http://git-wip-us.apache.org/repos/asf/hbase-site/blob/35decbe4/devapidocs/src-html/org/apache/hadoop/hbase/snapshot/ExportSnapshot.ExportMapper.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/snapshot/ExportSnapshot.ExportMapper.html b/devapidocs/src-html/org/apache/hadoop/hbase/snapshot/ExportSnapshot.ExportMapper.html index 87257da..add30e1 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/snapshot/ExportSnapshot.ExportMapper.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/snapshot/ExportSnapshot.ExportMapper.html @@ -116,1006 +116,1008 @@ <span class="sourceLineNo">108</span> private static final String CONF_BUFFER_SIZE = "snapshot.export.buffer.size";<a name="line.108"></a> <span class="sourceLineNo">109</span> private static final String CONF_MAP_GROUP = "snapshot.export.default.map.group";<a name="line.109"></a> <span class="sourceLineNo">110</span> private static final String CONF_BANDWIDTH_MB = "snapshot.export.map.bandwidth.mb";<a name="line.110"></a> -<span class="sourceLineNo">111</span> protected static final String CONF_SKIP_TMP = "snapshot.export.skip.tmp";<a name="line.111"></a> -<span class="sourceLineNo">112</span><a name="line.112"></a> -<span class="sourceLineNo">113</span> static class Testing {<a name="line.113"></a> -<span class="sourceLineNo">114</span> static final String CONF_TEST_FAILURE = "test.snapshot.export.failure";<a name="line.114"></a> -<span class="sourceLineNo">115</span> static final String CONF_TEST_FAILURE_COUNT = "test.snapshot.export.failure.count";<a name="line.115"></a> -<span class="sourceLineNo">116</span> int failuresCountToInject = 0;<a name="line.116"></a> -<span class="sourceLineNo">117</span> int injectedFailureCount = 0;<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> // Command line options and defaults.<a name="line.120"></a> -<span class="sourceLineNo">121</span> static final class Options {<a name="line.121"></a> -<span class="sourceLineNo">122</span> static final Option SNAPSHOT = new Option(null, "snapshot", true, "Snapshot to restore.");<a name="line.122"></a> -<span class="sourceLineNo">123</span> static final Option TARGET_NAME = new Option(null, "target", true,<a name="line.123"></a> -<span class="sourceLineNo">124</span> "Target name for the snapshot.");<a name="line.124"></a> -<span class="sourceLineNo">125</span> static final Option COPY_TO = new Option(null, "copy-to", true, "Remote "<a name="line.125"></a> -<span class="sourceLineNo">126</span> + "destination hdfs://");<a name="line.126"></a> -<span class="sourceLineNo">127</span> static final Option COPY_FROM = new Option(null, "copy-from", true,<a name="line.127"></a> -<span class="sourceLineNo">128</span> "Input folder hdfs:// (default hbase.rootdir)");<a name="line.128"></a> -<span class="sourceLineNo">129</span> static final Option NO_CHECKSUM_VERIFY = new Option(null, "no-checksum-verify", false,<a name="line.129"></a> -<span class="sourceLineNo">130</span> "Do not verify checksum, use name+length only.");<a name="line.130"></a> -<span class="sourceLineNo">131</span> static final Option NO_TARGET_VERIFY = new Option(null, "no-target-verify", false,<a name="line.131"></a> -<span class="sourceLineNo">132</span> "Do not verify the integrity of the exported snapshot.");<a name="line.132"></a> -<span class="sourceLineNo">133</span> static final Option OVERWRITE = new Option(null, "overwrite", false,<a name="line.133"></a> -<span class="sourceLineNo">134</span> "Rewrite the snapshot manifest if already exists.");<a name="line.134"></a> -<span class="sourceLineNo">135</span> static final Option CHUSER = new Option(null, "chuser", true,<a name="line.135"></a> -<span class="sourceLineNo">136</span> "Change the owner of the files to the specified one.");<a name="line.136"></a> -<span class="sourceLineNo">137</span> static final Option CHGROUP = new Option(null, "chgroup", true,<a name="line.137"></a> -<span class="sourceLineNo">138</span> "Change the group of the files to the specified one.");<a name="line.138"></a> -<span class="sourceLineNo">139</span> static final Option CHMOD = new Option(null, "chmod", true,<a name="line.139"></a> -<span class="sourceLineNo">140</span> "Change the permission of the files to the specified one.");<a name="line.140"></a> -<span class="sourceLineNo">141</span> static final Option MAPPERS = new Option(null, "mappers", true,<a name="line.141"></a> -<span class="sourceLineNo">142</span> "Number of mappers to use during the copy (mapreduce.job.maps).");<a name="line.142"></a> -<span class="sourceLineNo">143</span> static final Option BANDWIDTH = new Option(null, "bandwidth", true,<a name="line.143"></a> -<span class="sourceLineNo">144</span> "Limit bandwidth to this value in MB/second.");<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> // Export Map-Reduce Counters, to keep track of the progress<a name="line.147"></a> -<span class="sourceLineNo">148</span> public enum Counter {<a name="line.148"></a> -<span class="sourceLineNo">149</span> MISSING_FILES, FILES_COPIED, FILES_SKIPPED, COPY_FAILED,<a name="line.149"></a> -<span class="sourceLineNo">150</span> BYTES_EXPECTED, BYTES_SKIPPED, BYTES_COPIED<a name="line.150"></a> -<span class="sourceLineNo">151</span> }<a name="line.151"></a> -<span class="sourceLineNo">152</span><a name="line.152"></a> -<span class="sourceLineNo">153</span> private static class ExportMapper extends Mapper<BytesWritable, NullWritable,<a name="line.153"></a> -<span class="sourceLineNo">154</span> NullWritable, NullWritable> {<a name="line.154"></a> -<span class="sourceLineNo">155</span> private static final Log LOG = LogFactory.getLog(ExportMapper.class);<a name="line.155"></a> -<span class="sourceLineNo">156</span> final static int REPORT_SIZE = 1 * 1024 * 1024;<a name="line.156"></a> -<span class="sourceLineNo">157</span> final static int BUFFER_SIZE = 64 * 1024;<a name="line.157"></a> -<span class="sourceLineNo">158</span><a name="line.158"></a> -<span class="sourceLineNo">159</span> private boolean verifyChecksum;<a name="line.159"></a> -<span class="sourceLineNo">160</span> private String filesGroup;<a name="line.160"></a> -<span class="sourceLineNo">161</span> private String filesUser;<a name="line.161"></a> -<span class="sourceLineNo">162</span> private short filesMode;<a name="line.162"></a> -<span class="sourceLineNo">163</span> private int bufferSize;<a name="line.163"></a> -<span class="sourceLineNo">164</span><a name="line.164"></a> -<span class="sourceLineNo">165</span> private FileSystem outputFs;<a name="line.165"></a> -<span class="sourceLineNo">166</span> private Path outputArchive;<a name="line.166"></a> -<span class="sourceLineNo">167</span> private Path outputRoot;<a name="line.167"></a> -<span class="sourceLineNo">168</span><a name="line.168"></a> -<span class="sourceLineNo">169</span> private FileSystem inputFs;<a name="line.169"></a> -<span class="sourceLineNo">170</span> private Path inputArchive;<a name="line.170"></a> -<span class="sourceLineNo">171</span> private Path inputRoot;<a name="line.171"></a> -<span class="sourceLineNo">172</span><a name="line.172"></a> -<span class="sourceLineNo">173</span> private static Testing testing = new Testing();<a name="line.173"></a> -<span class="sourceLineNo">174</span><a name="line.174"></a> -<span class="sourceLineNo">175</span> @Override<a name="line.175"></a> -<span class="sourceLineNo">176</span> public void setup(Context context) throws IOException {<a name="line.176"></a> -<span class="sourceLineNo">177</span> Configuration conf = context.getConfiguration();<a name="line.177"></a> -<span class="sourceLineNo">178</span><a name="line.178"></a> -<span class="sourceLineNo">179</span> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);<a name="line.179"></a> -<span class="sourceLineNo">180</span> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);<a name="line.180"></a> -<span class="sourceLineNo">181</span><a name="line.181"></a> -<span class="sourceLineNo">182</span> verifyChecksum = conf.getBoolean(CONF_CHECKSUM_VERIFY, true);<a name="line.182"></a> -<span class="sourceLineNo">183</span><a name="line.183"></a> -<span class="sourceLineNo">184</span> filesGroup = conf.get(CONF_FILES_GROUP);<a name="line.184"></a> -<span class="sourceLineNo">185</span> filesUser = conf.get(CONF_FILES_USER);<a name="line.185"></a> -<span class="sourceLineNo">186</span> filesMode = (short)conf.getInt(CONF_FILES_MODE, 0);<a name="line.186"></a> -<span class="sourceLineNo">187</span> outputRoot = new Path(conf.get(CONF_OUTPUT_ROOT));<a name="line.187"></a> -<span class="sourceLineNo">188</span> inputRoot = new Path(conf.get(CONF_INPUT_ROOT));<a name="line.188"></a> -<span class="sourceLineNo">189</span><a name="line.189"></a> -<span class="sourceLineNo">190</span> inputArchive = new Path(inputRoot, HConstants.HFILE_ARCHIVE_DIRECTORY);<a name="line.190"></a> -<span class="sourceLineNo">191</span> outputArchive = new Path(outputRoot, HConstants.HFILE_ARCHIVE_DIRECTORY);<a name="line.191"></a> -<span class="sourceLineNo">192</span><a name="line.192"></a> -<span class="sourceLineNo">193</span> try {<a name="line.193"></a> -<span class="sourceLineNo">194</span> srcConf.setBoolean("fs." + inputRoot.toUri().getScheme() + ".impl.disable.cache", true);<a name="line.194"></a> -<span class="sourceLineNo">195</span> inputFs = FileSystem.get(inputRoot.toUri(), srcConf);<a name="line.195"></a> -<span class="sourceLineNo">196</span> } catch (IOException e) {<a name="line.196"></a> -<span class="sourceLineNo">197</span> throw new IOException("Could not get the input FileSystem with root=" + inputRoot, e);<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> try {<a name="line.200"></a> -<span class="sourceLineNo">201</span> destConf.setBoolean("fs." + outputRoot.toUri().getScheme() + ".impl.disable.cache", true);<a name="line.201"></a> -<span class="sourceLineNo">202</span> outputFs = FileSystem.get(outputRoot.toUri(), destConf);<a name="line.202"></a> -<span class="sourceLineNo">203</span> } catch (IOException e) {<a name="line.203"></a> -<span class="sourceLineNo">204</span> throw new IOException("Could not get the output FileSystem with root="+ outputRoot, e);<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> // Use the default block size of the outputFs if bigger<a name="line.207"></a> -<span class="sourceLineNo">208</span> int defaultBlockSize = Math.max((int) outputFs.getDefaultBlockSize(outputRoot), BUFFER_SIZE);<a name="line.208"></a> -<span class="sourceLineNo">209</span> bufferSize = conf.getInt(CONF_BUFFER_SIZE, defaultBlockSize);<a name="line.209"></a> -<span class="sourceLineNo">210</span> LOG.info("Using bufferSize=" + StringUtils.humanReadableInt(bufferSize));<a name="line.210"></a> -<span class="sourceLineNo">211</span><a name="line.211"></a> -<span class="sourceLineNo">212</span> for (Counter c : Counter.values()) {<a name="line.212"></a> -<span class="sourceLineNo">213</span> context.getCounter(c).increment(0);<a name="line.213"></a> -<span class="sourceLineNo">214</span> }<a name="line.214"></a> -<span class="sourceLineNo">215</span> if (context.getConfiguration().getBoolean(Testing.CONF_TEST_FAILURE, false)) {<a name="line.215"></a> -<span class="sourceLineNo">216</span> testing.failuresCountToInject = conf.getInt(Testing.CONF_TEST_FAILURE_COUNT, 0);<a name="line.216"></a> -<span class="sourceLineNo">217</span> // Get number of times we have already injected failure based on attempt number of this<a name="line.217"></a> -<span class="sourceLineNo">218</span> // task.