[11/31] hbase-site git commit: Published site at 3e7f724837e35f41153bc3059e8ac507583a9200.

[git-site-role]

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/624dc6ea/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html
index 552067a..a72f1af 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/wal/AbstractFSWAL.html
@@ -371,784 +371,785 @@
 <span class="sourceLineNo">363</span>    }<a name="line.363"></a>
 <span class="sourceLineNo">364</span>    // Now that it exists, set the 
storage policy for the entire directory of wal files related to<a 
name="line.364"></a>
 <span class="sourceLineNo">365</span>    // this FSHLog instance<a 
name="line.365"></a>
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conf, this.walDir, HConstants.WAL_STORAGE_POLICY,<a name="line.366"></a>
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HConstants.DEFAULT_WAL_STORAGE_POLICY);<a name="line.367"></a>
-<span class="sourceLineNo">368</span>    this.walFileSuffix = (suffix == null) 
? "" : URLEncoder.encode(suffix, "UTF8");<a name="line.368"></a>
-<span class="sourceLineNo">369</span>    this.prefixPathStr = new Path(walDir, 
walFilePrefix + WAL_FILE_NAME_DELIMITER).toString();<a name="line.369"></a>
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-<span class="sourceLineNo">371</span>    this.ourFiles = new PathFilter() {<a 
name="line.371"></a>
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-<span class="sourceLineNo">373</span>      public boolean accept(final Path 
fileName) {<a name="line.373"></a>
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dir/&lt;prefix&gt; and end with our suffix<a name="line.374"></a>
-<span class="sourceLineNo">375</span>        final String fileNameString = 
fileName.toString();<a name="line.375"></a>
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(!fileNameString.startsWith(prefixPathStr)) {<a name="line.376"></a>
-<span class="sourceLineNo">377</span>          return false;<a 
name="line.377"></a>
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name="line.379"></a>
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suffix, we need to ensure the filename ends with a timestamp.<a 
name="line.380"></a>
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org.apache.commons.lang3.StringUtils<a name="line.381"></a>
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.isNumeric(fileNameString.substring(prefixPathStr.length()));<a 
name="line.382"></a>
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(!fileNameString.endsWith(walFileSuffix)) {<a name="line.383"></a>
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name="line.384"></a>
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name="line.390"></a>
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CommonFSUtils.listStatus(fs, walDir, ourFiles);<a name="line.391"></a>
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!= walFiles.length) {<a name="line.392"></a>
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already exists within directory " + walDir);<a name="line.393"></a>
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this exist anymore? We have CPs?<a name="line.397"></a>
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name="line.398"></a>
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listeners) {<a name="line.399"></a>
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-<span class="sourceLineNo">403</span>    this.coprocessorHost = new 
WALCoprocessorHost(this, conf);<a name="line.403"></a>
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is 50% of the HDFS block size. Scheduling at 50% of block<a name="line.405"></a>
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before we get to the end-of-block (Block transitions cost<a name="line.406"></a>
-<span class="sourceLineNo">407</span>    // some latency). In hbase-1 we did 
this differently. We scheduled a roll when we hit 95% of<a name="line.407"></a>
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the field has it that this was not enough time for the<a name="line.408"></a>
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end-of-block. So the new accounting makes WALs of about the same<a 
name="line.409"></a>
-<span class="sourceLineNo">410</span>    // size as those made in hbase-1 (to 
prevent surprise), we now have default block size as<a name="line.410"></a>
-<span class="sourceLineNo">411</span>    // 2 times the DFS default: i.e. 2 * 
DFS default block size rolling at 50% full will generally<a name="line.411"></a>
-<span class="sourceLineNo">412</span>    // make similar size logs to 1 * DFS 
default block size rolling at 95% full. See HBASE-19148.<a name="line.412"></a>
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WALUtil.getWALBlockSize(this.conf, this.fs, this.walDir);<a name="line.413"></a>
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conf.getFloat("hbase.regionserver.logroll.multiplier", 0.5f);<a 
name="line.414"></a>
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(long)(this.blocksize * multiplier);<a name="line.415"></a>
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conf.get("hbase.regionserver.maxlogs") != null;<a name="line.417"></a>
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name="line.418"></a>
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LOG.warn("'hbase.regionserver.maxlogs' was deprecated.");<a name="line.419"></a>
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conf.getInt("hbase.regionserver.maxlogs",<a name="line.421"></a>
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calculateMaxLogFiles(conf, logrollsize)));<a name="line.422"></a>
-<span class="sourceLineNo">423</span><a name="line.423"></a>
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blocksize=" + StringUtils.byteDesc(blocksize) + ", rollsize=" +<a 
name="line.424"></a>
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StringUtils.byteDesc(this.logrollsize) + ", prefix=" + this.walFilePrefix + ", 
suffix=" +<a name="line.425"></a>
-<span class="sourceLineNo">426</span>      walFileSuffix + ", logDir=" + 
this.walDir + ", archiveDir=" + this.walArchiveDir);<a name="line.426"></a>
-<span class="sourceLineNo">427</span>    this.slowSyncNs = 
TimeUnit.MILLISECONDS<a name="line.427"></a>
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.toNanos(conf.getInt("hbase.regionserver.hlog.slowsync.ms", 
