http://git-wip-us.apache.org/repos/asf/hbase-site/blob/bd10ee7c/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html index 8e10cf2..c2b4026 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/wal/AbstractFSWALProvider.Reader.html @@ -48,452 +48,480 @@ <span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.util.CancelableProgressable;<a name="line.40"></a> <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.41"></a> <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.util.LeaseNotRecoveredException;<a name="line.42"></a> -<span class="sourceLineNo">043</span><a name="line.43"></a> -<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.44"></a> -<span class="sourceLineNo">045</span><a name="line.45"></a> -<span class="sourceLineNo">046</span>/**<a name="line.46"></a> -<span class="sourceLineNo">047</span> * Base class of a WAL Provider that returns a single thread safe WAL that writes to Hadoop FS. By<a name="line.47"></a> -<span class="sourceLineNo">048</span> * default, this implementation picks a directory in Hadoop FS based on a combination of<a name="line.48"></a> -<span class="sourceLineNo">049</span> * <ul><a name="line.49"></a> -<span class="sourceLineNo">050</span> * <li>the HBase root directory<a name="line.50"></a> -<span class="sourceLineNo">051</span> * <li>HConstants.HREGION_LOGDIR_NAME<a name="line.51"></a> -<span class="sourceLineNo">052</span> * <li>the given factory's factoryId (usually identifying the regionserver by host:port)<a name="line.52"></a> -<span class="sourceLineNo">053</span> * </ul><a name="line.53"></a> -<span class="sourceLineNo">054</span> * It also uses the providerId to differentiate among files.<a name="line.54"></a> -<span class="sourceLineNo">055</span> */<a name="line.55"></a> -<span class="sourceLineNo">056</span>@InterfaceAudience.Private<a name="line.56"></a> -<span class="sourceLineNo">057</span>@InterfaceStability.Evolving<a name="line.57"></a> -<span class="sourceLineNo">058</span>public abstract class AbstractFSWALProvider<T extends AbstractFSWAL<?>> implements WALProvider {<a name="line.58"></a> -<span class="sourceLineNo">059</span><a name="line.59"></a> -<span class="sourceLineNo">060</span> private static final Log LOG = LogFactory.getLog(AbstractFSWALProvider.class);<a name="line.60"></a> -<span class="sourceLineNo">061</span><a name="line.61"></a> -<span class="sourceLineNo">062</span> // Only public so classes back in regionserver.wal can access<a name="line.62"></a> -<span class="sourceLineNo">063</span> public interface Reader extends WAL.Reader {<a name="line.63"></a> -<span class="sourceLineNo">064</span> /**<a name="line.64"></a> -<span class="sourceLineNo">065</span> * @param fs File system.<a name="line.65"></a> -<span class="sourceLineNo">066</span> * @param path Path.<a name="line.66"></a> -<span class="sourceLineNo">067</span> * @param c Configuration.<a name="line.67"></a> -<span class="sourceLineNo">068</span> * @param s Input stream that may have been pre-opened by the caller; may be null.<a name="line.68"></a> -<span class="sourceLineNo">069</span> */<a name="line.69"></a> -<span class="sourceLineNo">070</span> void init(FileSystem fs, Path path, Configuration c, FSDataInputStream s) throws IOException;<a name="line.70"></a> -<span class="sourceLineNo">071</span> }<a name="line.71"></a> -<span class="sourceLineNo">072</span><a name="line.72"></a> -<span class="sourceLineNo">073</span> protected volatile T wal;<a name="line.73"></a> -<span class="sourceLineNo">074</span> protected WALFactory factory = null;<a name="line.74"></a> -<span class="sourceLineNo">075</span> protected Configuration conf = null;<a name="line.75"></a> -<span class="sourceLineNo">076</span> protected List<WALActionsListener> listeners = null;<a name="line.76"></a> -<span class="sourceLineNo">077</span> protected String providerId = null;<a name="line.77"></a> -<span class="sourceLineNo">078</span> protected AtomicBoolean initialized = new AtomicBoolean(false);<a name="line.78"></a> -<span class="sourceLineNo">079</span> // for default wal provider, logPrefix won't change<a name="line.79"></a> -<span class="sourceLineNo">080</span> protected String logPrefix = null;<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> * we synchronized on walCreateLock to prevent wal recreation in different threads<a name="line.83"></a> -<span class="sourceLineNo">084</span> */<a name="line.84"></a> -<span class="sourceLineNo">085</span> private final Object walCreateLock = new Object();<a name="line.85"></a> -<span class="sourceLineNo">086</span><a name="line.86"></a> -<span class="sourceLineNo">087</span> /**<a name="line.87"></a> -<span class="sourceLineNo">088</span> * @param factory factory that made us, identity used for FS layout. may not be null<a name="line.88"></a> -<span class="sourceLineNo">089</span> * @param conf may not be null<a name="line.89"></a> -<span class="sourceLineNo">090</span> * @param listeners may be null<a name="line.90"></a> -<span class="sourceLineNo">091</span> * @param providerId differentiate between providers from one factory, used for FS layout. may be<a name="line.91"></a> -<span class="sourceLineNo">092</span> * null<a name="line.92"></a> -<span class="sourceLineNo">093</span> */<a name="line.93"></a> -<span class="sourceLineNo">094</span> @Override<a name="line.94"></a> -<span class="sourceLineNo">095</span> public void init(WALFactory factory, Configuration conf, List<WALActionsListener> listeners,<a name="line.95"></a> -<span class="sourceLineNo">096</span> String providerId) throws IOException {<a name="line.96"></a> -<span class="sourceLineNo">097</span> if (!initialized.compareAndSet(false, true)) {<a name="line.97"></a> -<span class="sourceLineNo">098</span> throw new IllegalStateException("WALProvider.init should only be called once.");<a name="line.98"></a> -<span class="sourceLineNo">099</span> }<a name="line.99"></a> -<span class="sourceLineNo">100</span> this.factory = factory;<a name="line.100"></a> -<span class="sourceLineNo">101</span> this.conf = conf;<a name="line.101"></a> -<span class="sourceLineNo">102</span> this.listeners = listeners;<a name="line.102"></a> -<span class="sourceLineNo">103</span> this.providerId = providerId;<a name="line.103"></a> -<span class="sourceLineNo">104</span> // get log prefix<a name="line.104"></a> -<span class="sourceLineNo">105</span> StringBuilder sb = new StringBuilder().append(factory.factoryId);<a name="line.105"></a> -<span class="sourceLineNo">106</span> if (providerId != null) {<a name="line.106"></a> -<span class="sourceLineNo">107</span> if (providerId.startsWith(WAL_FILE_NAME_DELIMITER)) {<a name="line.107"></a> -<span class="sourceLineNo">108</span> sb.append(providerId);<a name="line.108"></a> -<span class="sourceLineNo">109</span> } else {<a name="line.109"></a> -<span class="sourceLineNo">110</span> sb.append(WAL_FILE_NAME_DELIMITER).append(providerId);<a name="line.110"></a> -<span class="sourceLineNo">111</span> }<a name="line.111"></a> -<span class="sourceLineNo">112</span> }<a name="line.112"></a> -<span class="sourceLineNo">113</span> logPrefix = sb.toString();<a name="line.113"></a> -<span class="sourceLineNo">114</span> doInit(conf);<a name="line.114"></a> -<span class="sourceLineNo">115</span> }<a name="line.115"></a> -<span class="sourceLineNo">116</span><a name="line.116"></a> -<span class="sourceLineNo">117</span> @Override<a name="line.117"></a> -<span class="sourceLineNo">118</span> public List<WAL> getWALs() {<a name="line.118"></a> -<span class="sourceLineNo">119</span> if (wal == null) {<a name="line.119"></a> -<span class="sourceLineNo">120</span> return Collections.emptyList();<a name="line.120"></a> -<span class="sourceLineNo">121</span> }<a name="line.121"></a> -<span class="sourceLineNo">122</span> List<WAL> wals = new ArrayList<>(1);<a name="line.122"></a> -<span class="sourceLineNo">123</span> wals.add(wal);<a name="line.123"></a> -<span class="sourceLineNo">124</span> return wals;<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> @Override<a name="line.127"></a> -<span class="sourceLineNo">128</span> public T getWAL(byte[] identifier, byte[] namespace) throws IOException {<a name="line.128"></a> -<span class="sourceLineNo">129</span> T walCopy = wal;<a name="line.129"></a> -<span class="sourceLineNo">130</span> if (walCopy == null) {<a name="line.130"></a> -<span class="sourceLineNo">131</span> // only lock when need to create wal, and need to lock since<a name="line.131"></a> -<span class="sourceLineNo">132</span> // creating hlog on fs is time consuming<a name="line.132"></a> -<span class="sourceLineNo">133</span> synchronized (walCreateLock) {<a name="line.133"></a> -<span class="sourceLineNo">134</span> walCopy = wal;<a name="line.134"></a> -<span class="sourceLineNo">135</span> if (walCopy == null) {<a name="line.135"></a> -<span class="sourceLineNo">136</span> walCopy = createWAL();<a name="line.136"></a> -<span class="sourceLineNo">137</span> wal = walCopy;<a name="line.137"></a> -<span class="sourceLineNo">138</span> }<a name="line.138"></a> -<span class="sourceLineNo">139</span> }<a name="line.139"></a> -<span class="sourceLineNo">140</span> }<a name="line.140"></a> -<span class="sourceLineNo">141</span> return walCopy;<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> protected abstract T createWAL() throws IOException;<a name="line.144"></a> -<span class="sourceLineNo">145</span><a name="line.145"></a> -<span class="sourceLineNo">146</span> protected abstract void doInit(Configuration conf) throws IOException;<a name="line.146"></a> -<span class="sourceLineNo">147</span><a name="line.147"></a> -<span class="sourceLineNo">148</span> @Override<a name="line.148"></a> -<span class="sourceLineNo">149</span> public void shutdown() throws IOException {<a name="line.149"></a> -<span class="sourceLineNo">150</span> T log = this.wal;<a name="line.150"></a> -<span class="sourceLineNo">151</span> if (log != null) {<a name="line.151"></a> -<span class="sourceLineNo">152</span> log.shutdown();<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> @Override<a name="line.156"></a> -<span class="sourceLineNo">157</span> public void close() throws IOException {<a name="line.157"></a> -<span class="sourceLineNo">158</span> T log = this.wal;<a name="line.158"></a> -<span class="sourceLineNo">159</span> if (log != null) {<a name="line.159"></a> -<span class="sourceLineNo">160</span> log.close();<a name="line.160"></a> -<span class="sourceLineNo">161</span> }<a name="line.161"></a> -<span class="sourceLineNo">162</span> }<a name="line.162"></a> -<span class="sourceLineNo">163</span><a name="line.163"></a> -<span class="sourceLineNo">164</span> /**<a name="line.164"></a> -<span class="sourceLineNo">165</span> * iff the given WALFactory is using the DefaultWALProvider for meta and/or non-meta, count the<a name="line.165"></a> -<span class="sourceLineNo">166</span> * number of files (rolled and active). if either of them aren't, count 0 for that provider.