http://git-wip-us.apache.org/repos/asf/hbase-site/blob/f3d62514/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALPlayer.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALPlayer.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALPlayer.html index 9501e97..a10ddfe 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALPlayer.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/WALPlayer.html @@ -131,277 +131,279 @@ <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> } catch (InterruptedException e) {<a name="line.125"></a> -<span class="sourceLineNo">126</span> e.printStackTrace();<a name="line.126"></a> -<span class="sourceLineNo">127</span> }<a name="line.127"></a> -<span class="sourceLineNo">128</span> }<a name="line.128"></a> -<span 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@param args The command line parameters.<a name="line.263"></a> -<span class="sourceLineNo">264</span> * @return The newly created job.<a name="line.264"></a> -<span class="sourceLineNo">265</span> * @throws IOException When setting up the job fails.<a name="line.265"></a> -<span class="sourceLineNo">266</span> */<a name="line.266"></a> -<span class="sourceLineNo">267</span> public Job createSubmittableJob(String[] args) throws IOException {<a name="line.267"></a> -<span class="sourceLineNo">268</span> Configuration conf = getConf();<a name="line.268"></a> -<span class="sourceLineNo">269</span> setupTime(conf, WALInputFormat.START_TIME_KEY);<a name="line.269"></a> -<span class="sourceLineNo">270</span> setupTime(conf, WALInputFormat.END_TIME_KEY);<a name="line.270"></a> -<span class="sourceLineNo">271</span> String inputDirs = args[0];<a name="line.271"></a> -<span class="sourceLineNo">272</span> String[] tables = args[1].split(",");<a name="line.272"></a> -<span class="sourceLineNo">273</span> String[] tableMap;<a name="line.273"></a> -<span class="sourceLineNo">274</span> if (args.length > 2) {<a name="line.274"></a> -<span class="sourceLineNo">275</span> tableMap = args[2].split(",");<a name="line.275"></a> -<span class="sourceLineNo">276</span> if (tableMap.length != tables.length) {<a name="line.276"></a> -<span class="sourceLineNo">277</span> throw new IOException("The same number of tables and mapping must be provided.");<a name="line.277"></a> -<span class="sourceLineNo">278</span> }<a name="line.278"></a> -<span class="sourceLineNo">279</span> } else {<a name="line.279"></a> -<span class="sourceLineNo">280</span> // if not mapping is specified map each table to itself<a name="line.280"></a> -<span class="sourceLineNo">281</span> tableMap = tables;<a name="line.281"></a> -<span class="sourceLineNo">282</span> }<a name="line.282"></a> -<span class="sourceLineNo">283</span> conf.setStrings(TABLES_KEY, tables);<a name="line.283"></a> 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name="line.293"></a> -<span class="sourceLineNo">294</span> if (hfileOutPath != null) {<a name="line.294"></a> -<span class="sourceLineNo">295</span> LOG.debug("add incremental job :" + hfileOutPath + " from " + inputDirs);<a name="line.295"></a> -<span class="sourceLineNo">296</span><a name="line.296"></a> -<span class="sourceLineNo">297</span> // the bulk HFile case<a name="line.297"></a> -<span class="sourceLineNo">298</span> List<TableName> tableNames = getTableNameList(tables);<a name="line.298"></a> -<span class="sourceLineNo">299</span><a name="line.299"></a> -<span class="sourceLineNo">300</span> job.setMapperClass(WALKeyValueMapper.class);<a name="line.300"></a> -<span class="sourceLineNo">301</span> job.setReducerClass(CellSortReducer.class);<a name="line.301"></a> -<span class="sourceLineNo">302</span> Path outputDir = new Path(hfileOutPath);<a name="line.302"></a> -<span class="sourceLineNo">303</span> FileOutputFormat.setOutputPath(job, outputDir);<a name="line.303"></a> 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tableInfoList);<a name="line.312"></a> -<span class="sourceLineNo">313</span> }<a name="line.313"></a> -<span class="sourceLineNo">314</span> TableMapReduceUtil.addDependencyJarsForClasses(job.getConfiguration(),<a name="line.314"></a> -<span class="sourceLineNo">315</span> org.apache.hbase.thirdparty.com.google.common.base.Preconditions.class);<a name="line.315"></a> -<span class="sourceLineNo">316</span> } else {<a name="line.316"></a> -<span class="sourceLineNo">317</span> // output to live cluster<a name="line.317"></a> -<span class="sourceLineNo">318</span> job.setMapperClass(WALMapper.class);<a name="line.318"></a> -<span class="sourceLineNo">319</span> job.setOutputFormatClass(MultiTableOutputFormat.class);<a name="line.319"></a> -<span class="sourceLineNo">320</span> TableMapReduceUtil.addDependencyJars(job);<a name="line.320"></a> -<span class="sourceLineNo">321</span> TableMapReduceUtil.initCredentials(job);<a name="line.321"></a> -<span class="sourceLineNo">322</span> // No 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Can be null.