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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/06 14:53:57 UTC
[02/11] hbase-site git commit: Published site at
a31458bdee4353d99682cb4e108e265ec45f8944.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/bd4d10ee/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/IOTestProvider.IOTestWriter.html
----------------------------------------------------------------------
diff --git a/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/IOTestProvider.IOTestWriter.html b/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/IOTestProvider.IOTestWriter.html
index 080823f..1b350c9 100644
--- a/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/IOTestProvider.IOTestWriter.html
+++ b/testdevapidocs/src-html/org/apache/hadoop/hbase/wal/IOTestProvider.IOTestWriter.html
@@ -35,265 +35,268 @@
<span class="sourceLineNo">027</span>import java.util.Collection;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import java.util.Collections;<a name="line.28"></a>
<span class="sourceLineNo">029</span>import java.util.List;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.conf.Configuration;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.fs.FileSystem;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.fs.Path;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HConstants;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>// imports for things that haven't moved from regionserver.wal yet.<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.regionserver.wal.FSHLog;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.regionserver.wal.ProtobufLogWriter;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.slf4j.Logger;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.slf4j.LoggerFactory;<a name="line.43"></a>
-<span class="sourceLineNo">044</span><a name="line.44"></a>
-<span class="sourceLineNo">045</span>/**<a name="line.45"></a>
-<span class="sourceLineNo">046</span> * A WAL Provider that returns a single thread safe WAL that optionally can skip parts of our normal<a name="line.46"></a>
-<span class="sourceLineNo">047</span> * interactions with HDFS.<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * <p><a name="line.48"></a>
-<span class="sourceLineNo">049</span> * This implementation picks a directory in HDFS based on the same mechanisms as the<a name="line.49"></a>
-<span class="sourceLineNo">050</span> * {@link FSHLogProvider}. Users can configure how much interaction we have with HDFS with the<a name="line.50"></a>
-<span class="sourceLineNo">051</span> * configuration property "hbase.wal.iotestprovider.operations". The value should be a comma<a name="line.51"></a>
-<span class="sourceLineNo">052</span> * separated list of allowed operations:<a name="line.52"></a>
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-<span class="sourceLineNo">054</span> * <li><em>append</em> : edits will be written to the underlying filesystem</li><a name="line.54"></a>
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-<span class="sourceLineNo">056</span> * <li><em>fileroll</em> : roll requests will result in creating a new file on the underlying<a name="line.56"></a>
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-<span class="sourceLineNo">058</span> * </ul><a name="line.58"></a>
-<span class="sourceLineNo">059</span> * Additionally, the special cases "all" and "none" are recognized. If ommited, the value defaults<a name="line.59"></a>
-<span class="sourceLineNo">060</span> * to "all." Behavior is undefined if "all" or "none" are paired with additional values. Behavior is<a name="line.60"></a>
-<span class="sourceLineNo">061</span> * also undefined if values not listed above are included.<a name="line.61"></a>
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-<span class="sourceLineNo">071</span>public class IOTestProvider implements WALProvider {<a name="line.71"></a>
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+<span class="sourceLineNo">031</span><a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.conf.Configuration;<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.HConstants;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.RegionInfo;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>// imports for things that haven't moved from regionserver.wal yet.<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.regionserver.wal.FSHLog;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.regionserver.wal.ProtobufLogWriter;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.regionserver.wal.WALActionsListener;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.CommonFSUtils;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.wal.WAL.Entry;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.slf4j.Logger;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.slf4j.LoggerFactory;<a name="line.45"></a>
+<span class="sourceLineNo">046</span><a name="line.46"></a>
+<span class="sourceLineNo">047</span>/**<a name="line.47"></a>
+<span class="sourceLineNo">048</span> * A WAL Provider that returns a single thread safe WAL that optionally can skip parts of our normal<a name="line.48"></a>
+<span class="sourceLineNo">049</span> * interactions with HDFS.<a name="line.49"></a>
+<span class="sourceLineNo">050</span> * <p><a name="line.50"></a>
+<span class="sourceLineNo">051</span> * This implementation picks a directory in HDFS based on the same mechanisms as the<a name="line.51"></a>
+<span class="sourceLineNo">052</span> * {@link FSHLogProvider}. Users can configure how much interaction we have with HDFS with the<a name="line.52"></a>
+<span class="sourceLineNo">053</span> * configuration property "hbase.wal.iotestprovider.operations". The value should be a comma<a name="line.53"></a>
+<span class="sourceLineNo">054</span> * separated list of allowed operations:<a name="line.54"></a>
+<span class="sourceLineNo">055</span> * <ul><a name="line.55"></a>
+<span class="sourceLineNo">056</span> * <li><em>append</em> : edits will be written to the underlying filesystem</li><a name="line.56"></a>
