http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d1341859/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.html b/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.html index d69bb8c..92967f2 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/wal/WALFactory.html @@ -88,428 +88,404 @@ <span class="sourceLineNo">080</span><a name="line.80"></a> <span class="sourceLineNo">081</span> public static final String WAL_PROVIDER = "hbase.wal.provider";<a name="line.81"></a> <span class="sourceLineNo">082</span> static final String DEFAULT_WAL_PROVIDER = Providers.defaultProvider.name();<a name="line.82"></a> -<span class="sourceLineNo">083</span> public static final String WAL_PROVIDER_CLASS = "hbase.wal.provider.class";<a name="line.83"></a> -<span class="sourceLineNo">084</span> static final Class<? extends WALProvider> DEFAULT_WAL_PROVIDER_CLASS = AsyncFSWALProvider.class;<a name="line.84"></a> +<span class="sourceLineNo">083</span><a name="line.83"></a> +<span class="sourceLineNo">084</span> public static final String META_WAL_PROVIDER = "hbase.wal.meta_provider";<a name="line.84"></a> <span class="sourceLineNo">085</span><a name="line.85"></a> -<span class="sourceLineNo">086</span> public static final String META_WAL_PROVIDER = "hbase.wal.meta_provider";<a name="line.86"></a> -<span class="sourceLineNo">087</span> public static final String META_WAL_PROVIDER_CLASS = "hbase.wal.meta_provider.class";<a name="line.87"></a> -<span class="sourceLineNo">088</span><a name="line.88"></a> -<span class="sourceLineNo">089</span> final String factoryId;<a name="line.89"></a> -<span class="sourceLineNo">090</span> private final WALProvider provider;<a name="line.90"></a> -<span class="sourceLineNo">091</span> // The meta updates are written to a different wal. If this<a name="line.91"></a> -<span class="sourceLineNo">092</span> // regionserver holds meta regions, then this ref will be non-null.<a name="line.92"></a> -<span class="sourceLineNo">093</span> // lazily intialized; most RegionServers don't deal with META<a name="line.93"></a> -<span class="sourceLineNo">094</span> private final AtomicReference<WALProvider> metaProvider = new AtomicReference<>();<a name="line.94"></a> -<span class="sourceLineNo">095</span><a name="line.95"></a> -<span class="sourceLineNo">096</span> /**<a name="line.96"></a> -<span class="sourceLineNo">097</span> * Configuration-specified WAL Reader used when a custom reader is requested<a name="line.97"></a> -<span class="sourceLineNo">098</span> */<a name="line.98"></a> -<span class="sourceLineNo">099</span> private final Class<? extends AbstractFSWALProvider.Reader> logReaderClass;<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> * How long to attempt opening in-recovery wals<a name="line.102"></a> -<span class="sourceLineNo">103</span> */<a name="line.103"></a> -<span class="sourceLineNo">104</span> private final int timeoutMillis;<a name="line.104"></a> -<span class="sourceLineNo">105</span><a name="line.105"></a> -<span class="sourceLineNo">106</span> private final Configuration conf;<a name="line.106"></a> -<span class="sourceLineNo">107</span><a name="line.107"></a> -<span class="sourceLineNo">108</span> // Used for the singleton WALFactory, see below.<a name="line.108"></a> -<span class="sourceLineNo">109</span> private WALFactory(Configuration conf) {<a name="line.109"></a> -<span class="sourceLineNo">110</span> // this code is duplicated here so we can keep our members final.<a name="line.110"></a> -<span class="sourceLineNo">111</span> // until we've moved reader/writer construction down into providers, this initialization must<a name="line.111"></a> -<span class="sourceLineNo">112</span> // happen prior to provider initialization, in case they need to instantiate a reader/writer.<a name="line.112"></a> -<span class="sourceLineNo">113</span> timeoutMillis = conf.getInt("hbase.hlog.open.timeout", 300000);<a name="line.113"></a> -<span class="sourceLineNo">114</span> /* TODO Both of these are probably specific to the fs wal provider */<a name="line.114"></a> -<span class="sourceLineNo">115</span> logReaderClass = conf.getClass("hbase.regionserver.hlog.reader.impl", ProtobufLogReader.class,<a name="line.115"></a> -<span class="sourceLineNo">116</span> AbstractFSWALProvider.Reader.class);<a name="line.116"></a> -<span class="sourceLineNo">117</span> this.conf = conf;<a name="line.117"></a> -<span class="sourceLineNo">118</span> // end required early initialization<a name="line.118"></a> -<span class="sourceLineNo">119</span><a name="line.119"></a> -<span class="sourceLineNo">120</span> // this instance can't create wals, just reader/writers.<a name="line.120"></a> -<span class="sourceLineNo">121</span> provider = null;<a name="line.121"></a> -<span class="sourceLineNo">122</span> factoryId = SINGLETON_ID;<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> @VisibleForTesting<a name="line.125"></a> -<span class="sourceLineNo">126</span> Providers getDefaultProvider() {<a name="line.126"></a> -<span class="sourceLineNo">127</span> return Providers.defaultProvider;<a name="line.127"></a> -<span class="sourceLineNo">128</span> }<a name="line.128"></a> -<span class="sourceLineNo">129</span><a name="line.129"></a> -<span class="sourceLineNo">130</span> @VisibleForTesting<a name="line.130"></a> -<span class="sourceLineNo">131</span> /*<a name="line.131"></a> -<span class="sourceLineNo">132</span> * @param clsKey config key for provider classname<a name="line.132"></a> -<span class="sourceLineNo">133</span> * @param key config key for provider enum<a name="line.133"></a> -<span class="sourceLineNo">134</span> * @param defaultValue default value for provider enum<a name="line.134"></a> -<span class="sourceLineNo">135</span> * @return Class which extends WALProvider<a name="line.135"></a> -<span class="sourceLineNo">136</span> */<a name="line.136"></a> -<span class="sourceLineNo">137</span> public Class<? extends WALProvider> getProviderClass(String clsKey, String key,<a name="line.137"></a> -<span class="sourceLineNo">138</span> String defaultValue) {<a name="line.138"></a> -<span class="sourceLineNo">139</span> String clsName = conf.get(clsKey);<a name="line.139"></a> -<span class="sourceLineNo">140</span> if (clsName == null || clsName.isEmpty()) {<a name="line.140"></a> -<span class="sourceLineNo">141</span> clsName = conf.get(key, defaultValue);<a name="line.141"></a> -<span class="sourceLineNo">142</span> }<a name="line.142"></a> -<span class="sourceLineNo">143</span> if (clsName != null && !clsName.isEmpty()) {<a name="line.143"></a> -<span class="sourceLineNo">144</span> try {<a name="line.144"></a> -<span class="sourceLineNo">145</span> return (Class<? extends WALProvider>) Class.forName(clsName);<a name="line.145"></a> -<span class="sourceLineNo">146</span> } catch (ClassNotFoundException exception) {<a name="line.146"></a> -<span class="sourceLineNo">147</span> // try with enum key next<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> try {<a name="line.150"></a> -<span class="sourceLineNo">151</span> Providers provider = Providers.valueOf(conf.get(key, defaultValue));<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> // AsyncFSWALProvider is not guaranteed to work on all Hadoop versions, when it's chosen as<a name="line.153"></a> -<span class="sourceLineNo">154</span> // the default and we can't use it, we want to fall back to FSHLog which we know works on<a name="line.154"></a> -<span class="sourceLineNo">155</span> // all versions.