org.slf4j.Logger;<a name="line.32"></a> -<span class="sourceLineNo">033</span>import org.slf4j.LoggerFactory;<a name="line.33"></a> -<span class="sourceLineNo">034</span><a name="line.34"></a> -<span class="sourceLineNo">035</span>import org.apache.hbase.thirdparty.com.google.common.base.Throwables;<a name="line.35"></a> -<span class="sourceLineNo">036</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.36"></a> -<span class="sourceLineNo">037</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<a name="line.37"></a> -<span class="sourceLineNo">038</span><a name="line.38"></a> -<span class="sourceLineNo">039</span>/**<a name="line.39"></a> -<span class="sourceLineNo">040</span> * A WAL provider that use {@link AsyncFSWAL}.<a name="line.40"></a> -<span class="sourceLineNo">041</span> */<a name="line.41"></a> -<span class="sourceLineNo">042</span>@InterfaceAudience.Private<a name="line.42"></a> -<span class="sourceLineNo">043</span>@InterfaceStability.Evolving<a name="line.43"></a> -<span class="sourceLineNo">044</span>public class AsyncFSWALProvider extends AbstractFSWALProvider<AsyncFSWAL> {<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(AsyncFSWALProvider.class);<a name="line.46"></a> -<span class="sourceLineNo">047</span><a name="line.47"></a> -<span class="sourceLineNo">048</span> // Only public so classes back in regionserver.wal can access<a name="line.48"></a> -<span class="sourceLineNo">049</span> public interface AsyncWriter extends WALProvider.AsyncWriter {<a name="line.49"></a> -<span class="sourceLineNo">050</span> /**<a name="line.50"></a> -<span class="sourceLineNo">051</span> * @throws IOException if something goes wrong initializing an output stream<a name="line.51"></a> -<span class="sourceLineNo">052</span> * @throws StreamLacksCapabilityException if the given FileSystem can't provide streams that<a name="line.52"></a> -<span class="sourceLineNo">053</span> * meet the needs of the given Writer implementation.<a name="line.53"></a> -<span class="sourceLineNo">054</span> */<a name="line.54"></a> -<span class="sourceLineNo">055</span> void init(FileSystem fs, Path path, Configuration c, boolean overwritable, long blocksize)<a name="line.55"></a> -<span class="sourceLineNo">056</span> throws IOException, CommonFSUtils.StreamLacksCapabilityException;<a name="line.56"></a> -<span class="sourceLineNo">057</span> }<a name="line.57"></a> -<span class="sourceLineNo">058</span><a name="line.58"></a> -<span class="sourceLineNo">059</span> private EventLoopGroup eventLoopGroup;<a name="line.59"></a> -<span class="sourceLineNo">060</span><a name="line.60"></a> -<span class="sourceLineNo">061</span> private Class<? extends Channel> channelClass;<a name="line.61"></a> -<span class="sourceLineNo">062</span><a name="line.62"></a> -<span class="sourceLineNo">063</span> @Override<a name="line.63"></a> -<span class="sourceLineNo">064</span> protected AsyncFSWAL createWAL() throws IOException {<a name="line.64"></a> -<span class="sourceLineNo">065</span> return new AsyncFSWAL(CommonFSUtils.getWALFileSystem(conf), CommonFSUtils.getWALRootDir(conf),<a name="line.65"></a> -<span class="sourceLineNo">066</span> getWALDirectoryName(factory.factoryId),<a name="line.66"></a> -<span class="sourceLineNo">067</span> getWALArchiveDirectoryName(conf, factory.factoryId), conf, listeners, true, logPrefix,<a name="line.67"></a> -<span class="sourceLineNo">068</span> META_WAL_PROVIDER_ID.equals(providerId) ? META_WAL_PROVIDER_ID : null,<a name="line.68"></a> -<span class="sourceLineNo">069</span> eventLoopGroup, channelClass);<a name="line.69"></a> -<span class="sourceLineNo">070</span> }<a name="line.70"></a> -<span class="sourceLineNo">071</span><a name="line.71"></a> -<span class="sourceLineNo">072</span> @Override<a name="line.72"></a> -<span class="sourceLineNo">073</span> protected void doInit(Configuration conf) throws IOException {<a name="line.73"></a> -<span class="sourceLineNo">074</span> Pair<EventLoopGroup, Class<? extends Channel>> eventLoopGroupAndChannelClass =<a name="line.74"></a> -<span class="sourceLineNo">075</span> NettyAsyncFSWALConfigHelper.getEventLoopConfig(conf);<a name="line.75"></a> -<span class="sourceLineNo">076</span> eventLoopGroup = eventLoopGroupAndChannelClass.getFirst();<a name="line.76"></a> -<span class="sourceLineNo">077</span> channelClass = eventLoopGroupAndChannelClass.getSecond();<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> * Public because of AsyncFSWAL. Should be package-private<a name="line.81"></a> -<span class="sourceLineNo">082</span> */<a name="line.82"></a> -<span class="sourceLineNo">083</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.83"></a> -<span