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 2017/04/01 03:33:39 UTC
[12/25] hbase-site git commit: Published site at
9facfa550f1e7386be3a04d84f7e8013f5002965.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/993199fc/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/CleanerChore.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/CleanerChore.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/CleanerChore.html
index 554525c..2a2807b 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/CleanerChore.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/CleanerChore.html
@@ -54,7 +54,7 @@
<span class="sourceLineNo">046</span><a name="line.46"></a>
<span class="sourceLineNo">047</span> private static final Log LOG = LogFactory.getLog(CleanerChore.class.getName());<a name="line.47"></a>
<span class="sourceLineNo">048</span><a name="line.48"></a>
-<span class="sourceLineNo">049</span> private final FileSystem fs;<a name="line.49"></a>
+<span class="sourceLineNo">049</span> protected final FileSystem fs;<a name="line.49"></a>
<span class="sourceLineNo">050</span> private final Path oldFileDir;<a name="line.50"></a>
<span class="sourceLineNo">051</span> private final Configuration conf;<a name="line.51"></a>
<span class="sourceLineNo">052</span> protected List<T> cleanersChain;<a name="line.52"></a>
@@ -277,52 +277,60 @@
<span class="sourceLineNo">269</span> }<a name="line.269"></a>
<span class="sourceLineNo">270</span> <a name="line.270"></a>
<span class="sourceLineNo">271</span> Iterable<FileStatus> filesToDelete = Iterables.concat(invalidFiles, deletableValidFiles);<a name="line.271"></a>
-<span class="sourceLineNo">272</span> int deletedFileCount = 0;<a name="line.272"></a>
-<span class="sourceLineNo">273</span> for (FileStatus file : filesToDelete) {<a name="line.273"></a>
-<span class="sourceLineNo">274</span> Path filePath = file.getPath();<a name="line.274"></a>
-<span class="sourceLineNo">275</span> if (LOG.isDebugEnabled()) {<a name="line.275"></a>
-<span class="sourceLineNo">276</span> LOG.debug("Removing: " + filePath + " from archive");<a name="line.276"></a>
-<span class="sourceLineNo">277</span> }<a name="line.277"></a>
-<span class="sourceLineNo">278</span> try {<a name="line.278"></a>
-<span class="sourceLineNo">279</span> boolean success = this.fs.delete(filePath, false);<a name="line.279"></a>
-<span class="sourceLineNo">280</span> if (success) {<a name="line.280"></a>
-<span class="sourceLineNo">281</span> deletedFileCount++;<a name="line.281"></a>
-<span class="sourceLineNo">282</span> } else {<a name="line.282"></a>
-<span class="sourceLineNo">283</span> LOG.warn("Attempted to delete:" + filePath<a name="line.283"></a>
-<span class="sourceLineNo">284</span> + ", but couldn't. Run cleaner chain and attempt to delete on next pass.");<a name="line.284"></a>
-<span class="sourceLineNo">285</span> }<a name="line.285"></a>
-<span class="sourceLineNo">286</span> } catch (IOException e) {<a name="line.286"></a>
-<span class="sourceLineNo">287</span> e = e instanceof RemoteException ?<a name="line.287"></a>
-<span class="sourceLineNo">288</span> ((RemoteException)e).unwrapRemoteException() : e;<a name="line.288"></a>
-<span class="sourceLineNo">289</span> LOG.warn("Error while deleting: " + filePath, e);<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> return deletedFileCount == files.size();<a name="line.293"></a>
-<span class="sourceLineNo">294</span> }<a name="line.294"></a>
-<span class="sourceLineNo">295</span><a name="line.295"></a>
-<span class="sourceLineNo">296</span> @Override<a name="line.296"></a>
-<span class="sourceLineNo">297</span> public void cleanup() {<a name="line.297"></a>
-<span class="sourceLineNo">298</span> for (T lc : this.cleanersChain) {<a name="line.298"></a>
-<span class="sourceLineNo">299</span> try {<a name="line.299"></a>
-<span class="sourceLineNo">300</span> lc.stop("Exiting");<a name="line.300"></a>