<a name="line.155"></a> -<span class="sourceLineNo">156</span> if (provider == getDefaultProvider() && provider.clazz == AsyncFSWALProvider.class<a name="line.156"></a> -<span class="sourceLineNo">157</span> && !AsyncFSWALProvider.load()) {<a name="line.157"></a> -<span class="sourceLineNo">158</span> // AsyncFSWAL has better performance in most cases, and also uses less resources, we will<a name="line.158"></a> -<span class="sourceLineNo">159</span> // try to use it if possible. It deeply hacks into the internal of DFSClient so will be<a name="line.159"></a> -<span class="sourceLineNo">160</span> // easily broken when upgrading hadoop.<a name="line.160"></a> -<span class="sourceLineNo">161</span> LOG.warn("Failed to load AsyncFSWALProvider, falling back to FSHLogProvider");<a name="line.161"></a> -<span class="sourceLineNo">162</span> return FSHLogProvider.class;<a name="line.162"></a> -<span class="sourceLineNo">163</span> }<a name="line.163"></a> -<span class="sourceLineNo">164</span><a name="line.164"></a> -<span class="sourceLineNo">165</span> // N.b. If the user specifically requested AsyncFSWALProvider but their environment doesn't<a name="line.165"></a> -<span class="sourceLineNo">166</span> // support using it (e.g. AsyncFSWALProvider.load() == false), we should let this fail and<a name="line.166"></a> -<span class="sourceLineNo">167</span> // not fall back to FSHLogProvider.<a name="line.167"></a> -<span class="sourceLineNo">168</span> return provider.clazz;<a name="line.168"></a> -<span class="sourceLineNo">169</span> } catch (IllegalArgumentException exception) {<a name="line.169"></a> -<span class="sourceLineNo">170</span> // Fall back to them specifying a class name<a name="line.170"></a> -<span class="sourceLineNo">171</span> // Note that the passed default class shouldn't actually be used, since the above only fails<a name="line.171"></a> -<span class="sourceLineNo">172</span> // when there is a config value present.<a name="line.172"></a> -<span class="sourceLineNo">173</span> return conf.getClass(key, AsyncFSWALProvider.class, WALProvider.class);<a name="line.173"></a> -<span class="sourceLineNo">174</span> }<a name="line.174"></a> -<span class="sourceLineNo">175</span> }<a name="line.175"></a> -<span class="sourceLineNo">176</span><a name="line.176"></a> -<span class="sourceLineNo">177</span> static WALProvider createProvider(Class<? extends WALProvider> clazz) throws IOException {<a name="line.177"></a> -<span class="sourceLineNo">178</span> LOG.info("Instantiating WALProvider of type {}", clazz);<a name="line.178"></a> -<span class="sourceLineNo">179</span> try {<a name="line.179"></a> -<span class="sourceLineNo">180</span> return clazz.getDeclaredConstructor().newInstance();<a name="line.180"></a> -<span class="sourceLineNo">181</span> } catch (Exception e) {<a name="line.181"></a> -<span class="sourceLineNo">182</span> LOG.error("couldn't set up WALProvider, the configured class is " + clazz);<a name="line.182"></a> -<span class="sourceLineNo">183</span> LOG.debug("Exception details for failure to load WALProvider.", e);<a name="line.183"></a> -<span class="sourceLineNo">184</span> throw new IOException("couldn't set up WALProvider", e);<a name="line.184"></a> -<span class="sourceLineNo">185</span> }<a name="line.185"></a> -<span class="sourceLineNo">186</span> }<a name="line.186"></a> -<span class="sourceLineNo">187</span><a name="line.187"></a> -<span class="sourceLineNo">188</span> /**<a name="line.188"></a> -<span class="sourceLineNo">189</span> * @param conf must not be null, will keep a reference to read params in later reader/writer<a name="line.189"></a> -<span class="sourceLineNo">190</span> * instances.<a name="line.190"></a> -<span class="sourceLineNo">191</span> * @param factoryId a unique identifier for this factory. used i.e. by filesystem implementations<a name="line.191"></a> -<span class="sourceLineNo">192</span> * to make a directory<a name="line.192"></a> -<span class="sourceLineNo">193</span> */<a name="line.193"></a> -<span class="sourceLineNo">194</span> public WALFactory(Configuration conf, String factoryId) throws IOException {<a name="line.194"></a> -<span class="sourceLineNo">195</span> // default enableSyncReplicationWALProvider is true, only disable SyncReplicationWALProvider<a name="line.195"></a> -<span class="sourceLineNo">196</span> // for HMaster or HRegionServer which take system table only. See HBASE-19999<a name="line.196"></a> -<span class="sourceLineNo">197</span> this(conf, factoryId, true);<a name="line.197"></a> -<span class="sourceLineNo">198</span> }<a name="line.198"></a> -<span class="sourceLineNo">199</span><a name="line.199"></a> -<span class="sourceLineNo">200</span> /**<a name="line.200"></a> -<span class="sourceLineNo">201</span> * @param conf must not be null, will keep a reference to read params in later reader/writer<a name="line.201"></a> -<span class="sourceLineNo">202</span> * instances.<a name="line.202"></a> -<span class="sourceLineNo">203</span> * @param factoryId a unique identifier for this factory. used i.e. by filesystem implementations<a name="line.203"></a> -<span class="sourceLineNo">204</span> * to make a directory<a name="line.204"></a> -<span class="sourceLineNo">205</span> * @param enableSyncReplicationWALProvider whether wrap the wal provider to a<a name="line.205"></a> -<span class="sourceLineNo">206</span> * {@link SyncReplicationWALProvider}<a name="line.206"></a> -<span class="sourceLineNo">207</span> */<a name="line.207"></a> -<span class="sourceLineNo">208</span> public WALFactory(Configuration conf, String factoryId, boolean enableSyncReplicationWALProvider)<a name="line.208"></a> -<span class="sourceLineNo">209</span> throws IOException {<a name="line.209"></a> -<span class="sourceLineNo">210</span> // until we've moved reader/writer construction down into providers, this initialization must<a name="line.210"></a> -<span class="sourceLineNo">211</span> // happen prior to provider initialization, in case they need to instantiate a reader/writer.<a name="line.211"></a> -<span class="sourceLineNo">212</span> timeoutMillis = conf.getInt("hbase.hlog.open.timeout", 300000);<a name="line.212"></a> -<span class="sourceLineNo">213</span> /* TODO Both of these are probably specific to the fs wal provider */<a name="line.213"></a> -<span class="sourceLineNo">214</span> logReaderClass = conf.getClass("hbase.regionserver.hlog.reader.impl", ProtobufLogReader.class,<a name="line.214"></a> -<span class="sourceLineNo">215</span> AbstractFSWALProvider.Reader.class);<a name="line.215"></a> -<span class="sourceLineNo">216</span> this.conf = conf;<a name="line.216"></a> -<span class="sourceLineNo">217</span> this.factoryId = factoryId;<a name="line.217"></a> -<span class="sourceLineNo">218</span> // end required early initialization<a name="line.218"></a> -<span class="sourceLineNo">219</span> if (conf.getBoolean("hbase.regionserver.hlog.enabled", true)) {<a name="line.219"></a> -<span class="sourceLineNo">220</span> WALProvider provider = createProvider(<a name="line.220"></a> -<span class="sourceLineNo">221</span> getProviderClass(WAL_PROVIDER_CLASS, WAL_PROVIDER, DEFAULT_WAL_PROVIDER));<a name="line.221"></a> -<span class="sourceLineNo">222</span> if (enableSyncReplicationWALProvider) {<a name="line.222"></a> -<span class="sourceLineNo">223</span> provider = new SyncReplicationWALProvider(provider);<a name="line.223"></a> -<span class="sourceLineNo">224</span> }<a name="line.224"></a> -<span class="sourceLineNo">225</span> provider.init(this, conf, null);<a name="line.225"></a> -<span class="sourceLineNo">226</span> provider.addWALActionsListener(new MetricsWAL());<a name="line.226"></a> -<span class="sourceLineNo">227</span> this.provider = provider;<a name="line.227"></a> -<span class="sourceLineNo">228</span> } else {<a name="line.228"></a> -<span class="sourceLineNo">229</span> // special handling of existing configuration behavior.