<a name="line.345"></a> -<span class="sourceLineNo">346</span> */<a name="line.346"></a> -<span class="sourceLineNo">347</span> private void usage(final String errorMsg) {<a name="line.347"></a> -<span class="sourceLineNo">348</span> if (errorMsg != null && errorMsg.length() > 0) {<a name="line.348"></a> -<span class="sourceLineNo">349</span> System.err.println("ERROR: " + errorMsg);<a name="line.349"></a> -<span class="sourceLineNo">350</span> }<a name="line.350"></a> -<span class="sourceLineNo">351</span> System.err.println("Usage: " + NAME + " [options] <wal inputdir> <tables> [<tableMappings>]");<a name="line.351"></a> -<span class="sourceLineNo">352</span> System.err.println("Replay all WAL files into HBase.");<a name="line.352"></a> -<span class="sourceLineNo">353</span> System.err.println("<tables> is a comma separated list of tables.");<a name="line.353"></a> -<span class="sourceLineNo">354</span> System.err.println("If no tables (\"\") are specified, all tables are imported.");<a name="line.354"></a> -<span class="sourceLineNo">355</span> System.err.println("(Be careful, hbase:meta entries will be imported in this case.)\n");<a name="line.355"></a> -<span class="sourceLineNo">356</span> System.err.println("WAL entries can be mapped to new set of tables via <tableMappings>.");<a name="line.356"></a> -<span class="sourceLineNo">357</span> System.err.println("<tableMappings> is a comma separated list of target tables.");<a name="line.357"></a> -<span class="sourceLineNo">358</span> System.err.println("If specified, each table in <tables> must have a mapping.\n");<a name="line.358"></a> -<span class="sourceLineNo">359</span> System.err.println("By default " + NAME + " will load data directly into HBase.");<a name="line.359"></a> -<span class="sourceLineNo">360</span> System.err.println("To generate HFiles for a bulk data load instead, pass the following option:");<a name="line.360"></a> -<span class="sourceLineNo">361</span> System.err.println(" -D" + BULK_OUTPUT_CONF_KEY + "=/path/for/output");<a name="line.361"></a> -<span class="sourceLineNo">362</span> System.err.println(" (Only one table can be specified, and no mapping is allowed!)");<a name="line.362"></a> -<span class="sourceLineNo">363</span> System.err.println("Time range options:");<a name="line.363"></a> -<span class="sourceLineNo">364</span> System.err.println(" -D" + WALInputFormat.START_TIME_KEY + "=[date|ms]");<a name="line.364"></a> -<span class="sourceLineNo">365</span> System.err.println(" -D" + WALInputFormat.END_TIME_KEY + "=[date|ms]");<a name="line.365"></a> -<span class="sourceLineNo">366</span> System.err.println(" (The start and the end date of timerange. The dates can be expressed");<a name="line.366"></a> -<span class="sourceLineNo">367</span> System.err.println(" in milliseconds since epoch or in yyyy-MM-dd'T'HH:mm:ss.SS format.");<a name="line.367"></a> -<span class="sourceLineNo">368</span> System.err.println(" E.g. 1234567890120 or 2009-02-13T23:32:30.12)");<a name="line.368"></a> -<span class="sourceLineNo">369</span> System.err.println("Other options:");<a name="line.369"></a> -<span class="sourceLineNo">370</span> System.err.println(" -D" + JOB_NAME_CONF_KEY + "=jobName");<a name="line.370"></a> -<span class="sourceLineNo">371</span> System.err.println(" Use the specified mapreduce job name for the wal player");<a name="line.371"></a> -<span class="sourceLineNo">372</span> System.err.println("For performance also consider the following options:\n"<a name="line.372"></a> -<span class="sourceLineNo">373</span> + " -Dmapreduce.map.speculative=false\n"<a name="line.373"></a> -<span class="sourceLineNo">374</span> + " -Dmapreduce.reduce.speculative=false");<a name="line.374"></a> -<span class="sourceLineNo">375</span> }<a name="line.375"></a> -<span class="sourceLineNo">376</span><a name="line.376"></a> -<span class="sourceLineNo">377</span> /**<a name="line.377"></a> -<span class="sourceLineNo">378</span> * Main entry point.<a name="line.378"></a> -<span class="sourceLineNo">379</span> * @param args The command line parameters.<a name="line.379"></a> -<span class="sourceLineNo">380</span> * @throws Exception When running the job fails.<a name="line.380"></a> -<span class="sourceLineNo">381</span> */<a name="line.381"></a> -<span class="sourceLineNo">382</span> public static void main(String[] args) throws Exception {<a name="line.382"></a> -<span class="sourceLineNo">383</span> int ret = ToolRunner.run(new WALPlayer(HBaseConfiguration.create()), args);<a name="line.383"></a> -<span class="sourceLineNo">384</span> System.exit(ret);<a name="line.384"></a> -<span class="sourceLineNo">385</span> }<a 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LOG.error("Interrupted while emitting Cell", e);<a name="line.126"></a> +<span class="sourceLineNo">127</span> Thread.currentThread().interrupt();<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><a name="line.130"></a> +<span class="sourceLineNo">131</span> @Override<a name="line.131"></a> +<span class="sourceLineNo">132</span> public void setup(Context context) throws IOException {<a name="line.132"></a> +<span class="sourceLineNo">133</span> Configuration conf = context.getConfiguration();<a name="line.133"></a> +<span class="sourceLineNo">134</span> String[] tables = conf.getStrings(TABLES_KEY);<a name="line.134"></a> +<span class="sourceLineNo">135</span> this.multiTableSupport = conf.getBoolean(MULTI_TABLES_SUPPORT, false);<a name="line.135"></a> +<span class="sourceLineNo">136</span> for (String table : tables) {<a name="line.136"></a> +<span class="sourceLineNo">137</span> tableSet.add(table);<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><a name="line.141"></a> +<span class="sourceLineNo">142</span> /**<a name="line.142"></a> +<span class="sourceLineNo">143</span> * A mapper that writes out {@link Mutation} to be directly applied to a running HBase instance.