-<span class="sourceLineNo">301</span> } catch (Throwable t) {<a name="line.301"></a>
-<span class="sourceLineNo">302</span> LOG.warn("Stopping", t);<a name="line.302"></a>
-<span class="sourceLineNo">303</span> }<a name="line.303"></a>
-<span class="sourceLineNo">304</span> }<a name="line.304"></a>
-<span class="sourceLineNo">305</span> }<a name="line.305"></a>
-<span class="sourceLineNo">306</span><a name="line.306"></a>
-<span class="sourceLineNo">307</span> /**<a name="line.307"></a>
-<span class="sourceLineNo">308</span> * @param enabled<a name="line.308"></a>
-<span class="sourceLineNo">309</span> */<a name="line.309"></a>
-<span class="sourceLineNo">310</span> public boolean setEnabled(final boolean enabled) {<a name="line.310"></a>
-<span class="sourceLineNo">311</span> return this.enabled.getAndSet(enabled);<a name="line.311"></a>
-<span class="sourceLineNo">312</span> }<a name="line.312"></a>
-<span class="sourceLineNo">313</span><a name="line.313"></a>
-<span class="sourceLineNo">314</span> public boolean getEnabled() {<a name="line.314"></a>
-<span class="sourceLineNo">315</span> return this.enabled.get();<a name="line.315"></a>
-<span class="sourceLineNo">316</span> }<a name="line.316"></a>
-<span class="sourceLineNo">317</span>}<a name="line.317"></a>
+<span class="sourceLineNo">272</span> return deleteFiles(filesToDelete) == files.size();<a name="line.272"></a>
+<span class="sourceLineNo">273</span> }<a name="line.273"></a>
+<span class="sourceLineNo">274</span><a name="line.274"></a>
+<span class="sourceLineNo">275</span> /**<a name="line.275"></a>
+<span class="sourceLineNo">276</span> * Delete the given files<a name="line.276"></a>
+<span class="sourceLineNo">277</span> * @param filesToDelete files to delete<a name="line.277"></a>
+<span class="sourceLineNo">278</span> * @return number of deleted files<a name="line.278"></a>
+<span class="sourceLineNo">279</span> */<a name="line.279"></a>
+<span class="sourceLineNo">280</span> protected int deleteFiles(Iterable<FileStatus> filesToDelete) {<a name="line.280"></a>
+<span class="sourceLineNo">281</span> int deletedFileCount = 0;<a name="line.281"></a>
+<span class="sourceLineNo">282</span> for (FileStatus file : filesToDelete) {<a name="line.282"></a>
+<span class="sourceLineNo">283</span> Path filePath = file.getPath();<a name="line.283"></a>
+<span class="sourceLineNo">284</span> if (LOG.isDebugEnabled()) {<a name="line.284"></a>
+<span class="sourceLineNo">285</span> LOG.debug("Removing: " + filePath + " from archive");<a name="line.285"></a>
+<span class="sourceLineNo">286</span> }<a name="line.286"></a>
+<span class="sourceLineNo">287</span> try {<a name="line.287"></a>
+<span class="sourceLineNo">288</span> boolean success = this.fs.delete(filePath, false);<a name="line.288"></a>
+<span class="sourceLineNo">289</span> if (success) {<a name="line.289"></a>
+<span class="sourceLineNo">290</span> deletedFileCount++;<a name="line.290"></a>
+<span class="sourceLineNo">291</span> } else {<a name="line.291"></a>
+<span class="sourceLineNo">292</span> LOG.warn("Attempted to delete:" + filePath<a name="line.292"></a>
+<span class="sourceLineNo">293</span> + ", but couldn't. Run cleaner chain and attempt to delete on next pass.");<a name="line.293"></a>
+<span class="sourceLineNo">294</span> }<a name="line.294"></a>
+<span class="sourceLineNo">295</span> } catch (IOException e) {<a name="line.295"></a>
+<span class="sourceLineNo">296</span> e = e instanceof RemoteException ?<a name="line.296"></a>
+<span class="sourceLineNo">297</span> ((RemoteException)e).unwrapRemoteException() : e;<a name="line.297"></a>
+<span class="sourceLineNo">298</span> LOG.warn("Error while deleting: " + filePath, e);<a name="line.298"></a>
+<span class="sourceLineNo">299</span> }<a name="line.299"></a>
+<span class="sourceLineNo">300</span> }<a name="line.300"></a>
+<span class="sourceLineNo">301</span> return deletedFileCount;<a name="line.301"></a>
+<span class="sourceLineNo">302</span> }<a name="line.302"></a>