<a name="line.166"></a> -<span class="sourceLineNo">167</span> */<a name="line.167"></a> -<span class="sourceLineNo">168</span> @Override<a name="line.168"></a> -<span class="sourceLineNo">169</span> public long getNumLogFiles() {<a name="line.169"></a> -<span class="sourceLineNo">170</span> T log = this.wal;<a name="line.170"></a> -<span class="sourceLineNo">171</span> return log == null ? 0 : log.getNumLogFiles();<a name="line.171"></a> -<span class="sourceLineNo">172</span> }<a name="line.172"></a> -<span class="sourceLineNo">173</span><a name="line.173"></a> -<span class="sourceLineNo">174</span> /**<a name="line.174"></a> -<span class="sourceLineNo">175</span> * iff the given WALFactory is using the DefaultWALProvider for meta and/or non-meta, count the<a name="line.175"></a> -<span class="sourceLineNo">176</span> * size of files (only rolled). if either of them aren't, count 0 for that provider.<a name="line.176"></a> -<span class="sourceLineNo">177</span> */<a name="line.177"></a> -<span class="sourceLineNo">178</span> @Override<a name="line.178"></a> -<span class="sourceLineNo">179</span> public long getLogFileSize() {<a name="line.179"></a> -<span class="sourceLineNo">180</span> T log = this.wal;<a name="line.180"></a> -<span class="sourceLineNo">181</span> return log == null ? 0 : log.getLogFileSize();<a name="line.181"></a> -<span class="sourceLineNo">182</span> }<a name="line.182"></a> -<span class="sourceLineNo">183</span><a name="line.183"></a> -<span class="sourceLineNo">184</span> /**<a name="line.184"></a> -<span class="sourceLineNo">185</span> * returns the number of rolled WAL files.<a name="line.185"></a> -<span class="sourceLineNo">186</span> */<a name="line.186"></a> -<span class="sourceLineNo">187</span> @VisibleForTesting<a name="line.187"></a> -<span class="sourceLineNo">188</span> public static int getNumRolledLogFiles(WAL wal) {<a name="line.188"></a> -<span class="sourceLineNo">189</span> return ((AbstractFSWAL<?>) wal).getNumRolledLogFiles();<a name="line.189"></a> -<span class="sourceLineNo">190</span> }<a name="line.190"></a> -<span class="sourceLineNo">191</span><a name="line.191"></a> -<span class="sourceLineNo">192</span> /**<a name="line.192"></a> -<span class="sourceLineNo">193</span> * returns the size of rolled WAL files.<a name="line.193"></a> -<span class="sourceLineNo">194</span> */<a name="line.194"></a> -<span class="sourceLineNo">195</span> @VisibleForTesting<a name="line.195"></a> -<span class="sourceLineNo">196</span> public static long getLogFileSize(WAL wal) {<a name="line.196"></a> -<span class="sourceLineNo">197</span> return ((AbstractFSWAL<?>) wal).getLogFileSize();<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> * return the current filename from the current wal.<a name="line.201"></a> -<span class="sourceLineNo">202</span> */<a name="line.202"></a> -<span class="sourceLineNo">203</span> @VisibleForTesting<a name="line.203"></a> -<span class="sourceLineNo">204</span> public static Path getCurrentFileName(final WAL wal) {<a name="line.204"></a> -<span class="sourceLineNo">205</span> return ((AbstractFSWAL<?>) wal).getCurrentFileName();<a name="line.205"></a> -<span class="sourceLineNo">206</span> }<a name="line.206"></a> -<span class="sourceLineNo">207</span><a name="line.207"></a> -<span class="sourceLineNo">208</span> /**<a name="line.208"></a> -<span class="sourceLineNo">209</span> * request a log roll, but don't actually do it.<a name="line.209"></a> -<span class="sourceLineNo">210</span> */<a name="line.210"></a> -<span class="sourceLineNo">211</span> @VisibleForTesting<a name="line.211"></a> -<span class="sourceLineNo">212</span> static void requestLogRoll(final WAL wal) {<a name="line.212"></a> -<span class="sourceLineNo">213</span> ((AbstractFSWAL<?>) wal).requestLogRoll();<a name="line.213"></a> -<span class="sourceLineNo">214</span> }<a name="line.214"></a> -<span class="sourceLineNo">215</span><a name="line.215"></a> -<span class="sourceLineNo">216</span> // should be package private; more visible for use in AbstractFSWAL<a name="line.216"></a> -<span class="sourceLineNo">217</span> public static final String WAL_FILE_NAME_DELIMITER = ".";<a name="line.217"></a> -<span class="sourceLineNo">218</span> /** The hbase:meta region's WAL filename extension */<a name="line.218"></a> -<span class="sourceLineNo">219</span> @VisibleForTesting<a name="line.219"></a> -<span class="sourceLineNo">220</span> public static final String META_WAL_PROVIDER_ID = ".meta";<a name="line.220"></a> -<span class="sourceLineNo">221</span> static final String DEFAULT_PROVIDER_ID = "default";<a name="line.221"></a> -<span class="sourceLineNo">222</span><a name="line.222"></a> -<span class="sourceLineNo">223</span> // Implementation details that currently leak in tests or elsewhere follow<a name="line.223"></a> -<span class="sourceLineNo">224</span> /** File Extension used while splitting an WAL into regions (HBASE-2312) */<a name="line.224"></a> -<span class="sourceLineNo">225</span> public static final String SPLITTING_EXT = "-splitting";<a name="line.225"></a> -<span class="sourceLineNo">226</span><a name="line.226"></a> -<span class="sourceLineNo">227</span> /**<a name="line.227"></a> -<span class="sourceLineNo">228</span> * It returns the file create timestamp from the file name. For name format see<a name="line.228"></a> -<span class="sourceLineNo">229</span> * {@link #validateWALFilename(String)} public until remaining tests move to o.a.h.h.wal<a name="line.229"></a> -<span class="sourceLineNo">230</span> * @param wal must not be null<a name="line.230"></a> -<span class="sourceLineNo">231</span> * @return the file number that is part of the WAL file name<a name="line.231"></a> -<span class="sourceLineNo">232</span> */<a name="line.232"></a> -<span class="sourceLineNo">233</span> @VisibleForTesting<a name="line.233"></a> -<span class="sourceLineNo">234</span> public static long extractFileNumFromWAL(final WAL wal) {<a name="line.234"></a> -<span class="sourceLineNo">235</span> final Path walName = ((AbstractFSWAL<?>) wal).getCurrentFileName();<a name="line.235"></a> -<span class="sourceLineNo">236</span> if (walName == null) {<a name="line.236"></a> -<span class="sourceLineNo">237</span> throw new IllegalArgumentException("The WAL path couldn't be null");<a name="line.237"></a> -<span class="sourceLineNo">238</span> }<a name="line.238"></a> -<span class="sourceLineNo">239</span> final String[] walPathStrs = walName.toString().split("\\" + WAL_FILE_NAME_DELIMITER);<a name="line.239"></a> -<span class="sourceLineNo">240</span> return Long.parseLong(walPathStrs[walPathStrs.length - (isMetaFile(walName) ? 2 : 1)]);<a name="line.240"></a> -<span class="sourceLineNo">241</span> }<a name="line.241"></a> -<span class="sourceLineNo">242</span><a name="line.242"></a> -<span class="sourceLineNo">243</span> /**<a name="line.243"></a> -<span class="sourceLineNo">244</span> * Pattern used to validate a WAL file name see {@link #validateWALFilename(String)} for<a name="line.244"></a> -<span class="sourceLineNo">245</span> * description.<a name="line.245"></a> -<span class="sourceLineNo">246</span> */<a name="line.246"></a> -<span class="sourceLineNo">247</span> private static final Pattern pattern = Pattern<a name="line.247"></a> -<span class="sourceLineNo">248</span> .compile(".*\\.\\d*(" + META_WAL_PROVIDER_ID + ")*");<a name="line.248"></a> -<span class="sourceLineNo">249</span><a name="line.249"></a> -<span class="sourceLineNo">250</span> /**<a name="line.250"></a> -<span class="sourceLineNo">251</span> * A WAL file name is of the format: &lt;wal-name&gt;{@link #WAL_FILE_NAME_DELIMITER}<a name="line.251"></a> -<span class="sourceLineNo">252</span> * &lt;file-creation-timestamp&gt;[.meta]. provider-name is usually made up of a server-name and a<a name="line.252"></a> -<span class="sourceLineNo">253</span> * provider-id<a name="line.253"></a> -<span class="sourceLineNo">254</span> * @param filename name of the file to validate<a name="line.254"></a> -<span class="sourceLineNo">255</span> * @return <tt>true</tt> if the filename matches an WAL, <tt>false</tt> otherwise<a name="line.255"></a> -<span class="sourceLineNo">256</span> */<a name="line.256"></a> -<span class="sourceLineNo">257</span> public static boolean validateWALFilename(String filename) {<a name="line.257"></a> -<span class="sourceLineNo">258</span> return pattern.matcher(filename).matches();<a name="line.258"></a> -<span class="sourceLineNo">259</span> }<a name="line.259"></a> -<span class="sourceLineNo">260</span><a name="line.260"></a> -<span class="sourceLineNo">261</span> /**<a name="line.261"></a> -<span class="sourceLineNo">262</span> * Construct the directory name for all WALs on a given server. Dir names currently look like<a name="line.262"></a> -<span class="sourceLineNo">263</span> * this for WALs: <code>hbase//WALs/kalashnikov.att.net,61634,1486865297088</code>.