<a name="line.143"></a> +<span class="sourceLineNo">144</span> */<a name="line.144"></a> +<span class="sourceLineNo">145</span> protected static class WALMapper<a name="line.145"></a> +<span class="sourceLineNo">146</span> extends Mapper<WALKey, WALEdit, ImmutableBytesWritable, Mutation> {<a name="line.146"></a> +<span class="sourceLineNo">147</span> private Map<TableName, TableName> tables = new TreeMap<>();<a name="line.147"></a> +<span class="sourceLineNo">148</span><a name="line.148"></a> +<span class="sourceLineNo">149</span> @Override<a name="line.149"></a> +<span class="sourceLineNo">150</span> public void map(WALKey key, WALEdit value, Context context) throws IOException {<a name="line.150"></a> +<span class="sourceLineNo">151</span> try {<a name="line.151"></a> +<span class="sourceLineNo">152</span> if (tables.isEmpty() || tables.containsKey(key.getTableName())) {<a name="line.152"></a> +<span class="sourceLineNo">153</span> TableName targetTable =<a name="line.153"></a> +<span class="sourceLineNo">154</span> tables.isEmpty() ? key.getTableName() : tables.get(key.getTableName());<a name="line.154"></a> +<span class="sourceLineNo">155</span> ImmutableBytesWritable tableOut = new ImmutableBytesWritable(targetTable.getName());<a name="line.155"></a> +<span class="sourceLineNo">156</span> Put put = null;<a name="line.156"></a> +<span class="sourceLineNo">157</span> Delete del = null;<a name="line.157"></a> +<span class="sourceLineNo">158</span> Cell lastCell = null;<a name="line.158"></a> +<span class="sourceLineNo">159</span> for (Cell cell : value.getCells()) {<a name="line.159"></a> +<span class="sourceLineNo">160</span> // filtering WAL meta entries<a name="line.160"></a> +<span class="sourceLineNo">161</span> if (WALEdit.isMetaEditFamily(cell)) {<a name="line.161"></a> +<span class="sourceLineNo">162</span> continue;<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> // Allow a subclass filter out this cell.<a name="line.165"></a> +<span class="sourceLineNo">166</span> if (filter(context, cell)) {<a name="line.166"></a> +<span class="sourceLineNo">167</span> // A WALEdit may contain multiple operations (HBASE-3584) and/or<a name="line.167"></a> +<span class="sourceLineNo">168</span> // multiple rows (HBASE-5229).<a name="line.168"></a> +<span 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name="line.191"></a> +<span class="sourceLineNo">192</span> lastCell = cell;<a name="line.192"></a> +<span class="sourceLineNo">193</span> }<a name="line.193"></a> +<span class="sourceLineNo">194</span> // write residual KVs<a name="line.194"></a> +<span class="sourceLineNo">195</span> if (put != null) {<a name="line.195"></a> +<span class="sourceLineNo">196</span> context.write(tableOut, put);<a name="line.196"></a> +<span class="sourceLineNo">197</span> }<a name="line.197"></a> +<span class="sourceLineNo">198</span> if (del != null) {<a name="line.198"></a> +<span class="sourceLineNo">199</span> context.write(tableOut, del);<a name="line.199"></a> +<span class="sourceLineNo">200</span> }<a name="line.200"></a> +<span class="sourceLineNo">201</span> }<a name="line.201"></a> +<span class="sourceLineNo">202</span> } catch (InterruptedException e) {<a name="line.202"></a> +<span class="sourceLineNo">203</span> LOG.error("Interrupted while writing results", e);<a name="line.203"></a> +<span class="sourceLineNo">204</span> Thread.currentThread().interrupt();<a name="line.204"></a> +<span class="sourceLineNo">205</span> }<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> protected boolean filter(Context context, final Cell cell) {<a name="line.208"></a> +<span class="sourceLineNo">209</span> return true;<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> @Override<a name="line.212"></a> +<span class="sourceLineNo">213</span> protected void<a name="line.213"></a> +<span class="sourceLineNo">214</span> cleanup(Mapper<WALKey, WALEdit, ImmutableBytesWritable, Mutation>.Context context)<a name="line.214"></a> +<span class="sourceLineNo">215</span> throws IOException, InterruptedException {<a name="line.215"></a> +<span class="sourceLineNo">216</span> super.cleanup(context);<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> @Override<a name="line.219"></a> +<span class="sourceLineNo">220</span> public void setup(Context context) throws IOException {<a name="line.220"></a> +<span class="sourceLineNo">221</span> String[] tableMap = context.getConfiguration().getStrings(TABLE_MAP_KEY);<a name="line.221"></a> +<span class="sourceLineNo">222</span> String[] tablesToUse = context.getConfiguration().getStrings(TABLES_KEY);<a name="line.222"></a> +<span class="sourceLineNo">223</span> if (tableMap == null) {<a name="line.223"></a> +<span class="sourceLineNo">224</span> tableMap = tablesToUse;<a name="line.224"></a> +<span class="sourceLineNo">225</span> }<a name="line.225"></a> +<span class="sourceLineNo">226</span> if (tablesToUse == null) {<a name="line.226"></a> +<span class="sourceLineNo">227</span> // Then user wants all tables.