<a name="line.218"></a> -<span class="sourceLineNo">219</span> testing.injectedFailureCount = context.getTaskAttemptID().getId();<a name="line.219"></a> -<span class="sourceLineNo">220</span> }<a name="line.220"></a> -<span class="sourceLineNo">221</span> }<a name="line.221"></a> -<span class="sourceLineNo">222</span><a name="line.222"></a> -<span class="sourceLineNo">223</span> @Override<a name="line.223"></a> -<span class="sourceLineNo">224</span> protected void cleanup(Context context) {<a name="line.224"></a> -<span class="sourceLineNo">225</span> IOUtils.closeStream(inputFs);<a name="line.225"></a> -<span class="sourceLineNo">226</span> IOUtils.closeStream(outputFs);<a name="line.226"></a> -<span class="sourceLineNo">227</span> }<a name="line.227"></a> -<span class="sourceLineNo">228</span><a name="line.228"></a> -<span class="sourceLineNo">229</span> @Override<a name="line.229"></a> -<span class="sourceLineNo">230</span> public void map(BytesWritable key, NullWritable value, Context context)<a name="line.230"></a> -<span class="sourceLineNo">231</span> throws InterruptedException, IOException {<a name="line.231"></a> -<span class="sourceLineNo">232</span> SnapshotFileInfo inputInfo = SnapshotFileInfo.parseFrom(key.copyBytes());<a name="line.232"></a> -<span class="sourceLineNo">233</span> Path outputPath = getOutputPath(inputInfo);<a name="line.233"></a> -<span class="sourceLineNo">234</span><a name="line.234"></a> -<span class="sourceLineNo">235</span> copyFile(context, inputInfo, outputPath);<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> * Returns the location where the inputPath will be copied.<a name="line.239"></a> -<span class="sourceLineNo">240</span> */<a name="line.240"></a> -<span class="sourceLineNo">241</span> private Path getOutputPath(final SnapshotFileInfo inputInfo) throws IOException {<a name="line.241"></a> -<span class="sourceLineNo">242</span> Path path = null;<a name="line.242"></a> -<span class="sourceLineNo">243</span> switch (inputInfo.getType()) {<a name="line.243"></a> -<span class="sourceLineNo">244</span> case HFILE:<a name="line.244"></a> -<span class="sourceLineNo">245</span> Path inputPath = new Path(inputInfo.getHfile());<a name="line.245"></a> -<span class="sourceLineNo">246</span> String family = inputPath.getParent().getName();<a name="line.246"></a> -<span class="sourceLineNo">247</span> TableName table =HFileLink.getReferencedTableName(inputPath.getName());<a name="line.247"></a> -<span class="sourceLineNo">248</span> String region = HFileLink.getReferencedRegionName(inputPath.getName());<a name="line.248"></a> -<span class="sourceLineNo">249</span> String hfile = HFileLink.getReferencedHFileName(inputPath.getName());<a name="line.249"></a> -<span class="sourceLineNo">250</span> path = new Path(FSUtils.getTableDir(new Path("./"), table),<a name="line.250"></a> -<span class="sourceLineNo">251</span> new Path(region, new Path(family, hfile)));<a name="line.251"></a> -<span class="sourceLineNo">252</span> break;<a name="line.252"></a> -<span class="sourceLineNo">253</span> case WAL:<a name="line.253"></a> -<span class="sourceLineNo">254</span> LOG.warn("snapshot does not keeps WALs: " + inputInfo);<a name="line.254"></a> -<span class="sourceLineNo">255</span> break;<a name="line.255"></a> -<span class="sourceLineNo">256</span> default:<a name="line.256"></a> -<span class="sourceLineNo">257</span> throw new IOException("Invalid File Type: " + inputInfo.getType().toString());<a name="line.257"></a> -<span class="sourceLineNo">258</span> }<a name="line.258"></a> -<span class="sourceLineNo">259</span> return new Path(outputArchive, path);<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> /**<a name="line.262"></a> -<span class="sourceLineNo">263</span> * Used by TestExportSnapshot to test for retries when failures happen.<a name="line.263"></a> -<span class="sourceLineNo">264</span> * Failure is injected in {@link #copyFile(Context, SnapshotFileInfo, Path)}.<a name="line.264"></a> -<span class="sourceLineNo">265</span> */<a name="line.265"></a> -<span class="sourceLineNo">266</span> private void injectTestFailure(final Context context, final SnapshotFileInfo inputInfo)<a name="line.266"></a> -<span class="sourceLineNo">267</span> throws IOException {<a name="line.267"></a> -<span class="sourceLineNo">268</span> if (!context.getConfiguration().getBoolean(Testing.CONF_TEST_FAILURE, false)) return;<a name="line.268"></a> -<span class="sourceLineNo">269</span> if (testing.injectedFailureCount >= testing.failuresCountToInject) return;<a name="line.269"></a> -<span class="sourceLineNo">270</span> testing.injectedFailureCount++;<a name="line.270"></a> -<span class="sourceLineNo">271</span> context.getCounter(Counter.COPY_FAILED).increment(1);<a name="line.271"></a> -<span class="sourceLineNo">272</span> LOG.debug("Injecting failure. Count: " + testing.injectedFailureCount);<a name="line.272"></a> -<span class="sourceLineNo">273</span> throw new IOException(String.format("TEST FAILURE (%d of max %d): Unable to copy input=%s",<a name="line.273"></a> -<span class="sourceLineNo">274</span> testing.injectedFailureCount, testing.failuresCountToInject, inputInfo));<a name="line.274"></a> -<span class="sourceLineNo">275</span> }<a name="line.275"></a> -<span class="sourceLineNo">276</span><a name="line.276"></a> -<span class="sourceLineNo">277</span> private void copyFile(final Context context, final SnapshotFileInfo inputInfo,<a name="line.277"></a> -<span class="sourceLineNo">278</span> final Path outputPath) throws IOException {<a name="line.278"></a> -<span class="sourceLineNo">279</span> // Get the file information<a name="line.279"></a> -<span class="sourceLineNo">280</span> FileStatus inputStat = getSourceFileStatus(context, inputInfo);<a name="line.280"></a> -<span class="sourceLineNo">281</span><a name="line.281"></a> -<span class="sourceLineNo">282</span> // Verify if the output file exists and is the same that we want to copy<a name="line.282"></a> -<span class="sourceLineNo">283</span> if (outputFs.exists(outputPath)) {<a name="line.283"></a> -<span class="sourceLineNo">284</span> FileStatus outputStat = outputFs.getFileStatus(outputPath);<a name="line.284"></a> -<span class="sourceLineNo">285</span> if (outputStat != null && sameFile(inputStat, outputStat)) {<a name="line.285"></a> -<span class="sourceLineNo">286</span> LOG.info("Skip copy " + inputStat.getPath() + " to " + outputPath + ", same file.");<a name="line.286"></a> -<span class="sourceLineNo">287</span> context.getCounter(Counter.FILES_SKIPPED).increment(1);<a name="line.287"></a> -<span class="sourceLineNo">288</span> context.getCounter(Counter.BYTES_SKIPPED).increment(inputStat.getLen());<a name="line.288"></a> -<span class="sourceLineNo">289</span> return;<a name="line.289"></a> -<span class="sourceLineNo">290</span> }<a name="line.290"></a> -<span class="sourceLineNo">291</span> }<a name="line.291"></a> -<span class="sourceLineNo">292</span><a name="line.292"></a> -<span class="sourceLineNo">293</span> InputStream in = openSourceFile(context, inputInfo);<a name="line.293"></a> -<span class="sourceLineNo">294</span> int bandwidthMB = context.getConfiguration().getInt(CONF_BANDWIDTH_MB, 100);<a name="line.294"></a> -<span class="sourceLineNo">295</span> if (Integer.MAX_VALUE != bandwidthMB) {<a name="line.295"></a> -<span class="sourceLineNo">296</span> in = new ThrottledInputStream(new BufferedInputStream(in), bandwidthMB * 1024 * 1024L);<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> try {<a name="line.299"></a> -<span class="sourceLineNo">300</span> context.getCounter(Counter.BYTES_EXPECTED).increment(inputStat.getLen());<a name="line.300"></a> -<span class="sourceLineNo">301</span><a name="line.301"></a> -<span class="sourceLineNo">302</span> // Ensure that the output folder is there and copy the file<a name="line.302"></a> -<span class="sourceLineNo">303</span> createOutputPath(outputPath.getParent());<a name="line.303"></a> -<span class="sourceLineNo">304</span> FSDataOutputStream out = outputFs.create(outputPath, true);<a name="line.304"></a> -<span class="sourceLineNo">305</span> try {<a name="line.305"></a> -<span class="sourceLineNo">306</span> copyData(context, inputStat.getPath(), in, outputPath, out, inputStat.getLen());<a name="line.306"></a> -<span class="sourceLineNo">307</span> } finally {<a name="line.307"></a> -<span class="sourceLineNo">308</span> out.close();<a name="line.308"></a> -<span class="sourceLineNo">309</span> }<a name="line.309"></a> -<span class="sourceLineNo">310</span><a name="line.310"></a> -<span class="sourceLineNo">311</span> // Try to Preserve attributes<a name="line.311"></a> -<span class="sourceLineNo">312</span> if (!preserveAttributes(outputPath, inputStat)) {<a name="line.312"></a> -<span class="sourceLineNo">313</span> LOG.warn("You may have to run manually chown on: " + outputPath);<a name="line.313"></a> -<span class="sourceLineNo">314</span> }<a name="line.314"></a> -<span class="sourceLineNo">315</span> } finally {<a name="line.315"></a> -<span class="sourceLineNo">316</span> in.close();<a name="line.316"></a> -<span class="sourceLineNo">317</span> injectTestFailure(context, inputInfo);<a name="line.317"></a> -<span class="sourceLineNo">318</span> }<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> /**<a name="line.321"></a> -<span class="sourceLineNo">322</span> * Create the output folder and optionally set ownership.