<a name="line.263"></a> -<span class="sourceLineNo">264</span> * @param serverName Server name formatted as described in {@link ServerName}<a name="line.264"></a> -<span class="sourceLineNo">265</span> * @return the relative WAL directory name, e.g. <code>.logs/1.example.org,60030,12345</code> if<a name="line.265"></a> -<span class="sourceLineNo">266</span> * <code>serverName</code> passed is <code>1.example.org,60030,12345</code><a name="line.266"></a> -<span class="sourceLineNo">267</span> */<a name="line.267"></a> -<span class="sourceLineNo">268</span> public static String getWALDirectoryName(final String serverName) {<a name="line.268"></a> -<span class="sourceLineNo">269</span> StringBuilder dirName = new StringBuilder(HConstants.HREGION_LOGDIR_NAME);<a name="line.269"></a> -<span class="sourceLineNo">270</span> dirName.append("/");<a name="line.270"></a> -<span class="sourceLineNo">271</span> dirName.append(serverName);<a name="line.271"></a> -<span class="sourceLineNo">272</span> return dirName.toString();<a name="line.272"></a> -<span class="sourceLineNo">273</span> }<a name="line.273"></a> -<span class="sourceLineNo">274</span><a name="line.274"></a> -<span class="sourceLineNo">275</span> /**<a name="line.275"></a> -<span class="sourceLineNo">276</span> * Pulls a ServerName out of a Path generated according to our layout rules. In the below layouts,<a name="line.276"></a> -<span class="sourceLineNo">277</span> * this method ignores the format of the logfile component. Current format: [base directory for<a name="line.277"></a> -<span class="sourceLineNo">278</span> * hbase]/hbase/.logs/ServerName/logfile or [base directory for<a name="line.278"></a> -<span class="sourceLineNo">279</span> * hbase]/hbase/.logs/ServerName-splitting/logfile Expected to work for individual log files and<a name="line.279"></a> -<span class="sourceLineNo">280</span> * server-specific directories.<a name="line.280"></a> -<span class="sourceLineNo">281</span> * @return null if it's not a log file. Returns the ServerName of the region server that created<a name="line.281"></a> -<span class="sourceLineNo">282</span> * this log file otherwise.<a name="line.282"></a> -<span class="sourceLineNo">283</span> */<a name="line.283"></a> -<span class="sourceLineNo">284</span> public static ServerName getServerNameFromWALDirectoryName(Configuration conf, String path)<a name="line.284"></a> -<span class="sourceLineNo">285</span> throws IOException {<a name="line.285"></a> -<span class="sourceLineNo">286</span> if (path == null || path.length() <= HConstants.HREGION_LOGDIR_NAME.length()) {<a name="line.286"></a> -<span class="sourceLineNo">287</span> return null;<a name="line.287"></a> -<span class="sourceLineNo">288</span> }<a name="line.288"></a> -<span class="sourceLineNo">289</span><a name="line.289"></a> -<span class="sourceLineNo">290</span> if (conf == null) {<a name="line.290"></a> -<span class="sourceLineNo">291</span> throw new IllegalArgumentException("parameter conf must be set");<a name="line.291"></a> -<span class="sourceLineNo">292</span> }<a name="line.292"></a> -<span class="sourceLineNo">293</span><a name="line.293"></a> -<span class="sourceLineNo">294</span> final String rootDir = conf.get(HConstants.HBASE_DIR);<a name="line.294"></a> -<span class="sourceLineNo">295</span> if (rootDir == null || rootDir.isEmpty()) {<a name="line.295"></a> -<span class="sourceLineNo">296</span> throw new IllegalArgumentException(HConstants.HBASE_DIR + " key not found in conf.");<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> final StringBuilder startPathSB = new StringBuilder(rootDir);<a name="line.299"></a> -<span class="sourceLineNo">300</span> if (!rootDir.endsWith("/")) {<a name="line.300"></a> -<span class="sourceLineNo">301</span> startPathSB.append('/');<a name="line.301"></a> -<span class="sourceLineNo">302</span> }<a name="line.302"></a> -<span class="sourceLineNo">303</span> startPathSB.append(HConstants.HREGION_LOGDIR_NAME);<a name="line.303"></a> -<span class="sourceLineNo">304</span> if (!HConstants.HREGION_LOGDIR_NAME.endsWith("/")) {<a name="line.304"></a> -<span class="sourceLineNo">305</span> startPathSB.append('/');<a name="line.305"></a> -<span class="sourceLineNo">306</span> }<a name="line.306"></a> -<span class="sourceLineNo">307</span> final String startPath = startPathSB.toString();<a name="line.307"></a> -<span class="sourceLineNo">308</span><a name="line.308"></a> -<span class="sourceLineNo">309</span> String fullPath;<a name="line.309"></a> -<span class="sourceLineNo">310</span> try {<a name="line.310"></a> -<span class="sourceLineNo">311</span> fullPath = FileSystem.get(conf).makeQualified(new Path(path)).toString();<a name="line.311"></a> -<span class="sourceLineNo">312</span> } catch (IllegalArgumentException e) {<a name="line.312"></a> -<span class="sourceLineNo">313</span> LOG.info("Call to makeQualified failed on " + path + " " + e.getMessage());<a name="line.313"></a> -<span class="sourceLineNo">314</span> return 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> if (!fullPath.startsWith(startPath)) {<a name="line.317"></a> -<span class="sourceLineNo">318</span> return null;<a name="line.318"></a> -<span class="sourceLineNo">319</span> }<a name="line.319"></a> -<span class="sourceLineNo">320</span><a name="line.320"></a> -<span class="sourceLineNo">321</span> final String serverNameAndFile = fullPath.substring(startPath.length());<a name="line.321"></a> -<span class="sourceLineNo">322</span><a name="line.322"></a> -<span class="sourceLineNo">323</span> if (serverNameAndFile.indexOf('/') < "a,0,0".length()) {<a name="line.323"></a> -<span class="sourceLineNo">324</span> // Either it's a file (not a directory) or it's not a ServerName format<a name="line.324"></a> -<span class="sourceLineNo">325</span> return null;<a name="line.325"></a> +<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.shaded.com.google.common.annotations.VisibleForTesting;<a name="line.43"></a> +<span class="sourceLineNo">044</span><a name="line.44"></a> +<span class="sourceLineNo">045</span>/**<a name="line.45"></a> +<span class="sourceLineNo">046</span> * Base class of a WAL Provider that returns a single thread safe WAL that writes to Hadoop FS. By<a name="line.46"></a> +<span class="sourceLineNo">047</span> * default, this implementation picks a directory in Hadoop FS based on a combination of<a name="line.47"></a> +<span class="sourceLineNo">048</span> * <ul><a name="line.48"></a> +<span class="sourceLineNo">049</span> * <li>the HBase root directory<a name="line.49"></a> +<span class="sourceLineNo">050</span> * <li>HConstants.HREGION_LOGDIR_NAME<a name="line.50"></a> +<span class="sourceLineNo">051</span> * <li>the given factory's factoryId (usually identifying the regionserver by host:port)<a name="line.51"></a> +<span class="sourceLineNo">052</span> * </ul><a name="line.52"></a> +<span class="sourceLineNo">053</span> * It also uses the providerId to differentiate among files.<a name="line.53"></a> +<span class="sourceLineNo">054</span> */<a name="line.54"></a> +<span class="sourceLineNo">055</span>@InterfaceAudience.Private<a name="line.55"></a> +<span class="sourceLineNo">056</span>@InterfaceStability.Evolving<a name="line.56"></a> +<span class="sourceLineNo">057</span>public abstract class AbstractFSWALProvider<T extends AbstractFSWAL<?>> implements WALProvider {<a name="line.57"></a> +<span class="sourceLineNo">058</span><a name="line.58"></a> +<span class="sourceLineNo">059</span> private static final Log LOG = LogFactory.getLog(AbstractFSWALProvider.class);<a name="line.59"></a> +<span class="sourceLineNo">060</span><a name="line.60"></a> +<span class="sourceLineNo">061</span> /** Separate old log into different dir by regionserver name **/<a name="line.61"></a> +<span class="sourceLineNo">062</span> public static final String SEPARATE_OLDLOGDIR = "hbase.separate.oldlogdir.by.regionserver";<a name="line.62"></a> +<span class="sourceLineNo">063</span> public static final boolean DEFAULT_SEPARATE_OLDLOGDIR = false;<a name="line.63"></a> +<span class="sourceLineNo">064</span><a name="line.64"></a> +<span class="sourceLineNo">065</span> // Only public so classes back in regionserver.wal can access<a name="line.65"></a> +<span class="sourceLineNo">066</span> public interface Reader extends WAL.Reader {<a name="line.66"></a> +<span class="sourceLineNo">067</span> /**<a name="line.67"></a> +<span class="sourceLineNo">068</span> * @param fs File system.<a name="line.68"></a> +<span class="sourceLineNo">069</span> * @param path Path.<a name="line.69"></a> +<span class="sourceLineNo">070</span> * @param c Configuration.<a name="line.70"></a> +<span class="sourceLineNo">071</span> * @param s Input stream that may have been pre-opened by the caller; may be null.<a name="line.71"></a> +<span class="sourceLineNo">072</span> */<a name="line.72"></a> +<span class="sourceLineNo">073</span> void init(FileSystem fs, Path path, Configuration c, FSDataInputStream s) throws IOException;<a name="line.73"></a> +<span class="sourceLineNo">074</span> }<a name="line.74"></a> +<span class="sourceLineNo">075</span><a name="line.75"></a> +<span class="sourceLineNo">076</span> protected volatile T wal;<a name="line.76"></a> +<span class="sourceLineNo">077</span> protected WALFactory factory = null;<a name="line.77"></a> +<span class="sourceLineNo">078</span> protected Configuration conf = null;<a name="line.78"></a> +<span class="sourceLineNo">079</span> protected List<WALActionsListener> listeners = null;<a name="line.79"></a> +<span class="sourceLineNo">080</span> protected String providerId = null;<a name="line.80"></a> +<span class="sourceLineNo">081</span> protected AtomicBoolean initialized = new AtomicBoolean(false);<a name="line.81"></a> +<span class="sourceLineNo">082</span> // for default wal provider, logPrefix won't change<a name="line.82"></a> +<span class="sourceLineNo">083</span> protected String logPrefix = null;<a name="line.83"></a> +<span class="sourceLineNo">084</span><a name="line.84"></a> +<span class="sourceLineNo">085</span> /**<a name="line.85"></a> +<span class="sourceLineNo">086</span> * we synchronized on walCreateLock to prevent wal recreation in different threads<a name="line.86"></a> +<span class="sourceLineNo">087</span> */<a name="line.87"></a> +<span class="sourceLineNo">088</span> private final Object walCreateLock = new Object();<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> * @param factory factory that made us, identity used for FS layout. may not be null<a name="line.91"></a> +<span class="sourceLineNo">092</span> * @param conf may not be null<a name="line.92"></a> +<span class="sourceLineNo">093</span> * @param