<a name="line.227"></a> +<span class="sourceLineNo">228</span> } else if (tablesToUse.length != tableMap.length) {<a name="line.228"></a> +<span class="sourceLineNo">229</span> // this can only happen when WALMapper is used directly by a class other than WALPlayer<a name="line.229"></a> +<span class="sourceLineNo">230</span> throw new IOException("Incorrect table mapping specified .");<a name="line.230"></a> +<span class="sourceLineNo">231</span> }<a name="line.231"></a> +<span class="sourceLineNo">232</span> int i = 0;<a name="line.232"></a> +<span class="sourceLineNo">233</span> if (tablesToUse != null) {<a name="line.233"></a> +<span class="sourceLineNo">234</span> for (String table : tablesToUse) {<a name="line.234"></a> +<span class="sourceLineNo">235</span> tables.put(TableName.valueOf(table), TableName.valueOf(tableMap[i++]));<a name="line.235"></a> +<span class="sourceLineNo">236</span> }<a name="line.236"></a> +<span class="sourceLineNo">237</span> }<a name="line.237"></a> +<span class="sourceLineNo">238</span> }<a name="line.238"></a> +<span class="sourceLineNo">239</span> }<a name="line.239"></a> +<span class="sourceLineNo">240</span><a name="line.240"></a> +<span class="sourceLineNo">241</span> void setupTime(Configuration conf, String option) throws IOException {<a name="line.241"></a> +<span class="sourceLineNo">242</span> String val = conf.get(option);<a name="line.242"></a> +<span class="sourceLineNo">243</span> if (null == val) {<a name="line.243"></a> +<span class="sourceLineNo">244</span> return;<a name="line.244"></a> +<span class="sourceLineNo">245</span> }<a name="line.245"></a> +<span class="sourceLineNo">246</span> long ms;<a name="line.246"></a> +<span class="sourceLineNo">247</span> try {<a name="line.247"></a> +<span class="sourceLineNo">248</span> // first try to parse in user friendly form<a name="line.248"></a> +<span class="sourceLineNo">249</span> ms = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SS").parse(val).getTime();<a name="line.249"></a> +<span class="sourceLineNo">250</span> } catch (ParseException pe) {<a name="line.250"></a> +<span class="sourceLineNo">251</span> try {<a name="line.251"></a> +<span class="sourceLineNo">252</span> // then see if just a number of ms's was specified<a name="line.252"></a> +<span class="sourceLineNo">253</span> ms = Long.parseLong(val);<a name="line.253"></a> +<span class="sourceLineNo">254</span> } catch (NumberFormatException nfe) {<a name="line.254"></a> +<span class="sourceLineNo">255</span> throw new IOException(<a name="line.255"></a> +<span class="sourceLineNo">256</span> option + " must be specified either in the form 2001-02-20T16:35:06.99 "<a name="line.256"></a> +<span class="sourceLineNo">257</span> + "or as number of milliseconds");<a name="line.257"></a> +<span class="sourceLineNo">258</span> }<a name="line.258"></a> +<span class="sourceLineNo">259</span> }<a name="line.259"></a> +<span class="sourceLineNo">260</span> conf.setLong(option, ms);<a name="line.260"></a> +<span class="sourceLineNo">261</span> }<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> * Sets up the actual job.<a name="line.264"></a> +<span class="sourceLineNo">265</span> * @param args The command line parameters.<a name="line.265"></a> +<span class="sourceLineNo">266</span> * @return The newly created job.<a name="line.266"></a> +<span class="sourceLineNo">267</span> * @throws IOException When setting up the job fails.<a name="line.267"></a> +<span class="sourceLineNo">268</span> */<a name="line.268"></a> +<span class="sourceLineNo">269</span> public Job createSubmittableJob(String[] args) throws IOException {<a name="line.269"></a> +<span class="sourceLineNo">270</span> Configuration conf = getConf();<a name="line.270"></a> +<span class="sourceLineNo">271</span> setupTime(conf, WALInputFormat.START_TIME_KEY);<a name="line.271"></a> +<span class="sourceLineNo">272</span> setupTime(conf, WALInputFormat.END_TIME_KEY);<a name="line.272"></a> +<span class="sourceLineNo">273</span> String inputDirs = args[0];<a name="line.273"></a> +<span class="sourceLineNo">274</span> String[] tables = args[1].split(",");<a name="line.274"></a> +<span class="sourceLineNo">275</span> String[] tableMap;<a name="line.275"></a> +<span class="sourceLineNo">276</span> if (args.length > 2) {<a name="line.276"></a> +<span class="sourceLineNo">277</span> tableMap = args[2].split(",");<a name="line.277"></a> +<span class="sourceLineNo">278</span> if (tableMap.length != tables.length) {<a name="line.278"></a> +<span class="sourceLineNo">279</span> throw new IOException("The same number of tables and mapping must be provided.");<a name="line.279"></a> +<span class="sourceLineNo">280</span> }<a name="line.280"></a> +<span class="sourceLineNo">281</span> } else {<a name="line.281"></a> +<span class="sourceLineNo">282</span> // if not mapping is specified map each table to itself<a name="line.282"></a> +<span class="sourceLineNo">283</span> tableMap = tables;<a