class="sourceLineNo">084</span> boolean overwritable, EventLoopGroup eventLoopGroup,<a name="line.84"></a> -<span class="sourceLineNo">085</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.85"></a> -<span class="sourceLineNo">086</span> return createAsyncWriter(conf, fs, path, overwritable, WALUtil.getWALBlockSize(conf, fs, path),<a name="line.86"></a> -<span class="sourceLineNo">087</span> eventLoopGroup, channelClass);<a name="line.87"></a> -<span class="sourceLineNo">088</span> }<a name="line.88"></a> -<span class="sourceLineNo">089</span><a name="line.89"></a> -<span class="sourceLineNo">090</span> /**<a name="line.90"></a> -<span class="sourceLineNo">091</span> * Public because of AsyncFSWAL. Should be package-private<a name="line.91"></a> -<span class="sourceLineNo">092</span> */<a name="line.92"></a> -<span class="sourceLineNo">093</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.93"></a> -<span class="sourceLineNo">094</span> boolean overwritable, long blocksize, EventLoopGroup eventLoopGroup,<a name="line.94"></a> -<span class="sourceLineNo">095</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.95"></a> -<span class="sourceLineNo">096</span> // Configuration already does caching for the Class lookup.<a name="line.96"></a> -<span class="sourceLineNo">097</span> Class<? extends AsyncWriter> logWriterClass = conf.getClass(<a name="line.97"></a> -<span class="sourceLineNo">098</span> "hbase.regionserver.hlog.async.writer.impl", AsyncProtobufLogWriter.class, AsyncWriter.class);<a name="line.98"></a> -<span class="sourceLineNo">099</span> try {<a name="line.99"></a> -<span class="sourceLineNo">100</span> AsyncWriter writer = logWriterClass.getConstructor(EventLoopGroup.class, Class.class)<a name="line.100"></a> -<span class="sourceLineNo">101</span> .newInstance(eventLoopGroup, channelClass);<a name="line.101"></a> -<span class="sourceLineNo">102</span> writer.init(fs, path, conf, overwritable, blocksize);<a name="line.102"></a> -<span class="sourceLineNo">103</span> return writer;<a name="line.103"></a> -<span class="sourceLineNo">104</span> } catch (Exception e) {<a name="line.104"></a> -<span class="sourceLineNo">105</span> if (e instanceof CommonFSUtils.StreamLacksCapabilityException) {<a name="line.105"></a> -<span class="sourceLineNo">106</span> LOG.error("The RegionServer async write ahead log provider " +<a name="line.106"></a> -<span class="sourceLineNo">107</span> "relies on the ability to call " + e.getMessage() + " for proper operation during " +<a name="line.107"></a> -<span class="sourceLineNo">108</span> "component failures, but the current FileSystem does not support doing so. Please " +<a name="line.108"></a> -<span class="sourceLineNo">109</span> "check the config value of '" + CommonFSUtils.HBASE_WAL_DIR + "' and ensure " +<a name="line.109"></a> -<span class="sourceLineNo">110</span> "it points to a FileSystem mount that has suitable capabilities for output streams.");<a name="line.110"></a> -<span class="sourceLineNo">111</span> } else {<a name="line.111"></a> -<span class="sourceLineNo">112</span> LOG.debug("Error instantiating log writer.", e);<a name="line.112"></a> -<span class="sourceLineNo">113</span> }<a name="line.113"></a> -<span class="sourceLineNo">114</span> Throwables.propagateIfPossible(e, IOException.class);<a name="line.114"></a> -<span class="sourceLineNo">115</span> throw new IOException("cannot get log writer", e);<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span> }<a name="line.117"></a> -<span class="sourceLineNo">118</span>}<a name="line.118"></a> +<span class="sourceLineNo">024</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutput;<a name="line.24"></a> +<span class="sourceLineNo">025</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputHelper;<a name="line.25"></a> +<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.io.asyncfs.FanOutOneBlockAsyncDFSOutputSaslHelper;<a name="line.26"></a> +<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncFSWAL;<a name="line.27"></a> +<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.regionserver.wal.AsyncProtobufLogWriter;<a name="line.28"></a> +<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.regionserver.wal.WALUtil;<a name="line.29"></a> +<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.30"></a> +<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.util.CommonFSUtils.StreamLacksCapabilityException;<a name="line.31"></a> +<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.Pair;<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.apache.yetus.audience.InterfaceStability;<a name="line.34"></a> +<span class="sourceLineNo">035</span>import org.slf4j.Logger;<a name="line.35"></a> +<span class="sourceLineNo">036</span>import org.slf4j.LoggerFactory;<a name="line.36"></a> +<span class="sourceLineNo">037</span><a name="line.37"></a> +<span class="sourceLineNo">038</span>import org.apache.hbase.thirdparty.com.google.common.base.Throwables;<a name="line.38"></a> +<span class="sourceLineNo">039</span>import org.apache.hbase.thirdparty.io.netty.channel.Channel;<a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.io.netty.channel.EventLoopGroup;<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> * A WAL provider that use {@link AsyncFSWAL}.