You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/03/05 14:53:40 UTC
[07/51] [partial] hbase-site git commit: Published site at
b7b86839250bf9b295ebc1948826f43a88736d6c.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/6b94a2f2/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterFileSystem.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterFileSystem.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterFileSystem.html
index c8098b1..019ceeb 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterFileSystem.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/MasterFileSystem.html
@@ -216,245 +216,254 @@
<span class="sourceLineNo">208</span> /**<a name="line.208"></a>
<span class="sourceLineNo">209</span> * @return HBase root log dir.<a name="line.209"></a>
<span class="sourceLineNo">210</span> */<a name="line.210"></a>
-<span class="sourceLineNo">211</span> public Path getWALRootDir() { return this.walRootDir; }<a name="line.211"></a>
-<span class="sourceLineNo">212</span><a name="line.212"></a>
-<span class="sourceLineNo">213</span> /**<a name="line.213"></a>
-<span class="sourceLineNo">214</span> * @return HBase temp dir.<a name="line.214"></a>
-<span class="sourceLineNo">215</span> */<a name="line.215"></a>
-<span class="sourceLineNo">216</span> public Path getTempDir() {<a name="line.216"></a>
-<span class="sourceLineNo">217</span> return this.tempdir;<a name="line.217"></a>
-<span class="sourceLineNo">218</span> }<a name="line.218"></a>
-<span class="sourceLineNo">219</span><a name="line.219"></a>
-<span class="sourceLineNo">220</span> /**<a name="line.220"></a>
-<span class="sourceLineNo">221</span> * @return The unique identifier generated for this cluster<a name="line.221"></a>
-<span class="sourceLineNo">222</span> */<a name="line.222"></a>
-<span class="sourceLineNo">223</span> public ClusterId getClusterId() {<a name="line.223"></a>
-<span class="sourceLineNo">224</span> return clusterId;<a name="line.224"></a>
-<span class="sourceLineNo">225</span> }<a name="line.225"></a>
-<span class="sourceLineNo">226</span><a name="line.226"></a>
-<span class="sourceLineNo">227</span> /**<a name="line.227"></a>
-<span class="sourceLineNo">228</span> * Get the rootdir. Make sure its wholesome and exists before returning.<a name="line.228"></a>
-<span class="sourceLineNo">229</span> * @param rd<a name="line.229"></a>
-<span class="sourceLineNo">230</span> * @param c<a name="line.230"></a>
-<span class="sourceLineNo">231</span> * @param fs<a name="line.231"></a>
-<span class="sourceLineNo">232</span> * @return hbase.rootdir (after checks for existence and bootstrapping if<a name="line.232"></a>
-<span class="sourceLineNo">233</span> * needed populating the directory with necessary bootup files).<a name="line.233"></a>
-<span class="sourceLineNo">234</span> * @throws IOException<a name="line.234"></a>
-<span class="sourceLineNo">235</span> */<a name="line.235"></a>
-<span class="sourceLineNo">236</span> private Path checkRootDir(final Path rd, final Configuration c, final FileSystem fs)<a name="line.236"></a>
-<span class="sourceLineNo">237</span> throws IOException {<a name="line.237"></a>
-<span class="sourceLineNo">238</span> // If FS is in safe mode wait till out of it.<a name="line.238"></a>
-<span class="sourceLineNo">239</span> FSUtils.waitOnSafeMode(c, c.getInt(HConstants.THREAD_WAKE_FREQUENCY, 10 * 1000));<a name="line.239"></a>
-<span class="sourceLineNo">240</span><a name="line.240"></a>
-<span class="sourceLineNo">241</span> // Filesystem is good. Go ahead and check for hbase.rootdir.<a name="line.241"></a>
-<span class="sourceLineNo">242</span> try {<a name="line.242"></a>
-<span class="sourceLineNo">243</span> if (!fs.exists(rd)) {<a name="line.243"></a>
-<span class="sourceLineNo">244</span> fs.mkdirs(rd);<a name="line.244"></a>
-<span class="sourceLineNo">245</span> // DFS leaves safe mode with 0 DNs when there are 0 blocks.<a name="line.245"></a>
-<span class="sourceLineNo">246</span> // We used to handle this by checking the current DN count and waiting until<a name="line.246"></a>
-<span class="sourceLineNo">247</span> // it is nonzero. With security, the check for datanode count doesn't work --<a name="line.247"></a>
