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Posted to commits@hbase.apache.org by mi...@apache.org on 2016/03/04 18:50:51 UTC
[07/51] [partial] hbase-site git commit: Published site at
7dabcf23e8dd53f563981e1e03f82336fc0a44da.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3e48e84d/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.Writer.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.Writer.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.Writer.html
index 8fd15a0..da22771 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.Writer.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.Writer.html
@@ -186,741 +186,742 @@
<span class="sourceLineNo">178</span> * The number of bytes per checksum.<a name="line.178"></a>
<span class="sourceLineNo">179</span> */<a name="line.179"></a>
<span class="sourceLineNo">180</span> public static final int DEFAULT_BYTES_PER_CHECKSUM = 16 * 1024;<a name="line.180"></a>
-<span class="sourceLineNo">181</span> // For measuring number of checksum failures<a name="line.181"></a>
-<span class="sourceLineNo">182</span> static final Counter checksumFailures = new Counter();<a name="line.182"></a>
-<span class="sourceLineNo">183</span><a name="line.183"></a>
-<span class="sourceLineNo">184</span> // for test purpose<a name="line.184"></a>
-<span class="sourceLineNo">185</span> public static final Counter dataBlockReadCnt = new Counter();<a name="line.185"></a>
-<span class="sourceLineNo">186</span><a name="line.186"></a>
-<span class="sourceLineNo">187</span> /**<a name="line.187"></a>
-<span class="sourceLineNo">188</span> * Number of checksum verification failures. It also<a name="line.188"></a>
-<span class="sourceLineNo">189</span> * clears the counter.<a name="line.189"></a>
-<span class="sourceLineNo">190</span> */<a name="line.190"></a>
-<span class="sourceLineNo">191</span> public static final long getChecksumFailuresCount() {<a name="line.191"></a>
-<span class="sourceLineNo">192</span> long count = checksumFailures.get();<a name="line.192"></a>
-<span class="sourceLineNo">193</span> checksumFailures.set(0);<a name="line.193"></a>
-<span class="sourceLineNo">194</span> return count;<a name="line.194"></a>
-<span class="sourceLineNo">195</span> }<a name="line.195"></a>
-<span class="sourceLineNo">196</span><a name="line.196"></a>
-<span class="sourceLineNo">197</span> /** API required to write an {@link HFile} */<a name="line.197"></a>
-<span class="sourceLineNo">198</span> public interface Writer extends Closeable {<a name="line.198"></a>
-<span class="sourceLineNo">199</span> /** Max memstore (mvcc) timestamp in FileInfo */<a name="line.199"></a>
-<span class="sourceLineNo">200</span> public static final byte [] MAX_MEMSTORE_TS_KEY = Bytes.toBytes("MAX_MEMSTORE_TS_KEY");<a name="line.200"></a>
-<span class="sourceLineNo">201</span><a name="line.201"></a>
-<span class="sourceLineNo">202</span> /** Add an element to the file info map. */<a name="line.202"></a>
-<span class="sourceLineNo">203</span> void appendFileInfo(byte[] key, byte[] value) throws IOException;<a name="line.203"></a>
-<span class="sourceLineNo">204</span><a name="line.204"></a>
-<span class="sourceLineNo">205</span> void append(Cell cell) throws IOException;<a name="line.205"></a>
-<span class="sourceLineNo">206</span><a name="line.206"></a>
-<span class="sourceLineNo">207</span> /** @return the path to this {@link HFile} */<a name="line.207"></a>
-<span class="sourceLineNo">208</span> Path getPath();<a name="line.208"></a>
-<span class="sourceLineNo">209</span><a name="line.209"></a>
-<span class="sourceLineNo">210</span> /**<a name="line.210"></a>
-<span class="sourceLineNo">211</span> * Adds an inline block writer such as a multi-level block index writer or<a name="line.211"></a>