+<span class="sourceLineNo">303</span><a name="line.303"></a>
+<span class="sourceLineNo">304</span> @Override<a name="line.304"></a>
+<span class="sourceLineNo">305</span> public void cleanup() {<a name="line.305"></a>
+<span class="sourceLineNo">306</span> for (T lc : this.cleanersChain) {<a name="line.306"></a>
+<span class="sourceLineNo">307</span> try {<a name="line.307"></a>
+<span class="sourceLineNo">308</span> lc.stop("Exiting");<a name="line.308"></a>
+<span class="sourceLineNo">309</span> } catch (Throwable t) {<a name="line.309"></a>
+<span class="sourceLineNo">310</span> LOG.warn("Stopping", t);<a name="line.310"></a>
+<span class="sourceLineNo">311</span> }<a name="line.311"></a>
+<span class="sourceLineNo">312</span> }<a name="line.312"></a>
+<span class="sourceLineNo">313</span> }<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> * @param enabled<a name="line.316"></a>
+<span class="sourceLineNo">317</span> */<a name="line.317"></a>
+<span class="sourceLineNo">318</span> public boolean setEnabled(final boolean enabled) {<a name="line.318"></a>
+<span class="sourceLineNo">319</span> return this.enabled.getAndSet(enabled);<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> public boolean getEnabled() {<a name="line.322"></a>
+<span class="sourceLineNo">323</span> return this.enabled.get();<a name="line.323"></a>
+<span class="sourceLineNo">324</span> }<a name="line.324"></a>
+<span class="sourceLineNo">325</span>}<a name="line.325"></a>
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/993199fc/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html
index bba66a8..d952755 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/cleaner/HFileCleaner.html
@@ -25,59 +25,370 @@
<span class="sourceLineNo">017</span> */<a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.hbase.master.cleaner;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
-<span class="sourceLineNo">020</span>import java.util.List;<a name="line.20"></a>
-<span class="sourceLineNo">021</span>import java.util.Map;<a name="line.21"></a>
-<span class="sourceLineNo">022</span><a name="line.22"></a>
-<span class="sourceLineNo">023</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import org.apache.hadoop.conf.Configuration;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.hadoop.fs.FileSystem;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.fs.Path;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.Stoppable;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.io.HFileLink;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>/**<a name="line.30"></a>
-<span class="sourceLineNo">031</span> * This Chore, every time it runs, will clear the HFiles in the hfile archive<a name="line.31"></a>
-<span class="sourceLineNo">032</span> * folder that are deletable for each HFile cleaner in the chain.<a name="line.32"></a>
-<span class="sourceLineNo">033</span> */<a name="line.33"></a>
-<span class="sourceLineNo">034</span>@InterfaceAudience.Private<a name="line.34"></a>
-<span class="sourceLineNo">035</span>public class HFileCleaner extends CleanerChore<BaseHFileCleanerDelegate> {<a name="line.35"></a>
-<span class="sourceLineNo">036</span><a name="line.36"></a>
-<span class="sourceLineNo">037</span> public static final String MASTER_HFILE_CLEANER_PLUGINS = "hbase.master.hfilecleaner.plugins";<a name="line.37"></a>
+<span class="sourceLineNo">020</span>import java.io.IOException;<a name="line.20"></a>
+<span class="sourceLineNo">021</span>import java.util.ArrayList;<a name="line.21"></a>
+<span class="sourceLineNo">022</span>import java.util.List;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.util.concurrent.BlockingQueue;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.concurrent.LinkedBlockingQueue;<a name="line.25"></a>