<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>@InterfaceStability.Evolving<a name="line.46"></a> +<span class="sourceLineNo">047</span>public class AsyncFSWALProvider extends AbstractFSWALProvider<AsyncFSWAL> {<a name="line.47"></a> +<span class="sourceLineNo">048</span><a name="line.48"></a> +<span class="sourceLineNo">049</span> private static final Logger LOG = LoggerFactory.getLogger(AsyncFSWALProvider.class);<a name="line.49"></a> +<span class="sourceLineNo">050</span><a name="line.50"></a> +<span class="sourceLineNo">051</span> // Only public so classes back in regionserver.wal can access<a name="line.51"></a> +<span class="sourceLineNo">052</span> public interface AsyncWriter extends WALProvider.AsyncWriter {<a name="line.52"></a> +<span class="sourceLineNo">053</span> /**<a name="line.53"></a> +<span class="sourceLineNo">054</span> * @throws IOException if something goes wrong initializing an output stream<a name="line.54"></a> +<span class="sourceLineNo">055</span> * @throws StreamLacksCapabilityException if the given FileSystem can't provide streams that<a name="line.55"></a> +<span class="sourceLineNo">056</span> * meet the needs of the given Writer implementation.<a name="line.56"></a> +<span class="sourceLineNo">057</span> */<a name="line.57"></a> +<span class="sourceLineNo">058</span> void init(FileSystem fs, Path path, Configuration c, boolean overwritable, long blocksize)<a name="line.58"></a> +<span class="sourceLineNo">059</span> throws IOException, CommonFSUtils.StreamLacksCapabilityException;<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 EventLoopGroup eventLoopGroup;<a name="line.62"></a> +<span class="sourceLineNo">063</span><a name="line.63"></a> +<span class="sourceLineNo">064</span> private Class<? extends Channel> channelClass;<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> @Override<a name="line.66"></a> +<span class="sourceLineNo">067</span> protected AsyncFSWAL createWAL() throws IOException {<a name="line.67"></a> +<span class="sourceLineNo">068</span> return new AsyncFSWAL(CommonFSUtils.getWALFileSystem(conf), CommonFSUtils.getWALRootDir(conf),<a name="line.68"></a> +<span class="sourceLineNo">069</span> getWALDirectoryName(factory.factoryId),<a name="line.69"></a> +<span class="sourceLineNo">070</span> getWALArchiveDirectoryName(conf, factory.factoryId), conf, listeners, true, logPrefix,<a name="line.70"></a> +<span class="sourceLineNo">071</span> META_WAL_PROVIDER_ID.equals(providerId) ? META_WAL_PROVIDER_ID : null,<a name="line.71"></a> +<span class="sourceLineNo">072</span> eventLoopGroup, channelClass);<a name="line.72"></a> +<span class="sourceLineNo">073</span> }<a name="line.73"></a> +<span class="sourceLineNo">074</span><a name="line.74"></a> +<span class="sourceLineNo">075</span> @Override<a name="line.75"></a> +<span class="sourceLineNo">076</span> protected void doInit(Configuration conf) throws IOException {<a name="line.76"></a> +<span class="sourceLineNo">077</span> Pair<EventLoopGroup, Class<? extends Channel>> eventLoopGroupAndChannelClass =<a name="line.77"></a> +<span class="sourceLineNo">078</span> NettyAsyncFSWALConfigHelper.getEventLoopConfig(conf);<a name="line.78"></a> +<span class="sourceLineNo">079</span> eventLoopGroup = eventLoopGroupAndChannelClass.getFirst();<a name="line.79"></a> +<span class="sourceLineNo">080</span> channelClass = eventLoopGroupAndChannelClass.getSecond();<a name="line.80"></a> +<span class="sourceLineNo">081</span> }<a name="line.81"></a> +<span class="sourceLineNo">082</span><a name="line.82"></a> +<span class="sourceLineNo">083</span> /**<a name="line.83"></a> +<span class="sourceLineNo">084</span> * Public because of AsyncFSWAL. Should be package-private<a name="line.84"></a> +<span class="sourceLineNo">085</span> */<a name="line.85"></a> +<span class="sourceLineNo">086</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.86"></a> +<span class="sourceLineNo">087</span> boolean