-<span class="sourceLineNo">212</span> * a compound Bloom filter writer.<a name="line.212"></a>
-<span class="sourceLineNo">213</span> */<a name="line.213"></a>
-<span class="sourceLineNo">214</span> void addInlineBlockWriter(InlineBlockWriter bloomWriter);<a name="line.214"></a>
-<span class="sourceLineNo">215</span><a name="line.215"></a>
-<span class="sourceLineNo">216</span> // The below three methods take Writables. We'd like to undo Writables but undoing the below would be pretty<a name="line.216"></a>
-<span class="sourceLineNo">217</span> // painful. Could take a byte [] or a Message but we want to be backward compatible around hfiles so would need<a name="line.217"></a>
-<span class="sourceLineNo">218</span> // to map between Message and Writable or byte [] and current Writable serialization. This would be a bit of work<a name="line.218"></a>
-<span class="sourceLineNo">219</span> // to little gain. Thats my thinking at moment. St.Ack 20121129<a name="line.219"></a>
-<span class="sourceLineNo">220</span><a name="line.220"></a>
-<span class="sourceLineNo">221</span> void appendMetaBlock(String bloomFilterMetaKey, Writable metaWriter);<a name="line.221"></a>
-<span class="sourceLineNo">222</span><a name="line.222"></a>
-<span class="sourceLineNo">223</span> /**<a name="line.223"></a>
-<span class="sourceLineNo">224</span> * Store general Bloom filter in the file. This does not deal with Bloom filter<a name="line.224"></a>
-<span class="sourceLineNo">225</span> * internals but is necessary, since Bloom filters are stored differently<a name="line.225"></a>
-<span class="sourceLineNo">226</span> * in HFile version 1 and version 2.<a name="line.226"></a>
-<span class="sourceLineNo">227</span> */<a name="line.227"></a>
-<span class="sourceLineNo">228</span> void addGeneralBloomFilter(BloomFilterWriter bfw);<a name="line.228"></a>
-<span class="sourceLineNo">229</span><a name="line.229"></a>
-<span class="sourceLineNo">230</span> /**<a name="line.230"></a>
-<span class="sourceLineNo">231</span> * Store delete family Bloom filter in the file, which is only supported in<a name="line.231"></a>
-<span class="sourceLineNo">232</span> * HFile V2.<a name="line.232"></a>
-<span class="sourceLineNo">233</span> */<a name="line.233"></a>
-<span class="sourceLineNo">234</span> void addDeleteFamilyBloomFilter(BloomFilterWriter bfw) throws IOException;<a name="line.234"></a>
-<span class="sourceLineNo">235</span><a name="line.235"></a>
-<span class="sourceLineNo">236</span> /**<a name="line.236"></a>
-<span class="sourceLineNo">237</span> * Return the file context for the HFile this writer belongs to<a name="line.237"></a>
-<span class="sourceLineNo">238</span> */<a name="line.238"></a>
-<span class="sourceLineNo">239</span> HFileContext getFileContext();<a name="line.239"></a>
-<span class="sourceLineNo">240</span> }<a name="line.240"></a>
-<span class="sourceLineNo">241</span><a name="line.241"></a>
-<span class="sourceLineNo">242</span> /**<a name="line.242"></a>
-<span class="sourceLineNo">243</span> * This variety of ways to construct writers is used throughout the code, and<a name="line.243"></a>
-<span class="sourceLineNo">244</span> * we want to be able to swap writer implementations.<a name="line.244"></a>
-<span class="sourceLineNo">245</span> */<a name="line.245"></a>
-<span class="sourceLineNo">246</span> public static class WriterFactory {<a name="line.246"></a>
-<span class="sourceLineNo">247</span> protected final Configuration conf;<a name="line.247"></a>
-<span class="sourceLineNo">248</span> protected final CacheConfig cacheConf;<a name="line.248"></a>
-<span class="sourceLineNo">249</span> protected FileSystem fs;<a name="line.249"></a>