name="line.283"></a> +<span class="sourceLineNo">284</span> }<a name="line.284"></a> +<span class="sourceLineNo">285</span> conf.setStrings(TABLES_KEY, tables);<a name="line.285"></a> +<span class="sourceLineNo">286</span> conf.setStrings(TABLE_MAP_KEY, tableMap);<a name="line.286"></a> +<span class="sourceLineNo">287</span> conf.set(FileInputFormat.INPUT_DIR, inputDirs);<a name="line.287"></a> +<span class="sourceLineNo">288</span> Job job =<a name="line.288"></a> +<span class="sourceLineNo">289</span> Job.getInstance(conf, conf.get(JOB_NAME_CONF_KEY, NAME + "_" + System.currentTimeMillis()));<a name="line.289"></a> +<span class="sourceLineNo">290</span> job.setJarByClass(WALPlayer.class);<a name="line.290"></a> +<span class="sourceLineNo">291</span><a name="line.291"></a> +<span class="sourceLineNo">292</span> job.setInputFormatClass(WALInputFormat.class);<a name="line.292"></a> +<span class="sourceLineNo">293</span> job.setMapOutputKeyClass(ImmutableBytesWritable.class);<a name="line.293"></a> +<span class="sourceLineNo">294</span><a name="line.294"></a> +<span class="sourceLineNo">295</span> String hfileOutPath = conf.get(BULK_OUTPUT_CONF_KEY);<a name="line.295"></a> +<span class="sourceLineNo">296</span> if (hfileOutPath != null) {<a name="line.296"></a> +<span class="sourceLineNo">297</span> LOG.debug("add incremental job :" + hfileOutPath + " from " + inputDirs);<a name="line.297"></a> +<span class="sourceLineNo">298</span><a name="line.298"></a> +<span class="sourceLineNo">299</span> // the bulk HFile case<a name="line.299"></a> +<span class="sourceLineNo">300</span> List<TableName> tableNames = getTableNameList(tables);<a name="line.300"></a> +<span class="sourceLineNo">301</span><a name="line.301"></a> +<span class="sourceLineNo">302</span> job.setMapperClass(WALKeyValueMapper.class);<a name="line.302"></a> +<span class="sourceLineNo">303</span> job.setReducerClass(CellSortReducer.class);<a name="line.303"></a> +<span class="sourceLineNo">304</span> Path outputDir = new Path(hfileOutPath);<a name="line.304"></a> +<span class="sourceLineNo">305</span> FileOutputFormat.setOutputPath(job, outputDir);<a name="line.305"></a> +<span class="sourceLineNo">306</span> job.setMapOutputValueClass(MapReduceExtendedCell.class);<a name="line.306"></a> +<span class="sourceLineNo">307</span> try (Connection conn = ConnectionFactory.createConnection(conf);) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> List<TableInfo> tableInfoList = new ArrayList<TableInfo>();<a name="line.308"></a> +<span class="sourceLineNo">309</span> for (TableName tableName : tableNames) {<a name="line.309"></a> +<span class="sourceLineNo">310</span> Table table = 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class="sourceLineNo">330</span> Class.forName(codecCls));<a name="line.330"></a> +<span class="sourceLineNo">331</span> } catch (Exception e) {<a name="line.331"></a> +<span class="sourceLineNo">332</span> throw new IOException("Cannot determine wal codec class " + codecCls, e);<a name="line.332"></a> +<span class="sourceLineNo">333</span> }<a name="line.333"></a> +<span class="sourceLineNo">334</span> return job;<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> private List<TableName> getTableNameList(String[] tables) {<a name="line.337"></a> +<span class="sourceLineNo">338</span> List<TableName> list = new ArrayList<TableName>();<a name="line.338"></a> +<span class="sourceLineNo">339</span> for (String name : tables) {<a name="line.339"></a> +<span class="sourceLineNo">340</span> list.add(TableName.valueOf(name));<a name="line.340"></a> +<span 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The dates can be expressed");<a name="line.368"></a> +<span class="sourceLineNo">369</span> System.err.println(" in milliseconds since epoch or in yyyy-MM-dd'T'HH:mm:ss.SS format.");<a name="line.369"></a> +<span class="sourceLineNo">370</span> System.err.println(" E.g. 1234567890120 or 2009-02-13T23:32:30.12)");<a name="line.370"></a> +<span class="sourceLineNo">371</span> System.err.println("Other options:");<a name="line.371"></a> +<span class="sourceLineNo">372</span> System.err.println(" -D" + JOB_NAME_CONF_KEY + "=jobName");<a name="line.372"></a> +<span class="sourceLineNo">373</span> System.err.println(" Use the specified mapreduce job name for the wal player");<a name="line.373"></a> +<span class="sourceLineNo">374</span> System.err.println("For performance also consider the following options:\n"<a name="line.374"></a> +<span class="sourceLineNo">375</span> + " -Dmapreduce.map.speculative=false\n"<a name="line.375"></a> +<span class="sourceLineNo">376</span> + " -Dmapreduce.reduce.speculative=false");<a name="line.376"></a> +<span class="sourceLineNo">377</span> }<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> * Main entry point.<a name="line.380"></a> +<span class="sourceLineNo">381</span> * @param args The command line parameters.<a name="line.381"></a> +<span class="sourceLineNo">382</span> * @throws Exception When running the job fails.