listeners may be null<a name="line.93"></a> +<span class="sourceLineNo">094</span> * @param providerId differentiate between providers from one factory, used for FS layout. may be<a name="line.94"></a> +<span class="sourceLineNo">095</span> * null<a name="line.95"></a> +<span class="sourceLineNo">096</span> */<a name="line.96"></a> +<span class="sourceLineNo">097</span> @Override<a name="line.97"></a> +<span class="sourceLineNo">098</span> public void init(WALFactory factory, Configuration conf, List<WALActionsListener> listeners,<a name="line.98"></a> +<span class="sourceLineNo">099</span> String providerId) throws IOException {<a name="line.99"></a> +<span class="sourceLineNo">100</span> if (!initialized.compareAndSet(false, true)) {<a name="line.100"></a> +<span class="sourceLineNo">101</span> throw new IllegalStateException("WALProvider.init should only be called once.");<a name="line.101"></a> +<span class="sourceLineNo">102</span> }<a name="line.102"></a> +<span class="sourceLineNo">103</span> this.factory = factory;<a name="line.103"></a> +<span class="sourceLineNo">104</span> this.conf = conf;<a name="line.104"></a> +<span class="sourceLineNo">105</span> this.listeners = listeners;<a name="line.105"></a> +<span class="sourceLineNo">106</span> this.providerId = providerId;<a name="line.106"></a> +<span class="sourceLineNo">107</span> // get log prefix<a name="line.107"></a> +<span class="sourceLineNo">108</span> StringBuilder sb = new StringBuilder().append(factory.factoryId);<a name="line.108"></a> +<span class="sourceLineNo">109</span> if (providerId != null) {<a name="line.109"></a> +<span class="sourceLineNo">110</span> if (providerId.startsWith(WAL_FILE_NAME_DELIMITER)) {<a name="line.110"></a> +<span class="sourceLineNo">111</span> sb.append(providerId);<a name="line.111"></a> +<span class="sourceLineNo">112</span> } else {<a name="line.112"></a> +<span class="sourceLineNo">113</span> sb.append(WAL_FILE_NAME_DELIMITER).append(providerId);<a name="line.113"></a> +<span class="sourceLineNo">114</span> }<a name="line.114"></a> +<span class="sourceLineNo">115</span> }<a name="line.115"></a> +<span class="sourceLineNo">116</span> logPrefix = sb.toString();<a name="line.116"></a> +<span class="sourceLineNo">117</span> doInit(conf);<a name="line.117"></a> +<span class="sourceLineNo">118</span> }<a name="line.118"></a> +<span class="sourceLineNo">119</span><a name="line.119"></a> +<span class="sourceLineNo">120</span> @Override<a name="line.120"></a> +<span class="sourceLineNo">121</span> public List<WAL> getWALs() {<a name="line.121"></a> +<span class="sourceLineNo">122</span> if (wal == null) {<a name="line.122"></a> +<span class="sourceLineNo">123</span> return Collections.emptyList();<a name="line.123"></a> +<span class="sourceLineNo">124</span> }<a name="line.124"></a> +<span class="sourceLineNo">125</span> List<WAL> wals = new ArrayList<>(1);<a name="line.125"></a> +<span class="sourceLineNo">126</span> wals.add(wal);<a name="line.126"></a> +<span class="sourceLineNo">127</span> return wals;<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> @Override<a name="line.130"></a> +<span class="sourceLineNo">131</span> public T getWAL(byte[] identifier, byte[] namespace) throws IOException {<a name="line.131"></a> +<span class="sourceLineNo">132</span> T walCopy = wal;<a name="line.132"></a> +<span class="sourceLineNo">133</span> if (walCopy == null) {<a name="line.133"></a> +<span class="sourceLineNo">134</span> // only lock when need to create wal, and need to lock since<a name="line.134"></a> +<span class="sourceLineNo">135</span> // creating hlog on fs is time consuming<a name="line.135"></a> +<span class="sourceLineNo">136</span> synchronized (walCreateLock) {<a name="line.136"></a> +<span class="sourceLineNo">137</span> walCopy = wal;<a name="line.137"></a> +<span class="sourceLineNo">138</span> if (walCopy == null) {<a name="line.138"></a> +<span class="sourceLineNo">139</span> walCopy = createWAL();<a name="line.139"></a> +<span class="sourceLineNo">140</span> wal = walCopy;<a name="line.140"></a> +<span class="sourceLineNo">141</span> }<a name="line.141"></a> +<span class="sourceLineNo">142</span> }<a name="line.142"></a> +<span class="sourceLineNo">143</span> }<a name="line.143"></a> +<span class="sourceLineNo">144</span> return walCopy;<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span><a name="line.146"></a> +<span class="sourceLineNo">147</span> protected abstract T createWAL() throws IOException;<a name="line.147"></a> +<span class="sourceLineNo">148</span><a name="line.148"></a> +<span class="sourceLineNo">149</span> protected abstract void doInit(Configuration conf) throws IOException;<a name="line.149"></a> +<span class="sourceLineNo">150</span><a name="line.150"></a> +<span class="sourceLineNo">151</span> @Override<a name="line.151"></a> +<span class="sourceLineNo">152</span> public void shutdown() throws IOException {<a name="line.152"></a> +<span class="sourceLineNo">153</span> T log = this.wal;<a name="line.153"></a> +<span class="sourceLineNo">154</span> if (log != null) {<a name="line.154"></a> +<span class="sourceLineNo">155</span> log.shutdown();<a name="line.155"></a> +<span class="sourceLineNo">156</span> }<a name="line.156"></a> +<span class="sourceLineNo">157</span> }<a name="line.157"></a> +<span class="sourceLineNo">158</span><a name="line.158"></a> +<span class="sourceLineNo">159</span> @Override<a name="line.159"></a> +<span class="sourceLineNo">160</span> public void close() throws IOException {<a name="line.160"></a> +<span class="sourceLineNo">161</span> T log = this.wal;<a name="line.161"></a> +<span class="sourceLineNo">162</span> if (log != null) {<a name="line.162"></a> +<span class="sourceLineNo">163</span> log.close();<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> * iff the given WALFactory is using the DefaultWALProvider for meta and/or non-meta, count the<a name="line.168"></a> +<span class="sourceLineNo">169</span> * number of files (rolled and active). if either of them aren't, count 0 for that provider.<a name="line.169"></a> +<span class="sourceLineNo">170</span> */<a name="line.170"></a> +<span class="sourceLineNo">171</span> @Override<a name="line.171"></a> +<span class="sourceLineNo">172</span> public long getNumLogFiles() {<a name="line.172"></a> +<span class="sourceLineNo">173</span> T log = this.wal;<a name="line.173"></a> +<span class="sourceLineNo">174</span> return log == null ? 0 : log.getNumLogFiles();<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> /**<a name="line.177"></a> +<span class="sourceLineNo">178</span> * iff the given WALFactory is using the DefaultWALProvider for meta and/or non-meta, count the<a name="line.178"></a> +<span class="sourceLineNo">179</span> * size of files (only rolled). if either of them aren't, count 0 for that provider.<a name="line.179"></a> +<span class="sourceLineNo">180</span> */<a name="line.180"></a> +<span class="sourceLineNo">181</span> @Override<a name="line.181"></a> +<span class="sourceLineNo">182</span> public long getLogFileSize() {<a name="line.182"></a> +<span class="sourceLineNo">183</span> T log = this.wal;<a name="line.183"></a> +<span class="sourceLineNo">184</span> return log == null ? 0 : log.getLogFileSize();<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> * returns the number of rolled WAL files.<a name="line.188"></a> +<span class="sourceLineNo">189</span> */<a name="line.189"></a> +<span class="sourceLineNo">190</span> @VisibleForTesting<a name="line.190"></a> +<span class="sourceLineNo">191</span> public static int getNumRolledLogFiles(WAL wal) {<a name="line.191"></a> +<span class="sourceLineNo">192</span> return ((AbstractFSWAL<?>) wal).getNumRolledLogFiles();<a name="line.192"></a> +<span class="sourceLineNo">193</span> }<a name="line.193"></a> +<span class="sourceLineNo">194</span><a name="line.194"></a> +<span class="sourceLineNo">195</span> /**<a name="line.195"></a> +<span class="sourceLineNo">196</span> * returns the size of rolled WAL files.<a name="line.196"></a> +<span class="sourceLineNo">197</span> */<a name="line.197"></a> +<span class="sourceLineNo">198</span> @VisibleForTesting<a name="line.198"></a> +<span class="sourceLineNo">199</span> public static long getLogFileSize(WAL wal) {<a name="line.199"></a> +<span class="sourceLineNo">200</span> return ((AbstractFSWAL<?>) wal).getLogFileSize();<a name="line.200"></a> +<span class="sourceLineNo">201</span> }<a name="line.201"></a> +<span class="sourceLineNo">202</span><a name="line.202"></a> +<span class="sourceLineNo">203</span> /**<a name="line.203"></a> +<span class="sourceLineNo">204</span> * return the current filename from the current wal.<a name="line.204"></a> +<span class="sourceLineNo">205</span> */<a name="line.205"></a> +<span class="sourceLineNo">206</span> @VisibleForTesting<a name="line.206"></a> +<span class="sourceLineNo">207</span> public static Path getCurrentFileName(final WAL wal) {<a name="line.207"></a> +<span class="sourceLineNo">208</span> return ((AbstractFSWAL<?>) wal).getCurrentFileName();<a name="line.208"></a> +<span class="sourceLineNo">209</span> }<a name="line.209"></a> +<span class="sourceLineNo">210</span><a name="line.210"></a> +<span class="sourceLineNo">211</span> /**<a name="line.211"></a> +<span class="sourceLineNo">212</span> * request a log roll, but don't actually do it.<a name="line.212"></a> +<span class="sourceLineNo">213</span> */<a name="line.213"></a> +<span class="sourceLineNo">214</span> @VisibleForTesting<a name="line.214"></a> +<span class="sourceLineNo">215</span> static void requestLogRoll(final WAL wal) {<a name="line.215"></a> +<span class="sourceLineNo">216</span> ((AbstractFSWAL<?