-<span class="sourceLineNo">250</span> protected Path path;<a name="line.250"></a>
-<span class="sourceLineNo">251</span> protected FSDataOutputStream ostream;<a name="line.251"></a>
-<span class="sourceLineNo">252</span> protected CellComparator comparator = <a name="line.252"></a>
-<span class="sourceLineNo">253</span> CellComparator.COMPARATOR;<a name="line.253"></a>
-<span class="sourceLineNo">254</span> protected InetSocketAddress[] favoredNodes;<a name="line.254"></a>
-<span class="sourceLineNo">255</span> private HFileContext fileContext;<a name="line.255"></a>
-<span class="sourceLineNo">256</span> protected boolean shouldDropBehind = false;<a name="line.256"></a>
-<span class="sourceLineNo">257</span><a name="line.257"></a>
-<span class="sourceLineNo">258</span> WriterFactory(Configuration conf, CacheConfig cacheConf) {<a name="line.258"></a>
-<span class="sourceLineNo">259</span> this.conf = conf;<a name="line.259"></a>
-<span class="sourceLineNo">260</span> this.cacheConf = cacheConf;<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> public WriterFactory withPath(FileSystem fs, Path path) {<a name="line.263"></a>
-<span class="sourceLineNo">264</span> Preconditions.checkNotNull(fs);<a name="line.264"></a>
-<span class="sourceLineNo">265</span> Preconditions.checkNotNull(path);<a name="line.265"></a>
-<span class="sourceLineNo">266</span> this.fs = fs;<a name="line.266"></a>
-<span class="sourceLineNo">267</span> this.path = path;<a name="line.267"></a>
-<span class="sourceLineNo">268</span> return this;<a name="line.268"></a>
-<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> public WriterFactory withOutputStream(FSDataOutputStream ostream) {<a name="line.271"></a>
-<span class="sourceLineNo">272</span> Preconditions.checkNotNull(ostream);<a name="line.272"></a>
-<span class="sourceLineNo">273</span> this.ostream = ostream;<a name="line.273"></a>
-<span class="sourceLineNo">274</span> return this;<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> public WriterFactory withComparator(CellComparator comparator) {<a name="line.277"></a>
-<span class="sourceLineNo">278</span> Preconditions.checkNotNull(comparator);<a name="line.278"></a>
-<span class="sourceLineNo">279</span> this.comparator = comparator;<a name="line.279"></a>
-<span class="sourceLineNo">280</span> return this;<a name="line.280"></a>
-<span class="sourceLineNo">281</span> }<a name="line.281"></a>
-<span class="sourceLineNo">282</span><a name="line.282"></a>
-<span class="sourceLineNo">283</span> public WriterFactory withFavoredNodes(InetSocketAddress[] favoredNodes) {<a name="line.283"></a>
-<span class="sourceLineNo">284</span> // Deliberately not checking for null here.<a name="line.284"></a>
-<span class="sourceLineNo">285</span> this.favoredNodes = favoredNodes;<a name="line.285"></a>
-<span class="sourceLineNo">286</span> return this;<a name="line.286"></a>
-<span class="sourceLineNo">287</span> }<a name="line.287"></a>
-<span class="sourceLineNo">288</span><a name="line.288"></a>
-<span class="sourceLineNo">289</span> public WriterFactory withFileContext(HFileContext fileContext) {<a name="line.289"></a>
-<span class="sourceLineNo">290</span> this.fileContext = fileContext;<a name="line.290"></a>
-<span class="sourceLineNo">291</span> return this;<a name="line.291"></a>
-<span class="sourceLineNo">292</span> }<a name="line.292"></a>
-<span class="sourceLineNo">293</span><a name="line.293"></a>
-<span class="sourceLineNo">294</span> public WriterFactory withShouldDropCacheBehind(boolean shouldDropBehind) {<a name="line.294"></a>
-<span class="sourceLineNo">295</span> this.shouldDropBehind = shouldDropBehind;<a name="line.295"></a>
-<span class="sourceLineNo">296</span> return this;<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">181</span><a name="line.181"></a>