-<span class="sourceLineNo">248</span> // it is a privileged op. So instead we adopt the strategy of the jobtracker<a name="line.248"></a>
-<span class="sourceLineNo">249</span> // and simply retry file creation during bootstrap indefinitely. As soon as<a name="line.249"></a>
-<span class="sourceLineNo">250</span> // there is one datanode it will succeed. Permission problems should have<a name="line.250"></a>
-<span class="sourceLineNo">251</span> // already been caught by mkdirs above.<a name="line.251"></a>
-<span class="sourceLineNo">252</span> FSUtils.setVersion(fs, rd, c.getInt(HConstants.THREAD_WAKE_FREQUENCY,<a name="line.252"></a>
-<span class="sourceLineNo">253</span> 10 * 1000), c.getInt(HConstants.VERSION_FILE_WRITE_ATTEMPTS,<a name="line.253"></a>
-<span class="sourceLineNo">254</span> HConstants.DEFAULT_VERSION_FILE_WRITE_ATTEMPTS));<a name="line.254"></a>
-<span class="sourceLineNo">255</span> } else {<a name="line.255"></a>
-<span class="sourceLineNo">256</span> if (!fs.isDirectory(rd)) {<a name="line.256"></a>
-<span class="sourceLineNo">257</span> throw new IllegalArgumentException(rd.toString() + " is not a directory");<a name="line.257"></a>
-<span class="sourceLineNo">258</span> }<a name="line.258"></a>
-<span class="sourceLineNo">259</span> // as above<a name="line.259"></a>
-<span class="sourceLineNo">260</span> FSUtils.checkVersion(fs, rd, true, c.getInt(HConstants.THREAD_WAKE_FREQUENCY,<a name="line.260"></a>
-<span class="sourceLineNo">261</span> 10 * 1000), c.getInt(HConstants.VERSION_FILE_WRITE_ATTEMPTS,<a name="line.261"></a>
-<span class="sourceLineNo">262</span> HConstants.DEFAULT_VERSION_FILE_WRITE_ATTEMPTS));<a name="line.262"></a>
-<span class="sourceLineNo">263</span> }<a name="line.263"></a>
-<span class="sourceLineNo">264</span> } catch (DeserializationException de) {<a name="line.264"></a>
-<span class="sourceLineNo">265</span> LOG.error(HBaseMarkers.FATAL, "Please fix invalid configuration for "<a name="line.265"></a>
-<span class="sourceLineNo">266</span> + HConstants.HBASE_DIR, de);<a name="line.266"></a>
-<span class="sourceLineNo">267</span> IOException ioe = new IOException();<a name="line.267"></a>
-<span class="sourceLineNo">268</span> ioe.initCause(de);<a name="line.268"></a>
-<span class="sourceLineNo">269</span> throw ioe;<a name="line.269"></a>
-<span class="sourceLineNo">270</span> } catch (IllegalArgumentException iae) {<a name="line.270"></a>
-<span class="sourceLineNo">271</span> LOG.error(HBaseMarkers.FATAL, "Please fix invalid configuration for "<a name="line.271"></a>
-<span class="sourceLineNo">272</span> + HConstants.HBASE_DIR + " " + rd.toString(), iae);<a name="line.272"></a>
-<span class="sourceLineNo">273</span> throw iae;<a name="line.273"></a>
-<span class="sourceLineNo">274</span> }<a name="line.274"></a>
-<span class="sourceLineNo">275</span> // Make sure cluster ID exists<a name="line.275"></a>
-<span class="sourceLineNo">276</span> if (!FSUtils.checkClusterIdExists(fs, rd, c.getInt(<a name="line.276"></a>
-<span class="sourceLineNo">277</span> HConstants.THREAD_WAKE_FREQUENCY, 10 * 1000))) {<a name="line.277"></a>
-<span class="sourceLineNo">278</span> FSUtils.setClusterId(fs, rd, new ClusterId(), c.getInt(HConstants.THREAD_WAKE_FREQUENCY, 10 * 1000));<a name="line.278"></a>
-<span class="sourceLineNo">279</span> }<a name="line.279"></a>
-<span class="sourceLineNo">280</span> clusterId = FSUtils.getClusterId(fs, rd);<a name="line.280"></a>
-<span class="sourceLineNo">281</span><a name="line.281"></a>
-<span class="sourceLineNo">282</span> // Make sure the meta region directory exists!<a name="line.282"></a>
-<span class="sourceLineNo">283</span> if (!FSUtils.metaRegionExists(fs, rd)) {<a name="line.283"></a>
-<span class="sourceLineNo">284</span> bootstrap(rd, c);<a name="line.284"></a>
-<span class="sourceLineNo">285</span> }<a name="line.285"></a>
-<span class="sourceLineNo">286</span><a name="line.286"></a>
-<span class="sourceLineNo">287</span> // Create tableinfo-s for hbase:meta if not already there.<a name="line.287"></a>
-<span class="sourceLineNo">288</span> // assume, created table descriptor is for enabling table<a name="line.288"></a>
-<span class="sourceLineNo">289</span> // meta table is a system table, so descriptors are predefined,<a name="line.289"></a>