overwritable, EventLoopGroup eventLoopGroup,<a name="line.87"></a> +<span class="sourceLineNo">088</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.88"></a> +<span class="sourceLineNo">089</span> return createAsyncWriter(conf, fs, path, overwritable, WALUtil.getWALBlockSize(conf, fs, path),<a name="line.89"></a> +<span class="sourceLineNo">090</span> eventLoopGroup, channelClass);<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> /**<a name="line.93"></a> +<span class="sourceLineNo">094</span> * Public because of AsyncFSWAL. Should be package-private<a name="line.94"></a> +<span class="sourceLineNo">095</span> */<a name="line.95"></a> +<span class="sourceLineNo">096</span> public static AsyncWriter createAsyncWriter(Configuration conf, FileSystem fs, Path path,<a name="line.96"></a> +<span class="sourceLineNo">097</span> boolean overwritable, long blocksize, EventLoopGroup eventLoopGroup,<a name="line.97"></a> +<span class="sourceLineNo">098</span> Class<? extends Channel> channelClass) throws IOException {<a name="line.98"></a> +<span class="sourceLineNo">099</span> // Configuration already does caching for the Class lookup.<a name="line.99"></a> +<span class="sourceLineNo">100</span> Class<? extends AsyncWriter> logWriterClass = conf.getClass(<a name="line.100"></a> +<span class="sourceLineNo">101</span> "hbase.regionserver.hlog.async.writer.impl", AsyncProtobufLogWriter.class, AsyncWriter.class);<a name="line.101"></a> +<span class="sourceLineNo">102</span> try {<a name="line.102"></a> +<span class="sourceLineNo">103</span> AsyncWriter writer = logWriterClass.getConstructor(EventLoopGroup.class, Class.class)<a name="line.103"></a> +<span class="sourceLineNo">104</span> .newInstance(eventLoopGroup, channelClass);<a name="line.104"></a> +<span class="sourceLineNo">105</span> writer.init(fs, path, conf, overwritable, blocksize);<a name="line.105"></a> +<span class="sourceLineNo">106</span> return writer;<a name="line.106"></a> +<span class="sourceLineNo">107</span> } catch (Exception e) {<a name="line.107"></a> +<span class="sourceLineNo">108</span> if (e instanceof CommonFSUtils.StreamLacksCapabilityException) {<a name="line.108"></a> +<span class="sourceLineNo">109</span> LOG.error("The RegionServer async write ahead log provider " +<a name="line.109"></a> +<span class="sourceLineNo">110</span> "relies on the ability to call " + e.getMessage() + " for proper operation during " +<a name="line.110"></a> +<span class="sourceLineNo">111</span> "component failures, but the current FileSystem does not support doing so. Please " +<a name="line.111"></a> +<span class="sourceLineNo">112</span> "check the config value of '" + CommonFSUtils.HBASE_WAL_DIR + "' and ensure " +<a name="line.112"></a> +<span class="sourceLineNo">113</span> "it points to a FileSystem mount that has suitable capabilities for output streams.");<a name="line.113"></a> +<span class="sourceLineNo">114</span> } else {<a name="line.114"></a> +<span class="sourceLineNo">115</span> LOG.debug("Error instantiating log writer.", e);<a name="line.115"></a> +<span class="sourceLineNo">116</span> }<a name="line.116"></a> +<span class="sourceLineNo">117</span> Throwables.propagateIfPossible(e, IOException.class);<a name="line.117"></a> +<span class="sourceLineNo">118</span> throw new IOException("cannot get log writer", e);<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><a name="line.121"></a> +<span class="sourceLineNo">122</span> /**<a name="line.122"></a> +<span class="sourceLineNo">123</span> * Test whether we can load the helper classes for async dfs output.<a name="line.123"></a> +<span class="sourceLineNo">124</span> */<a name="line.124"></a> +<span class="sourceLineNo">125</span> public static boolean load() {<a name="line.125"></a> +<span class="sourceLineNo">126</span> try {<a name="line.126"></a> +<span class="sourceLineNo">127</span> Class.forName(FanOutOneBlockAsyncDFSOutput.class.getName());<a name="line.127"></a> +<span class="sourceLineNo">128</span> Class.forName(FanOutOneBlockAsyncDFSOutputHelper.class.getName());<a name="line.128"></a> +<span class="sourceLineNo">129</span> Class.forName(FanOutOneBlockAsyncDFSOutputSaslHelper.class.getName());<a name="line.129"></a> +<span class="sourceLineNo">130</span> return true;<a name="line.130"></a> +<span class="sourceLineNo">131</span> } catch (Throwable e) {<a name="line.131"></a> +<span class="sourceLineNo">132</span> return false;<a name="line.132"></a> +<span class="sourceLineNo">133</span> }<a name="line.133"></a> +<span class="sourceLineNo">134</span> }<a name="line.134"></a> +<span class="sourceLineNo">135</span>}<a name="line.135"></a>