+<span class="sourceLineNo">182</span> // For measuring number of checksum failures<a name="line.182"></a>
+<span class="sourceLineNo">183</span> static final Counter CHECKSUM_FAILURES = new Counter();<a name="line.183"></a>
+<span class="sourceLineNo">184</span><a name="line.184"></a>
+<span class="sourceLineNo">185</span> // For tests. Gets incremented when we read a block whether from HDFS or from Cache.<a name="line.185"></a>
+<span class="sourceLineNo">186</span> public static final Counter DATABLOCK_READ_COUNT = new Counter();<a name="line.186"></a>
+<span class="sourceLineNo">187</span><a name="line.187"></a>
+<span class="sourceLineNo">188</span> /**<a name="line.188"></a>
+<span class="sourceLineNo">189</span> * Number of checksum verification failures. It also<a name="line.189"></a>
+<span class="sourceLineNo">190</span> * clears the counter.<a name="line.190"></a>
+<span class="sourceLineNo">191</span> */<a name="line.191"></a>
+<span class="sourceLineNo">192</span> public static final long getChecksumFailuresCount() {<a name="line.192"></a>
+<span class="sourceLineNo">193</span> long count = CHECKSUM_FAILURES.get();<a name="line.193"></a>
+<span class="sourceLineNo">194</span> CHECKSUM_FAILURES.set(0);<a name="line.194"></a>
+<span class="sourceLineNo">195</span> return count;<a name="line.195"></a>
+<span class="sourceLineNo">196</span> }<a name="line.196"></a>
+<span class="sourceLineNo">197</span><a name="line.197"></a>
+<span class="sourceLineNo">198</span> /** API required to write an {@link HFile} */<a name="line.198"></a>
+<span class="sourceLineNo">199</span> public interface Writer extends Closeable {<a name="line.199"></a>
+<span class="sourceLineNo">200</span> /** Max memstore (mvcc) timestamp in FileInfo */<a name="line.200"></a>
+<span class="sourceLineNo">201</span> public static final byte [] MAX_MEMSTORE_TS_KEY = Bytes.toBytes("MAX_MEMSTORE_TS_KEY");<a name="line.201"></a>
+<span class="sourceLineNo">202</span><a name="line.202"></a>
+<span class="sourceLineNo">203</span> /** Add an element to the file info map. */<a name="line.203"></a>
+<span class="sourceLineNo">204</span> void appendFileInfo(byte[] key, byte[] value) throws IOException;<a name="line.204"></a>
+<span class="sourceLineNo">205</span><a name="line.205"></a>
+<span class="sourceLineNo">206</span> void append(Cell cell) throws IOException;<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span> /** @return the path to this {@link HFile} */<a name="line.208"></a>
+<span class="sourceLineNo">209</span> Path getPath();<a name="line.209"></a>
+<span class="sourceLineNo">210</span><a name="line.210"></a>
+<span class="sourceLineNo">211</span> /**<a name="line.211"></a>
+<span class="sourceLineNo">212</span> * Adds an inline block writer such as a multi-level block index writer or<a name="line.212"></a>
+<span class="sourceLineNo">213</span> * a compound Bloom filter writer.<a name="line.213"></a>
+<span class="sourceLineNo">214</span> */<a name="line.214"></a>
+<span class="sourceLineNo">215</span> void addInlineBlockWriter(InlineBlockWriter bloomWriter);<a name="line.215"></a>
+<span class="sourceLineNo">216</span><a name="line.216"></a>
+<span class="sourceLineNo">217</span> // The below three methods take Writables. We'd like to undo Writables but undoing the below would be pretty<a name="line.217"></a>
+<span class="sourceLineNo">218</span> // painful. Could take a byte [] or a Message but we want to be backward compatible around hfiles so would need<a name="line.218"></a>
+<span class="sourceLineNo">219</span> // to map between Message and Writable or byte [] and current Writable serialization. This would be a bit of work<a name="line.219"></a>