>) wal).requestLogRoll();<a name="line.216"></a> +<span class="sourceLineNo">217</span> }<a name="line.217"></a> +<span class="sourceLineNo">218</span><a name="line.218"></a> +<span class="sourceLineNo">219</span> // should be package private; more visible for use in AbstractFSWAL<a name="line.219"></a> +<span class="sourceLineNo">220</span> public static final String WAL_FILE_NAME_DELIMITER = ".";<a name="line.220"></a> +<span class="sourceLineNo">221</span> /** The hbase:meta region's WAL filename extension */<a name="line.221"></a> +<span class="sourceLineNo">222</span> @VisibleForTesting<a name="line.222"></a> +<span class="sourceLineNo">223</span> public static final String META_WAL_PROVIDER_ID = ".meta";<a name="line.223"></a> +<span class="sourceLineNo">224</span> static final String DEFAULT_PROVIDER_ID = "default";<a name="line.224"></a> +<span class="sourceLineNo">225</span><a name="line.225"></a> +<span class="sourceLineNo">226</span> // Implementation details that currently leak in tests or elsewhere follow<a name="line.226"></a> +<span class="sourceLineNo">227</span> /** File Extension used while splitting an WAL into regions (HBASE-2312) */<a name="line.227"></a> +<span class="sourceLineNo">228</span> public static final String SPLITTING_EXT = "-splitting";<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> * It returns the file create timestamp from the file name. For name format see<a name="line.231"></a> +<span class="sourceLineNo">232</span> * {@link #validateWALFilename(String)} public until remaining tests move to o.a.h.h.wal<a name="line.232"></a> +<span class="sourceLineNo">233</span> * @param wal must not be null<a name="line.233"></a> +<span class="sourceLineNo">234</span> * @return the file number that is part of the WAL file name<a name="line.234"></a> +<span class="sourceLineNo">235</span> */<a name="line.235"></a> +<span class="sourceLineNo">236</span> @VisibleForTesting<a name="line.236"></a> +<span class="sourceLineNo">237</span> public static long extractFileNumFromWAL(final WAL wal) {<a name="line.237"></a> +<span class="sourceLineNo">238</span> final Path walName = ((AbstractFSWAL<?>) wal).getCurrentFileName();<a name="line.238"></a> +<span class="sourceLineNo">239</span> if (walName == null) {<a name="line.239"></a> +<span class="sourceLineNo">240</span> throw new IllegalArgumentException("The WAL path couldn't be null");<a name="line.240"></a> +<span class="sourceLineNo">241</span> }<a name="line.241"></a> +<span class="sourceLineNo">242</span> final String[] walPathStrs = walName.toString().split("\\" + WAL_FILE_NAME_DELIMITER);<a name="line.242"></a> +<span class="sourceLineNo">243</span> return Long.parseLong(walPathStrs[walPathStrs.length - (isMetaFile(walName) ? 2 : 1)]);<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> /**<a name="line.246"></a> +<span class="sourceLineNo">247</span> * Pattern used to validate a WAL file name see {@link #validateWALFilename(String)} for<a name="line.247"></a> +<span class="sourceLineNo">248</span> * description.<a name="line.248"></a> +<span class="sourceLineNo">249</span> */<a name="line.249"></a> +<span class="sourceLineNo">250</span> private static final Pattern pattern = Pattern<a name="line.250"></a> +<span class="sourceLineNo">251</span> .compile(".*\\.\\d*(" + META_WAL_PROVIDER_ID + ")*");<a name="line.251"></a> +<span class="sourceLineNo">252</span><a name="line.252"></a> +<span class="sourceLineNo">253</span> /**<a name="line.253"></a> +<span class="sourceLineNo">254</span> * A WAL file name is of the format: &lt;wal-name&gt;{@link #WAL_FILE_NAME_DELIMITER}<a name="line.254"></a> +<span class="sourceLineNo">255</span> * &lt;file-creation-timestamp&gt;[.meta]. provider-name is usually made up of a server-name and a<a name="line.255"></a> +<span class="sourceLineNo">256</span> * provider-id<a name="line.256"></a> +<span class="sourceLineNo">257</span> * @param filename name of the file to validate<a name="line.257"></a> +<span class="sourceLineNo">258</span> * @return <tt>true</tt> if the filename matches an WAL, <tt>false</tt> otherwise<a name="line.258"></a> +<span class="sourceLineNo">259</span> */<a name="line.259"></a> +<span class="sourceLineNo">260</span> public static boolean validateWALFilename(String filename) {<a name="line.260"></a> +<span class="sourceLineNo">261</span> return pattern.matcher(filename).matches();<a name="line.261"></a> +<span class="sourceLineNo">262</span> }<a name="line.262"></a> +<span class="sourceLineNo">263</span><a name="line.263"></a> +<span class="sourceLineNo">264</span> /**<a name="line.264"></a> +<span class="sourceLineNo">265</span> * Construct the directory name for all WALs on a given server. Dir names currently look like<a name="line.265"></a> +<span class="sourceLineNo">266</span> * this for WALs: <code>hbase//WALs/kalashnikov.att.net,61634,1486865297088</code>.<a name="line.266"></a> +<span class="sourceLineNo">267</span> * @param serverName Server name formatted as described in {@link ServerName}<a name="line.267"></a> +<span class="sourceLineNo">268</span> * @return the relative WAL directory name, e.g. <code>.logs/1.example.org,60030,12345</code> if<a name="line.268"></a> +<span class="sourceLineNo">269</span> * <code>serverName</code> passed is <code>1.example.org,60030,12345</code><a name="line.269"></a> +<span class="sourceLineNo">270</span> */<a name="line.270"></a> +<span class="sourceLineNo">271</span> public static String getWALDirectoryName(final String serverName) {<a name="line.271"></a> +<span class="sourceLineNo">272</span> StringBuilder dirName = new StringBuilder(HConstants.HREGION_LOGDIR_NAME);<a name="line.272"></a> +<span class="sourceLineNo">273</span> dirName.append("/");<a name="line.273"></a> +<span class="sourceLineNo">274</span> dirName.append(serverName);<a name="line.274"></a> +<span class="sourceLineNo">275</span> return dirName.toString();<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> /**<a name="line.278"></a> +<span class="sourceLineNo">279</span> * Construct the directory name for all old WALs on a given server. The default old WALs dir<a name="line.279"></a> +<span class="sourceLineNo">280</span> * looks like: <code>hbase/oldWALs</code>. If you config hbase.separate.oldlogdir.by.regionserver<a name="line.280"></a> +<span class="sourceLineNo">281</span> * to true, it looks like <code>hbase//oldWALs/kalashnikov.att.net,61634,1486865297088</code>.<a name="line.281"></a> +<span class="sourceLineNo">282</span> * @param conf<a name="line.282"></a> +<span class="sourceLineNo">283</span> * @param serverName Server name formatted as described in {@link ServerName}<a name="line.283"></a> +<span class="sourceLineNo">284</span> * @return the relative WAL directory name<a name="line.284"></a> +<span class="sourceLineNo">285</span> */<a name="line.285"></a> +<span class="sourceLineNo">286</span> public static String getWALArchiveDirectoryName(Configuration conf, final String serverName) {<a name="line.286"></a> +<span class="sourceLineNo">287</span> StringBuilder dirName = new StringBuilder(HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.287"></a> +<span class="sourceLineNo">288</span> if (conf.getBoolean(SEPARATE_OLDLOGDIR, DEFAULT_SEPARATE_OLDLOGDIR)) {<a name="line.288"></a> +<span class="sourceLineNo">289</span> dirName.append(Path.SEPARATOR);<a name="line.289"></a> +<span class="sourceLineNo">290</span> dirName.append(serverName);<a name="line.290"></a> +<span class="sourceLineNo">291</span> }<a name="line.291"></a> +<span class="sourceLineNo">292</span> return dirName.toString();<a name="line.292"></a> +<span class="sourceLineNo">293</span> }<a name="line.293"></a> +<span class="sourceLineNo">294</span><a name="line.294"></a> +<span class="sourceLineNo">295</span> /**<a name="line.295"></a> +<span class="sourceLineNo">296</span> * Pulls a ServerName out of a Path generated according to our layout rules. In the below layouts,<a name="line.296"></a> +<span class="sourceLineNo">297</span> * this method ignores the format of the logfile component. Current format: [base directory for<a name="line.297"></a> +<span class="sourceLineNo">298</span> * hbase]/hbase/.logs/ServerName/logfile or [base directory for<a name="line.298"></a> +<span class="sourceLineNo">299</span> * hbase]/hbase/.logs/ServerName-splitting/logfile Expected to work for individual log files and<a name="line.299"></a> +<span class="sourceLineNo">300</span> * server-specific directories.<a name="line.300"></a> +<span class="sourceLineNo">301</span> * @return null if it's not a log file. Returns the ServerName of the region server that created<a name="line.301"></a> +<span class="sourceLineNo">302</span> * this log file otherwise.<a name="line.302"></a> +<span class="sourceLineNo">303</span> */<a name="line.303"></a> +<span class="sourceLineNo">304</span> public static ServerName getServerNameFromWALDirectoryName(Configuration conf, String path)<a name="line.304"></a> +<span class="sourceLineNo">305</span> throws IOException {<a name="line.305"></a> +<span class="sourceLineNo">306</span> if (path == null || path.length() <= HConstants.HREGION_LOGDIR_NAME.length()) {<a name="line.306"></a> +<span class="sourceLineNo">307</span> return null;<a name="line.307"></a> +<span class="sourceLineNo">308</span> }<a name="line.308"></a> +<span class="sourceLineNo">309</span><a name="line.309"></a> +<span class="sourceLineNo">310</span> if (conf == null) {<a name="line.310"></a> +<span class="sourceLineNo">311</span> throw new IllegalArgumentException("parameter conf must be set");<a name="line.311"></a> +<span class="sourceLineNo">312</span> }<a name="line.312"></a> +<span class="sourceLineNo">313</span><a name="line.313"></a> +<span class="sourceLineNo">314</span> final String rootDir = conf.get(HConstants.HBASE_DIR);<a name="line.314"></a> +<span class="sourceLineNo">315</span> if (rootDir == null || rootDir.isEmpty()) {<a name="line.315"></a> +<span class="sourceLineNo">316</span> throw new IllegalArgumentException(HConstants.HBASE_DIR + " key not found in conf.");<a name="line.316"></a> +<span class="sourceLineNo">317</span> }<a name="line.317"></a> +<span class="sourceLineNo">318</span><a name="line.318"></a> +<span class="sourceLineNo">319</span> final StringBuilder startPathSB = new StringBuilder(rootDir);<a name="line.319"></a> +<span class="sourceLineNo">320</span> if (!rootDir.endsWith("/")) {<a name="line.320"></a> +<span class="sourceLineNo">321</span> startPathSB.append('/');<a name="line.321"></a> +<span class="sourceLineNo">322</span> }<a name="line.322"></a> +<span class="sourceLineNo">323</span> startPathSB.append(HConstants.HREGION_LOGDIR_NAME);<a name="line.323"></a> +<span class="sourceLineNo">324</span> if (!HConstants.HREGION_LOGDIR_NAME.endsWith("/")) {<a name="line.324"></a> +<span class="sourceLineNo">325</span> startPathSB.append('/');<a name="line.325"></a> <span class="sourceLineNo">326</span> }<a name="line.326"></a> -<span class="sourceLineNo">327</span><a name="line.327"></a> -<span class="sourceLineNo">328</span> Path p = new Path(path);<a name="line.328"></a> -<span class="sourceLineNo">329</span> return getServerNameFromWALDirectoryName(p);<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> /**<a name="line.332"></a> -<span class="sourceLineNo">333</span> * This function returns region server name from a log file name which is in one of the following<a name="line.333"></a> -<span class="sourceLineNo">334</span> * formats:<a name="line.334"></a> -<span class="sourceLineNo">335</span> * <ul><a name="line.335"></a> -<span class="sourceLineNo">336</span> * <li>hdfs://&lt;name node&gt;/hbase/.logs/&lt;server name&gt;-splitting/...