<a name="line.322"></a> -<span class="sourceLineNo">323</span> */<a name="line.323"></a> -<span class="sourceLineNo">324</span> private void createOutputPath(final Path path) throws IOException {<a name="line.324"></a> -<span class="sourceLineNo">325</span> if (filesUser == null && filesGroup == null) {<a name="line.325"></a> -<span class="sourceLineNo">326</span> outputFs.mkdirs(path);<a name="line.326"></a> -<span class="sourceLineNo">327</span> } else {<a name="line.327"></a> -<span class="sourceLineNo">328</span> Path parent = path.getParent();<a name="line.328"></a> -<span class="sourceLineNo">329</span> if (!outputFs.exists(parent) && !parent.isRoot()) {<a name="line.329"></a> -<span class="sourceLineNo">330</span> createOutputPath(parent);<a name="line.330"></a> -<span class="sourceLineNo">331</span> }<a name="line.331"></a> -<span class="sourceLineNo">332</span> outputFs.mkdirs(path);<a name="line.332"></a> -<span class="sourceLineNo">333</span> if (filesUser != null || filesGroup != null) {<a name="line.333"></a> -<span class="sourceLineNo">334</span> // override the owner when non-null user/group is specified<a name="line.334"></a> -<span class="sourceLineNo">335</span> outputFs.setOwner(path, filesUser, filesGroup);<a name="line.335"></a> -<span class="sourceLineNo">336</span> }<a name="line.336"></a> -<span class="sourceLineNo">337</span> if (filesMode > 0) {<a name="line.337"></a> -<span class="sourceLineNo">338</span> outputFs.setPermission(path, new FsPermission(filesMode));<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> }<a name="line.341"></a> -<span class="sourceLineNo">342</span><a name="line.342"></a> -<span class="sourceLineNo">343</span> /**<a name="line.343"></a> -<span class="sourceLineNo">344</span> * Try to Preserve the files attribute selected by the user copying them from the source file<a name="line.344"></a> -<span class="sourceLineNo">345</span> * This is only required when you are exporting as a different user than "hbase" or on a system<a name="line.345"></a> -<span class="sourceLineNo">346</span> * that doesn't have the "hbase" user.<a name="line.346"></a> -<span class="sourceLineNo">347</span> *<a name="line.347"></a> -<span class="sourceLineNo">348</span> * This is not considered a blocking failure since the user can force a chmod with the user<a name="line.348"></a> -<span class="sourceLineNo">349</span> * that knows is available on the system.<a name="line.349"></a> -<span class="sourceLineNo">350</span> */<a name="line.350"></a> -<span class="sourceLineNo">351</span> private boolean preserveAttributes(final Path path, final FileStatus refStat) {<a name="line.351"></a> -<span class="sourceLineNo">352</span> FileStatus stat;<a name="line.352"></a> -<span class="sourceLineNo">353</span> try {<a name="line.353"></a> -<span class="sourceLineNo">354</span> stat = outputFs.getFileStatus(path);<a name="line.354"></a> -<span class="sourceLineNo">355</span> } catch (IOException e) {<a name="line.355"></a> -<span class="sourceLineNo">356</span> LOG.warn("Unable to get the status for file=" + path);<a name="line.356"></a> -<span class="sourceLineNo">357</span> return false;<a name="line.357"></a> -<span class="sourceLineNo">358</span> }<a name="line.358"></a> -<span class="sourceLineNo">359</span><a name="line.359"></a> -<span class="sourceLineNo">360</span> try {<a name="line.360"></a> -<span class="sourceLineNo">361</span> if (filesMode > 0 && stat.getPermission().toShort() != filesMode) {<a name="line.361"></a> -<span class="sourceLineNo">362</span> outputFs.setPermission(path, new FsPermission(filesMode));<a name="line.362"></a> -<span class="sourceLineNo">363</span> } else if (refStat != null && !stat.getPermission().equals(refStat.getPermission())) {<a name="line.363"></a> -<span class="sourceLineNo">364</span> outputFs.setPermission(path, refStat.getPermission());<a name="line.364"></a> -<span class="sourceLineNo">365</span> }<a name="line.365"></a> -<span class="sourceLineNo">366</span> } catch (IOException e) {<a name="line.366"></a> -<span class="sourceLineNo">367</span> LOG.warn("Unable to set the permission for file="+ stat.getPath() +": "+ e.getMessage());<a name="line.367"></a> -<span class="sourceLineNo">368</span> return false;<a name="line.368"></a> -<span class="sourceLineNo">369</span> }<a name="line.369"></a> -<span class="sourceLineNo">370</span><a name="line.370"></a> -<span class="sourceLineNo">371</span> boolean hasRefStat = (refStat != null);<a name="line.371"></a> -<span class="sourceLineNo">372</span> String user = stringIsNotEmpty(filesUser) || !hasRefStat ? filesUser : refStat.getOwner();<a name="line.372"></a> -<span class="sourceLineNo">373</span> String group = stringIsNotEmpty(filesGroup) || !hasRefStat ? filesGroup : refStat.getGroup();<a name="line.373"></a> -<span class="sourceLineNo">374</span> if (stringIsNotEmpty(user) || stringIsNotEmpty(group)) {<a name="line.374"></a> -<span class="sourceLineNo">375</span> try {<a name="line.375"></a> -<span class="sourceLineNo">376</span> if (!(user.equals(stat.getOwner()) && group.equals(stat.getGroup()))) {<a name="line.376"></a> -<span class="sourceLineNo">377</span> outputFs.setOwner(path, user, group);<a name="line.377"></a> -<span class="sourceLineNo">378</span> }<a name="line.378"></a> -<span class="sourceLineNo">379</span> } catch (IOException e) {<a name="line.379"></a> -<span class="sourceLineNo">380</span> LOG.warn("Unable to set the owner/group for file="+ stat.getPath() +": "+ e.getMessage());<a name="line.380"></a> -<span class="sourceLineNo">381</span> LOG.warn("The user/group may not exist on the destination cluster: user=" +<a name="line.381"></a> -<span class="sourceLineNo">382</span> user + " group=" + group);<a name="line.382"></a> -<span class="sourceLineNo">383</span> return false;<a name="line.383"></a> -<span class="sourceLineNo">384</span> }<a name="line.384"></a> -<span class="sourceLineNo">385</span> }<a name="line.385"></a> -<span class="sourceLineNo">386</span><a name="line.386"></a> -<span class="sourceLineNo">387</span> return true;<a name="line.387"></a> -<span class="sourceLineNo">388</span> }<a name="line.388"></a> -<span class="sourceLineNo">389</span><a name="line.389"></a> -<span class="sourceLineNo">390</span> private boolean stringIsNotEmpty(final String str) {<a name="line.390"></a> -<span class="sourceLineNo">391</span> return str != null && str.length() > 0;<a name="line.391"></a> -<span class="sourceLineNo">392</span> }<a name="line.392"></a> -<span class="sourceLineNo">393</span><a name="line.393"></a> -<span class="sourceLineNo">394</span> private void copyData(final Context context,<a name="line.394"></a> -<span class="sourceLineNo">395</span> final Path inputPath, final InputStream in,<a name="line.395"></a> -<span class="sourceLineNo">396</span> final Path outputPath, final FSDataOutputStream out,<a name="line.396"></a> -<span class="sourceLineNo">397</span> final long inputFileSize)<a name="line.397"></a> -<span class="sourceLineNo">398</span> throws IOException {<a name="line.398"></a> -<span class="sourceLineNo">399</span> final String statusMessage = "copied %s/" + StringUtils.humanReadableInt(inputFileSize) +<a name="line.399"></a> -<span class="sourceLineNo">400</span> " (%.1f%%)";<a name="line.400"></a> -<span class="sourceLineNo">401</span><a name="line.401"></a> -<span class="sourceLineNo">402</span> try {<a name="line.402"></a> -<span class="sourceLineNo">403</span> byte[] buffer = new byte[bufferSize];<a name="line.403"></a> -<span class="sourceLineNo">404</span> long totalBytesWritten = 0;<a name="line.404"></a> -<span class="sourceLineNo">405</span> int reportBytes = 0;<a name="line.405"></a> -<span class="sourceLineNo">406</span> int bytesRead;<a name="line.406"></a> -<span class="sourceLineNo">407</span><a name="line.407"></a> -<span class="sourceLineNo">408</span> long stime = System.currentTimeMillis();<a name="line.408"></a> -<span class="sourceLineNo">409</span> while ((bytesRead = in.read(buffer)) > 0) {<a name="line.409"></a> -<span class="sourceLineNo">410</span> out.write(buffer, 0, bytesRead);<a name="line.410"></a> -<span class="sourceLineNo">411</span> totalBytesWritten += bytesRead;<a name="line.411"></a> -<span class="sourceLineNo">412</span> reportBytes += bytesRead;<a name="line.412"></a> -<span class="sourceLineNo">413</span><a name="line.413"></a> -<span class="sourceLineNo">414</span> if (reportBytes >= REPORT_SIZE) {<a name="line.414"></a> -<span class="sourceLineNo">415</span> context.getCounter(Counter.BYTES_COPIED).increment(reportBytes);<a name="line.415"></a> -<span class="sourceLineNo">416</span> context.setStatus(String.format(statusMessage,<a name="line.416"></a> -<span class="sourceLineNo">417</span> StringUtils.humanReadableInt(totalBytesWritten),<a name="line.417"></a> -<span class="sourceLineNo">418</span> (totalBytesWritten/(float)inputFileSize) * 100.0f) +<a name="line.418"></a> -<span class="sourceLineNo">419</span> " from " + inputPath + " to " + outputPath);<a name="line.419"></a> -<span class="sourceLineNo">420</span> reportBytes = 0;<a name="line.420"></a> -<span class="sourceLineNo">421</span> }<a name="line.421"></a> -<span class="sourceLineNo">422</span> }<a name="line.422"></a> -<span class="sourceLineNo">423</span> long etime = System.currentTimeMillis();<a name="line.423"></a> -<span class="sourceLineNo">424</span><a name="line.424"></a> -<span class="sourceLineNo">425</span> context.getCounter(Counter.BYTES_COPIED).increment(reportBytes);<a name="line.425"></a> -<span class="sourceLineNo">426</span> context.setStatus(String.format(statusMessage,<a name="line.426"></a> -<span class="sourceLineNo">427</span> StringUtils.humanReadableInt(totalBytesWritten),<a name="line.427"></a> -<span class="sourceLineNo">428</span> (totalBytesWritten/(float)inputFileSize) * 100.0f) +<a name="line.428"></a> -<span class="sourceLineNo">429</span> " from " + inputPath + " to " + outputPath);<a name="line.429"></a> -<span class="sourceLineNo">430</span><a name="line.430"></a> -<span class="sourceLineNo">431</span> // Verify that the written size match<a name="line.431"></a> -<span class="sourceLineNo">432</span> if (totalBytesWritten != inputFileSize) {<a name="line.432"></a> -<span class="sourceLineNo">433</span> String msg = "number of bytes copied not matching copied=" + totalBytesWritten +<a name="line.433"></a> -<span class="sourceLineNo">434</span> " expected=" + inputFileSize + " for file=" + inputPath;<a name="line.434"></a> -<span class="sourceLineNo">435</span> throw new IOException(msg);<a name="line.435"></a> -<span class="sourceLineNo">436</span> }<a name="line.436"></a> -<span class="sourceLineNo">437</span><a name="line.437"></a> -<span class="sourceLineNo">438</span> LOG.info("copy completed for input=" + inputPath + " output=" + outputPath);<a name="line.438"></a> -<span class="sourceLineNo">439</span> LOG.info("size=" + totalBytesWritten +<a name="line.439"></a> -<span class="sourceLineNo">440</span> " (" + StringUtils.humanReadableInt(totalBytesWritten) + ")" +<a name="line.440"></a> -<span class="sourceLineNo">441</span> " time=" + StringUtils.formatTimeDiff(etime, stime) +<a name="line.441"></a> -<span class="sourceLineNo">442</span> String.format(" %.3fM/sec", (totalBytesWritten / ((etime - stime)/1000.0))/1048576.0));<a name="line.442"></a> -<span class="sourceLineNo">443</span> context.getCounter(Counter.FILES_COPIED).increment(1);<a name="line.443"></a> -<span class="sourceLineNo">444</span> } catch (IOException e) {<a name="line.444"></a> -<span class="sourceLineNo">445</span> LOG.error("Error copying " + inputPath + " to " + outputPath, e);<a name="line.445"></a> -<span class="sourceLineNo">446</span> context.getCounter(Counter.COPY_FAILED).increment(1);<a name="line.446"></a> -<span class="sourceLineNo">447</span> throw e;<a name="line.447"></a> -<span class="sourceLineNo">448</span> }<a name="line.448"></a> -<span class="sourceLineNo">449</span> }<a name="line.449"></a> -<span class="sourceLineNo">450</span><a name="line.450"></a> -<span class="sourceLineNo">451</span> /**<a name="line.451"></a> -<span class="sourceLineNo">452</span> * Try to open the "source" file.<a name="line.452"></a> -<span class="sourceLineNo">453</span> * Throws an IOException if the communication with the inputFs fail or<a name="line.453"></a> -<span class="sourceLineNo">454</span> * if the file is not found.<a name="line.454"></a> -<span class="sourceLineNo">455</span> */<a name="line.455"></a> -<span class="sourceLineNo">456</span> private FSDataInputStream openSourceFile(Context context, final SnapshotFileInfo fileInfo)<a name="line.456"></a> -<span class="sourceLineNo">457</span> throws IOException {<a name="line.457"></a> -<span class="sourceLineNo">458</span> try {<a name="line.458"></a> -<span class="sourceLineNo">459</span> Configuration conf = context.getConfiguration();<a name="line.459"></a> -<span class="sourceLineNo">460</span> FileLink link = null;<a name="line.460"></a> -<span class="sourceLineNo">461</span> switch (fileInfo.getType()) {<a name="line.461"></a> -<span class="sourceLineNo">462</span> case HFILE:<a name="line.462"></a> -<span class="sourceLineNo">463</span> Path inputPath = new Path(fileInfo.getHfile());<a name="line.463"></a> -<span class="sourceLineNo">464</span> link = getFileLink(inputPath, conf);<a name="line.464"></a> -<span class="sourceLineNo">465</span> break;<a name="line.465"></a> -<span class="sourceLineNo">466</span> case WAL:<a name="line.466"></a> -<span class="sourceLineNo">467</span> String serverName = fileInfo.getWalServer();<a name="line.467"></a> -<span class="sourceLineNo">468</span> String logName = fileInfo.getWalName();<a name="line.468"></a> -<span class="sourceLineNo">469</span> link = new WALLink(inputRoot, serverName, logName);<a name="line.469"></a> -<span class="sourceLineNo">470</span> break;<a name="line.470"></a> -<span class="sourceLineNo">471</span> default:<a name="line.471"></a> -<span class="sourceLineNo">472</span> throw new IOException("Invalid File Type: " + fileInfo.getType().toString());<a name="line.472"></a> -<span class="sourceLineNo">473</span> }<a name="line.473"></a> -<span class="sourceLineNo">474</span> return link.open(inputFs);<a name="line.474"></a> -<span class="sourceLineNo">475</span> } catch (IOException e) {<a name="line.475"></a> -<span class="sourceLineNo">476</span> context.getCounter(Counter.MISSING_FILES).increment(1);<a name="line.476"></a> -<span class="sourceLineNo">477</span> LOG.error("Unable to open source file=" + fileInfo.toString(), e);<a name="line.477"></a> -<span class="sourceLineNo">478</span> throw e;<a name="line.478"></a> -<span class="sourceLineNo">479</span> }<a name="line.479"></a> -<span class="sourceLineNo">480</span> }<a name="line.480"></a> -<span class="sourceLineNo">481</span><a name="line.481"></a> -<span class="sourceLineNo">482</span> private FileStatus getSourceFileStatus(Context context, final SnapshotFileInfo fileInfo)<a name="line.482"></a> -<span class="sourceLineNo">483</span> throws IOException {<a name="line.483"></a> -<span class="sourceLineNo">484</span> try {<a name="line.484"></a> -<span class="sourceLineNo">485</span> Configuration conf = context.getConfiguration();<a name="line.485"></a> -<span class="sourceLineNo">486</span> FileLink link = null;<a name="line.486"></a> -<span class="sourceLineNo">487</span> switch (fileInfo.getType()) {<a name="line.487"></a> -<span class="sourceLineNo">488</span> case HFILE:<a name="line.488"></a> -<span class="sourceLineNo">489</span> Path inputPath = new Path(fileInfo.getHfile());<a name="line.489"></a> -<span class="sourceLineNo">490</span> link = getFileLink(inputPath, conf);<a name="line.490"></a> -<span class="sourceLineNo">491</span> break;<a name="line.491"></a> -<span class="sourceLineNo">492</span> case WAL:<a name="line.492"></a> -<span class="sourceLineNo">493</span> link = new WALLink(inputRoot, fileInfo.getWalServer(), fileInfo.getWalName());<a name="line.493"></a> -<span class="sourceLineNo">494</span> break;<a name="line.494"></a> -<span class="sourceLineNo">495</span> default:<a name="line.495"></a> -<span class="sourceLineNo">496</span> throw new IOException("Invalid File Type: " + fileInfo.getType().toString());<a name="line.496"></a> -<span class="sourceLineNo">497</span> }<a name="line.497"></a> -<span class="sourceLineNo">498</span> return link.getFileStatus(inputFs);<a name="line.498"></a> -<span class="sourceLineNo">499</span> } catch (FileNotFoundException e) {<a name="line.499"></a> -<span class="sourceLineNo">500</span> context.getCounter(Counter.MISSING_FILES).increment(1);<a name="line.500"></a> -<span class="sourceLineNo">501</span> LOG.error("Unable to get the status for source file=" + fileInfo.toString(), e);<a name="line.501"></a> -<span class="sourceLineNo">502</span> throw e;<a name="line.502"></a> -<span class="sourceLineNo">503</span> } catch (IOException e) {<a name="line.503"></a> -<span class="sourceLineNo">504</span> LOG.error("Unable to get the status for source file=" + fileInfo.toString(), e);<a name="line.504"></a> -<span class="sourceLineNo">505</span> throw e;<a name="line.505"></a> -<span class="sourceLineNo">506</span> }<a name="line.506"></a> -<span class="sourceLineNo">507</span> }<a name="line.507"></a> -<span class="sourceLineNo">508</span><a name="line.508"></a> -<span class="sourceLineNo">509</span> private FileLink getFileLink(Path path, Configuration conf) throws IOException{<a name="line.509"></a> -<span class="sourceLineNo">510</span> String regionName = HFileLink.getReferencedRegionName(path.getName());<a name="line.510"></a> -<span class="sourceLineNo">511</span> TableName tableName = HFileLink.getReferencedTableName(path.getName());<a name="line.511"></a> -<span class="sourceLineNo">512</span> if(MobUtils.getMobRegionInfo(tableName).getEncodedName().equals(regionName)) {<a name="line.512"></a> -<span class="sourceLineNo">513</span> return HFileLink.buildFromHFileLinkPattern(MobUtils.getQualifiedMobRootDir(conf),<a name="line.513"></a> -<span class="sourceLineNo">514</span> HFileArchiveUtil.getArchivePath(conf), path);<a name="line.514"></a> -<span class="sourceLineNo">515</span> }<a name="line.515"></a> -<span class="sourceLineNo">516</span> return HFileLink.buildFromHFileLinkPattern(inputRoot, inputArchive, path);<a name="line.516"></a> -<span class="sourceLineNo">517</span> }<a name="line.517"></a> -<span class="sourceLineNo">518</span><a name="line.518"></a> -<span class="sourceLineNo">519</span> private FileChecksum getFileChecksum(final FileSystem fs, final Path path) {<a name="line.519"></a> -<span class="sourceLineNo">520</span> try {<a name="line.520"></a> -<span class="sourceLineNo">521</span> return fs.getFileChecksum(path);<a name="line.521"></a> -<span class="sourceLineNo">522</span> } catch (IOException e) {<a name="line.522"></a> -<span class="sourceLineNo">523</span> LOG.warn("Unable to get checksum for file=" + path, e);<a name="line.523"></a> -<span class="sourceLineNo">524</span> return null;<a name="line.524"></a> -<span class="sourceLineNo">525</span> }<a name="line.525"></a> -<span class="sourceLineNo">526</span> }<a name="line.526"></a> -<span class="sourceLineNo">527</span><a name="line.527"></a> -<span class="sourceLineNo">528</span> /**<a name="line.528"></a> -<span class="sourceLineNo">529</span> * Check if the two files are equal by looking at the file length,<a name="line.529"></a> -<span class="sourceLineNo">530</span> * and at the checksum (if user has specified the verifyChecksum flag).<a name="line.530"></a> -<span class="sourceLineNo">531</span> */<a name="line.531"></a> -<span class="sourceLineNo">532</span> private boolean sameFile(final FileStatus inputStat, final FileStatus outputStat) {<a name="line.532"></a> -<span class="sourceLineNo">533</span> // Not matching length<a name="line.533"></a> -<span class="sourceLineNo">534</span> if (inputStat.getLen() != outputStat.getLen()) return false;<a name="line.534"></a> -<span class="sourceLineNo">535</span><a name="line.535"></a> -<span class="sourceLineNo">536</span> // Mark files as equals, since user asked for no checksum verification<a name="line.536"></a> -<span class="sourceLineNo">537</span> if (!verifyChecksum) return true;<a name="line.537"></a> -<span class="sourceLineNo">538</span><a name="line.538"></a> -<span class="sourceLineNo">539</span> // If checksums are not available, files are not the same.