-<span class="sourceLineNo">290</span> // we should get them from registry.<a name="line.290"></a>
-<span class="sourceLineNo">291</span> FSTableDescriptors fsd = new FSTableDescriptors(c, fs, rd);<a name="line.291"></a>
-<span class="sourceLineNo">292</span> fsd.createTableDescriptor(fsd.get(TableName.META_TABLE_NAME));<a name="line.292"></a>
-<span class="sourceLineNo">293</span><a name="line.293"></a>
-<span class="sourceLineNo">294</span> return rd;<a name="line.294"></a>
-<span class="sourceLineNo">295</span> }<a name="line.295"></a>
-<span class="sourceLineNo">296</span><a name="line.296"></a>
-<span class="sourceLineNo">297</span> /**<a name="line.297"></a>
-<span class="sourceLineNo">298</span> * Make sure the hbase temp directory exists and is empty.<a name="line.298"></a>
-<span class="sourceLineNo">299</span> * NOTE that this method is only executed once just after the master becomes the active one.<a name="line.299"></a>
-<span class="sourceLineNo">300</span> */<a name="line.300"></a>
-<span class="sourceLineNo">301</span> private void checkTempDir(final Path tmpdir, final Configuration c, final FileSystem fs)<a name="line.301"></a>
-<span class="sourceLineNo">302</span> throws IOException {<a name="line.302"></a>
-<span class="sourceLineNo">303</span> // If the temp directory exists, clear the content (left over, from the previous run)<a name="line.303"></a>
-<span class="sourceLineNo">304</span> if (fs.exists(tmpdir)) {<a name="line.304"></a>
-<span class="sourceLineNo">305</span> // Archive table in temp, maybe left over from failed deletion,<a name="line.305"></a>
-<span class="sourceLineNo">306</span> // if not the cleaner will take care of them.<a name="line.306"></a>
-<span class="sourceLineNo">307</span> for (Path tabledir: FSUtils.getTableDirs(fs, tmpdir)) {<a name="line.307"></a>
-<span class="sourceLineNo">308</span> for (Path regiondir: FSUtils.getRegionDirs(fs, tabledir)) {<a name="line.308"></a>
-<span class="sourceLineNo">309</span> HFileArchiver.archiveRegion(fs, this.rootdir, tabledir, regiondir);<a name="line.309"></a>
-<span class="sourceLineNo">310</span> }<a name="line.310"></a>
-<span class="sourceLineNo">311</span> }<a name="line.311"></a>
-<span class="sourceLineNo">312</span> if (!fs.delete(tmpdir, true)) {<a name="line.312"></a>
-<span class="sourceLineNo">313</span> throw new IOException("Unable to clean the temp directory: " + tmpdir);<a name="line.313"></a>
-<span class="sourceLineNo">314</span> }<a name="line.314"></a>
-<span class="sourceLineNo">315</span> }<a name="line.315"></a>
-<span class="sourceLineNo">316</span><a name="line.316"></a>
-<span class="sourceLineNo">317</span> // Create the temp directory<a name="line.317"></a>
-<span class="sourceLineNo">318</span> if (isSecurityEnabled) {<a name="line.318"></a>
-<span class="sourceLineNo">319</span> if (!fs.mkdirs(tmpdir, secureRootSubDirPerms)) {<a name="line.319"></a>
-<span class="sourceLineNo">320</span> throw new IOException("HBase temp directory '" + tmpdir + "' creation failure.");<a name="line.320"></a>
-<span class="sourceLineNo">321</span> }<a name="line.321"></a>
-<span class="sourceLineNo">322</span> } else {<a name="line.322"></a>
-<span class="sourceLineNo">323</span> if (!fs.mkdirs(tmpdir)) {<a name="line.323"></a>
-<span class="sourceLineNo">324</span> throw new IOException("HBase temp directory '" + tmpdir + "' creation failure.");<a name="line.324"></a>
-<span class="sourceLineNo">325</span> }<a name="line.325"></a>
-<span class="sourceLineNo">326</span> }<a name="line.326"></a>
-<span class="sourceLineNo">327</span> }<a name="line.327"></a>
-<span class="sourceLineNo">328</span><a name="line.328"></a>
-<span class="sourceLineNo">329</span> /**<a name="line.329"></a>
-<span class="sourceLineNo">330</span> * Make sure the directories under rootDir have good permissions. Create if necessary.<a name="line.330"></a>
-<span class="sourceLineNo">331</span> * @param p<a name="line.331"></a>
-<span class="sourceLineNo">332</span> * @throws IOException<a name="line.332"></a>
-<span class="sourceLineNo">333</span> */<a name="line.333"></a>
-<span class="sourceLineNo">334</span> private void checkSubDir(final Path p, final String dirPermsConfName) throws IOException {<a name="line.334"></a>
-<span class="sourceLineNo">335</span> FileSystem fs = p.getFileSystem(conf);<a name="line.335"></a>