+<span class="sourceLineNo">220</span> // to little gain. Thats my thinking at moment. St.Ack 20121129<a name="line.220"></a>
+<span class="sourceLineNo">221</span><a name="line.221"></a>
+<span class="sourceLineNo">222</span> void appendMetaBlock(String bloomFilterMetaKey, Writable metaWriter);<a name="line.222"></a>
+<span class="sourceLineNo">223</span><a name="line.223"></a>
+<span class="sourceLineNo">224</span> /**<a name="line.224"></a>
+<span class="sourceLineNo">225</span> * Store general Bloom filter in the file. This does not deal with Bloom filter<a name="line.225"></a>
+<span class="sourceLineNo">226</span> * internals but is necessary, since Bloom filters are stored differently<a name="line.226"></a>
+<span class="sourceLineNo">227</span> * in HFile version 1 and version 2.<a name="line.227"></a>
+<span class="sourceLineNo">228</span> */<a name="line.228"></a>
+<span class="sourceLineNo">229</span> void addGeneralBloomFilter(BloomFilterWriter bfw);<a name="line.229"></a>
+<span class="sourceLineNo">230</span><a name="line.230"></a>
+<span class="sourceLineNo">231</span> /**<a name="line.231"></a>
+<span class="sourceLineNo">232</span> * Store delete family Bloom filter in the file, which is only supported in<a name="line.232"></a>
+<span class="sourceLineNo">233</span> * HFile V2.<a name="line.233"></a>
+<span class="sourceLineNo">234</span> */<a name="line.234"></a>
+<span class="sourceLineNo">235</span> void addDeleteFamilyBloomFilter(BloomFilterWriter bfw) throws IOException;<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> * Return the file context for the HFile this writer belongs to<a name="line.238"></a>
+<span class="sourceLineNo">239</span> */<a name="line.239"></a>
+<span class="sourceLineNo">240</span> HFileContext getFileContext();<a name="line.240"></a>
+<span class="sourceLineNo">241</span> }<a name="line.241"></a>
+<span class="sourceLineNo">242</span><a name="line.242"></a>
+<span class="sourceLineNo">243</span> /**<a name="line.243"></a>
+<span class="sourceLineNo">244</span> * This variety of ways to construct writers is used throughout the code, and<a name="line.244"></a>
+<span class="sourceLineNo">245</span> * we want to be able to swap writer implementations.<a name="line.245"></a>
+<span class="sourceLineNo">246</span> */<a name="line.246"></a>
+<span class="sourceLineNo">247</span> public static class WriterFactory {<a name="line.247"></a>
+<span class="sourceLineNo">248</span> protected final Configuration conf;<a name="line.248"></a>
+<span class="sourceLineNo">249</span> protected final CacheConfig cacheConf;<a name="line.249"></a>
+<span class="sourceLineNo">250</span> protected FileSystem fs;<a name="line.250"></a>
+<span class="sourceLineNo">251</span> protected Path path;<a name="line.251"></a>
+<span class="sourceLineNo">252</span> protected FSDataOutputStream ostream;<a name="line.252"></a>
+<span class="sourceLineNo">253</span> protected CellComparator comparator = <a name="line.253"></a>
+<span class="sourceLineNo">254</span> CellComparator.COMPARATOR;<a name="line.254"></a>
+<span class="sourceLineNo">255</span> protected InetSocketAddress[] favoredNodes;<a name="line.255"></a>
+<span class="sourceLineNo">256</span> private HFileContext fileContext;<a name="line.256"></a>
+<span class="sourceLineNo">257</span> protected boolean shouldDropBehind = false;<a name="line.257"></a>
+<span class="sourceLineNo">258</span><a name="line.258"></a>
+<span class="sourceLineNo">259</span> WriterFactory(Configuration conf, CacheConfig cacheConf) {<a name="line.259"></a>
+<span class="sourceLineNo">260</span> this.conf = conf;<a name="line.260"></a>
+<span class="sourceLineNo">261</span> this.cacheConf = cacheConf;<a name="line.261"></a>
+<span class="sourceLineNo">262</span> }<a name="line.262"></a>