<a name="line.539"></a> -<span class="sourceLineNo">540</span> FileChecksum inChecksum = getFileChecksum(inputFs, inputStat.getPath());<a name="line.540"></a> -<span class="sourceLineNo">541</span> if (inChecksum == null) return false;<a name="line.541"></a> -<span class="sourceLineNo">542</span><a name="line.542"></a> -<span class="sourceLineNo">543</span> FileChecksum outChecksum = getFileChecksum(outputFs, outputStat.getPath());<a name="line.543"></a> -<span class="sourceLineNo">544</span> if (outChecksum == null) return false;<a name="line.544"></a> -<span class="sourceLineNo">545</span><a name="line.545"></a> -<span class="sourceLineNo">546</span> return inChecksum.equals(outChecksum);<a name="line.546"></a> -<span class="sourceLineNo">547</span> }<a name="line.547"></a> -<span class="sourceLineNo">548</span> }<a name="line.548"></a> -<span class="sourceLineNo">549</span><a name="line.549"></a> -<span class="sourceLineNo">550</span> // ==========================================================================<a name="line.550"></a> -<span class="sourceLineNo">551</span> // Input Format<a name="line.551"></a> -<span class="sourceLineNo">552</span> // ==========================================================================<a name="line.552"></a> -<span class="sourceLineNo">553</span><a name="line.553"></a> -<span class="sourceLineNo">554</span> /**<a name="line.554"></a> -<span class="sourceLineNo">555</span> * Extract the list of files (HFiles/WALs) to copy using Map-Reduce.<a name="line.555"></a> -<span class="sourceLineNo">556</span> * @return list of files referenced by the snapshot (pair of path and size)<a name="line.556"></a> -<span class="sourceLineNo">557</span> */<a name="line.557"></a> -<span class="sourceLineNo">558</span> private static List<Pair<SnapshotFileInfo, Long>> getSnapshotFiles(final Configuration conf,<a name="line.558"></a> -<span class="sourceLineNo">559</span> final FileSystem fs, final Path snapshotDir) throws IOException {<a name="line.559"></a> -<span class="sourceLineNo">560</span> SnapshotDescription snapshotDesc = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);<a name="line.560"></a> -<span class="sourceLineNo">561</span><a name="line.561"></a> -<span class="sourceLineNo">562</span> final List<Pair<SnapshotFileInfo, Long>> files = new ArrayList<>();<a name="line.562"></a> -<span class="sourceLineNo">563</span> final TableName table = TableName.valueOf(snapshotDesc.getTable());<a name="line.563"></a> -<span class="sourceLineNo">564</span><a name="line.564"></a> -<span class="sourceLineNo">565</span> // Get snapshot files<a name="line.565"></a> -<span class="sourceLineNo">566</span> LOG.info("Loading Snapshot '" + snapshotDesc.getName() + "' hfile list");<a name="line.566"></a> -<span class="sourceLineNo">567</span> SnapshotReferenceUtil.visitReferencedFiles(conf, fs, snapshotDir, snapshotDesc,<a name="line.567"></a> -<span class="sourceLineNo">568</span> new SnapshotReferenceUtil.SnapshotVisitor() {<a name="line.568"></a> -<span class="sourceLineNo">569</span> @Override<a name="line.569"></a> -<span class="sourceLineNo">570</span> public void storeFile(final RegionInfo regionInfo, final String family,<a name="line.570"></a> -<span class="sourceLineNo">571</span> final SnapshotRegionManifest.StoreFile storeFile) throws IOException {<a name="line.571"></a> -<span class="sourceLineNo">572</span> // for storeFile.hasReference() case, copied as part of the manifest<a name="line.572"></a> -<span class="sourceLineNo">573</span> if (!storeFile.hasReference()) {<a name="line.573"></a> -<span class="sourceLineNo">574</span> String region = regionInfo.getEncodedName();<a name="line.574"></a> -<span class="sourceLineNo">575</span> String hfile = storeFile.getName();<a name="line.575"></a> -<span class="sourceLineNo">576</span> Path path = HFileLink.createPath(table, region, family, hfile);<a name="line.576"></a> -<span class="sourceLineNo">577</span><a name="line.577"></a> -<span class="sourceLineNo">578</span> SnapshotFileInfo fileInfo = SnapshotFileInfo.newBuilder()<a name="line.578"></a> -<span class="sourceLineNo">579</span> .setType(SnapshotFileInfo.Type.HFILE)<a name="line.579"></a> -<span class="sourceLineNo">580</span> .setHfile(path.toString())<a name="line.580"></a> -<span class="sourceLineNo">581</span> .build();<a name="line.581"></a> -<span class="sourceLineNo">582</span><a name="line.582"></a> -<span class="sourceLineNo">583</span> long size;<a name="line.583"></a> -<span class="sourceLineNo">584</span> if (storeFile.hasFileSize()) {<a name="line.584"></a> -<span class="sourceLineNo">585</span> size = storeFile.getFileSize();<a name="line.585"></a> -<span class="sourceLineNo">586</span> } else {<a name="line.586"></a> -<span class="sourceLineNo">587</span> size = HFileLink.buildFromHFileLinkPattern(conf, path).getFileStatus(fs).getLen();<a name="line.587"></a> -<span class="sourceLineNo">588</span> }<a name="line.588"></a> -<span class="sourceLineNo">589</span> files.add(new Pair<>(fileInfo, size));<a name="line.589"></a> -<span class="sourceLineNo">590</span> }<a name="line.590"></a> -<span class="sourceLineNo">591</span> }<a name="line.591"></a> -<span class="sourceLineNo">592</span> });<a name="line.592"></a> -<span class="sourceLineNo">593</span><a name="line.593"></a> -<span class="sourceLineNo">594</span> return files;<a name="line.594"></a> -<span class="sourceLineNo">595</span> }<a name="line.595"></a> -<span class="sourceLineNo">596</span><a name="line.596"></a> -<span class="sourceLineNo">597</span> /**<a name="line.597"></a> -<span class="sourceLineNo">598</span> * Given a list of file paths and sizes, create around ngroups in as balanced a way as possible.<a name="line.598"></a> -<span class="sourceLineNo">599</span> * The groups created will have similar amounts of bytes.<a name="line.599"></a> -<span class="sourceLineNo">600</span> * <p><a name="line.600"></a> -<span class="sourceLineNo">601</span> * The algorithm used is pretty straightforward; the file list is sorted by size,<a name="line.601"></a> -<span class="sourceLineNo">602</span> * and then each group fetch the bigger file available, iterating through groups<a name="line.602"></a> -<span class="sourceLineNo">603</span> * alternating the direction.<a name="line.603"></a> -<span class="sourceLineNo">604</span> */<a name="line.604"></a> -<span class="sourceLineNo">605</span> static List<List<Pair<SnapshotFileInfo, Long>>> getBalancedSplits(<a name="line.605"></a> -<span class="sourceLineNo">606</span> final List<Pair<SnapshotFileInfo, Long>> files, final int ngroups) {<a name="line.606"></a> -<span class="sourceLineNo">607</span> // Sort files by size, from small to big<a name="line.607"></a> -<span class="sourceLineNo">608</span> Collections.sort(files, new Comparator<Pair<SnapshotFileInfo, Long>>() {<a name="line.608"></a> -<span class="sourceLineNo">609</span> public int compare(Pair<SnapshotFileInfo, Long> a, Pair<SnapshotFileInfo, Long> b) {<a name="line.609"></a> -<span class="sourceLineNo">610</span> long r = a.getSecond() - b.getSecond();<a name="line.610"></a> -<span class="sourceLineNo">611</span> return (r < 0) ? -1 : ((r > 0) ? 1 : 0);<a name="line.611"></a> -<span class="sourceLineNo">612</span> }<a name="line.612"></a> -<span class="sourceLineNo">613</span> });<a name="line.613"></a> -<span class="sourceLineNo">614</span><a name="line.614"></a> -<span class="sourceLineNo">615</span> // create balanced groups<a name="line.615"></a> -<span class="sourceLineNo">616</span> List<List<Pair<SnapshotFileInfo, Long>>> fileGroups = new LinkedList<>();<a name="line.616"></a> -<span class="sourceLineNo">617</span> long[] sizeGroups = new long[ngroups];<a name="line.617"></a> -<span class="sourceLineNo">618</span> int hi = files.size() - 1;<a name="line.618"></a> -<span class="sourceLineNo">619</span> int lo = 0;<a name="line.619"></a> -<span class="sourceLineNo">620</span><a name="line.620"></a> -<span class="sourceLineNo">621</span> List<Pair<SnapshotFileInfo, Long>> group;<a name="line.621"></a> -<span class="sourceLineNo">622</span> int dir = 1;<a name="line.622"></a> -<span class="sourceLineNo">623</span> int g = 0;<a name="line.623"></a> -<span class="sourceLineNo">624</span><a name="line.624"></a> -<span class="sourceLineNo">625</span> while (hi >= lo) {<a name="line.625"></a> -<span class="sourceLineNo">626</span> if (g == fileGroups.size()) {<a name="line.626"></a> -<span class="sourceLineNo">627</span> group = new LinkedList<>();<a name="line.627"></a> -<span class="sourceLineNo">628</span> fileGroups.add(group);<a name="line.628"></a> -<span class="sourceLineNo">629</span> } else {<a name="line.629"></a> -<span class="sourceLineNo">630</span> group = fileGroups.get(g);<a name="line.630"></a> -<span class="sourceLineNo">631</span> }<a name="line.631"></a> -<span class="sourceLineNo">632</span><a name="line.632"></a> -<span class="sourceLineNo">633</span> Pair<SnapshotFileInfo, Long> fileInfo = files.get(hi--);<a name="line.633"></a> -<span class="sourceLineNo">634</span><a name="line.634"></a> -<span class="sourceLineNo">635</span> // add the hi one<a name="line.635"></a> -<span class="sourceLineNo">636</span> sizeGroups[g] += fileInfo.getSecond();<a name="line.636"></a> -<span class="sourceLineNo">637</span> group.add(fileInfo);<a name="line.637"></a> -<span class="sourceLineNo">638</span><a name="line.638"></a> -<span class="sourceLineNo">639</span> // change direction when at the end or the beginning<a name="line.639"></a> -<span class="sourceLineNo">640</span> g += dir;<a name="line.640"></a> -<span class="sourceLineNo">641</span> if (g == ngroups) {<a name="line.641"></a> -<span class="sourceLineNo">642</span> dir = -1;<a name="line.642"></a> -<span class="sourceLineNo">643</span> g = ngroups - 1;<a name="line.643"></a> -<span class="sourceLineNo">644</span> } else if (g < 0) {<a name="line.644"></a> -<span class="sourceLineNo">645</span> dir = 1;<a name="line.645"></a> -<span class="sourceLineNo">646</span> g = 0;<a name="line.646"></a> -<span class="sourceLineNo">647</span> }<a name="line.647"></a> -<span class="sourceLineNo">648</span> }<a name="line.648"></a> -<span class="sourceLineNo">649</span><a name="line.649"></a> -<span class="sourceLineNo">650</span> if (LOG.isDebugEnabled()) {<a name="line.650"></a> -<span class="sourceLineNo">651</span> for (int i = 0; i < sizeGroups.length; ++i) {<a name="line.651"></a> -<span class="sourceLineNo">652</span> LOG.debug("export