<a name="line.382"></a> +<span class="sourceLineNo">383</span> */<a name="line.383"></a> +<span class="sourceLineNo">384</span> public static void main(String[] args) throws Exception {<a name="line.384"></a> +<span class="sourceLineNo">385</span> int ret = ToolRunner.run(new WALPlayer(HBaseConfiguration.create()), args);<a name="line.385"></a> +<span class="sourceLineNo">386</span> System.exit(ret);<a name="line.386"></a> +<span class="sourceLineNo">387</span> }<a name="line.387"></a> +<span class="sourceLineNo">388</span><a name="line.388"></a> +<span class="sourceLineNo">389</span> @Override<a name="line.389"></a> +<span class="sourceLineNo">390</span> public int run(String[] args) throws Exception {<a name="line.390"></a> +<span class="sourceLineNo">391</span> if (args.length < 2) {<a name="line.391"></a> +<span class="sourceLineNo">392</span> usage("Wrong number of arguments: " + args.length);<a name="line.392"></a> +<span class="sourceLineNo">393</span> System.exit(-1);<a name="line.393"></a> +<span class="sourceLineNo">394</span> }<a name="line.394"></a> +<span class="sourceLineNo">395</span> Job job = createSubmittableJob(args);<a name="line.395"></a> +<span class="sourceLineNo">396</span> return job.waitForCompletion(true) ? 0 : 1;<a name="line.396"></a> +<span class="sourceLineNo">397</span> }<a name="line.397"></a> +<span class="sourceLineNo">398</span>}<a name="line.398"></a>
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---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/replication/VerifyReplication.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/replication/VerifyReplication.html index 2a1eb88..22e5a77 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/replication/VerifyReplication.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/replication/VerifyReplication.html @@ -652,7 +652,7 @@ <span class="sourceLineNo">644</span> }<a name="line.644"></a> <span class="sourceLineNo">645</span><a name="line.645"></a> <span class="sourceLineNo">646</span> } catch (Exception e) {<a name="line.646"></a> -<span class="sourceLineNo">647</span> e.printStackTrace();<a name="line.647"></a> +<span class="sourceLineNo">647</span> LOG.error("Failed to parse commandLine arguments", e);<a name="line.647"></a> <span class="sourceLineNo">648</span> printUsage("Can't start because " + 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Another procedure may take this lock immediately after we release the lock, and if we<a name="line.938"></a> -<span class="sourceLineNo">939</span> // crash before persist the information that we have already released the lock, then when<a name="line.939"></a> -<span class="sourceLineNo">940</span> // restarting there will be two procedures which both have the lock and cause problems.<a name="line.940"></a> -<span class="sourceLineNo">941</span> if (getState() != ProcedureState.ROLLEDBACK) {<a name="line.941"></a> -<span class="sourceLineNo">942</span> // If the state is ROLLEDBACK, it means that we have already deleted the procedure from<a name="line.942"></a> -<span class="sourceLineNo">943</span> // procedure store, so do not need to log the release operation any more.<a name="line.943"></a> -<span class="sourceLineNo">944</span> store.update(this);<a name="line.944"></a> -<span class="sourceLineNo">945</span> }<a name="line.945"></a> -<span class="sourceLineNo">946</span> releaseLock(env);<a name="line.946"></a> -<span class="sourceLineNo">947</span> }<a name="line.947"></a> -<span class="sourceLineNo">948</span><a name="line.948"></a> -<span class="sourceLineNo">949</span> @Override<a name="line.949"></a> -<span class="sourceLineNo">950</span> public int compareTo(final Procedure<TEnvironment> other) {<a name="line.950"></a> -<span class="sourceLineNo">951</span> return Long.compare(getProcId(), other.getProcId());<a name="line.951"></a> +<span class="sourceLineNo">903</span> LOG.debug("{} held the lock before restarting, call acquireLock to restore it.", this);<a name="line.903"></a> +<span class="sourceLineNo">904</span> LockState state = acquireLock(env);<a name="line.904"></a> +<span class="sourceLineNo">905</span> assert state == LockState.LOCK_ACQUIRED;<a name="line.905"></a> +<span class="sourceLineNo">906</span> }<a name="line.906"></a> +<span class="sourceLineNo">907</span><a name="line.907"></a> +<span class="sourceLineNo">908</span> /**<a name="line.908"></a> +<span class="sourceLineNo">909</span> * Internal method called by the ProcedureExecutor that starts the user-level code acquireLock().<a name="line.909"></a> +<span class="sourceLineNo">910</span> */<a name="line.910"></a> +<span class="sourceLineNo">911</span> final LockState doAcquireLock(TEnvironment env, ProcedureStore store) {<a name="line.911"></a> +<span class="sourceLineNo">912</span> if (waitInitialized(env)) {<a name="line.912"></a> +<span class="sourceLineNo">913</span> return LockState.LOCK_EVENT_WAIT;<a name="line.913"></a> +<span class="sourceLineNo">914</span> }<a name="line.914"></a> +<span class="sourceLineNo">915</span> if (lockedWhenLoading) {<a name="line.915"></a> +<span class="sourceLineNo">916</span> // reset it so we will not consider it anymore<a name="line.916"></a> +<span class="sourceLineNo">917</span> lockedWhenLoading = false;<a name="line.917"></a> +<span class="sourceLineNo">918</span> locked = true;<a name="line.918"></a> +<span class="sourceLineNo">919</span> // Here we return without persist the locked state, as lockedWhenLoading is true means<a name="line.919"></a> +<span class="sourceLineNo">920</span> // that the locked field of the procedure stored in procedure store is true, so we do not need<a name="line.920"></a> +<span class="sourceLineNo">921</span> // to store it again.