</li><a name="line.336"></a> -<span class="sourceLineNo">337</span> * <li>hdfs://&lt;name node&gt;/hbase/.logs/&lt;server name&gt;/...</li><a name="line.337"></a> -<span class="sourceLineNo">338</span> * </ul><a name="line.338"></a> -<span class="sourceLineNo">339</span> * @return null if the passed in logFile isn't a valid WAL file path<a name="line.339"></a> -<span class="sourceLineNo">340</span> */<a name="line.340"></a> -<span class="sourceLineNo">341</span> public static ServerName getServerNameFromWALDirectoryName(Path logFile) {<a name="line.341"></a> -<span class="sourceLineNo">342</span> String logDirName = logFile.getParent().getName();<a name="line.342"></a> -<span class="sourceLineNo">343</span> // We were passed the directory and not a file in it.<a name="line.343"></a> -<span class="sourceLineNo">344</span> if (logDirName.equals(HConstants.HREGION_LOGDIR_NAME)) {<a name="line.344"></a> -<span class="sourceLineNo">345</span> logDirName = logFile.getName();<a name="line.345"></a> +<span class="sourceLineNo">327</span> final String startPath = startPathSB.toString();<a name="line.327"></a> +<span class="sourceLineNo">328</span><a name="line.328"></a> +<span class="sourceLineNo">329</span> String fullPath;<a name="line.329"></a> +<span class="sourceLineNo">330</span> try {<a name="line.330"></a> +<span class="sourceLineNo">331</span> fullPath = FileSystem.get(conf).makeQualified(new Path(path)).toString();<a name="line.331"></a> +<span class="sourceLineNo">332</span> } catch (IllegalArgumentException e) {<a name="line.332"></a> +<span class="sourceLineNo">333</span> LOG.info("Call to makeQualified failed on " + path + " " + e.getMessage());<a name="line.333"></a> +<span class="sourceLineNo">334</span> return null;<a name="line.334"></a> +<span class="sourceLineNo">335</span> }<a name="line.335"></a> +<span class="sourceLineNo">336</span><a name="line.336"></a> +<span class="sourceLineNo">337</span> if (!fullPath.startsWith(startPath)) {<a name="line.337"></a> +<span class="sourceLineNo">338</span> return null;<a name="line.338"></a> +<span class="sourceLineNo">339</span> }<a name="line.339"></a> +<span class="sourceLineNo">340</span><a name="line.340"></a> +<span class="sourceLineNo">341</span> final String serverNameAndFile = fullPath.substring(startPath.length());<a name="line.341"></a> +<span class="sourceLineNo">342</span><a name="line.342"></a> +<span class="sourceLineNo">343</span> if (serverNameAndFile.indexOf('/') < "a,0,0".length()) {<a name="line.343"></a> +<span class="sourceLineNo">344</span> // Either it's a file (not a directory) or it's not a ServerName format<a name="line.344"></a> +<span class="sourceLineNo">345</span> return null;<a name="line.345"></a> <span class="sourceLineNo">346</span> }<a name="line.346"></a> -<span class="sourceLineNo">347</span> ServerName serverName = null;<a name="line.347"></a> -<span class="sourceLineNo">348</span> if (logDirName.endsWith(SPLITTING_EXT)) {<a name="line.348"></a> -<span class="sourceLineNo">349</span> logDirName = logDirName.substring(0, logDirName.length() - SPLITTING_EXT.length());<a name="line.349"></a> -<span class="sourceLineNo">350</span> }<a name="line.350"></a> -<span class="sourceLineNo">351</span> try {<a name="line.351"></a> -<span class="sourceLineNo">352</span> serverName = ServerName.parseServerName(logDirName);<a name="line.352"></a> -<span class="sourceLineNo">353</span> } catch (IllegalArgumentException|IllegalStateException ex) {<a name="line.353"></a> -<span class="sourceLineNo">354</span> serverName = null;<a name="line.354"></a> -<span class="sourceLineNo">355</span> LOG.warn("Cannot parse a server name from path=" + logFile + "; " + ex.getMessage());<a name="line.355"></a> -<span class="sourceLineNo">356</span> }<a name="line.356"></a> -<span class="sourceLineNo">357</span> if (serverName != null && serverName.getStartcode() < 0) {<a name="line.357"></a> -<span class="sourceLineNo">358</span> LOG.warn("Invalid log file path=" + logFile);<a name="line.358"></a> -<span class="sourceLineNo">359</span> serverName = null;<a name="line.359"></a> -<span class="sourceLineNo">360</span> }<a name="line.360"></a> -<span class="sourceLineNo">361</span> return serverName;<a name="line.361"></a> -<span class="sourceLineNo">362</span> }<a name="line.362"></a> -<span class="sourceLineNo">363</span><a name="line.363"></a> -<span class="sourceLineNo">364</span> public static boolean isMetaFile(Path p) {<a name="line.364"></a> -<span class="sourceLineNo">365</span> return isMetaFile(p.getName());<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> public static boolean isMetaFile(String p) {<a name="line.368"></a> -<span class="sourceLineNo">369</span> if (p != null && p.endsWith(META_WAL_PROVIDER_ID)) {<a name="line.369"></a> -<span class="sourceLineNo">370</span> return true;<a name="line.370"></a> -<span class="sourceLineNo">371</span> }<a name="line.371"></a> -<span class="sourceLineNo">372</span> return false;<a name="line.372"></a> -<span class="sourceLineNo">373</span> }<a name="line.373"></a> -<span class="sourceLineNo">374</span><a name="line.374"></a> -<span class="sourceLineNo">375</span> public static boolean isArchivedLogFile(Path p) {<a name="line.375"></a> -<span class="sourceLineNo">376</span> String oldLog = Path.SEPARATOR + HConstants.HREGION_OLDLOGDIR_NAME + Path.SEPARATOR;<a name="line.376"></a> -<span class="sourceLineNo">377</span> return p.toString().contains(oldLog);<a name="line.377"></a> -<span class="sourceLineNo">378</span> }<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> * Get the archived WAL file path<a name="line.381"></a> -<span class="sourceLineNo">382</span> * @param path - active WAL file path<a name="line.382"></a> -<span class="sourceLineNo">383</span> * @param conf - configuration<a name="line.383"></a> -<span class="sourceLineNo">384</span> * @return archived path if exists, path - otherwise<a name="line.384"></a> -<span class="sourceLineNo">385</span> * @throws IOException exception<a name="line.385"></a> -<span class="sourceLineNo">386</span> */<a name="line.386"></a> -<span class="sourceLineNo">387</span> public static Path getArchivedLogPath(Path path, Configuration conf) throws IOException {<a name="line.387"></a> -<span class="sourceLineNo">388</span> Path rootDir = FSUtils.getRootDir(conf);<a name="line.388"></a> -<span 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name="line.398"></a> -<span class="sourceLineNo">399</span> }<a name="line.399"></a> -<span class="sourceLineNo">400</span> }<a name="line.400"></a> -<span class="sourceLineNo">401</span><a name="line.401"></a> -<span class="sourceLineNo">402</span> /**<a name="line.402"></a> -<span class="sourceLineNo">403</span> * Opens WAL reader with retries and<a name="line.403"></a> -<span class="sourceLineNo">404</span> * additional exception handling<a name="line.404"></a> -<span class="sourceLineNo">405</span> * @param path path to WAL file<a name="line.405"></a> -<span class="sourceLineNo">406</span> * @param conf configuration<a name="line.406"></a> -<span class="sourceLineNo">407</span> * @return WAL Reader instance<a name="line.407"></a> -<span class="sourceLineNo">408</span> * @throws IOException<a name="line.408"></a> -<span class="sourceLineNo">409</span> */<a name="line.409"></a> -<span class="sourceLineNo">410</span> public static org.apache.hadoop.hbase.wal.WAL.Reader<a name="line.410"></a> -<span class="sourceLineNo">411</span> openReader(Path path, Configuration conf)<a name="line.411"></a> -<span class="sourceLineNo">412</span> throws IOException<a name="line.412"></a> -<span class="sourceLineNo">413</span><a name="line.413"></a> -<span class="sourceLineNo">414</span> {<a name="line.414"></a> -<span class="sourceLineNo">415</span> long retryInterval = 2000; // 2 sec<a name="line.415"></a> -<span class="sourceLineNo">416</span> int maxAttempts = 30;<a name="line.416"></a> -<span class="sourceLineNo">417</span> int attempt = 0;<a name="line.417"></a> -<span class="sourceLineNo">418</span> Exception ee = null;<a name="line.418"></a> -<span class="sourceLineNo">419</span> org.apache.hadoop.hbase.wal.WAL.Reader reader = null;<a name="line.419"></a> -<span class="sourceLineNo">420</span> while (reader == null && attempt++ < maxAttempts) {<a name="line.420"></a> -<span class="sourceLineNo">421</span> try {<a name="line.421"></a> -<span class="sourceLineNo">422</span> // Detect if this is a new file, if so get a new reader else<a name="line.422"></a> -<span class="sourceLineNo">423</span> // reset the current reader so that we see the new data<a name="line.423"></a> -<span class="sourceLineNo">424</span> reader = WALFactory.createReader(path.getFileSystem(conf), path, conf);<a name="line.424"></a> -<span class="sourceLineNo">425</span> return reader;<a name="line.425"></a> -<span class="sourceLineNo">426</span> } catch (FileNotFoundException fnfe) {<a name="line.426"></a> -<span class="sourceLineNo">427</span> // If the log was archived, continue reading from there<a name="line.427"></a> -<span class="sourceLineNo">428</span> Path archivedLog = AbstractFSWALProvider.getArchivedLogPath(path, conf);<a name="line.428"></a> -<span class="sourceLineNo">429</span> if (path != archivedLog) {<a name="line.429"></a> -<span class="sourceLineNo">430</span> return openReader(archivedLog, conf);<a name="line.430"></a> -<span class="sourceLineNo">431</span> } else {<a name="line.431"></a> -<span class="sourceLineNo">432</span> throw fnfe;<a name="line.432"></a> -<span class="sourceLineNo">433</span> }<a name="line.433"></a> -<span class="sourceLineNo">434</span> } catch (LeaseNotRecoveredException lnre) {<a name="line.434"></a> -<span class="sourceLineNo">435</span> // HBASE-15019 the WAL was not closed due to some hiccup.