split=" + i + " size=" + StringUtils.humanReadableInt(sizeGroups[i]));<a name="line.652"></a> -<span class="sourceLineNo">653</span> }<a name="line.653"></a> -<span class="sourceLineNo">654</span> }<a name="line.654"></a> -<span class="sourceLineNo">655</span><a name="line.655"></a> -<span class="sourceLineNo">656</span> return fileGroups;<a name="line.656"></a> -<span class="sourceLineNo">657</span> }<a name="line.657"></a> -<span class="sourceLineNo">658</span><a name="line.658"></a> -<span class="sourceLineNo">659</span> private static class ExportSnapshotInputFormat extends InputFormat<BytesWritable, NullWritable> {<a name="line.659"></a> -<span class="sourceLineNo">660</span> @Override<a name="line.660"></a> -<span class="sourceLineNo">661</span> public RecordReader<BytesWritable, NullWritable> createRecordReader(InputSplit split,<a name="line.661"></a> -<span class="sourceLineNo">662</span> TaskAttemptContext tac) throws IOException, InterruptedException {<a name="line.662"></a> -<span class="sourceLineNo">663</span> return new ExportSnapshotRecordReader(((ExportSnapshotInputSplit)split).getSplitKeys());<a name="line.663"></a> -<span class="sourceLineNo">664</span> }<a name="line.664"></a> -<span class="sourceLineNo">665</span><a name="line.665"></a> -<span class="sourceLineNo">666</span> @Override<a name="line.666"></a> -<span class="sourceLineNo">667</span> public List<InputSplit> getSplits(JobContext context) throws IOException, InterruptedException {<a name="line.667"></a> -<span class="sourceLineNo">668</span> Configuration conf = context.getConfiguration();<a name="line.668"></a> -<span class="sourceLineNo">669</span> Path snapshotDir = new Path(conf.get(CONF_SNAPSHOT_DIR));<a name="line.669"></a> -<span class="sourceLineNo">670</span> FileSystem fs = FileSystem.get(snapshotDir.toUri(), conf);<a name="line.670"></a> -<span class="sourceLineNo">671</span><a name="line.671"></a> -<span class="sourceLineNo">672</span> List<Pair<SnapshotFileInfo, Long>> snapshotFiles = getSnapshotFiles(conf, fs, snapshotDir);<a name="line.672"></a> -<span class="sourceLineNo">673</span> int mappers = conf.getInt(CONF_NUM_SPLITS, 0);<a name="line.673"></a> -<span class="sourceLineNo">674</span> if (mappers == 0 && snapshotFiles.size() > 0) {<a name="line.674"></a> -<span class="sourceLineNo">675</span> mappers = 1 + (snapshotFiles.size() / conf.getInt(CONF_MAP_GROUP, 10));<a name="line.675"></a> -<span class="sourceLineNo">676</span> mappers = Math.min(mappers, snapshotFiles.size());<a name="line.676"></a> -<span class="sourceLineNo">677</span> conf.setInt(CONF_NUM_SPLITS, mappers);<a name="line.677"></a> -<span class="sourceLineNo">678</span> conf.setInt(MR_NUM_MAPS, mappers);<a name="line.678"></a> -<span class="sourceLineNo">679</span> }<a name="line.679"></a> -<span class="sourceLineNo">680</span><a name="line.680"></a> -<span class="sourceLineNo">681</span> List<List<Pair<SnapshotFileInfo, Long>>> groups = getBalancedSplits(snapshotFiles, mappers);<a name="line.681"></a> -<span class="sourceLineNo">682</span> List<InputSplit> splits = new ArrayList(groups.size());<a name="line.682"></a> -<span class="sourceLineNo">683</span> for (List<Pair<SnapshotFileInfo, Long>> files: groups) {<a name="line.683"></a> -<span class="sourceLineNo">684</span> splits.add(new ExportSnapshotInputSplit(files));<a name="line.684"></a> -<span class="sourceLineNo">685</span> }<a name="line.685"></a> -<span class="sourceLineNo">686</span> return splits;<a name="line.686"></a> -<span class="sourceLineNo">687</span> }<a name="line.687"></a> -<span class="sourceLineNo">688</span><a name="line.688"></a> -<span class="sourceLineNo">689</span> private static class ExportSnapshotInputSplit extends InputSplit implements Writable {<a name="line.689"></a> -<span class="sourceLineNo">690</span> private List<Pair<BytesWritable, Long>> files;<a name="line.690"></a> -<span class="sourceLineNo">691</span> private long length;<a name="line.691"></a> -<span class="sourceLineNo">692</span><a name="line.692"></a> -<span class="sourceLineNo">693</span> public ExportSnapshotInputSplit() {<a name="line.693"></a> -<span class="sourceLineNo">694</span> this.files = null;<a name="line.694"></a> -<span class="sourceLineNo">695</span> }<a name="line.695"></a> -<span class="sourceLineNo">696</span><a name="line.696"></a> -<span class="sourceLineNo">697</span> public ExportSnapshotInputSplit(final List<Pair<SnapshotFileInfo, Long>> snapshotFiles) {<a name="line.697"></a> -<span class="sourceLineNo">698</span> this.files = new ArrayList(snapshotFiles.size());<a name="line.698"></a> -<span class="sourceLineNo">699</span> for (Pair<SnapshotFileInfo, Long> fileInfo: snapshotFiles) {<a name="line.699"></a> -<span class="sourceLineNo">700</span> this.files.add(new Pair<>(<a name="line.700"></a> -<span class="sourceLineNo">701</span> new BytesWritable(fileInfo.getFirst().toByteArray()), fileInfo.getSecond()));<a name="line.701"></a> -<span class="sourceLineNo">702</span> this.length += fileInfo.getSecond();<a name="line.702"></a> -<span class="sourceLineNo">703</span> }<a name="line.703"></a> -<span class="sourceLineNo">704</span> }<a name="line.704"></a> -<span class="sourceLineNo">705</span><a name="line.705"></a> -<span class="sourceLineNo">706</span> private List<Pair<BytesWritable, Long>> getSplitKeys() {<a name="line.706"></a> -<span class="sourceLineNo">707</span> return files;<a name="line.707"></a> -<span class="sourceLineNo">708</span> }<a name="line.708"></a> -<span class="sourceLineNo">709</span><a name="line.709"></a> -<span class="sourceLineNo">710</span> @Override<a name="line.710"></a> -<span class="sourceLineNo">711</span> public long getLength() throws IOException, InterruptedException {<a name="line.711"></a> -<span class="sourceLineNo">712</span> return length;<a name="line.712"></a> -<span class="sourceLineNo">713</span> }<a name="line.713"></a> -<span class="sourceLineNo">714</span><a name="line.714"></a> -<span class="sourceLineNo">715</span> @Override<a name="line.715"></a> -<span class="sourceLineNo">716</span> public String[] getLocations() throws IOException, InterruptedException {<a name="line.716"></a> -<span class="sourceLineNo">717</span> return new String[] {};<a name="line.717"></a> -<span class="sourceLineNo">718</span> }<a name="line.718"></a> -<span class="sourceLineNo">719</span><a name="line.719"></a> -<span class="sourceLineNo">720</span> @Override<a name="line.720"></a> -<span class="sourceLineNo">721</span> public void readFields(DataInput in) throws IOException {<a name="line.721"></a> -<span class="sourceLineNo">722</span> int count = in.readInt();<a name="line.722"></a> -<span class="sourceLineNo">723</span> files = new ArrayList<>(count);<a name="line.723"></a> -<span class="sourceLineNo">724</span> length = 0;<a name="line.724"></a> -<span class="sourceLineNo">725</span> for (int i = 0; i < count; ++i) {<a name="line.725"></a> -<span class="sourceLineNo">726</span> BytesWritable fileInfo = new BytesWritable();<a name="line.726"></a> -<span class="sourceLineNo">727</span> fileInfo.readFields(in);<a name="line.727"></a> -<span class="sourceLineNo">728</span> long size = in.readLong();<a name="line.728"></a> -<span class="sourceLineNo">729</span> files.add(new Pair<>(fileInfo, size));<a name="line.729"></a> -<span class="sourceLineNo">730</span> length += size;<a name="line.730"></a> -<span class="sourceLineNo">731</span> }<a name="line.731"></a> -<span class="sourceLineNo">732</span> }<a name="line.732"></a> -<span class="sourceLineNo">733</span><a name="line.733"></a> -<span class="sourceLineNo">734</span> @Override<a name="line.734"></a> -<span class="sourceLineNo">735</span> public void write(DataOutput out) throws IOException {<a name="line.735"></a> -<span class="sourceLineNo">736</span> out.writeInt(files.size());<a name="line.736"></a> -<span class="sourceLineNo">737</span> for (final Pair<BytesWritable, Long> fileInfo: files) {<a name="line.737"></a> -<span class="sourceLineNo">738</span> fileInfo.getFirst().write(out);<a name="line.738"></a> -<span class="sourceLineNo">739</span> out.writeLong(fileInfo.getSecond());<a name="line.739"></a> -<span class="sourceLineNo">740</span> }<a name="line.740"></a> -<span class="sourceLineNo">741</span> }<a name="line.741"></a> -<span class="sourceLineNo">742</span> }<a name="line.742"></a> -<span class="sourceLineNo">743</span><a name="line.743"></a> -<span class="sourceLineNo">744</span> private static class ExportSnapshotRecordReader<a name="line.744"></a> -<span class="sourceLineNo">745</span> extends RecordReader<BytesWritable, NullWritable> {<a name="line.745"></a> -<span class="sourceLineNo">746</span> private final List<Pair<BytesWritable, Long>> files;<a name="line.746"></a> -<span class="sourceLineNo">747</span> private long totalSize = 0;<a name="line.747"></a> -<span class="sourceLineNo">748</span> private long procSize = 0;<a name="line.748"></a> -<span class="sourceLineNo">749</span> private int index = -1;<a name="line.749"></a> -<span class="sourceLineNo">750</span><a name="line.750"></a> -<span class="sourceLineNo">751</span> ExportSnapshotRecordReader(final List<Pair<BytesWritable, Long>> files) {<a name="line.751"></a> -<span class="sourceLineNo">752</span> this.files = files;<a name="line.752"></a> -<span class="sourceLineNo">753</span> for (Pair<BytesWritable, Long> fileInfo: files) {<a name="line.753"></a> -<span class="sourceLineNo">754</span> totalSize += fileInfo.getSecond();<a name="line.754"></a> -<span class="sourceLineNo">755</span> }<a name="line.755"></a> -<span class="sourceLineNo">756</span> }<a name="line.756"></a> -<span class="sourceLineNo">757</span><a name="line.757"></a> -<span class="sourceLineNo">758</span> @Override<a name="line.758"></a> -<span class="sourceLineNo">759</span> public void close() { }<a name="line.759"></a> -<span class="sourceLineNo">760</span><a name="line.760"></a> -<span class="sourceLineNo">761</span> @Override<a name="line.761"></a> -<span class="sourceLineNo">762</span> public BytesWritable getCurrentKey() { return files.get(index).getFirst(); }<a name="line.762"></a> -<span class="sourceLineNo">763</span><a name="line.763"></a> -<span class="sourceLineNo">764</span> @Override<a name="line.764"></a> -<span class="sourceLineNo">765</span> public NullWritable getCurrentValue() { return NullWritable.get(); }<a