<a name="line.921"></a> +<span class="sourceLineNo">922</span> return LockState.LOCK_ACQUIRED;<a name="line.922"></a> +<span class="sourceLineNo">923</span> }<a name="line.923"></a> +<span class="sourceLineNo">924</span> LockState state = acquireLock(env);<a name="line.924"></a> +<span class="sourceLineNo">925</span> if (state == LockState.LOCK_ACQUIRED) {<a name="line.925"></a> +<span class="sourceLineNo">926</span> locked = true;<a name="line.926"></a> +<span class="sourceLineNo">927</span> // persist that we have held the lock. This must be done before we actually execute the<a name="line.927"></a> +<span class="sourceLineNo">928</span> // procedure, otherwise when restarting, we may consider the procedure does not have a lock,<a name="line.928"></a> +<span class="sourceLineNo">929</span> // but it may have already done some changes as we have already executed it, and if another<a name="line.929"></a> +<span class="sourceLineNo">930</span> // procedure gets the lock, then the semantic will be broken if the holdLock is true, as we do<a name="line.930"></a> +<span class="sourceLineNo">931</span> // not expect that another procedure can be executed in the middle.<a name="line.931"></a> +<span class="sourceLineNo">932</span> store.update(this);<a name="line.932"></a> +<span class="sourceLineNo">933</span> }<a name="line.933"></a> +<span class="sourceLineNo">934</span> return state;<a name="line.934"></a> +<span class="sourceLineNo">935</span> }<a name="line.935"></a> +<span class="sourceLineNo">936</span><a name="line.936"></a> +<span class="sourceLineNo">937</span> /**<a name="line.937"></a> +<span class="sourceLineNo">938</span> * Internal method called by the ProcedureExecutor that starts the user-level code releaseLock().<a name="line.938"></a> +<span class="sourceLineNo">939</span> */<a name="line.939"></a> +<span class="sourceLineNo">940</span> final void doReleaseLock(TEnvironment env, ProcedureStore store) {<a name="line.940"></a> +<span class="sourceLineNo">941</span> locked = false;<a name="line.941"></a> +<span class="sourceLineNo">942</span> // persist that we have released the lock. This must be done before we actually release the<a name="line.942"></a> +<span class="sourceLineNo">943</span> // lock. Another procedure may take this lock immediately after we release the lock, and if we<a name="line.943"></a> +<span class="sourceLineNo">944</span> // crash before persist the information that we have already released the lock, then when<a name="line.944"></a> +<span class="sourceLineNo">945</span> // restarting there will be two procedures which both have the lock and cause problems.<a name="line.945"></a> +<span class="sourceLineNo">946</span> if (getState() != ProcedureState.ROLLEDBACK) {<a name="line.946"></a> +<span class="sourceLineNo">947</span> // If the state is ROLLEDBACK, it means that we have already deleted the procedure from<a name="line.947"></a> +<span class="sourceLineNo">948</span> // procedure store, so do not need to log the release operation any more.<a name="line.948"></a> +<span class="sourceLineNo">949</span> store.update(this);<a name="line.949"></a> +<span class="sourceLineNo">950</span> }<a name="line.950"></a> +<span class="sourceLineNo">951</span> releaseLock(env);<a name="line.951"></a> <span class="sourceLineNo">952</span> }<a name="line.952"></a> <span class="sourceLineNo">953</span><a name="line.953"></a> -<span class="sourceLineNo">954</span> // ==========================================================================<a name="line.954"></a> -<span class="sourceLineNo">955</span> // misc utils<a name="line.955"></a> -<span class="sourceLineNo">956</span> // ==========================================================================<a name="line.956"></a> -<span class="sourceLineNo">957</span><a name="line.957"></a> -<span class="sourceLineNo">958</span> /**<a name="line.958"></a> -<span class="sourceLineNo">959</span> * Get an hashcode for the specified Procedure ID<a name="line.959"></a> -<span class="sourceLineNo">960</span> * @return the hashcode for the specified procId<a name="line.960"></a> -<span class="sourceLineNo">961</span> */<a name="line.961"></a> -<span class="sourceLineNo">962</span> public static long getProcIdHashCode(long procId) {<a name="line.962"></a> -<span class="sourceLineNo">963</span> long h = procId;<a name="line.963"></a> -<span class="sourceLineNo">964</span> h ^= h >> 16;<a name="line.964"></a> -<span class="sourceLineNo">965</span> h *= 0x85ebca6b;<a name="line.965"></a> -<span class="sourceLineNo">966</span> h ^= h >> 13;<a name="line.966"></a> -<span class="sourceLineNo">967</span> h *= 0xc2b2ae35;<a name="line.967"></a> -<span class="sourceLineNo">968</span> h ^= h >> 16;<a name="line.968"></a> -<span class="sourceLineNo">969</span> return h;<a name="line.969"></a> -<span class="sourceLineNo">970</span> }<a name="line.970"></a> -<span class="sourceLineNo">971</span><a name="line.971"></a> -<span class="sourceLineNo">972</span> /**<a name="line.972"></a> -<span class="sourceLineNo">973</span> * Helper to lookup the root Procedure ID given a specified procedure.