<a name="line.435"></a> -<span class="sourceLineNo">436</span> LOG.warn("Try to recover the WAL lease " + path, lnre);<a name="line.436"></a> -<span class="sourceLineNo">437</span> recoverLease(conf, path);<a name="line.437"></a> -<span class="sourceLineNo">438</span> reader = null;<a name="line.438"></a> -<span class="sourceLineNo">439</span> ee = lnre;<a name="line.439"></a> -<span class="sourceLineNo">440</span> } catch (NullPointerException npe) {<a name="line.440"></a> -<span class="sourceLineNo">441</span> // Workaround for race condition in HDFS-4380<a name="line.441"></a> -<span class="sourceLineNo">442</span> // which throws a NPE if we open a file before any data node has the most recent block<a name="line.442"></a> -<span class="sourceLineNo">443</span> // Just sleep and retry. Will require re-reading compressed WALs for compressionContext.<a name="line.443"></a> -<span class="sourceLineNo">444</span> LOG.warn("Got NPE opening reader, will retry.");<a name="line.444"></a> -<span class="sourceLineNo">445</span> reader = null;<a name="line.445"></a> -<span class="sourceLineNo">446</span> ee = npe;<a name="line.446"></a> -<span class="sourceLineNo">447</span> }<a name="line.447"></a> -<span class="sourceLineNo">448</span> if (reader == null) {<a name="line.448"></a> -<span class="sourceLineNo">449</span> // sleep before next attempt<a name="line.449"></a> -<span class="sourceLineNo">450</span> try {<a name="line.450"></a> -<span class="sourceLineNo">451</span> Thread.sleep(retryInterval);<a name="line.451"></a> -<span class="sourceLineNo">452</span> } catch (InterruptedException e) {<a name="line.452"></a> -<span class="sourceLineNo">453</span> }<a name="line.453"></a> -<span class="sourceLineNo">454</span> }<a name="line.454"></a> -<span class="sourceLineNo">455</span> }<a name="line.455"></a> -<span class="sourceLineNo">456</span> throw new IOException("Could not open reader", ee);<a name="line.456"></a> -<span class="sourceLineNo">457</span> }<a name="line.457"></a> -<span class="sourceLineNo">458</span><a name="line.458"></a> -<span class="sourceLineNo">459</span> // For HBASE-15019<a name="line.459"></a> -<span class="sourceLineNo">460</span> private static void recoverLease(final Configuration conf, final Path path) {<a name="line.460"></a> -<span class="sourceLineNo">461</span> try {<a name="line.461"></a> -<span class="sourceLineNo">462</span> final FileSystem dfs = FSUtils.getCurrentFileSystem(conf);<a name="line.462"></a> -<span class="sourceLineNo">463</span> FSUtils fsUtils = FSUtils.getInstance(dfs, conf);<a name="line.463"></a> -<span class="sourceLineNo">464</span> fsUtils.recoverFileLease(dfs, path, conf, new CancelableProgressable() {<a name="line.464"></a> -<span class="sourceLineNo">465</span> @Override<a name="line.465"></a> -<span class="sourceLineNo">466</span> public boolean progress() {<a name="line.466"></a> -<span class="sourceLineNo">467</span> LOG.debug("Still trying to recover WAL lease: " + path);<a name="line.467"></a> -<span class="sourceLineNo">468</span> return true;<a name="line.468"></a> -<span class="sourceLineNo">469</span> }<a name="line.469"></a> -<span class="sourceLineNo">470</span> });<a name="line.470"></a> -<span class="sourceLineNo">471</span> } catch (IOException e) {<a name="line.471"></a> -<span class="sourceLineNo">472</span> LOG.warn("unable to recover lease for WAL: " + path, e);<a name="line.472"></a> -<span class="sourceLineNo">473</span> }<a name="line.473"></a> -<span class="sourceLineNo">474</span> }<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> /**<a name="line.477"></a> -<span class="sourceLineNo">478</span> * Get prefix of the log from its name, assuming WAL name in format of<a name="line.478"></a> -<span class="sourceLineNo">479</span> * log_prefix.filenumber.log_suffix<a name="line.479"></a> -<span class="sourceLineNo">480</span> * @param name Name of the WAL to parse<a name="line.480"></a> -<span class="sourceLineNo">481</span> * @return prefix of the log<a name="line.481"></a> -<span class="sourceLineNo">482</span> * @see AbstractFSWAL#getCurrentFileName()<a name="line.482"></a> -<span class="sourceLineNo">483</span> */<a name="line.483"></a> -<span class="sourceLineNo">484</span> public static String getWALPrefixFromWALName(String name) {<a name="line.484"></a> -<span class="sourceLineNo">485</span> int endIndex = name.replaceAll(META_WAL_PROVIDER_ID, "").lastIndexOf(".");<a name="line.485"></a> -<span class="sourceLineNo">486</span> return name.substring(0, endIndex);<a name="line.486"></a> -<span class="sourceLineNo">487</span> }<a name="line.487"></a> -<span class="sourceLineNo">488</span>}<a name="line.488"></a> +<span class="sourceLineNo">347</span><a name="line.347"></a> +<span class="sourceLineNo">348</span> Path p = new Path(path);<a name="line.348"></a> +<span class="sourceLineNo">349</span> return getServerNameFromWALDirectoryName(p);<a name="line.349"></a> +<span class="sourceLineNo">350</span> }<a name="line.350"></a> +<span class="sourceLineNo">351</span><a name="line.351"></a> +<span class="sourceLineNo">352</span> /**<a name="line.352"></a> +<span class="sourceLineNo">353</span> * This function returns region server name from a log file name which is in one of the following<a name="line.353"></a> +<span class="sourceLineNo">354</span> * formats:<a name="line.354"></a> +<span class="sourceLineNo">355</span> * <ul><a name="line.355"></a> +<span class="sourceLineNo">356</span> * <li>hdfs://&lt;name node&gt;/hbase/.logs/&lt;server name&gt;-splitting/...</li><a name="line.356"></a> +<span class="sourceLineNo">357</span> * <li>hdfs://&lt;name node&gt;/hbase/.logs/&lt;server name&gt;/...</li><a name="line.357"></a> +<span class="sourceLineNo">358</span> * </ul><a name="line.358"></a> +<span class="sourceLineNo">359</span> * @return null if the passed in logFile isn't a valid WAL file path<a name="line.359"></a> +<span class="sourceLineNo">360</span> */<a name="line.360"></a> +<span class="sourceLineNo">361</span> public static ServerName getServerNameFromWALDirectoryName(Path logFile) {<a name="line.361"></a> +<span class="sourceLineNo">362</span> String logDirName = logFile.getParent().getName();<a name="line.362"></a> +<span class="sourceLineNo">363</span> // We were passed the directory and not a file in it.<a name="line.363"></a> +<span class="sourceLineNo">364</span> if (logDirName.equals(HConstants.HREGION_LOGDIR_NAME)) {<a name="line.364"></a> +<span class="sourceLineNo">365</span> logDirName = logFile.getName();<a name="line.365"></a> +<span class="sourceLineNo">366</span> }<a name="line.366"></a> +<span class="sourceLineNo">367</span> ServerName serverName = null;<a name="line.367"></a> +<span class="sourceLineNo">368</span> if (logDirName.endsWith(SPLITTING_EXT)) {<a name="line.368"></a> +<span class="sourceLineNo">369</span> logDirName = logDirName.substring(0, logDirName.length() - SPLITTING_EXT.length());<a name="line.369"></a> +<span class="sourceLineNo">370</span> }<a name="line.370"></a> +<span class="sourceLineNo">371</span> try {<a name="line.371"></a> +<span class="sourceLineNo">372</span> serverName = ServerName.parseServerName(logDirName);<a name="line.372"></a> +<span class="sourceLineNo">373</span> } catch (IllegalArgumentException|IllegalStateException ex) {<a name="line.373"></a> +<span class="sourceLineNo">374</span> serverName = null;<a name="line.374"></a> +<span class="sourceLineNo">375</span> LOG.warn("Cannot parse a server name from path=" + logFile + "; " + ex.getMessage());<a name="line.375"></a> +<span class="sourceLineNo">376</span> }<a name="line.376"></a> +<span class="sourceLineNo">377</span> if (serverName != null && serverName.getStartcode() < 0) {<a name="line.377"></a> +<span class="sourceLineNo">378</span> LOG.warn("Invalid log file path=" + logFile);<a name="line.378"></a> +<span class="sourceLineNo">379</span> serverName = null;<a name="line.379"></a> +<span class="sourceLineNo">380</span> }<a name="line.380"></a> +<span class="sourceLineNo">381</span> return serverName;<a name="line.381"></a> +<span class="sourceLineNo">382</span> }<a name="line.382"></a> +<span class="sourceLineNo">383</span><a name="line.383"></a> +<span class="sourceLineNo">384</span> public static boolean isMetaFile(Path p) {<a name="line.384"></a> +<span class="sourceLineNo">385</span> return isMetaFile(p.getName());<a name="line.385"></a> +<span class="sourceLineNo">386</span> }<a name="line.386"></a> +<span class="sourceLineNo">387</span><a name="line.387"></a> +<span class="sourceLineNo">388</span> public static boolean isMetaFile(String p) {<a name="line.388"></a> +<span class="sourceLineNo">389</span> if (p != null && p.endsWith(META_WAL_PROVIDER_ID)) {<a name="line.389"></a> +<span class="sourceLineNo">390</span> return true;<a name="line.390"></a> +<span class="sourceLineNo">391</span> }<a name="line.391"></a> +<span class="sourceLineNo">392</span> return false;<a name="line.392"></a> +<span class="sourceLineNo">393</span> }<a name="line.393"></a> +<span class="sourceLineNo">394</span><a name="line.394"></a> +<span class="sourceLineNo">395</span> public static boolean isArchivedLogFile(Path p) {<a name="line.395"></a> +<span class="sourceLineNo">396</span> String oldLog = Path.SEPARATOR + HConstants.HREGION_OLDLOGDIR_NAME + Path.SEPARATOR;<a name="line.396"></a> +<span class="sourceLineNo">397</span> return p.toString().contains(oldLog);<a name="line.397"></a> +<span class="sourceLineNo">398</span> }<a name="line.398"></a> +<span class="sourceLineNo">399</span><a name="line.399"></a> +<span class="sourceLineNo">400</span> /**<a name="line.400"></a> +<span class="sourceLineNo">401</span> * Get the