-<span class="sourceLineNo">336</span> FsPermission dirPerms = new FsPermission(conf.get(dirPermsConfName, "700"));<a name="line.336"></a>
-<span class="sourceLineNo">337</span> if (!fs.exists(p)) {<a name="line.337"></a>
-<span class="sourceLineNo">338</span> if (isSecurityEnabled) {<a name="line.338"></a>
-<span class="sourceLineNo">339</span> if (!fs.mkdirs(p, secureRootSubDirPerms)) {<a name="line.339"></a>
-<span class="sourceLineNo">340</span> throw new IOException("HBase directory '" + p + "' creation failure.");<a name="line.340"></a>
-<span class="sourceLineNo">341</span> }<a name="line.341"></a>
-<span class="sourceLineNo">342</span> } else {<a name="line.342"></a>
-<span class="sourceLineNo">343</span> if (!fs.mkdirs(p)) {<a name="line.343"></a>
-<span class="sourceLineNo">344</span> throw new IOException("HBase directory '" + p + "' creation failure.");<a name="line.344"></a>
-<span class="sourceLineNo">345</span> }<a name="line.345"></a>
-<span class="sourceLineNo">346</span> }<a name="line.346"></a>
-<span class="sourceLineNo">347</span> }<a name="line.347"></a>
-<span class="sourceLineNo">348</span> else {<a name="line.348"></a>
-<span class="sourceLineNo">349</span> if (isSecurityEnabled && !dirPerms.equals(fs.getFileStatus(p).getPermission())) {<a name="line.349"></a>
-<span class="sourceLineNo">350</span> // check whether the permission match<a name="line.350"></a>
-<span class="sourceLineNo">351</span> LOG.warn("Found HBase directory permissions NOT matching expected permissions for "<a name="line.351"></a>
-<span class="sourceLineNo">352</span> + p.toString() + " permissions=" + fs.getFileStatus(p).getPermission()<a name="line.352"></a>
-<span class="sourceLineNo">353</span> + ", expecting " + dirPerms + ". Automatically setting the permissions. "<a name="line.353"></a>
-<span class="sourceLineNo">354</span> + "You can change the permissions by setting \"" + dirPermsConfName + "\" in hbase-site.xml "<a name="line.354"></a>
-<span class="sourceLineNo">355</span> + "and restarting the master");<a name="line.355"></a>
-<span class="sourceLineNo">356</span> fs.setPermission(p, dirPerms);<a name="line.356"></a>
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-<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><a name="line.360"></a>
-<span class="sourceLineNo">361</span> /**<a name="line.361"></a>
-<span class="sourceLineNo">362</span> * Check permissions for bulk load staging directory. This directory has special hidden<a name="line.362"></a>
-<span class="sourceLineNo">363</span> * permissions. Create it if necessary.<a name="line.363"></a>
-<span class="sourceLineNo">364</span> * @throws IOException<a name="line.364"></a>
-<span class="sourceLineNo">365</span> */<a name="line.365"></a>
-<span class="sourceLineNo">366</span> private void checkStagingDir() throws IOException {<a name="line.366"></a>
-<span class="sourceLineNo">367</span> Path p = new Path(this.rootdir, HConstants.BULKLOAD_STAGING_DIR_NAME);<a name="line.367"></a>
-<span class="sourceLineNo">368</span> try {<a name="line.368"></a>
-<span class="sourceLineNo">369</span> if (!this.fs.exists(p)) {<a name="line.369"></a>
-<span class="sourceLineNo">370</span> if (!this.fs.mkdirs(p, HiddenDirPerms)) {<a name="line.370"></a>
-<span class="sourceLineNo">371</span> throw new IOException("Failed to create staging directory " + p.toString());<a name="line.371"></a>
-<span class="sourceLineNo">372</span> }<a name="line.372"></a>
-<span class="sourceLineNo">373</span> } else {<a name="line.373"></a>
-<span class="sourceLineNo">374</span> this.fs.setPermission(p, HiddenDirPerms);<a name="line.374"></a>
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-<span class="sourceLineNo">377</span> LOG.error("Failed to create or set permission on staging directory " + p.toString());<a name="line.377"></a>
-<span class="sourceLineNo">378</span> throw new IOException("Failed to create or set permission on staging directory "<a name="line.378"></a>
-<span class="sourceLineNo">379</span> + p.toString(), e);<a name="line.379"></a>
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-<span class="sourceLineNo">385</span> LOG.info("BOOTSTRAP: creating hbase:meta region");<a name="line.385"></a>