name="line.765"></a> -<span class="sourceLineNo">766</span><a name="line.766"></a> -<span class="sourceLineNo">767</span> @Override<a name="line.767"></a> -<span class="sourceLineNo">768</span> public float getProgress() { return (float)procSize / totalSize; }<a name="line.768"></a> -<span class="sourceLineNo">769</span><a name="line.769"></a> -<span class="sourceLineNo">770</span> @Override<a name="line.770"></a> -<span class="sourceLineNo">771</span> public void initialize(InputSplit split, TaskAttemptContext tac) { }<a name="line.771"></a> -<span class="sourceLineNo">772</span><a name="line.772"></a> -<span class="sourceLineNo">773</span> @Override<a name="line.773"></a> -<span class="sourceLineNo">774</span> public boolean nextKeyValue() {<a name="line.774"></a> -<span class="sourceLineNo">775</span> if (index >= 0) {<a name="line.775"></a> -<span class="sourceLineNo">776</span> procSize += files.get(index).getSecond();<a name="line.776"></a> -<span class="sourceLineNo">777</span> }<a name="line.777"></a> -<span class="sourceLineNo">778</span> return(++index < files.size());<a name="line.778"></a> -<span class="sourceLineNo">779</span> }<a name="line.779"></a> -<span class="sourceLineNo">780</span> }<a name="line.780"></a> -<span class="sourceLineNo">781</span> }<a name="line.781"></a> -<span class="sourceLineNo">782</span><a name="line.782"></a> -<span class="sourceLineNo">783</span> // ==========================================================================<a name="line.783"></a> -<span class="sourceLineNo">784</span> // Tool<a name="line.784"></a> -<span class="sourceLineNo">785</span> // ==========================================================================<a name="line.785"></a> -<span class="sourceLineNo">786</span><a name="line.786"></a> -<span class="sourceLineNo">787</span> /**<a name="line.787"></a> -<span class="sourceLineNo">788</span> * Run Map-Reduce Job to perform the files copy.<a name="line.788"></a> -<span class="sourceLineNo">789</span> */<a name="line.789"></a> -<span class="sourceLineNo">790</span> private void runCopyJob(final Path inputRoot, final Path outputRoot,<a name="line.790"></a> -<span class="sourceLineNo">791</span> final String snapshotName, final Path snapshotDir, final boolean verifyChecksum,<a name="line.791"></a> -<span class="sourceLineNo">792</span> final String filesUser, final String filesGroup, final int filesMode,<a name="line.792"></a> -<span class="sourceLineNo">793</span> final int mappers, final int bandwidthMB)<a name="line.793"></a> -<span class="sourceLineNo">794</span> throws IOException, InterruptedException, ClassNotFoundException {<a name="line.794"></a> -<span class="sourceLineNo">795</span> Configuration conf = getConf();<a name="line.795"></a> -<span class="sourceLineNo">796</span> if (filesGroup != null) conf.set(CONF_FILES_GROUP, filesGroup);<a name="line.796"></a> -<span class="sourceLineNo">797</span> if (filesUser != null) conf.set(CONF_FILES_USER, filesUser);<a name="line.797"></a> -<span class="sourceLineNo">798</span> if (mappers > 0) {<a name="line.798"></a> -<span class="sourceLineNo">799</span> conf.setInt(CONF_NUM_SPLITS, mappers);<a name="line.799"></a> -<span class="sourceLineNo">800</span> conf.setInt(MR_NUM_MAPS, mappers);<a name="line.800"></a> -<span class="sourceLineNo">801</span> }<a name="line.801"></a> -<span class="sourceLineNo">802</span> conf.setInt(CONF_FILES_MODE, filesMode);<a name="line.802"></a> -<span class="sourceLineNo">803</span> conf.setBoolean(CONF_CHECKSUM_VERIFY, verifyChecksum);<a name="line.803"></a> -<span class="sourceLineNo">804</span> conf.set(CONF_OUTPUT_ROOT, outputRoot.toString());<a name="line.804"></a> -<span class="sourceLineNo">805</span> conf.set(CONF_INPUT_ROOT, inputRoot.toString());<a name="line.805"></a> -<span class="sourceLineNo">806</span> conf.setInt(CONF_BANDWIDTH_MB, bandwidthMB);<a name="line.806"></a> -<span class="sourceLineNo">807</span> conf.set(CONF_SNAPSHOT_NAME, snapshotName);<a name="line.807"></a> -<span class="sourceLineNo">808</span> conf.set(CONF_SNAPSHOT_DIR, snapshotDir.toString());<a name="line.808"></a> -<span class="sourceLineNo">809</span><a name="line.809"></a> -<span class="sourceLineNo">810</span> Job job = new Job(conf);<a name="line.810"></a> -<span class="sourceLineNo">811</span> job.setJobName("ExportSnapshot-" + snapshotName);<a name="line.811"></a> -<span class="sourceLineNo">812</span> job.setJarByClass(ExportSnapshot.class);<a name="line.812"></a> -<span class="sourceLineNo">813</span> TableMapReduceUtil.addDependencyJars(job);<a name="line.813"></a> -<span class="sourceLineNo">814</span> job.setMapperClass(ExportMapper.class);<a name="line.814"></a> -<span class="sourceLineNo">815</span> job.setInputFormatClass(ExportSnapshotInputFormat.class);<a name="line.815"></a> -<span class="sourceLineNo">816</span> job.setOutputFormatClass(NullOutputFormat.class);<a name="line.816"></a> -<span class="sourceLineNo">817</span> job.setMapSpeculativeExecution(false);<a name="line.817"></a> -<span class="sourceLineNo">818</span> job.setNumReduceTasks(0);<a name="line.818"></a> -<span class="sourceLineNo">819</span><a name="line.819"></a> -<span class="sourceLineNo">820</span> // Acquire the delegation Tokens<a name="line.820"></a> -<span class="sourceLineNo">821</span> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);<a name="line.821"></a> -<span class="sourceLineNo">822</span> TokenCache.obtainTokensForNamenodes(job.getCredentials(),<a name="line.822"></a> -<span class="sourceLineNo">823</span> new Path[] { inputRoot }, srcConf);<a name="line.823"></a> -<span class="sourceLineNo">824</span> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);<a name="line.824"></a> -<span class="sourceLineNo">825</span> TokenCache.obtainTokensForNamenodes(job.getCredentials(),<a name="line.825"></a> -<span class="sourceLineNo">826</span> new Path[] { outputRoot }, destConf);<a name="line.826"></a> -<span class="sourceLineNo">827</span><a name="line.827"></a> -<span class="sourceLineNo">828</span> // Run the MR Job<a name="line.828"></a> -<span class="sourceLineNo">829</span> if (!job.waitForCompletion(true)) {<a name="line.829"></a> -<span class="sourceLineNo">830</span> throw new ExportSnapshotException(job.getStatus().getFailureInfo());<a name="line.830"></a> -<span class="sourceLineNo">831</span> }<a name="line.831"></a> -<span class="sourceLineNo">832</span> }<a name="line.832"></a> -<span class="sourceLineNo">833</span><a name="line.833"></a> -<span class="sourceLineNo">834</span> private void verifySnapshot(final Configuration baseConf,<a name="line.834"></a> -<span class="sourceLineNo">835</span> final FileSystem fs, final Path rootDir, final Path snapshotDir) throws IOException {<a name="line.835"></a> -<span class="sourceLineNo">836</span> // Update the conf with the current root dir, since may be a different cluster<a name="line.836"></a> -<span class="sourceLineNo">837</span> Configuration conf = new Configuration(baseConf);<a name="line.837"></a> -<span class="sourceLineNo">838</span> FSUtils.setRootDir(conf, rootDir);<a name="line.838"></a> -<span class="sourceLineNo">839</span> FSUtils.setFsDefault(conf, FSUtils.getRootDir(conf));<a name="line.839"></a> -<span class="sourceLineNo">840</span> SnapshotDescription snapshotDesc = SnapshotDescriptionUtils.readSnapshotInfo(fs, snapshotDir);<a name="line.840"></a> -<span class="sourceLineNo">841</span> SnapshotReferenceUtil.verifySnapshot(conf, fs, snapshotDir, snapshotDesc);<a name="line.841"></a> -<span class="sourceLineNo">842</span> }<a name="line.842"></a> -<span class="sourceLineNo">843</span><a name="line.843"></a> -<span class="sourceLineNo">844</span> /**<a name="line.844"></a> -<span class="sourceLineNo">845</span> * Set path ownership.<a name="line.845"></a> -<span class="sourceLineNo">846</span> */<a name="line.846"></a> -<span class="sourceLineNo">847</span> private void setOwner(final FileSystem fs, final Path path, final String user,<a name="line.847"></a> -<span class="sourceLineNo">848</span> final String group, final boolean recursive) throws IOException {<a name="line.848"></a> -<span class="sourceLineNo">849</span> if (user != null || group != null) {<a name="line.849"></a> -<span class="sourceLineNo">850</span> if (recursive && fs.isDirectory(path)) {<a name="line.850"></a> -<span class="sourceLineNo">851</span> for (FileStatus child : fs.listStatus(path)) {<a name="line.851"></a> -<span class="sourceLineNo">852</span> setOwner(fs, child.getPath(), user, group, recursive);<a name="line.852"></a> -<span class="sourceLineNo">853</span> }<a name="line.853"></a> -<span class="sourceLineNo">854</span> }<a name="line.854"></a> -<span class="sourceLineNo">855</span> fs.setOwner(path, user, group);<a name="line.855"></a> -<span class="sourceLineNo">856</span> }<a name="line.856"></a> -<span class="sourceLineNo">857</span> }<a name="line.857"></a> -<span class="sourceLineNo">858</span><a name="line.858"></a> -<span class="sourceLineNo">859</span> /**<a name="line.859"></a> -<span class="sourceLineNo">860</span> * Set path permission.