+<span class="sourceLineNo">026</span><a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.commons.logging.Log;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.commons.logging.LogFactory;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.conf.ConfigurationObserver;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.conf.Configuration;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.fs.FileStatus;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.fs.FileSystem;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.fs.Path;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.Stoppable;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.io.HFileLink;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.StoreFileInfo;<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
-<span class="sourceLineNo">039</span> public HFileCleaner(final int period, final Stoppable stopper, Configuration conf, FileSystem fs,<a name="line.39"></a>
-<span class="sourceLineNo">040</span> Path directory) {<a name="line.40"></a>
-<span class="sourceLineNo">041</span> this(period, stopper, conf, fs, directory, null);<a name="line.41"></a>
-<span class="sourceLineNo">042</span> }<a name="line.42"></a>
-<span class="sourceLineNo">043</span><a name="line.43"></a>
-<span class="sourceLineNo">044</span> /**<a name="line.44"></a>
-<span class="sourceLineNo">045</span> * @param period the period of time to sleep between each run<a name="line.45"></a>
-<span class="sourceLineNo">046</span> * @param stopper the stopper<a name="line.46"></a>
-<span class="sourceLineNo">047</span> * @param conf configuration to use<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * @param fs handle to the FS<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * @param directory directory to be cleaned<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * @param params params could be used in subclass of BaseHFileCleanerDelegate<a name="line.50"></a>
-<span class="sourceLineNo">051</span> */<a name="line.51"></a>
-<span class="sourceLineNo">052</span> public HFileCleaner(final int period, final Stoppable stopper, Configuration conf, FileSystem fs,<a name="line.52"></a>
-<span class="sourceLineNo">053</span> Path directory, Map<String, Object> params) {<a name="line.53"></a>
-<span class="sourceLineNo">054</span> super("HFileCleaner", period, stopper, conf, fs,<a name="line.54"></a>
-<span class="sourceLineNo">055</span> directory, MASTER_HFILE_CLEANER_PLUGINS, params);<a name="line.55"></a>
-<span class="sourceLineNo">056</span> }<a name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span> @Override<a name="line.58"></a>
-<span class="sourceLineNo">059</span> protected boolean validate(Path file) {<a name="line.59"></a>
-<span class="sourceLineNo">060</span> if (HFileLink.isBackReferencesDir(file) || HFileLink.isBackReferencesDir(file.getParent())) {<a name="line.60"></a>
-<span class="sourceLineNo">061</span> return true;<a name="line.61"></a>
-<span class="sourceLineNo">062</span> }<a name="line.62"></a>
-<span class="sourceLineNo">063</span> return StoreFileInfo.validateStoreFileName(file.getName());<a name="line.63"></a>
-<span class="sourceLineNo">064</span> }<a name="line.64"></a>
-<span class="sourceLineNo">065</span><a name="line.65"></a>
-<span class="sourceLineNo">066</span> /**<a name="line.66"></a>
-<span class="sourceLineNo">067</span> * Exposed for TESTING!<a name="line.67"></a>
-<span class="sourceLineNo">068</span> */<a name="line.68"></a>
-<span class="sourceLineNo">069</span> public List<BaseHFileCleanerDelegate> getDelegatesForTesting() {<a name="line.69"></a>
-<span class="sourceLineNo">070</span> return this.cleanersChain;<a name="line.70"></a>
-<span class="sourceLineNo">071</span> }<a name="line.71"></a>
-<span class="sourceLineNo">072</span>}<a name="line.72"></a>
+<span class="sourceLineNo">039</span>import com.google.common.annotations.VisibleForTesting;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>/**<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * This Chore, every time it runs, will clear the HFiles in the hfile archive<a name="line.41"></a>