<a name="line.229"></a> -<span class="sourceLineNo">230</span> LOG.warn("Running with WAL disabled.");<a name="line.230"></a> -<span class="sourceLineNo">231</span> provider = new DisabledWALProvider();<a name="line.231"></a> -<span class="sourceLineNo">232</span> provider.init(this, conf, factoryId);<a name="line.232"></a> -<span class="sourceLineNo">233</span> }<a name="line.233"></a> -<span class="sourceLineNo">234</span> }<a name="line.234"></a> -<span class="sourceLineNo">235</span><a name="line.235"></a> -<span class="sourceLineNo">236</span> /**<a name="line.236"></a> -<span class="sourceLineNo">237</span> * Shutdown all WALs and clean up any underlying storage.<a name="line.237"></a> -<span class="sourceLineNo">238</span> * Use only when you will not need to replay and edits that have gone to any wals from this<a name="line.238"></a> -<span class="sourceLineNo">239</span> * factory.<a name="line.239"></a> -<span class="sourceLineNo">240</span> */<a name="line.240"></a> -<span class="sourceLineNo">241</span> public void close() throws IOException {<a name="line.241"></a> -<span class="sourceLineNo">242</span> final WALProvider metaProvider = this.metaProvider.get();<a name="line.242"></a> -<span class="sourceLineNo">243</span> if (null != metaProvider) {<a name="line.243"></a> -<span class="sourceLineNo">244</span> metaProvider.close();<a name="line.244"></a> +<span class="sourceLineNo">086</span> final String factoryId;<a name="line.86"></a> +<span class="sourceLineNo">087</span> private final WALProvider provider;<a name="line.87"></a> +<span class="sourceLineNo">088</span> // The meta updates are written to a different wal. If this<a name="line.88"></a> +<span class="sourceLineNo">089</span> // regionserver holds meta regions, then this ref will be non-null.<a name="line.89"></a> +<span class="sourceLineNo">090</span> // lazily intialized; most RegionServers don't deal with META<a name="line.90"></a> +<span class="sourceLineNo">091</span> private final AtomicReference<WALProvider> metaProvider = new AtomicReference<>();<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> * Configuration-specified WAL Reader used when a custom reader is requested<a name="line.94"></a> +<span class="sourceLineNo">095</span> */<a name="line.95"></a> +<span class="sourceLineNo">096</span> private final Class<? extends AbstractFSWALProvider.Reader> logReaderClass;<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> * How long to attempt opening in-recovery wals<a name="line.99"></a> +<span class="sourceLineNo">100</span> */<a name="line.100"></a> +<span class="sourceLineNo">101</span> private final int timeoutMillis;<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> +<span class="sourceLineNo">103</span> private final Configuration conf;<a name="line.103"></a> +<span class="sourceLineNo">104</span><a name="line.104"></a> +<span class="sourceLineNo">105</span> // Used for the singleton WALFactory, see below.<a name="line.105"></a> +<span class="sourceLineNo">106</span> private WALFactory(Configuration conf) {<a name="line.106"></a> +<span class="sourceLineNo">107</span> // this code is duplicated here so we can keep our members final.<a name="line.107"></a> +<span class="sourceLineNo">108</span> // until we've moved reader/writer construction down into providers, this initialization must<a name="line.108"></a> +<span class="sourceLineNo">109</span> // happen prior to provider initialization, in case they need to instantiate a reader/writer.<a name="line.109"></a> +<span class="sourceLineNo">110</span> timeoutMillis = conf.getInt("hbase.hlog.open.timeout", 300000);<a name="line.110"></a> +<span class="sourceLineNo">111</span> /* TODO Both of these are probably specific to the fs wal provider */<a name="line.111"></a> +<span class="sourceLineNo">112</span> logReaderClass = conf.getClass("hbase.regionserver.hlog.reader.impl", ProtobufLogReader.class,<a name="line.112"></a> +<span class="sourceLineNo">113</span> AbstractFSWALProvider.Reader.class);<a name="line.113"></a> +<span class="sourceLineNo">114</span> this.conf = conf;<a name="line.114"></a> +<span class="sourceLineNo">115</span> // end required early initialization<a name="line.115"></a> +<span class="sourceLineNo">116</span><a name="line.116"></a> +<span class="sourceLineNo">117</span> // this instance can't create wals, just reader/writers.<a name="line.117"></a> +<span class="sourceLineNo">118</span> provider = null;<a name="line.118"></a> +<span class="sourceLineNo">119</span> factoryId = SINGLETON_ID;<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> @VisibleForTesting<a name="line.122"></a> +<span class="sourceLineNo">123</span> Providers getDefaultProvider() {<a name="line.123"></a> +<span class="sourceLineNo">124</span> return Providers.defaultProvider;<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> @VisibleForTesting<a name="line.127"></a> +<span class="sourceLineNo">128</span> public Class<? extends WALProvider> getProviderClass(String key, String defaultValue) {<a name="line.128"></a> +<span class="sourceLineNo">129</span> try {<a name="line.129"></a> +<span class="sourceLineNo">130</span> Providers provider = Providers.valueOf(conf.get(key, defaultValue));<a name="line.130"></a> +<span class="sourceLineNo">131</span><a name="line.131"></a> +<span class="sourceLineNo">132</span> // AsyncFSWALProvider is not guaranteed to work on all Hadoop versions, when it's chosen as<a name="line.132"></a> +<span class="sourceLineNo">133</span> // the default and we can't use it, we want to fall back to FSHLog which we know works on<a name="line.133"></a> +<span class="sourceLineNo">134</span> // all versions.<a name="line.134"></a> +<span class="sourceLineNo">135</span> if (provider == getDefaultProvider() && provider.clazz == AsyncFSWALProvider.class<a name="line.135"></a> +<span class="sourceLineNo">136</span> && !AsyncFSWALProvider.load()) {<a name="line.136"></a> +<span class="sourceLineNo">137</span> // AsyncFSWAL has better performance in most cases, and also uses less resources, we will<a name="line.137"></a> +<span class="sourceLineNo">138</span> // try to use it if possible. It deeply hacks into the internal of DFSClient so will be<a name="line.138"></a> +<span class="sourceLineNo">139</span> // easily broken when upgrading hadoop.<a name="line.139"></a> +<span class="sourceLineNo">140</span> LOG.warn("Failed to load AsyncFSWALProvider, falling back to FSHLogProvider");<a name="line.140"></a> +<span class="sourceLineNo">141</span> return FSHLogProvider.class;<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> // N.b. If the user specifically requested AsyncFSWALProvider but their environment doesn't<a name="line.144"></a> +<span class="sourceLineNo">145</span> // support using it (e.g. AsyncFSWALProvider.load() == false), we should let this fail and<a name="line.145"></a> +<span class="sourceLineNo">146</span> // not fall back to FSHLogProvider.<a name="line.146"></a> +<span class="sourceLineNo">147</span> return provider.clazz;<a name="line.147"></a> +<span class="sourceLineNo">148</span> } catch (IllegalArgumentException exception) {<a name="line.148"></a> +<span class="sourceLineNo">149</span> // Fall back to them specifying a class name<a name="line.149"></a> +<span class="sourceLineNo">150</span> // Note that the passed default class shouldn't actually be used, since the above only fails<a name="line.150"></a> +<span class="sourceLineNo">151</span> // when there is a config value present.