<a name="line.860"></a> -<span class="sourceLineNo">861</span> */<a name="line.861"></a> -<span class="sourceLineNo">862</span> private void setPermission(final FileSystem fs, final Path path, final short filesMode,<a name="line.862"></a> -<span class="sourceLineNo">863</span> final boolean recursive) throws IOException {<a name="line.863"></a> -<span class="sourceLineNo">864</span> if (filesMode > 0) {<a name="line.864"></a> -<span class="sourceLineNo">865</span> FsPermission perm = new FsPermission(filesMode);<a name="line.865"></a> -<span class="sourceLineNo">866</span> if (recursive && fs.isDirectory(path)) {<a name="line.866"></a> -<span class="sourceLineNo">867</span> for (FileStatus child : fs.listStatus(path)) {<a name="line.867"></a> -<span class="sourceLineNo">868</span> setPermission(fs, child.getPath(), filesMode, recursive);<a name="line.868"></a> -<span class="sourceLineNo">869</span> }<a name="line.869"></a> -<span class="sourceLineNo">870</span> }<a name="line.870"></a> -<span class="sourceLineNo">871</span> fs.setPermission(path, perm);<a name="line.871"></a> -<span class="sourceLineNo">872</span> }<a name="line.872"></a> -<span class="sourceLineNo">873</span> }<a name="line.873"></a> -<span class="sourceLineNo">874</span><a name="line.874"></a> -<span class="sourceLineNo">875</span> private boolean verifyTarget = true;<a name="line.875"></a> -<span class="sourceLineNo">876</span> private boolean verifyChecksum = true;<a name="line.876"></a> -<span class="sourceLineNo">877</span> private String snapshotName = null;<a name="line.877"></a> -<span class="sourceLineNo">878</span> private String targetName = null;<a name="line.878"></a> -<span class="sourceLineNo">879</span> private boolean overwrite = false;<a name="line.879"></a> -<span class="sourceLineNo">880</span> private String filesGroup = null;<a name="line.880"></a> -<span class="sourceLineNo">881</span> private String filesUser = null;<a name="line.881"></a> -<span class="sourceLineNo">882</span> private Path outputRoot = null;<a name="line.882"></a> -<span class="sourceLineNo">883</span> private Path inputRoot = null;<a name="line.883"></a> -<span class="sourceLineNo">884</span> private int bandwidthMB = Integer.MAX_VALUE;<a name="line.884"></a> -<span class="sourceLineNo">885</span> private int filesMode = 0;<a name="line.885"></a> -<span class="sourceLineNo">886</span> private int mappers = 0;<a name="line.886"></a> -<span class="sourceLineNo">887</span><a name="line.887"></a> -<span class="sourceLineNo">888</span> @Override<a name="line.888"></a> -<span class="sourceLineNo">889</span> protected void processOptions(CommandLine cmd) {<a name="line.889"></a> -<span class="sourceLineNo">890</span> snapshotName = cmd.getOptionValue(Options.SNAPSHOT.getLongOpt(), snapshotName);<a name="line.890"></a> -<span class="sourceLineNo">891</span> targetName = cmd.getOptionValue(Options.TARGET_NAME.getLongOpt(), targetName);<a name="line.891"></a> -<span class="sourceLineNo">892</span> if (cmd.hasOption(Options.COPY_TO.getLongOpt())) {<a name="line.892"></a> -<span class="sourceLineNo">893</span> outputRoot = new Path(cmd.getOptionValue(Options.COPY_TO.getLongOpt()));<a name="line.893"></a> -<span class="sourceLineNo">894</span> }<a name="line.894"></a> -<span class="sourceLineNo">895</span> if (cmd.hasOption(Options.COPY_FROM.getLongOpt())) {<a name="line.895"></a> -<span class="sourceLineNo">896</span> inputRoot = new Path(cmd.getOptionValue(Options.COPY_FROM.getLongOpt()));<a name="line.896"></a> -<span class="sourceLineNo">897</span> }<a name="line.897"></a> -<span class="sourceLineNo">898</span> mappers = getOptionAsInt(cmd, Options.MAPPERS.getLongOpt(), mappers);<a name="line.898"></a> -<span class="sourceLineNo">899</span> filesUser = cmd.getOptionValue(Options.CHUSER.getLongOpt(), filesUser);<a name="line.899"></a> -<span class="sourceLineNo">900</span> filesGroup = cmd.getOptionValue(Options.CHGROUP.getLongOpt(), filesGroup);<a name="line.900"></a> -<span class="sourceLineNo">901</span> filesMode = getOptionAsInt(cmd, Options.CHMOD.getLongOpt(), filesMode);<a name="line.901"></a> -<span class="sourceLineNo">902</span> bandwidthMB = getOptionAsInt(cmd, Options.BANDWIDTH.getLongOpt(), bandwidthMB);<a name="line.902"></a> -<span class="sourceLineNo">903</span> overwrite = cmd.hasOption(Options.OVERWRITE.getLongOpt());<a name="line.903"></a> -<span class="sourceLineNo">904</span> // And verifyChecksum and verifyTarget with values read from old args in processOldArgs(...).<a name="line.904"></a> -<span class="sourceLineNo">905</span> verifyChecksum = !cmd.hasOption(Options.NO_CHECKSUM_VERIFY.getLongOpt());<a name="line.905"></a> -<span class="sourceLineNo">906</span> verifyTarget = !cmd.hasOption(Options.NO_TARGET_VERIFY.getLongOpt());<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> /**<a name="line.909"></a> -<span class="sourceLineNo">910</span> * Execute the export snapshot by copying the snapshot metadata, hfiles and wals.<a name="line.910"></a> -<span class="sourceLineNo">911</span> * @return 0 on success, and != 0 upon failure.<a name="line.911"></a> -<span class="sourceLineNo">912</span> */<a name="line.912"></a> -<span class="sourceLineNo">913</span> @Override<a name="line.913"></a> -<span class="sourceLineNo">914</span> public int doWork() throws IOException {<a name="line.914"></a> -<span class="sourceLineNo">915</span> Configuration conf = getConf();<a name="line.915"></a> -<span class="sourceLineNo">916</span><a name="line.916"></a> -<span class="sourceLineNo">917</span> // Check user options<a name="line.917"></a> -<span class="sourceLineNo">918</span> if (snapshotName == null) {<a name="line.918"></a> -<span class="sourceLineNo">919</span> System.err.println("Snapshot name not provided.");<a name="line.919"></a> -<span class="sourceLineNo">920</span> LOG.error("Use -h or --help for usage instructions.");<a name="line.920"></a> -<span class="sourceLineNo">921</span> return 0;<a name="line.921"></a> -<span class="sourceLineNo">922</span> }<a name="line.922"></a> -<span class="sourceLineNo">923</span><a name="line.923"></a> -<span class="sourceLineNo">924</span> if (outputRoot == null) {<a name="line.924"></a> -<span class="sourceLineNo">925</span> System.err.println("Destination file-system (--" + Options.COPY_TO.getLongOpt()<a name="line.925"></a> -<span class="sourceLineNo">926</span> + ") not provided.");<a name="line.926"></a> -<span class="sourceLineNo">927</span> LOG.error("Use -h or --help for usage instructions.");<a name="line.927"></a> -<span class="sourceLineNo">928</span> return 0;<a name="line.928"></a> -<span class="sourceLineNo">929</span> }<a name="line.929"></a> -<span class="sourceLineNo">930</span><a name="line.930"></a> -<span class="sourceLineNo">931</span> if (targetName == null) {<a name="line.931"></a> -<span class="sourceLineNo">932</span> targetName = snapshotName;<a name="line.932"></a> -<span class="sourceLineNo">933</span> }<a name="line.933"></a> -<span class="sourceLineNo">934</span> if (inputRoot == null) {<a name="line.934"></a> -<span class="sourceLineNo">935</span> inputRoot = FSUtils.getRootDir(conf);<a name="line.935"></a> -<span class="sourceLineNo">936</span> } else {<a name="line.936"></a> -<span class="sourceLineNo">937</span> FSUtils.setRootDir(conf, inputRoot);<a name="line.937"></a> -<span class="sourceLineNo">938</span> }<a name="line.938"></a> -<span class="sourceLineNo">939</span><a name="line.939"></a> -<span class="sourceLineNo">940</span> Configuration srcConf = HBaseConfiguration.createClusterConf(conf, null, CONF_SOURCE_PREFIX);<a name="line.940"></a> -<span class="sourceLineNo">941</span> srcConf.setBoolean("fs." + inputRoot.toUri().getScheme() + ".impl.disable.cache", true);<a name="line.941"></a> -<span class="sourceLineNo">942</span> FileSystem inputFs = FileSystem.get(inputRoot.toUri(), srcConf);<a name="line.942"></a> -<span class="sourceLineNo">943</span> LOG.debug("inputFs=" + inputFs.getUri().toString() + " inputRoot=" + inputRoot);<a name="line.943"></a> -<span class="sourceLineNo">944</span> Configuration destConf = HBaseConfiguration.createClusterConf(conf, null, CONF_DEST_PREFIX);<a name="line.944"></a> -<span class="sourceLineNo">945</span> destConf.setBoolean("fs." + outputRoot.toUri().getScheme() + ".impl.disable.cache", true);<a name="line.945"></a> -<span class="sourceLineNo">946</span> FileSystem outputFs = FileSystem.get(outputRoot.toUri(), destConf);<a name="line.946"></a> -<span class="sourceLineNo">947</span> LOG.debug("outputFs=" + outputFs.getUri().toString() + " outputRoot=" + outputRoot.toString());<a name="line.947"></a> -<span class="sourceLineNo">948</span><a name="line.948"></a> -<span class="sourceLineNo">949</span> boolean skipTmp = conf.getBoolean(CONF_SKIP_TMP, false);<a name="line.949"></a> +<span class="sourceLineNo">111</span> private static final String CONF_MR_JOB_NAME = "mapreduce.job.name";<a name="line.111"></a> +<span class="sourceLineNo">112</span> protected static final String CONF_SKIP_TMP = "snapshot.export.skip.tmp";<a name="line.112"></a> +<span class="sourceLineNo">113</span><a name="line.113"></a> +<span class="sourceLineNo">114</span> static class Testing {<a name="line.114"></a> +<span class="sourceLineNo">115</span> static final String CONF_TEST_FAILURE = "test.snapshot.export.failure";<a name="line.115"></a> +<span class="sourceLineNo">116</span> static final String CONF_TEST_FAILURE_COUNT = "test.snapshot.export.failure.count";<a name="line.116"></a> +<span class="sourceLineNo">117</span> int failuresCountToInject = 0;<a name="line.117"></a> +<span class="sourceLineNo">118</span> int injectedFailureCount = 0;<a name="line.118"></a> +<span class="sourceLineNo">119</span> }<a name="line.119"></a> +<span class="sourceLineNo">120</span><a name="line.120"></a> +<span class="sourceLineNo">121</span> // Command line options and defaults.<a name="line.121"></a> +<span class="sourceLineNo">122</span> static final class Options {<a name="line.122"></a> +<span class="sourceLineNo">123</span> static final Option SNAPSHOT = new Option(null, "snapshot", true, "Snapshot to restore.");<a name="line.123"></a> +<span class="sourceLineNo">124</span> static final Option TARGET_NAME = new Option(null, "target", true,<a name="line.124"></a> +<span class="sourceLineNo">125</span> "Target name for the snapshot.");<a name="line.125"></a> +<span class="sourceLineNo">126</span> static final Option COPY_TO = new Option(null, "copy-to", true, "Remote "<a name="line.126"></a> +<span class="sourceLineNo">127</span> + "destination hdfs://");<a name="line.127"></a> +<span class="sourceLineNo">128</span> static final Option COPY_FROM = new Option(null, "copy-from", true,<a name="line.128"></a> +<span class="sourceLineNo">129</span> "Input folder hdfs:// (default hbase.rootdir)");<a name="line.129"></a> +<span class="sourceLineNo">130</span> static final Option NO_CHECKSUM_VERIFY = new Option(null, "no-checksum-verify", false,<a name="line.130"></a> +<span class="sourceLineNo">131</span> "Do not verify checksum, use name+length only.");<a name="line.131"></a> +<span class="sourceLineNo">132</span> static final Option NO_TARGET_VERIFY = new Option(null, "no-target-verify", false,<a name="line.132"></a> +<span class="sourceLineNo">133</span> "Do not verify the integrity of the exported snapshot.");<a name="line.133"></a> +<span class="sourceLineNo">134</span> static final Option OVERWRITE = new Option(null, "overwrite", false,<a name="line.134"></a> +<span class="sourceLineNo">135</span> "Rewrite the snapshot manifest if already exists.");<a name="line.135"></a> +<span class="sourceLineNo">136</span> stat
<TRUNCATED>