+<span class="sourceLineNo">042</span> * folder that are deletable for each HFile cleaner in the chain.<a name="line.42"></a>
+<span class="sourceLineNo">043</span> */<a name="line.43"></a>
+<span class="sourceLineNo">044</span>@InterfaceAudience.Private<a name="line.44"></a>
+<span class="sourceLineNo">045</span>public class HFileCleaner extends CleanerChore<BaseHFileCleanerDelegate> implements<a name="line.45"></a>
+<span class="sourceLineNo">046</span> ConfigurationObserver {<a name="line.46"></a>
+<span class="sourceLineNo">047</span><a name="line.47"></a>
+<span class="sourceLineNo">048</span> public static final String MASTER_HFILE_CLEANER_PLUGINS = "hbase.master.hfilecleaner.plugins";<a name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span> public HFileCleaner(final int period, final Stoppable stopper, Configuration conf, FileSystem fs,<a name="line.50"></a>
+<span class="sourceLineNo">051</span> Path directory) {<a name="line.51"></a>
+<span class="sourceLineNo">052</span> this(period, stopper, conf, fs, directory, null);<a name="line.52"></a>
+<span class="sourceLineNo">053</span> }<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span> // Configuration key for large/small throttle point<a name="line.55"></a>
+<span class="sourceLineNo">056</span> public final static String HFILE_DELETE_THROTTLE_THRESHOLD =<a name="line.56"></a>
+<span class="sourceLineNo">057</span> "hbase.regionserver.thread.hfilecleaner.throttle";<a name="line.57"></a>
+<span class="sourceLineNo">058</span> public final static int DEFAULT_HFILE_DELETE_THROTTLE_THRESHOLD = 64 * 1024 * 1024;// 64M<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span> // Configuration key for large queue size<a name="line.60"></a>
+<span class="sourceLineNo">061</span> public final static String LARGE_HFILE_DELETE_QUEUE_SIZE =<a name="line.61"></a>
+<span class="sourceLineNo">062</span> "hbase.regionserver.hfilecleaner.large.queue.size";<a name="line.62"></a>
+<span class="sourceLineNo">063</span> public final static int DEFAULT_LARGE_HFILE_DELETE_QUEUE_SIZE = 1048576;<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span> // Configuration key for small queue size<a name="line.65"></a>
+<span class="sourceLineNo">066</span> public final static String SMALL_HFILE_DELETE_QUEUE_SIZE =<a name="line.66"></a>
+<span class="sourceLineNo">067</span> "hbase.regionserver.hfilecleaner.small.queue.size";<a name="line.67"></a>
+<span class="sourceLineNo">068</span> public final static int DEFAULT_SMALL_HFILE_DELETE_QUEUE_SIZE = 1048576;<a name="line.68"></a>
+<span class="sourceLineNo">069</span><a name="line.69"></a>
+<span class="sourceLineNo">070</span> private static final Log LOG = LogFactory.getLog(HFileCleaner.class);<a name="line.70"></a>
+<span class="sourceLineNo">071</span><a name="line.71"></a>
+<span class="sourceLineNo">072</span> BlockingQueue<HFileDeleteTask> largeFileQueue;<a name="line.72"></a>
+<span class="sourceLineNo">073</span> BlockingQueue<HFileDeleteTask> smallFileQueue;<a name="line.73"></a>
+<span class="sourceLineNo">074</span> private int throttlePoint;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> private int largeQueueSize;<a name="line.75"></a>
+<span class="sourceLineNo">076</span> private int smallQueueSize;<a name="line.76"></a>
+<span class="sourceLineNo">077</span> private List<Thread> threads = new ArrayList<Thread>();<a name="line.77"></a>
+<span class="sourceLineNo">078</span> private boolean running;<a name="line.78"></a>
+<span class="sourceLineNo">079</span><a name="line.79"></a>
+<span class="sourceLineNo">080</span> private long deletedLargeFiles = 0L;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> private long deletedSmallFiles = 0L;<a name="line.81"></a>
+<span class="sourceLineNo">082</span><a name="line.82"></a>