<a name="line.151"></a> +<span class="sourceLineNo">152</span> return conf.getClass(key, Providers.defaultProvider.clazz, WALProvider.class);<a name="line.152"></a> +<span class="sourceLineNo">153</span> }<a name="line.153"></a> +<span class="sourceLineNo">154</span> }<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> static WALProvider createProvider(Class<? extends WALProvider> clazz) throws IOException {<a name="line.156"></a> +<span class="sourceLineNo">157</span> LOG.info("Instantiating WALProvider of type {}", clazz);<a name="line.157"></a> +<span class="sourceLineNo">158</span> try {<a name="line.158"></a> +<span class="sourceLineNo">159</span> return clazz.getDeclaredConstructor().newInstance();<a name="line.159"></a> +<span class="sourceLineNo">160</span> } catch (Exception e) {<a name="line.160"></a> +<span class="sourceLineNo">161</span> LOG.error("couldn't set up WALProvider, the configured class is " + clazz);<a name="line.161"></a> +<span class="sourceLineNo">162</span> LOG.debug("Exception details for failure to load WALProvider.", e);<a name="line.162"></a> +<span class="sourceLineNo">163</span> throw new IOException("couldn't set up WALProvider", e);<a name="line.163"></a> +<span class="sourceLineNo">164</span> }<a name="line.164"></a> +<span class="sourceLineNo">165</span> }<a name="line.165"></a> +<span class="sourceLineNo">166</span><a name="line.166"></a> +<span class="sourceLineNo">167</span> /**<a name="line.167"></a> +<span class="sourceLineNo">168</span> * @param conf must not be null, will keep a reference to read params in later reader/writer<a name="line.168"></a> +<span class="sourceLineNo">169</span> * instances.<a name="line.169"></a> +<span class="sourceLineNo">170</span> * @param factoryId a unique identifier for this factory. used i.e. by filesystem implementations<a name="line.170"></a> +<span class="sourceLineNo">171</span> * to make a directory<a name="line.171"></a> +<span class="sourceLineNo">172</span> */<a name="line.172"></a> +<span class="sourceLineNo">173</span> public WALFactory(Configuration conf, String factoryId) throws IOException {<a name="line.173"></a> +<span class="sourceLineNo">174</span> // default enableSyncReplicationWALProvider is true, only disable SyncReplicationWALProvider<a name="line.174"></a> +<span class="sourceLineNo">175</span> // for HMaster or HRegionServer which take system table only. See HBASE-19999<a name="line.175"></a> +<span class="sourceLineNo">176</span> this(conf, factoryId, true);<a name="line.176"></a> +<span class="sourceLineNo">177</span> }<a name="line.177"></a> +<span class="sourceLineNo">178</span><a name="line.178"></a> +<span class="sourceLineNo">179</span> /**<a name="line.179"></a> +<span class="sourceLineNo">180</span> * @param conf must not be null, will keep a reference to read params in later reader/writer<a name="line.180"></a> +<span class="sourceLineNo">181</span> * instances.<a name="line.181"></a> +<span class="sourceLineNo">182</span> * @param factoryId a unique identifier for this factory. used i.e. by filesystem implementations<a name="line.182"></a> +<span class="sourceLineNo">183</span> * to make a directory<a name="line.183"></a> +<span class="sourceLineNo">184</span> * @param enableSyncReplicationWALProvider whether wrap the wal provider to a<a name="line.184"></a> +<span class="sourceLineNo">185</span> * {@link SyncReplicationWALProvider}<a name="line.185"></a> +<span class="sourceLineNo">186</span> */<a name="line.186"></a> +<span class="sourceLineNo">187</span> public WALFactory(Configuration conf, String factoryId, boolean enableSyncReplicationWALProvider)<a name="line.187"></a> +<span class="sourceLineNo">188</span> throws IOException {<a name="line.188"></a> +<span class="sourceLineNo">189</span> // until we've moved reader/writer construction down into providers, this initialization must<a name="line.189"></a> +<span class="sourceLineNo">190</span> // happen prior to provider initialization, in case they need to instantiate a reader/writer.<a name="line.190"></a> +<span class="sourceLineNo">191</span> timeoutMillis = conf.getInt("hbase.hlog.open.timeout", 300000);<a name="line.191"></a> +<span class="sourceLineNo">192</span> /* TODO Both of these are probably specific to the fs wal provider */<a name="line.192"></a> +<span class="sourceLineNo">193</span> logReaderClass = conf.getClass("hbase.regionserver.hlog.reader.impl", ProtobufLogReader.class,<a name="line.193"></a> +<span class="sourceLineNo">194</span> AbstractFSWALProvider.Reader.class);<a name="line.194"></a> +<span class="sourceLineNo">195</span> this.conf = conf;<a name="line.195"></a> +<span class="sourceLineNo">196</span> this.factoryId = factoryId;<a name="line.196"></a> +<span class="sourceLineNo">197</span> // end required early initialization<a name="line.197"></a> +<span class="sourceLineNo">198</span> if (conf.getBoolean("hbase.regionserver.hlog.enabled", true)) {<a name="line.198"></a> +<span class="sourceLineNo">199</span> WALProvider provider = createProvider(getProviderClass(WAL_PROVIDER, DEFAULT_WAL_PROVIDER));<a name="line.199"></a> +<span class="sourceLineNo">200</span> if (enableSyncReplicationWALProvider) {<a name="line.200"></a> +<span class="sourceLineNo">201</span> provider = new SyncReplicationWALProvider(provider);<a name="line.201"></a> +<span class="sourceLineNo">202</span> }<a name="line.202"></a> +<span class="sourceLineNo">203</span> provider.init(this, conf, null);<a name="line.203"></a> +<span class="sourceLineNo">204</span> provider.addWALActionsListener(new MetricsWAL());<a name="line.204"></a> +<span class="sourceLineNo">205</span> this.provider = provider;<a name="line.205"></a> +<span class="sourceLineNo">206</span> } else {<a name="line.206"></a> +<span class="sourceLineNo">207</span> // special handling of existing configuration behavior.<a name="line.207"></a> +<span class="sourceLineNo">208</span> LOG.warn("Running with WAL disabled.");<a name="line.208"></a> +<span class="sourceLineNo">209</span> provider = new DisabledWALProvider();<a name="line.209"></a> +<span class="sourceLineNo">210</span> provider.init(this, conf, factoryId);<a name="line.210"></a> +<span class="sourceLineNo">211</span> }<a name="line.211"></a> +<span class="sourceLineNo">212</span> }<a name="line.212"></a> +<span class="sourceLineNo">213</span><a name="line.213"></a> +<span class="sourceLineNo">214</span> /**<a name="line.214"></a> +<span class="sourceLineNo">215</span> * Shutdown all WALs and clean up any underlying storage.<a name="line.215"></a> +<span class="sourceLineNo">216</span> * Use only when you will not need to replay and edits that have gone to any wals from this<a name="line.216"></a> +<span class="sourceLineNo">217</span> * factory.<a name="line.217"></a> +<span class="sourceLineNo">218</span> */<a name="line.218"></a> +<span class="sourceLineNo">219</span> public void close() throws IOException {<a name="line.219"></a> +<span class="sourceLineNo">220</span> final WALProvider metaProvider = this.metaProvider.get();<a name="line.220"></a> +<span class="sourceLineNo">221</span> if (null != metaProvider) {<a name="line.221"></a> +<span class="sourceLineNo">222</span> metaProvider.close();<a name="line.222"></a> +<span class="sourceLineNo">223</span> }<a name="line.223"></a> +<span class="sourceLineNo">224</span> // close is called on a WALFactory with null provider in the case of contention handling<a name="line.224"></a> +<span class="sourceLineNo">225</span> // within the getInstance method.