<a name="line.973"></a> -<span class="sourceLineNo">974</span> */<a name="line.974"></a> -<span class="sourceLineNo">975</span> protected static <T> Long getRootProcedureId(Map<Long, Procedure<T>> procedures,<a name="line.975"></a> -<span class="sourceLineNo">976</span> Procedure<T> proc) {<a name="line.976"></a> -<span class="sourceLineNo">977</span> while (proc.hasParent()) {<a name="line.977"></a> -<span class="sourceLineNo">978</span> proc = procedures.get(proc.getParentProcId());<a name="line.978"></a> -<span class="sourceLineNo">979</span> if (proc == null) {<a name="line.979"></a> -<span class="sourceLineNo">980</span> return null;<a name="line.980"></a> -<span class="sourceLineNo">981</span> }<a name="line.981"></a> -<span class="sourceLineNo">982</span> }<a name="line.982"></a> -<span class="sourceLineNo">983</span> return proc.getProcId();<a name="line.983"></a> -<span class="sourceLineNo">984</span> }<a name="line.984"></a> -<span class="sourceLineNo">985</span><a name="line.985"></a> -<span class="sourceLineNo">986</span> /**<a name="line.986"></a> -<span class="sourceLineNo">987</span> * @param a the first procedure to be compared.<a name="line.987"></a> -<span class="sourceLineNo">988</span> * @param b the second procedure to be compared.<a name="line.988"></a> -<span class="sourceLineNo">989</span> * @return true if the two procedures have the same parent<a name="line.989"></a> -<span class="sourceLineNo">990</span> */<a name="line.990"></a> -<span class="sourceLineNo">991</span> public static boolean haveSameParent(Procedure<?> a, Procedure<?> b) {<a name="line.991"></a> -<span class="sourceLineNo">992</span> return a.hasParent() && b.hasParent() && (a.getParentProcId() == b.getParentProcId());<a name="line.992"></a> -<span class="sourceLineNo">993</span> }<a name="line.993"></a> -<span class="sourceLineNo">994</span>}<a name="line.994"></a> +<span class="sourceLineNo">954</span> @Override<a name="line.954"></a> +<span class="sourceLineNo">955</span> public int compareTo(final Procedure<TEnvironment> other) {<a name="line.955"></a> +<span class="sourceLineNo">956</span> return Long.compare(getProcId(), other.getProcId());<a name="line.956"></a> +<span class="sourceLineNo">957</span> }<a name="line.957"></a> +<span class="sourceLineNo">958</span><a name="line.958"></a> +<span class="sourceLineNo">959</span> // ==========================================================================<a name="line.959"></a> +<span class="sourceLineNo">960</span> // misc utils<a name="line.960"></a> +<span class="sourceLineNo">961</span> // ==========================================================================<a name="line.961"></a> +<span class="sourceLineNo">962</span><a name="line.962"></a> +<span class="sourceLineNo">963</span> /**<a name="line.963"></a> +<span class="sourceLineNo">964</span> * Get an hashcode for the specified Procedure ID<a name="line.964"></a> +<span class="sourceLineNo">965</span> * @return the hashcode for the specified procId<a name="line.965"></a> +<span class="sourceLineNo">966</span> */<a 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+<span class="sourceLineNo">979</span> */<a name="line.979"></a> +<span class="sourceLineNo">980</span> protected static <T> Long getRootProcedureId(Map<Long, Procedure<T>> procedures,<a name="line.980"></a> +<span class="sourceLineNo">981</span> Procedure<T> proc) {<a name="line.981"></a> +<span class="sourceLineNo">982</span> while (proc.hasParent()) {<a name="line.982"></a> +<span class="sourceLineNo">983</span> proc = procedures.get(proc.getParentProcId());<a name="line.983"></a> +<span class="sourceLineNo">984</span> if (proc == null) {<a name="line.984"></a> +<span class="sourceLineNo">985</span> return null;<a name="line.985"></a> +<span class="sourceLineNo">986</span> }<a name="line.986"></a> +<span class="sourceLineNo">987</span> }<a name="line.987"></a> +<span class="sourceLineNo">988</span> return proc.getProcId();<a name="line.988"></a> +<span class="sourceLineNo">989</span> }<a name="line.989"></a> +<span class="sourceLineNo">990</span><a name="line.990"></a> +<span class="sourceLineNo">991</span> /**<a name="line.991"></a> +<span class="sourceLineNo">992</span> * @param a the first procedure to be compared.<a name="line.992"></a> +<span class="sourceLineNo">993</span> * @param b the second procedure to be compared.<a name="line.993"></a> +<span class="sourceLineNo">994</span> * @return true if the two procedures have the same parent<a name="line.994"></a> +<span class="sourceLineNo">995</span> */<a name="line.995"></a> +<span class="sourceLineNo">996</span> public static boolean haveSameParent(Procedure<?> a, Procedure<?> b) {<a name="line.996"></a> +<span class="sourceLineNo">997</span> return a.hasParent() && b.hasParent() && (a.getParentProcId() == b.getParentProcId());<a name="line.997"></a> +<span class="sourceLineNo">998</span> }<a name="line.998"></a> +<span class="sourceLineNo">999</span>}<a name="line.999"></a>