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From mi...@apache.org
Subject [09/51] [partial] hbase-site git commit: Published site at 7dabcf23e8dd53f563981e1e03f82336fc0a44da.
Date Fri, 04 Mar 2016 17:50:53 GMT
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/3e48e84d/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.FileInfo.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.FileInfo.html b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.FileInfo.html
index 8fd15a0..da22771 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.FileInfo.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/io/hfile/HFile.FileInfo.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>
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+<span class="sourceLineNo">253</span>    protected CellComparator comparator = <a name="line.253"></a>
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+<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>
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+<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>
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+<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>
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+<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>
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+<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>
+<span class="sourceLineNo">296</span>      this.shouldDropBehind = shouldDropBehind;<a name="line.296"></a>
+<span class="sourceLineNo">297</span>      return this;<a name="line.297"></a>
+<span class="sourceLineNo">298</span>    }<a name="line.298"></a>
 <span class="sourceLineNo">299</span><a name="line.299"></a>
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-<span class="sourceLineNo">885</span>   * indicate that this is not a software error, but corrupted input.<a name="line.885"></a>
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+<span class="sourceLineNo">303</span>        throw new AssertionError("Please specify exactly one of " +<a name="line.303"></a>
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+<span class="sourceLineNo">305</span>      }<a name="line.305"></a>
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+<span class="sourceLineNo">310</span>        } catch (UnsupportedOperationException uoe) {<a name="line.310"></a>
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+<span class="sourceLineNo">314</span>      }<a name="line.314"></a>
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+<span class="sourceLineNo">327</span><a name="line.327"></a>
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+<span class="sourceLineNo">331</span>   * returned factory.<a name="line.331"></a>
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+<span class="sourceLineNo">372</span>     * @param isCompaction is this block being read as part of a compaction<a name="line.372"></a>
+<span class="sourceLineNo">373</span>     * @param expectedBloc

<TRUNCATED>

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