<a name="line.225"></a> +<span class="sourceLineNo">226</span> if (null != provider) {<a name="line.226"></a> +<span class="sourceLineNo">227</span> provider.close();<a name="line.227"></a> +<span class="sourceLineNo">228</span> }<a name="line.228"></a> +<span class="sourceLineNo">229</span> }<a name="line.229"></a> +<span class="sourceLineNo">230</span><a name="line.230"></a> +<span class="sourceLineNo">231</span> /**<a name="line.231"></a> +<span class="sourceLineNo">232</span> * Tell the underlying WAL providers to shut down, but do not clean up underlying storage.<a name="line.232"></a> +<span class="sourceLineNo">233</span> * If you are not ending cleanly and will need to replay edits from this factory's wals,<a name="line.233"></a> +<span class="sourceLineNo">234</span> * use this method if you can as it will try to leave things as tidy as possible.<a name="line.234"></a> +<span class="sourceLineNo">235</span> */<a name="line.235"></a> +<span class="sourceLineNo">236</span> public void shutdown() throws IOException {<a name="line.236"></a> +<span class="sourceLineNo">237</span> IOException exception = null;<a name="line.237"></a> +<span class="sourceLineNo">238</span> final WALProvider metaProvider = this.metaProvider.get();<a name="line.238"></a> +<span class="sourceLineNo">239</span> if (null != metaProvider) {<a name="line.239"></a> +<span class="sourceLineNo">240</span> try {<a name="line.240"></a> +<span class="sourceLineNo">241</span> metaProvider.shutdown();<a name="line.241"></a> +<span class="sourceLineNo">242</span> } catch(IOException ioe) {<a name="line.242"></a> +<span class="sourceLineNo">243</span> exception = ioe;<a name="line.243"></a> +<span class="sourceLineNo">244</span> }<a name="line.244"></a> <span class="sourceLineNo">245</span> }<a name="line.245"></a> -<span class="sourceLineNo">246</span> // close is called on a WALFactory with null provider in the case of contention handling<a name="line.246"></a> -<span class="sourceLineNo">247</span> // within the getInstance method.<a name="line.247"></a> -<span class="sourceLineNo">248</span> if (null != provider) {<a name="line.248"></a> -<span class="sourceLineNo">249</span> provider.close();<a name="line.249"></a> -<span class="sourceLineNo">250</span> }<a name="line.250"></a> -<span class="sourceLineNo">251</span> }<a name="line.251"></a> -<span class="sourceLineNo">252</span><a name="line.252"></a> -<span class="sourceLineNo">253</span> /**<a name="line.253"></a> -<span class="sourceLineNo">254</span> * Tell the underlying WAL providers to shut down, but do not clean up underlying storage.<a name="line.254"></a> -<span class="sourceLineNo">255</span> * If you are not ending cleanly and will need to replay edits from this factory's wals,<a name="line.255"></a> -<span class="sourceLineNo">256</span> * use this method if you can as it will try to leave things as tidy as possible.<a name="line.256"></a> -<span class="sourceLineNo">257</span> */<a name="line.257"></a> -<span class="sourceLineNo">258</span> public void shutdown() throws IOException {<a name="line.258"></a> -<span class="sourceLineNo">259</span> IOException exception = null;<a name="line.259"></a> -<span class="sourceLineNo">260</span> final WALProvider metaProvider = this.metaProvider.get();<a name="line.260"></a> -<span class="sourceLineNo">261</span> if (null != metaProvider) {<a name="line.261"></a> -<span class="sourceLineNo">262</span> try {<a name="line.262"></a> -<span class="sourceLineNo">263</span> metaProvider.shutdown();<a name="line.263"></a> -<span class="sourceLineNo">264</span> } catch(IOException ioe) {<a name="line.264"></a> -<span class="sourceLineNo">265</span> exception = ioe;<a name="line.265"></a> -<span class="sourceLineNo">266</span> }<a name="line.266"></a> -<span class="sourceLineNo">267</span> }<a name="line.267"></a> -<span class="sourceLineNo">268</span> provider.shutdown();<a name="line.268"></a> -<span class="sourceLineNo">269</span> if (null != exception) {<a name="line.269"></a> -<span class="sourceLineNo">270</span> throw exception;<a name="line.270"></a> -<span class="sourceLineNo">271</span> }<a name="line.271"></a> -<span class="sourceLineNo">272</span> }<a name="line.272"></a> -<span class="sourceLineNo">273</span><a name="line.273"></a> -<span class="sourceLineNo">274</span> public List<WAL> getWALs() {<a name="line.274"></a> -<span class="sourceLineNo">275</span> return provider.getWALs();<a name="line.275"></a> -<span class="sourceLineNo">276</span> }<a name="line.276"></a> -<span class="sourceLineNo">277</span><a name="line.277"></a> -<span class="sourceLineNo">278</span> @VisibleForTesting<a name="line.278"></a> -<span class="sourceLineNo">279</span> WALProvider getMetaProvider() throws IOException {<a name="line.279"></a> -<span class="sourceLineNo">280</span> for (;;) {<a name="line.280"></a> -<span class="sourceLineNo">281</span> WALProvider provider = this.metaProvider.get();<a name="line.281"></a> -<span class="sourceLineNo">282</span> if (provider != null) {<a name="line.282"></a> -<span class="sourceLineNo">283</span> return provider;<a name="line.283"></a> -<span class="sourceLineNo">284</span> }<a name="line.284"></a> -<span class="sourceLineNo">285</span> boolean metaWALProvPresent = conf.get(META_WAL_PROVIDER_CLASS) != null;<a name="line.285"></a> -<span class="sourceLineNo">286</span> provider = createProvider(getProviderClass(<a name="line.286"></a> -<span class="sourceLineNo">287</span> metaWALProvPresent ? META_WAL_PROVIDER_CLASS : WAL_PROVIDER_CLASS,<a name="line.287"></a> -<span class="sourceLineNo">288</span> META_WAL_PROVIDER, conf.get(WAL_PROVIDER, DEFAULT_WAL_PROVIDER)));<a name="line.288"></a> -<span class="sourceLineNo">289</span> provider.init(this, conf, AbstractFSWALProvider.META_WAL_PROVIDER_ID);<a name="line.289"></a> -<span class="sourceLineNo">290</span> provider.addWALActionsListener(new MetricsWAL());<a name="line.290"></a> -<span class="sourceLineNo">291</span> if (metaProvider.compareAndSet(null, provider)) {<a name="line.291"></a> -<span class="sourceLineNo">292</span> return provider;<a name="line.292"></a> -<span class="sourceLineNo">293</span> } else {<a name="line.293"></a> -<span class="sourceLineNo">294</span> // someone is ahead of us, close and try again.<a name="line.294"></a> -<span class="sourceLineNo">295</span> provider.close();<a name="line.295"></a> -<span class="sourceLineNo">296</span> }<a name="line.296"></a> -<span class="sourceLineNo">297</span> }<a name="line.297"></a> -<span class="sourceLineNo">298</span> }<a name="line.298"></a> -<span class="sourceLineNo">299</span><a name="line.299"></a> -<span class="sourceLineNo">300</span> /**<a name="line.300"></a> -<span class="sourceLineNo">301</span> * @param region the region which we want to get a WAL for it. Could be null.