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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/05/24 14:48:27 UTC
[07/51] [partial] hbase-site git commit: Published site at
f3d1c021de2264301f68eadb9ef126ff83d7ef53.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/883dde2f/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.Providers.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.Providers.html b/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.Providers.html
index 28539e5..c3f794b 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.Providers.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.Providers.html
@@ -55,404 +55,406 @@
<span class="sourceLineNo">047</span> * implementations:<a name="line.47"></a>
<span class="sourceLineNo">048</span> * <ul><a name="line.48"></a>
<span class="sourceLineNo">049</span> * <li><em>defaultProvider</em> : whatever provider is standard for the hbase version. Currently<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * "filesystem"</li><a name="line.50"></a>
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-<span class="sourceLineNo">052</span> * FileSystem interface, normally HDFS.</li><a name="line.52"></a>
-<span class="sourceLineNo">053</span> * <li><em>multiwal</em> : a provider that will use multiple "filesystem" wal instances per region<a name="line.53"></a>
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-<span class="sourceLineNo">055</span> * </ul><a name="line.55"></a>
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-<span class="sourceLineNo">059</span>@InterfaceAudience.Private<a name="line.59"></a>
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+<span class="sourceLineNo">051</span> * <li><em>asyncfs</em> : a provider that will run on top of an implementation of the Hadoop<a name="line.51"></a>
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+<span class="sourceLineNo">053</span> * <li><em>filesystem</em> : a provider that will run on top of an implementation of the Hadoop<a name="line.53"></a>
+<span class="sourceLineNo">054</span> * FileSystem interface via HDFS's synchronous DFSClient.</li><a name="line.54"></a>
+<span class="sourceLineNo">055</span> * <li><em>multiwal</em> : a provider that will use multiple "filesystem" wal instances per region<a name="line.55"></a>
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+<span class="sourceLineNo">061</span>@InterfaceAudience.Private<a name="line.61"></a>
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<span class="sourceLineNo">063</span><a name="line.63"></a>
-<span class="sourceLineNo">064</span> /**<a name="line.64"></a>
-<span class="sourceLineNo">065</span> * Maps between configuration names for providers and implementation classes.<a name="line.65"></a>
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-<span class="sourceLineNo">067</span> static enum Providers {<a name="line.67"></a>
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+<span class="sourceLineNo">066</span> /**<a name="line.66"></a>
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+<span class="sourceLineNo">087</span> final String factoryId;<a name="line.87"></a>
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+<span class="sourceLineNo">089</span> // The meta updates are written to a different wal. If this<a name="line.89"></a>
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+<span class="sourceLineNo">091</span> // lazily intialized; most RegionServers don't deal with META<a name="line.91"></a>
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+<span class="sourceLineNo">094</span> /**<a name="line.94"></a>
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+<span class="sourceLineNo">099</span> /**<a name="line.99"></a>
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<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span> // Used for the singleton WALFactory, see below.<a name="line.104"></a>
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-<span class="sourceLineNo">106</span> // this code is duplicated here so we can keep our members final.<a name="line.106"></a>
-<span class="sourceLineNo">107</span> // until we've moved reader/writer construction down into providers, this initialization must<a name="line.107"></a>
-<span class="sourceLineNo">108</span> // happen prior to provider initialization, in case they need to instantiate a reader/writer.<a name="line.108"></a>
-<span class="sourceLineNo">109</span> timeoutMillis = conf.getInt("hbase.hlog.open.timeout", 300000);<a name="line.109"></a>
-<span class="sourceLineNo">110</span> /* TODO Both of these are probably specific to the fs wal provider */<a name="line.110"></a>
-<span class="sourceLineNo">111</span> logReaderClass = conf.getClass("hbase.regionserver.hlog.reader.impl", ProtobufLogReader.class,<a name="line.111"></a>
-<span class="sourceLineNo">112</span> AbstractFSWALProvider.Reader.class);<a name="line.112"></a>
-<span class="sourceLineNo">113</span> this.conf = conf;<a name="line.113"></a>
-<span class="sourceLineNo">114</span> // end required early initialization<a name="line.114"></a>
-<span class="sourceLineNo">115</span><a name="line.115"></a>
-<span class="sourceLineNo">116</span> // this instance can't create wals, just reader/writers.<a name="line.116"></a>
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-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span> @VisibleForTesting<a name="line.121"></a>
-<span class="sourceLineNo">122</span> public Class<? extends WALProvider> getProviderClass(String key, String defaultValue) {<a name="line.122"></a>
-<span class="sourceLineNo">123</span> try {<a name="line.123"></a>
-<span class="sourceLineNo">124</span> return Providers.valueOf(conf.get(key, defaultValue)).clazz;<a name="line.124"></a>
-<span class="sourceLineNo">125</span> } catch (IllegalArgumentException exception) {<a name="line.125"></a>
-<span class="sourceLineNo">126</span> // Fall back to them specifying a class name<a name="line.126"></a>
-<span class="sourceLineNo">127</span> // Note that the passed default class shouldn't actually be used, since the above only fails<a name="line.127"></a>
-<span class="sourceLineNo">128</span> // when there is a config value present.<a name="line.128"></a>
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-<span class="sourceLineNo">135</span> LOG.info("Instantiating WALProvider of type " + clazz);<a name="line.135"></a>
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-<span class="sourceLineNo">137</span> final WALProvider result = clazz.getDeclaredConstructor().newInstance();<a name="line.137"></a>
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-<span class="sourceLineNo">142</span> LOG.debug("Exception details for failure to load WALProvider.", e);<a name="line.142"></a>
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-<span class="sourceLineNo">149</span> * as anything the provider might need to read).<a name="line.149"></a>
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+<span class="sourceLineNo">435</span> @VisibleForTesting<a name="line.435"></a>
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+<span class="sourceLineNo">438</span> throws IOException {<a name="line.438"></a>
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+<span class="sourceLineNo">441</span><a name="line.441"></a>
+<span class="sourceLineNo">442</span> public final WALProvider getWALProvider() {<a name="line.442"></a>
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+<span class="sourceLineNo">445</span><a name="line.445"></a>
+<span class="sourceLineNo">446</span> public final WALProvider getMetaWALProvider() {<a name="line.446"></a>
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