+<span class="sourceLineNo">083</span> /**<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * @param period the period of time to sleep between each run<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * @param stopper the stopper<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * @param conf configuration to use<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * @param fs handle to the FS<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * @param directory directory to be cleaned<a name="line.88"></a>
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+<span class="sourceLineNo">349</span><a name="line.349"></a>
+<span class="sourceLineNo">350</span> @Override<a name="line.350"></a>
+<span class="sourceLineNo">351</span> public void onConfigurationChange(Configuration conf) {<a name="line.351"></a>
+<span class="sourceLineNo">352</span> StringBuilder builder = new StringBuilder();<a name="line.352"></a>
+<span class="sourceLineNo">353</span> builder.append("Updating configuration for HFileCleaner, previous throttle point: ")<a name="line.353"></a>
+<span class="sourceLineNo">354</span> .append(throttlePoint).append(", largeQueueSize: ").append(largeQueueSize)<a name="line.354"></a>
+<span class="sourceLineNo">355</span> .append(", smallQueueSize: ").append(smallQueueSize);<a name="line.355"></a>
+<span class="sourceLineNo">356</span> stopHFileDeleteThreads();<a name="line.356"></a>
+<span class="sourceLineNo">357</span> this.throttlePoint =<a name="line.357"></a>
+<span class="sourceLineNo">358</span> conf.getInt(HFILE_DELETE_THROTTLE_THRESHOLD, DEFAULT_HFILE_DELETE_THROTTLE_THRESHOLD);<a name="line.358"></a>
+<span class="sourceLineNo">359</span> this.largeQueueSize =<a name="line.359"></a>
+<span class="sourceLineNo">360</span> conf.getInt(LARGE_HFILE_DELETE_QUEUE_SIZE, DEFAULT_LARGE_HFILE_DELETE_QUEUE_SIZE);<a name="line.360"></a>
+<span class="sourceLineNo">361</span> this.smallQueueSize =<a name="line.361"></a>
+<span class="sourceLineNo">362</span> conf.getInt(SMALL_HFILE_DELETE_QUEUE_SIZE, DEFAULT_SMALL_HFILE_DELETE_QUEUE_SIZE);<a name="line.362"></a>
+<span class="sourceLineNo">363</span> // record the left over tasks<a name="line.363"></a>
+<span class="sourceLineNo">364</span> List<HFileDeleteTask> leftOverTasks = new ArrayList<>();<a name="line.364"></a>
+<span class="sourceLineNo">365</span> for (HFileDeleteTask task : largeFileQueue) {<a name="line.365"></a>
+<span class="sourceLineNo">366</span> leftOverTasks.add(task);<a name="line.366"></a>
+<span class="sourceLineNo">367</span> }<a name="line.367"></a>
+<span class="sourceLineNo">368</span> for (HFileDeleteTask task : smallFileQueue) {<a name="line.368"></a>
+<span class="sourceLineNo">369</span> leftOverTasks.add(task);<a name="line.369"></a>
+<span class="sourceLineNo">370</span> }<a name="line.370"></a>
+<span class="sourceLineNo">371</span> largeFileQueue = new LinkedBlockingQueue<HFileCleaner.HFileDeleteTask>(largeQueueSize);<a name="line.371"></a>
+<span class="sourceLineNo">372</span> smallFileQueue = new LinkedBlockingQueue<HFileCleaner.HFileDeleteTask>(smallQueueSize);<a name="line.372"></a>
+<span class="sourceLineNo">373</span> threads.clear();<a name="line.373"></a>
+<span class="sourceLineNo">374</span> builder.append("; new throttle point: ").append(throttlePoint).append(", largeQueueSize: ")<a name="line.374"></a>
+<span class="sourceLineNo">375</span> .append(largeQueueSize).append(", smallQueueSize: ").append(smallQueueSize);<a name="line.375"></a>
+<span class="sourceLineNo">376</span> LOG.debug(builder.toString());<a name="line.376"></a>
+<span class="sourceLineNo">377</span> startHFileDeleteThreads();<a name="line.377"></a>
+<span class="sourceLineNo">378</span> // re-dispatch the left over tasks<a name="line.378"></a>
+<span class="sourceLineNo">379</span> for (HFileDeleteTask task : leftOverTasks) {<a name="line.379"></a>
+<span class="sourceLineNo">380</span> dispatch(task);<a name="line.380"></a>
+<span class="sourceLineNo">381</span> }<a name="line.381"></a>
+<span class="sourceLineNo">382</span> }<a name="line.382"></a>
+<span class="sourceLineNo">383</span>}<a name="line.383"></a>