<a name="line.301"></a> -<span class="sourceLineNo">302</span> */<a name="line.302"></a> -<span class="sourceLineNo">303</span> public WAL getWAL(RegionInfo region) throws IOException {<a name="line.303"></a> -<span class="sourceLineNo">304</span> // use different WAL for hbase:meta<a name="line.304"></a> -<span class="sourceLineNo">305</span> if (region != null && region.isMetaRegion() &&<a name="line.305"></a> -<span class="sourceLineNo">306</span> region.getReplicaId() == RegionInfo.DEFAULT_REPLICA_ID) {<a name="line.306"></a> -<span class="sourceLineNo">307</span> return getMetaProvider().getWAL(region);<a name="line.307"></a> -<span class="sourceLineNo">308</span> } else {<a name="line.308"></a> -<span class="sourceLineNo">309</span> return provider.getWAL(region);<a name="line.309"></a> -<span class="sourceLineNo">310</span> }<a name="line.310"></a> -<span class="sourceLineNo">311</span> }<a name="line.311"></a> -<span class="sourceLineNo">312</span><a name="line.312"></a> -<span class="sourceLineNo">313</span> public Reader createReader(final FileSystem fs, final Path path) throws IOException {<a name="line.313"></a> -<span class="sourceLineNo">314</span> return createReader(fs, path, (CancelableProgressable)null);<a name="line.314"></a> -<span class="sourceLineNo">315</span> }<a name="line.315"></a> -<span class="sourceLineNo">316</span><a name="line.316"></a> -<span class="sourceLineNo">317</span> /**<a name="line.317"></a> -<span class="sourceLineNo">318</span> * Create a reader for the WAL. If you are reading from a file that's being written to and need<a name="line.318"></a> -<span class="sourceLineNo">319</span> * to reopen it multiple times, use {@link WAL.Reader#reset()} instead of this method<a name="line.319"></a> -<span class="sourceLineNo">320</span> * then just seek back to the last known good position.<a name="line.320"></a> -<span class="sourceLineNo">321</span> * @return A WAL reader. 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If you are reading from a file that's being written to and need<a name="line.294"></a> +<span class="sourceLineNo">295</span> * to reopen it multiple times, use {@link WAL.Reader#reset()} instead of this method<a name="line.295"></a> +<span class="sourceLineNo">296</span> * then just seek back to the last known good position.<a name="line.296"></a> +<span class="sourceLineNo">297</span> * @return A WAL reader. Close when done with it.<a name="line.297"></a> +<span class="sourceLineNo">298</span> * @throws IOException<a name="line.298"></a> +<span class="sourceLineNo">299</span> */<a name="line.299"></a> +<span class="sourceLineNo">300</span> public Reader createReader(final FileSystem fs, final Path path,<a name="line.300"></a> +<span class="sourceLineNo">301</span> CancelableProgressable reporter) throws IOException {<a name="line.301"></a> +<span class="sourceLineNo">302</span> return createReader(fs, path, reporter, true);<a name="line.302"></a> +<span class="sourceLineNo">303</span> }<a name="line.303"></a> +<span class="sourceLineNo">304</span><a name="line.304"></a> +<span class="sourceLineNo">305</span> public Reader createReader(final FileSystem fs, final Path path, CancelableProgressable reporter,<a name="line.305"></a> +<span class="sourceLineNo">306</span> boolean allowCustom) throws IOException {<a name="line.306"></a> +<span class="sourceLineNo">307</span> Class<? extends AbstractFSWALProvider.Reader> lrClass =<a name="line.307"></a> +<span class="sourceLineNo">308</span> allowCustom ? logReaderClass : ProtobufLogReader.class;<a name="line.308"></a> +<span class="sourceLineNo">309</span> try {<a name="line.309"></a> +<span class="sourceLineNo">310</span> // A wal file could be under recovery, so it may take several<a name="line.310"></a> +<span class="sourceLineNo">311</span> // tries to get it open. Instead of claiming it is corrupted, retry<a name="line.311"></a> +<span class="sourceLineNo">312</span> // to open it up to 5 minutes by default.<a name="line.312"></a> +<span class="sourceLineNo">313</span> long startWaiting = EnvironmentEdgeManager.currentTime();<a name="line.313"></a> +<span class="sourceLineNo">314</span> long openTimeout = timeoutMillis + startWaiting;<a name="line.314"></a> +<span class="sourceLineNo">315</span> int nbAttempt = 0;<a name="line.315"></a> +<span class="sourceLineNo">316</span> AbstractFSWALProvider.Reader reader = null;<a name="line.316"></a> +<span class="sourceLineNo">317</span> while (true) {<a name="line.317"></a> +<span class="sourceLineNo">318</span> try {<a name="line.318"></a> +<span class="sourceLineNo">319</span> reader = lrClass.getDeclaredConstructor().newInstance();<a name="line.319"></a> +<span class="sourceLineNo">320</span> reader.init(fs, path, conf, null);<a name="line.320"></a> +<span class="sourceLineNo">321</span> return reader;<a name="line.321"></a> +<span class="sourceLineNo">322</span> } catch (IOException e) {<a name="line.322"></a> +<span class="sourceLineNo">323</span> if (reader != null) {<a name="line.323"></a> +<span class="sourceLineNo">324</span> try {<a name="line.324"></a> +<span class="sourceLineNo">325</span> reader.close();<a name="line.325"></a> +<span class="sourceLineNo">326</span> } catch (IOException exception) {<a name="line.326"></a> +<span class="sourceLineNo">327</span> LOG.warn("Could not close FSDataInputStream" + exception.getMessage());<a name="line.327"></a> +<span class="sourceLineNo">328</span> LOG.debug("exception details", exception);<a name="line.328"></a> +<span class="sourceLineNo">329</span> }<a name="line.329"></a> +<span class="sourceLineNo">330</span> }<a name="line.330"></a> +<span class="sourceLineNo">331</span><a name="line.331"></a> +<span class="sourceLineNo">332</span> String msg = e.getMessage();<a name="line.332"></a> +<span class="sourceLineNo">333</span> if (msg != null<a name="line.333"></a> +<span class="sourceLineNo">334</span> && (msg.contains("Cannot obtain block length")<a name="line.334"></a> +<span class="sourceLineNo">335</span> || msg.contains("Could not obtain the last block") || msg<a name="line.335"></a> +<span class="sourceLineNo">336</span> .matches("Blocklist for [^ ]* has changed.*"))) {<a name="line.336"></a> +<span class="sourceLineNo">337</span> if (++nbAttempt == 1) {<a name="line.337"></a> +<span class="sourceLineNo">338</span> LOG.warn("Lease should have recovered. This is not expected. Will retry", e);<a name="line.338"></a> +<span class="sourceLineNo">339</span> }<a name="line.339"></a> +<span class="sourceLineNo">340</span> if (reporter != null && !reporter.progress()) {<a name="line.340"></a> +<span class="sourceLineNo">341</span> throw new InterruptedIOException("Operation is cancelled");<a name="line.341"></a> +<span class="sourceLineNo">342</span> }<a name="line.342"></a> +<span class="sourceLineNo">343</span> if (nbAttempt > 2 && openTimeout < EnvironmentEdgeManager.currentTime()) {<a name="line.343"></a> +<span class="sourceLineNo">344</span> LOG.error("Can't open after " + nbAttempt + " attempts and "<a name="line.344"></a> +<span class="sourceLineNo">345</span> + (EnvironmentEdgeManager.currentTime() - startWaiting) + "ms " + " for " + path);<a name="line.345"></a> +<span class="sourceLineNo">346</span> } else {<a name="line.346"></a> +<span class="sourceLineNo">347</span> try {<a name="line.347"></a> +<span class="sourceLineNo">348</span> Thread.sleep(nbAttempt < 3 ? 500 : 1000);<a name="line.348"></a> +<span class="sourceLineNo">349</span> continue; // retry<a name="line.349"></a> +<span class="sourceLineNo">350</span> } catch (InterruptedException ie) {<a name="line.350"></a> +<span class="sourceLineNo">351</span> InterruptedIOException iioe = new InterruptedIOException();<a name="line.351"></a> +<span class="sourceLineNo">352</span> iioe.initCause(ie);<a name="line.352"></a> +<span class="sourceLineNo">353</span> throw iioe;<a name="line.353"></a> +<span class="sourceLineNo">354</span> }<a name="line.354"></a> +<span class="sourceLineNo">355</span> }<a name="line.355"></a> +<span class="sourceLineNo">356</span> throw new LeaseNotRecoveredException(e);<a name="line.356"></a> +<span class="sourceLineNo">357</span> } else {<a name="line.357"></a> +<span class="sourceLineNo">358</span> throw e;<a name="line.358"></a> +<span class="sourceLineNo">359</span> }<a name="line.359"></a> +<span class="sourceLineNo">360</span> }<a name="line.360"></a> +<span class="sourceLineNo">361</span> }<a name="line.361"></a> +<span class="sourceLineNo">362</span> } catch (IOException ie) {<a name="line.362"></a> +<span class="sourceLineNo">363</span> throw ie;<a name="line.363"></a> +<span class="sourceLineNo">364</span> } catch (Exception e) {<a name="line.364"></a> +<span class="sourceLineNo">365</span> throw new IOException("Cannot get log reader", e);<a name="line.365"></a> +<span class="sourceLineNo">366</span> }<a name="line.366"></a> +<span class="sourceLineNo">367</span> }<a name="line.367"></a> +<span class="sourceLineNo">368</span><a name="line.368"></a> +<span class="sourceLineNo">369</span> /**<a name="line.369"></a> +<span class="sourceLineNo">370</span> * Create a writer for the WAL.