+<span class="sourceLineNo">057</span> * <li><em>sync</em> : wal syncs will result in hflush calls</li><a name="line.57"></a>
+<span class="sourceLineNo">058</span> * <li><em>fileroll</em> : roll requests will result in creating a new file on the underlying<a name="line.58"></a>
+<span class="sourceLineNo">059</span> * filesystem.</li><a name="line.59"></a>
+<span class="sourceLineNo">060</span> * </ul><a name="line.60"></a>
+<span class="sourceLineNo">061</span> * Additionally, the special cases "all" and "none" are recognized. If ommited, the value defaults<a name="line.61"></a>
+<span class="sourceLineNo">062</span> * to "all." Behavior is undefined if "all" or "none" are paired with additional values. Behavior is<a name="line.62"></a>
+<span class="sourceLineNo">063</span> * also undefined if values not listed above are included.<a name="line.63"></a>
+<span class="sourceLineNo">064</span> * <p><a name="line.64"></a>
+<span class="sourceLineNo">065</span> * Only those operations listed will occur between the returned WAL and HDFS. All others will be<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * no-ops.<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * <p><a name="line.67"></a>
+<span class="sourceLineNo">068</span> * Note that in the case of allowing "append" operations but not allowing "fileroll", the returned<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * WAL will just keep writing to the same file. This won't avoid all costs associated with file<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * management over time, becaue the data set size may result in additional HDFS block allocations.<a name="line.70"></a>
+<span class="sourceLineNo">071</span> */<a name="line.71"></a>
+<span class="sourceLineNo">072</span>@InterfaceAudience.Private<a name="line.72"></a>
+<span class="sourceLineNo">073</span>public class IOTestProvider implements WALProvider {<a name="line.73"></a>
+<span class="sourceLineNo">074</span> private static final Logger LOG = LoggerFactory.getLogger(IOTestProvider.class);<a name="line.74"></a>
+<span class="sourceLineNo">075</span><a name="line.75"></a>
+<span class="sourceLineNo">076</span> private static final String ALLOWED_OPERATIONS = "hbase.wal.iotestprovider.operations";<a name="line.76"></a>
+<span class="sourceLineNo">077</span> private enum AllowedOperations {<a name="line.77"></a>
+<span class="sourceLineNo">078</span> all,<a name="line.78"></a>
+<span class="sourceLineNo">079</span> append,<a name="line.79"></a>
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<span class="sourceLineNo">084</span><a name="line.84"></a>
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<span class="sourceLineNo">086</span><a name="line.86"></a>
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<span class="sourceLineNo">088</span><a name="line.88"></a>
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<span class="sourceLineNo">090</span><a name="line.90"></a>
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+<span class="sourceLineNo">249</span> doSyncs = operations.contains(AllowedOperations.sync.name());<a name="line.249"></a>
+<span class="sourceLineNo">250</span> }<a name="line.250"></a>
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+<span class="sourceLineNo">252</span> " and syncs " + (doSyncs ? "enabled" : "disabled"));<a name="line.252"></a>
+<span class="sourceLineNo">253</span> super.init(fs, path, conf, overwritable, blocksize);<a name="line.253"></a>
+<span class="sourceLineNo">254</span> }<a name="line.254"></a>
+<span class="sourceLineNo">255</span><a name="line.255"></a>
+<span class="sourceLineNo">256</span> @Override<a name="line.256"></a>
+<span class="sourceLineNo">257</span> protected String getWriterClassName() {<a name="line.257"></a>
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+<span class="sourceLineNo">259</span> }<a name="line.259"></a>
+<span class="sourceLineNo">260</span><a name="line.260"></a>
+<span class="sourceLineNo">261</span> @Override<a name="line.261"></a>
+<span class="sourceLineNo">262</span> public void append(Entry entry) throws IOException {<a name="line.262"></a>
+<span class="sourceLineNo">263</span> if (doAppends) {<a name="line.263"></a>
+<span class="sourceLineNo">264</span> super.append(entry);<a name="line.264"></a>
+<span class="sourceLineNo">265</span> }<a name="line.265"></a>
+<span class="sourceLineNo">266</span> }<a name="line.266"></a>
+<span class="sourceLineNo">267</span><a name="line.267"></a>
+<span class="sourceLineNo">268</span> @Override<a name="line.268"></a>
+<span class="sourceLineNo">269</span> public void sync(boolean forceSync) throws IOException {<a name="line.269"></a>
+<span class="sourceLineNo">270</span> if (doSyncs) {<a name="line.270"></a>
+<span class="sourceLineNo">271</span> super.sync(forceSync);<a name="line.271"></a>
+<span class="sourceLineNo">272</span> }<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> @Override<a name="line.276"></a>
+<span class="sourceLineNo">277</span> public long getNumLogFiles() {<a name="line.277"></a>
+<span class="sourceLineNo">278</span> return this.log.getNumLogFiles();<a name="line.278"></a>
+<span class="sourceLineNo">279</span> }<a name="line.279"></a>
+<span class="sourceLineNo">280</span><a name="line.280"></a>
+<span class="sourceLineNo">281</span> @Override<a name="line.281"></a>
+<span class="sourceLineNo">282</span> public long getLogFileSize() {<a name="line.282"></a>
+<span class="sourceLineNo">283</span> return this.log.getLogFileSize();<a name="line.283"></a>
+<span class="sourceLineNo">284</span> }<a name="line.284"></a>
+<span class="sourceLineNo">285</span><a name="line.285"></a>
+<span class="sourceLineNo">286</span> @Override<a name="line.286"></a>
+<span class="sourceLineNo">287</span> public void addWALActionsListener(WALActionsListener listener) {<a name="line.287"></a>
+<span class="sourceLineNo">288</span> // TODO Implement WALProvider.addWALActionLister<a name="line.288"></a>
+<span class="sourceLineNo">289</span><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>