archived WAL file path<a name="line.401"></a> +<span class="sourceLineNo">402</span> * @param path - active WAL file path<a name="line.402"></a> +<span class="sourceLineNo">403</span> * @param conf - configuration<a name="line.403"></a> +<span class="sourceLineNo">404</span> * @return archived path if exists, path - otherwise<a name="line.404"></a> +<span class="sourceLineNo">405</span> * @throws IOException exception<a name="line.405"></a> +<span class="sourceLineNo">406</span> */<a name="line.406"></a> +<span class="sourceLineNo">407</span> public static Path getArchivedLogPath(Path path, Configuration conf) throws IOException {<a name="line.407"></a> +<span class="sourceLineNo">408</span> Path rootDir = FSUtils.getRootDir(conf);<a name="line.408"></a> +<span class="sourceLineNo">409</span> Path oldLogDir = new Path(rootDir, HConstants.HREGION_OLDLOGDIR_NAME);<a name="line.409"></a> +<span class="sourceLineNo">410</span> if (conf.getBoolean(SEPARATE_OLDLOGDIR, DEFAULT_SEPARATE_OLDLOGDIR)) {<a name="line.410"></a> +<span class="sourceLineNo">411</span> ServerName serverName = getServerNameFromWALDirectoryName(path);<a name="line.411"></a> +<span class="sourceLineNo">412</span> if (serverName == null) {<a name="line.412"></a> +<span class="sourceLineNo">413</span> LOG.error("Couldn't locate log: " + path);<a name="line.413"></a> +<span class="sourceLineNo">414</span> return path;<a name="line.414"></a> +<span class="sourceLineNo">415</span> }<a name="line.415"></a> +<span class="sourceLineNo">416</span> oldLogDir = new Path(oldLogDir, serverName.getServerName());<a name="line.416"></a> +<span class="sourceLineNo">417</span> }<a name="line.417"></a> +<span class="sourceLineNo">418</span> Path archivedLogLocation = new Path(oldLogDir, path.getName());<a name="line.418"></a> +<span class="sourceLineNo">419</span> final FileSystem fs = FSUtils.getCurrentFileSystem(conf);<a name="line.419"></a> +<span class="sourceLineNo">420</span><a name="line.420"></a> +<span class="sourceLineNo">421</span> if (fs.exists(archivedLogLocation)) {<a name="line.421"></a> +<span class="sourceLineNo">422</span> LOG.info("Log " + path + " was moved to " + archivedLogLocation);<a name="line.422"></a> +<span class="sourceLineNo">423</span> return archivedLogLocation;<a name="line.423"></a> +<span class="sourceLineNo">424</span> } else {<a name="line.424"></a> +<span class="sourceLineNo">425</span> LOG.error("Couldn't locate log: " + path);<a name="line.425"></a> +<span class="sourceLineNo">426</span> return 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> /**<a name="line.430"></a> +<span class="sourceLineNo">431</span> * Opens WAL reader with retries and<a name="line.431"></a> +<span class="sourceLineNo">432</span> * additional exception handling<a name="line.432"></a> +<span class="sourceLineNo">433</span> * @param path path to WAL file<a name="line.433"></a> +<span class="sourceLineNo">434</span> * @param conf configuration<a name="line.434"></a> +<span class="sourceLineNo">435</span> * @return WAL Reader instance<a name="line.435"></a> +<span class="sourceLineNo">436</span> * @throws IOException<a name="line.436"></a> +<span class="sourceLineNo">437</span> */<a name="line.437"></a> +<span class="sourceLineNo">438</span> public static org.apache.hadoop.hbase.wal.WAL.Reader<a name="line.438"></a> +<span class="sourceLineNo">439</span> openReader(Path path, Configuration conf)<a name="line.439"></a> +<span class="sourceLineNo">440</span> throws IOException<a name="line.440"></a> +<span class="sourceLineNo">441</span><a name="line.441"></a> +<span class="sourceLineNo">442</span> {<a name="line.442"></a> +<span class="sourceLineNo">443</span> long retryInterval = 2000; // 2 sec<a name="line.443"></a> +<span class="sourceLineNo">444</span> int maxAttempts = 30;<a name="line.444"></a> +<span class="sourceLineNo">445</span> int attempt = 0;<a name="line.445"></a> +<span class="sourceLineNo">446</span> Exception ee = null;<a name="line.446"></a> +<span class="sourceLineNo">447</span> org.apache.hadoop.hbase.wal.WAL.Reader reader = null;<a name="line.447"></a> +<span class="sourceLineNo">448</span> while (reader == null && attempt++ < maxAttempts) {<a name="line.448"></a> +<span class="sourceLineNo">449</span> try {<a name="line.449"></a> +<span class="sourceLineNo">450</span> // Detect if this is a new file, if so get a new reader else<a name="line.450"></a> +<span class="sourceLineNo">451</span> // reset the current reader so that we see the new data<a name="line.451"></a> +<span class="sourceLineNo">452</span> reader = WALFactory.createReader(path.getFileSystem(conf), path, conf);<a name="line.452"></a> +<span class="sourceLineNo">453</span> return reader;<a name="line.453"></a> +<span class="sourceLineNo">454</span> } catch (FileNotFoundException fnfe) {<a name="line.454"></a> +<span class="sourceLineNo">455</span> // If the log was archived, continue reading from there<a name="line.455"></a> +<span class="sourceLineNo">456</span> Path archivedLog = AbstractFSWALProvider.getArchivedLogPath(path, conf);<a name="line.456"></a> +<span class="sourceLineNo">457</span> if (path != archivedLog) {<a name="line.457"></a> +<span class="sourceLineNo">458</span> return openReader(archivedLog, conf);<a name="line.458"></a> +<span class="sourceLineNo">459</span> } else {<a name="line.459"></a> +<span class="sourceLineNo">460</span> throw fnfe;<a name="line.460"></a> +<span class="sourceLineNo">461</span> }<a name="line.461"></a> +<span class="sourceLineNo">462</span> } catch (LeaseNotRecoveredException lnre) {<a name="line.462"></a> +<span class="sourceLineNo">463</span> // HBASE-15019 the WAL was not closed due to some hiccup.<a name="line.463"></a> +<span class="sourceLineNo">464</span> LOG.warn("Try to recover the WAL lease " + path, lnre);<a name="line.464"></a> +<span class="sourceLineNo">465</span> recoverLease(conf, path);<a name="line.465"></a> +<span class="sourceLineNo">466</span> reader = null;<a name="line.466"></a> +<span class="sourceLineNo">467</span> ee = lnre;<a name="line.467"></a> +<span class="sourceLineNo">468</span> } catch (NullPointerException npe) {<a name="line.468"></a> +<span class="sourceLineNo">469</span> // Workaround for race condition in HDFS-4380<a name="line.469"></a> +<span class="sourceLineNo">470</span> // which throws a NPE if we open a file before any data node has the most recent block<a name="line.470"></a> +<span class="sourceLineNo">471</span> // Just sleep and retry. Will require re-reading compressed WALs for compressionContext.<a name="line.471"></a> +<span class="sourceLineNo">472</span> LOG.warn("Got NPE opening reader, will retry.");<a name="line.472"></a> +<span class="sourceLineNo">473</span> reader = null;<a name="line.473"></a> +<span class="sourceLineNo">474</span> ee = npe;<a name="line.474"></a> +<span class="sourceLineNo">475</span> }<a name="line.475"></a> +<span class="sourceLineNo">476</span> if (reader == null) {<a name="line.476"></a> +<span class="sourceLineNo">477</span> // sleep before next attempt<a name="line.477"></a> +<span class="sourceLineNo">478</span> try {<a name="line.478"></a> +<span class="sourceLineNo">479</span> Thread.sleep(retryInterval);<a name="line.479"></a> +<span class="sourceLineNo">480</span> } catch (InterruptedException e) {<a name="line.480"></a> +<span class="sourceLineNo">481</span> }<a name="line.481"></a> +<span class="sourceLineNo">482</span> }<a name="line.482"></a> +<span class="sourceLineNo">483</span> }<a name="line.483"></a> +<span class="sourceLineNo">484</span> throw new IOException("Could not open reader", ee);<a name="line.484"></a> +<span class="sourceLineNo">485</span> }<a name="line.485"></a> +<span class="sourceLineNo">486</span><a name="line.486"></a> +<span class="sourceLineNo">487</span> // For HBASE-15019<a name="line.487"></a> +<span class="sourceLineNo">488</span> private static void recoverLease(final Configuration conf, final Path path) {<a name="line.488"></a> +<span class="sourceLineNo">489</span> try {<a name="line.489"></a> +<span class="sourceLineNo">490</span> final FileSystem dfs = FSUtils.getCurrentFileSystem(conf);<a name="line.490"></a> +<span class="sourceLineNo">491</span> FSUtils fsUtils = FSUtils.getInstance(dfs, conf);<a name="line.491"></a> +<span class="sourceLineNo">492</span> fsUtils.recoverFileLease(dfs, path, conf, new CancelableProgressable() {<a name="line.492"></a> +<span class="sourceLineNo">493</span> @Override<a name="line.493"></a> +<span class="sourceLineNo">494</span> public boolean progress() {<a name="line.494"></a> +<span class="sourceLineNo">495</span> LOG.debug("Still trying to recover WAL lease: " + path);<a name="line.495"></a> +<span class="sourceLineNo">496</span> return true;<a name="line.496"></a> +<span class="sourceLineNo">497</span> }<a name="line.497"></a> +<span class="sourceLineNo">498</span> });<a name="line.498"></a> +<span class="sourceLineNo">499</span> } catch (IOException e) {<a name="line.499"></a> +<span class="sourceLineNo">500</span> LOG.warn("unable to recover lease for WAL: " + path, e);<a name="line.500"></a> +<span class="sourceLineNo">501</span> }<a name="line.501"></a> +<span class="sourceLineNo">502</span> }<a name="line.502"></a> +<span class="sourceLineNo">503</span><a name="line.503"></a> +<span class="sourceLineNo">504</span><a name="line.504"></a> +<span class="sourceLineNo">505</span> /**<a name="line.505"></a> +<span class="sourceLineNo">506</span> * Get prefix of the log from its name, assuming WAL name in format of<a name="line.506"></a> +<span class="sourceLineNo">507</span> * log_prefix.filenumber.log_suffix<a name="line.507"></a> +<span class="sourceLineNo">508</span> * @param name Name of the WAL to parse<a name="line.508"></a> +<span class="sourceLineNo">509</span> * @return prefix of the log<a name="line.509"></a> +<span class="sourceLineNo">510</span> * @see AbstractFSWAL#getCurrentFileName()<a name="line.510"></a> +<span class="sourceLineNo">511</span> */<a name="line.511"></a> +<span class="sourceLineNo">512</span> public static String getWALPrefixFromWALName(String name) {<a name="line.512"></a> +<span class="sourceLineNo">513</span> int endIndex = name.replaceAll(META_
<TRUNCATED>