<a name="line.370"></a> +<span class="sourceLineNo">371</span> * Uses defaults.<a name="line.371"></a> +<span class="sourceLineNo">372</span> * <p><a name="line.372"></a> +<span class="sourceLineNo">373</span> * Should be package-private. public only for tests and<a name="line.373"></a> +<span class="sourceLineNo">374</span> * {@link org.apache.hadoop.hbase.regionserver.wal.Compressor}<a name="line.374"></a> +<span class="sourceLineNo">375</span> * @return A WAL writer. Close when done with it.<a name="line.375"></a> +<span class="sourceLineNo">376</span> */<a name="line.376"></a> +<span class="sourceLineNo">377</span> public Writer createWALWriter(final FileSystem fs, final Path path) throws IOException {<a name="line.377"></a> +<span class="sourceLineNo">378</span> return FSHLogProvider.createWriter(conf, fs, path, false);<a name="line.378"></a> +<span class="sourceLineNo">379</span> }<a name="line.379"></a> +<span class="sourceLineNo">380</span><a name="line.380"></a> +<span class="sourceLineNo">381</span> /**<a name="line.381"></a> +<span class="sourceLineNo">382</span> * Should be package-private, visible for recovery testing.<a name="line.382"></a> +<span class="sourceLineNo">383</span> * Uses defaults.<a name="line.383"></a> +<span class="sourceLineNo">384</span> * @return an overwritable writer for recovered edits. caller should close.<a name="line.384"></a> +<span class="sourceLineNo">385</span> */<a name="line.385"></a> +<span class="sourceLineNo">386</span> @VisibleForTesting<a name="line.386"></a> +<span class="sourceLineNo">387</span> public Writer createRecoveredEditsWriter(final FileSystem fs, final Path path)<a name="line.387"></a> +<span class="sourceLineNo">388</span> throws IOException {<a name="line.388"></a> +<span class="sourceLineNo">389</span> return FSHLogProvider.createWriter(conf, fs, path, true);<a name="line.389"></a> +<span class="sourceLineNo">390</span> }<a name="line.390"></a> +<span class="sourceLineNo">391</span><a name="line.391"></a> +<span class="sourceLineNo">392</span> // These static methods are currently used where it's impractical to<a name="line.392"></a> +<span class="sourceLineNo">393</span> // untangle the reliance on state in the filesystem. They rely on singleton<a name="line.393"></a> +<span class="sourceLineNo">394</span> // WALFactory that just provides Reader / Writers.<a name="line.394"></a> +<span class="sourceLineNo">395</span> // For now, first Configuration object wins. Practically this just impacts the reader/writer class<a name="line.395"></a> +<span class="sourceLineNo">396</span> private static final AtomicReference<WALFactory> singleton = new AtomicReference<>();<a name="line.396"></a> +<span class="sourceLineNo">397</span> private static final String SINGLETON_ID = WALFactory.class.getName();<a name="line.397"></a> +<span class="sourceLineNo">398</span> <a name="line.398"></a> +<span class="sourceLineNo">399</span> // Public only for FSHLog<a name="line.399"></a> +<span class="sourceLineNo">400</span> public static WALFactory getInstance(Configuration configuration) {<a name="line.400"></a> +<span class="sourceLineNo">401</span> WALFactory factory = singleton.get();<a name="line.401"></a> +<span class="sourceLineNo">402</span> if (null == factory) {<a name="line.402"></a> +<span class="sourceLineNo">403</span> WALFactory temp = new WALFactory(configuration);<a name="line.403"></a> +<span class="sourceLineNo">404</span> if (singleton.compareAndSet(null, temp)) {<a name="line.404"></a> +<span class="sourceLineNo">405</span> factory = temp;<a name="line.405"></a> +<span class="sourceLineNo">406</span> } else {<a name="line.406"></a> +<span class="sourceLineNo">407</span> // someone else beat us to initializing<a name="line.407"></a> +<span class="sourceLineNo">408</span> try {<a name="line.408"></a> +<span class="sourceLineNo">409</span> temp.close();<a name="line.409"></a> +<span class="sourceLineNo">410</span> } catch (IOException exception) {<a name="line.410"></a> +<span class="sourceLineNo">411</span> LOG.debug("failed to close temporary singleton. ignoring.", exception);<a name="line.411"></a> +<span class="sourceLineNo">412</span> }<a name="line.412"></a> +<span class="sourceLineNo">413</span> factory = singleton.get();<a name="line.413"></a> +<span class="sourceLineNo">414</span> }<a name="line.414"></a> +<span class="sourceLineNo">415</span> }<a name="line.415"></a> +<span class="sourceLineNo">416</span> return factory;<a name="line.416"></a> +<span class="sourceLineNo">417</span> }<a name="line.417"></a> +<span class="sourceLineNo">418</span><a name="line.418"></a> +<span class="sourceLineNo">419</span> /**<a name="line.419"></a> +<span class="sourceLineNo">420</span> * Create a reader for the given path, accept custom reader classes from conf.<a name="line.420"></a> +<span class="sourceLineNo">421</span> * If you already have a WALFactory, you should favor the instance method.<a name="line.421"></a> +<span class="sourceLineNo">422</span> * @return a WAL Reader, caller must close.<a name="line.422"></a> +<span class="sourceLineNo">423</span> */<a name="line.423"></a> +<span class="sourceLineNo">424</span> public static Reader createReader(final FileSystem fs, final Path path,<a name="line.424"></a> +<span class="sourceLineNo">425</span> final Configuration configuration) throws IOException {<a name="line.425"></a> +<span class="sourceLineNo">426</span> return getInstance(configuration).createReader(fs, path);<a name="line.426"></a> +<span class="sourceLineNo">427</span> }<a name="line.427"></a> +<span class="sourceLineNo">428</span><a name="line.428"></a> +<span class="sourceLineNo">429</span> /**<a name="line.429"></a> +<span class="sourceLineNo">430</span> * Create a reader for the given path, accept custom reader classes from conf.<a name="line.430"></a> +<span class="sourceLineNo">431</span> * If you already have a WALFactory, you should favor the instance method.<a name="line.431"></a> +<span class="sourceLineNo">432</span> * @return a WAL Reader, caller must close.<a name="line.432"></a> +<span class="sourceLineNo">433</span> */<a name="line.433"></a> +<span class="sourceLineNo">434</span> static Reader createReader(final FileSystem fs, final Path path,<a name="line.434"></a> +<span class="sourceLineNo">435</span> final Configuration configuration, final CancelableProgressable reporter) throws IOException {<a name="line.435"></a> +<span class="sourceLineNo">436</span> return getInstance(configuration).createReader(fs, path, reporter);<a name="line.436"></a> +<span class="sourceLineNo">437</span> }<a name="line.437"></a> +<span class="sourceLineNo">438</span><a name="line.438"></a> +<span class="sourceLineNo">439</span> /**<a name="line.439"></a> +<span class="sourceLineNo">440</span> * Create a reader for the given path, ignore custom reader classes from conf.