+<span class="sourceLineNo">263</span><a name="line.263"></a>
+<span class="sourceLineNo">264</span> public WriterFactory withPath(FileSystem fs, Path path) {<a name="line.264"></a>
+<span class="sourceLineNo">265</span> Preconditions.checkNotNull(fs);<a name="line.265"></a>
+<span class="sourceLineNo">266</span> Preconditions.checkNotNull(path);<a name="line.266"></a>
+<span class="sourceLineNo">267</span> this.fs = fs;<a name="line.267"></a>
+<span class="sourceLineNo">268</span> this.path = path;<a name="line.268"></a>
+<span class="sourceLineNo">269</span> return this;<a name="line.269"></a>
+<span class="sourceLineNo">270</span> }<a name="line.270"></a>
+<span class="sourceLineNo">271</span><a name="line.271"></a>
+<span class="sourceLineNo">272</span> public WriterFactory withOutputStream(FSDataOutputStream ostream) {<a name="line.272"></a>
+<span class="sourceLineNo">273</span> Preconditions.checkNotNull(ostream);<a name="line.273"></a>
+<span class="sourceLineNo">274</span> this.ostream = ostream;<a name="line.274"></a>
+<span class="sourceLineNo">275</span> return this;<a name="line.275"></a>
+<span class="sourceLineNo">276</span> }<a name="line.276"></a>
+<span class="sourceLineNo">277</span><a name="line.277"></a>
+<span class="sourceLineNo">278</span> public WriterFactory withComparator(CellComparator comparator) {<a name="line.278"></a>
+<span class="sourceLineNo">279</span> Preconditions.checkNotNull(comparator);<a name="line.279"></a>
+<span class="sourceLineNo">280</span> this.comparator = comparator;<a name="line.280"></a>
+<span class="sourceLineNo">281</span> return this;<a name="line.281"></a>
+<span class="sourceLineNo">282</span> }<a name="line.282"></a>
+<span class="sourceLineNo">283</span><a name="line.283"></a>
+<span class="sourceLineNo">284</span> public WriterFactory withFavoredNodes(InetSocketAddress[] favoredNodes) {<a name="line.284"></a>
+<span class="sourceLineNo">285</span> // Deliberately not checking for null here.<a name="line.285"></a>
+<span class="sourceLineNo">286</span> this.favoredNodes = favoredNodes;<a name="line.286"></a>
+<span class="sourceLineNo">287</span> return this;<a name="line.287"></a>
+<span class="sourceLineNo">288</span> }<a name="line.288"></a>
+<span class="sourceLineNo">289</span><a name="line.289"></a>
+<span class="sourceLineNo">290</span> public WriterFactory withFileContext(HFileContext fileContext) {<a name="line.290"></a>
+<span class="sourceLineNo">291</span> this.fileContext = fileContext;<a name="line.291"></a>
+<span class="sourceLineNo">292</span> return this;<a name="line.292"></a>
+<span class="sourceLineNo">293</span> }<a name="line.293"></a>
+<span class="sourceLineNo">294</span><a name="line.294"></a>
+<span class="sourceLineNo">295</span> public WriterFactory withShouldDropCacheBehind(boolean shouldDropBehind) {<a name="line.295"></a>
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+<span class="sourceLineNo">297</span> return this;<a name="line.297"></a>
+<span class="sourceLineNo">298</span> }<a name="line.298"></a>
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-<span class="sourceLineNo">300</span> public Writer create() throws IOException {<a name="line.300"></a>
-<span class="sourceLineNo">301</span> if ((path != null ? 1 : 0) + (ostream != null ? 1 : 0) != 1) {<a name="line.301"></a>
-<span class="sourceLineNo">302</span> throw new AssertionError("Please specify exactly one of " +<a name="line.302"></a>
-<span class="sourceLineNo">303</span> "filesystem/path or path");<a name="line.303"></a>
-<span class="sourceLineNo">304</span> }<a name="line.304"></a>
-<span class="sourceLineNo">305</span> if (path != null) {<a name="line.305"></a>
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