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-<span class="sourceLineNo">387</span> // Bootstrapping, make sure blockcache is off. Else, one will be<a name="line.387"></a>
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-<span class="sourceLineNo">389</span> // not make it in first place. Turn off block caching for bootstrap.<a name="line.389"></a>
-<span class="sourceLineNo">390</span> // Enable after.<a name="line.390"></a>
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-<span class="sourceLineNo">394</span> meta.close();<a name="line.394"></a>
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-<span class="sourceLineNo">396</span> e = e instanceof RemoteException ?<a name="line.396"></a>
-<span class="sourceLineNo">397</span> ((RemoteException)e).unwrapRemoteException() : e;<a name="line.397"></a>
-<span class="sourceLineNo">398</span> LOG.error("bootstrap", e);<a name="line.398"></a>
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-<span class="sourceLineNo">410</span> builder.modifyColumnFamily(ColumnFamilyDescriptorBuilder.newBuilder(hcd)<a name="line.410"></a>
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-<span class="sourceLineNo">419</span> public void deleteFamilyFromFS(RegionInfo region, byte[] familyName)<a name="line.419"></a>
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-<span class="sourceLineNo">421</span> deleteFamilyFromFS(rootdir, region, familyName);<a name="line.421"></a>
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-<span class="sourceLineNo">423</span><a name="line.423"></a>
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-<span class="sourceLineNo">426</span> // archive family store files<a name="line.426"></a>
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-<span class="sourceLineNo">428</span> HFileArchiver.archiveFamily(fs, conf, region, tableDir, familyName);<a name="line.428"></a>
-<span class="sourceLineNo">429</span><a name="line.429"></a>
-<span class="sourceLineNo">430</span> // delete the family folder<a name="line.430"></a>
-<span class="sourceLineNo">431</span> Path familyDir = new Path(tableDir,<a name="line.431"></a>
-<span class="sourceLineNo">432</span> new Path(region.getEncodedName(), Bytes.toString(familyName)));<a name="line.432"></a>
-<span class="sourceLineNo">433</span> if (fs.delete(familyDir, true) == false) {<a name="line.433"></a>
-<span class="sourceLineNo">434</span> if (fs.exists(familyDir)) {<a name="line.434"></a>
-<span class="sourceLineNo">435</span> throw new IOException("Could not delete family "<a name="line.435"></a>
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+<span class="sourceLineNo">437</span> HFileArchiver.archiveFamily(fs, conf, region, tableDir, familyName);<a name="line.437"></a>
+<span class="sourceLineNo">438</span><a name="line.438"></a>
+<span class="sourceLineNo">439</span> // delete the family folder<a name="line.439"></a>
+<span class="sourceLineNo">440</span> Path familyDir = new Path(tableDir,<a name="line.440"></a>
+<span class="sourceLineNo">441</span> new Path(region.getEncodedName(), Bytes.toString(familyName)));<a name="line.441"></a>
+<span class="sourceLineNo">442</span> if (fs.delete(familyDir, true) == false) {<a name="line.442"></a>
+<span class="sourceLineNo">443</span> if (fs.exists(familyDir)) {<a name="line.443"></a>
+<span class="sourceLineNo">444</span> throw new IOException("Could not delete family "<a name="line.444"></a>
+<span class="sourceLineNo">445</span> + Bytes.toString(familyName) + " from FileSystem for region "<a name="line.445"></a>
+<span class="sourceLineNo">446</span> + region.getRegionNameAsString() + "(" + region.getEncodedName()<a name="line.446"></a>
+<span class="sourceLineNo">447</span> + ")");<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> public void stop() {<a name="line.452"></a>
+<span class="sourceLineNo">453</span> }<a name="line.453"></a>
+<span class="sourceLineNo">454</span><a name="line.454"></a>
+<span class="sourceLineNo">455</span> public void logFileSystemState(Logger log) throws IOException {<a name="line.455"></a>
+<span class="sourceLineNo">456</span> FSUtils.logFileSystemState(fs, rootdir, log);<a name="line.456"></a>
+<span class="sourceLineNo">457</span> }<a name="line.457"></a>
+<span class="sourceLineNo">458</span>}<a name="line.458"></a>