<a name="line.440"></a> +<span class="sourceLineNo">441</span> * If you already have a WALFactory, you should favor the instance method.<a name="line.441"></a> +<span class="sourceLineNo">442</span> * only public pending move of {@link org.apache.hadoop.hbase.regionserver.wal.Compressor}<a name="line.442"></a> +<span class="sourceLineNo">443</span> * @return a WAL Reader, caller must close.<a name="line.443"></a> +<span class="sourceLineNo">444</span> */<a name="line.444"></a> +<span class="sourceLineNo">445</span> public static Reader createReaderIgnoreCustomClass(final FileSystem fs, final Path path,<a name="line.445"></a> +<span class="sourceLineNo">446</span> final Configuration configuration) throws IOException {<a name="line.446"></a> +<span class="sourceLineNo">447</span> return getInstance(configuration).createReader(fs, path, null, false);<a name="line.447"></a> +<span class="sourceLineNo">448</span> }<a name="line.448"></a> +<span class="sourceLineNo">449</span><a name="line.449"></a> +<span class="sourceLineNo">450</span> /**<a name="line.450"></a> +<span class="sourceLineNo">451</span> * If you already have a WALFactory, you should favor the instance method.<a name="line.451"></a> +<span class="sourceLineNo">452</span> * Uses defaults.<a name="line.452"></a> +<span class="sourceLineNo">453</span> * @return a Writer that will overwrite files. Caller must close.<a name="line.453"></a> +<span class="sourceLineNo">454</span> */<a name="line.454"></a> +<span class="sourceLineNo">455</span> static Writer createRecoveredEditsWriter(final FileSystem fs, final Path path,<a name="line.455"></a> +<span class="sourceLineNo">456</span> final Configuration configuration)<a name="line.456"></a> +<span class="sourceLineNo">457</span> throws IOException {<a name="line.457"></a> +<span class="sourceLineNo">458</span> return FSHLogProvider.createWriter(configuration, fs, path, true);<a name="line.458"></a> +<span class="sourceLineNo">459</span> }<a name="line.459"></a> +<span class="sourceLineNo">460</span><a name="line.460"></a> +<span class="sourceLineNo">461</span> /**<a name="line.461"></a> +<span class="sourceLineNo">462</span> * If you already have a WALFactory, you should favor the instance method.<a name="line.462"></a> +<span class="sourceLineNo">463</span> * Uses defaults.<a name="line.463"></a> +<span class="sourceLineNo">464</span> * @return a writer that won't overwrite files. Caller must close.<a name="line.464"></a> +<span class="sourceLineNo">465</span> */<a name="line.465"></a> +<span class="sourceLineNo">466</span> @VisibleForTesting<a name="line.466"></a> +<span class="sourceLineNo">467</span> public static Writer createWALWriter(final FileSystem fs, final Path path,<a name="line.467"></a> +<span class="sourceLineNo">468</span> final Configuration configuration)<a name="line.468"></a> +<span class="sourceLineNo">469</span> throws IOException {<a name="line.469"></a> +<span class="sourceLineNo">470</span> return FSHLogProvider.createWriter(configuration, fs, path, false);<a name="line.470"></a> +<span class="sourceLineNo">471</span> }<a name="line.471"></a> +<span class="sourceLineNo">472</span><a name="line.472"></a> +<span class="sourceLineNo">473</span> public final WALProvider getWALProvider() {<a name="line.473"></a> +<span class="sourceLineNo">474</span> return this.provider;<a name="line.474"></a> +<span class="sourceLineNo">475</span> }<a name="line.475"></a> +<span class="sourceLineNo">476</span><a name="line.476"></a> +<span class="sourceLineNo">477</span> public final WALProvider getMetaWALProvider() {<a name="line.477"></a> +<span class="sourceLineNo">478</span> return this.metaProvider.get();<a name="line.478"></a> +<span class="sourceLineNo">479</span> }<a name="line.479"></a> +<span class="sourceLineNo">480</span>}<a name="line.480"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d1341859/downloads.html ---------------------------------------------------------------------- diff --git a/downloads.html b/downloads.html index 6ba0cc1..35d0a86 100644 --- a/downloads.html +++ b/downloads.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20181011" /> + <meta name="Date-Revision-yyyymmdd" content="20181012" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – Apache HBase Downloads</title> <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" /> @@ -423,7 +423,7 @@ under the License. --> <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2018-10-11</li> + <li id="publishDate" class="pull-right">Last Published: 2018-10-12</li> </p> </div> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d1341859/export_control.html ---------------------------------------------------------------------- diff --git a/export_control.html b/export_control.html index 13bbb7a..86acd11 100644 --- a/export_control.html +++ b/export_control.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20181011" /> + <meta name="Date-Revision-yyyymmdd" content="20181012" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – Export Control @@ -331,7 +331,7 @@ for more details.</p> <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2018-10-11</li> + <li id="publishDate" class="pull-right">Last Published: 2018-10-12</li> </p> </div> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d1341859/index.html ---------------------------------------------------------------------- diff --git a/index.html b/index.html index e5868b3..33860e2 100644 --- a/index.html +++ b/index.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20181011" /> + <meta name="Date-Revision-yyyymmdd" content="20181012" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – Apache HBase⢠Home</title> <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" /> @@ -411,7 +411,7 @@ Apache HBase is an open-source, distributed, versioned, non-relational database <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2018-10-11</li> + <li id="publishDate" class="pull-right">Last Published: 2018-10-12</li> </p> </div> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d1341859/integration.html ---------------------------------------------------------------------- diff --git a/integration.html b/integration.html index 838a113..2ebf729 100644 --- a/integration.html +++ b/integration.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20181011" /> + <meta name="Date-Revision-yyyymmdd" content="20181012" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – CI Management</title> <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" /> @@ -291,7 +291,7 @@ <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2018-10-11</li> + <li id="publishDate" class="pull-right">Last Published: 2018-10-12</li> </p> </div> http://git-wip-us.apache.org/repos/asf/hbase-site/blob/d1341859/issue-tracking.html ---------------------------------------------------------------------- diff --git a/issue-tracking.html b/issue-tracking.html index d89d18c..8fd35a7 100644 --- a/issue-tracking.html +++ b/issue-tracking.html @@ -7,7 +7,7 @@ <head> <meta charset="UTF-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /> - <meta name="Date-Revision-yyyymmdd" content="20181011" /> + <meta name="Date-Revision-yyyymmdd" content="20181012" /> <meta http-equiv="Content-Language" content="en" /> <title>Apache HBase – Issue Management</title> <link rel="stylesheet" href="./css/apache-maven-fluido-1.4-HBase.min.css" /> @@ -288,7 +288,7 @@ <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved. - <li id="publishDate" class="pull-right">Last Published: 2018-10-11</li> + <li id="publishDate" class="pull-right">Last Published: 2018-10-12</li> </p> </div>