DEFAULT_SLOW_SYNC_TIME_MS));<a name="line.428"></a>
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TimeUnit.MILLISECONDS<a name="line.429"></a>
-<span class="sourceLineNo">430</span>        
.toNanos(conf.getLong("hbase.regionserver.hlog.sync.timeout", 
DEFAULT_WAL_SYNC_TIMEOUT_MS));<a name="line.430"></a>
-<span class="sourceLineNo">431</span>    int maxHandlersCount = 
conf.getInt(HConstants.REGION_SERVER_HANDLER_COUNT, 200);<a name="line.431"></a>
-<span class="sourceLineNo">432</span>    // Presize our map of SyncFutures by 
handler objects.<a name="line.432"></a>
-<span class="sourceLineNo">433</span>    this.syncFuturesByHandler = new 
ConcurrentHashMap&lt;&gt;(maxHandlersCount);<a name="line.433"></a>
-<span class="sourceLineNo">434</span>    this.implClassName = 
getClass().getSimpleName();<a name="line.434"></a>
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-<span class="sourceLineNo">437</span>  /**<a name="line.437"></a>
-<span class="sourceLineNo">438</span>   * Used to initialize the WAL. Usually 
just call rollWriter to create the first log writer.<a name="line.438"></a>
-<span class="sourceLineNo">439</span>   */<a name="line.439"></a>
-<span class="sourceLineNo">440</span>  public void init() throws IOException 
{<a name="line.440"></a>
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-<span class="sourceLineNo">444</span>  @Override<a name="line.444"></a>
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registerWALActionsListener(WALActionsListener listener) {<a name="line.445"></a>
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-<span class="sourceLineNo">449</span>  @Override<a name="line.449"></a>
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unregisterWALActionsListener(WALActionsListener listener) {<a 
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this.listeners.remove(listener);<a name="line.451"></a>
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getCoprocessorHost() {<a name="line.455"></a>
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encodedRegionName, Set&lt;byte[]&gt; families) {<a name="line.460"></a>
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this.sequenceIdAccounting.startCacheFlush(encodedRegionName, families);<a 
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encodedRegionName, Map&lt;byte[], Long&gt; familyToSeq) {<a name="line.465"></a>
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this.sequenceIdAccounting.startCacheFlush(encodedRegionName, familyToSeq);<a 
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encodedRegionName) {<a name="line.470"></a>
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this.sequenceIdAccounting.completeCacheFlush(encodedRegionName);<a 
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-<span class="sourceLineNo">474</span>  @Override<a name="line.474"></a>
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encodedRegionName) {<a name="line.475"></a>
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this.sequenceIdAccounting.abortCacheFlush(encodedRegionName);<a 
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-<span class="sourceLineNo">478</span><a name="line.478"></a>
-<span class="sourceLineNo">479</span>  @Override<a name="line.479"></a>
-<span class="sourceLineNo">480</span>  public long 
getEarliestMemStoreSeqNum(byte[] encodedRegionName) {<a name="line.480"></a>
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subtle for general usage.<a name="line.481"></a>
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this.sequenceIdAccounting.getLowestSequenceId(encodedRegionName);<a 
name="line.482"></a>
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-<span class="sourceLineNo">484</span><a name="line.484"></a>
-<span class="sourceLineNo">485</span>  @Override<a name="line.485"></a>
-<span class="sourceLineNo">486</span>  public long 
getEarliestMemStoreSeqNum(byte[] encodedRegionName, byte[] familyName) {<a 
name="line.486"></a>
-<span class="sourceLineNo">487</span>    // This method is used by tests and 
for figuring if we should flush or not because our<a name="line.487"></a>
-<span class="sourceLineNo">488</span>    // sequenceids are too old. It is 
also used reporting the master our oldest sequenceid for use<a 
name="line.488"></a>
-<span class="sourceLineNo">489</span>    // figuring what edits can be skipped 
during log recovery. getEarliestMemStoreSequenceId<a name="line.489"></a>
-<span class="sourceLineNo">490</span>    // from this.sequenceIdAccounting is 
looking first in flushingOldestStoreSequenceIds, the<a name="line.490"></a>
-<span class="sourceLineNo">491</span>    // currently flushing sequence ids, 
and if anything found there, it is returning these. This is<a 
name="line.491"></a>
-<span class="sourceLineNo">492</span>    // the right thing to do for the 
reporting oldest sequenceids to master; we won't skip edits if<a 
name="line.492"></a>
-<span class="sourceLineNo">493</span>    // we crash during the flush. For 
figuring what to flush, we might get requeued if our sequence<a 
name="line.493"></a>
-<span class="sourceLineNo">494</span>    // id is old even though we are 
currently flushing. This may mean we do too much flushing.<a 
name="line.494"></a>
-<span class="sourceLineNo">495</span>    return 
this.sequenceIdAccounting.getLowestSequenceId(encodedRegionName, familyName);<a 
name="line.495"></a>
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-<span class="sourceLineNo">497</span><a name="line.497"></a>
-<span class="sourceLineNo">498</span>  @Override<a name="line.498"></a>
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FailedLogCloseException, IOException {<a name="line.499"></a>
-<span class="sourceLineNo">500</span>    return rollWriter(false);<a 
name="line.500"></a>
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-<span class="sourceLineNo">502</span><a name="line.502"></a>
-<span class="sourceLineNo">503</span>  /**<a name="line.503"></a>
-<span class="sourceLineNo">504</span>   * This is a convenience method that 
computes a new filename with a given file-number.<a name="line.504"></a>
-<span class="sourceLineNo">505</span>   * @param filenum to use<a 
name="line.505"></a>
-<span class="sourceLineNo">506</span>   * @return Path<a name="line.506"></a>
-<span class="sourceLineNo">507</span>   */<a name="line.507"></a>
-<span class="sourceLineNo">508</span>  protected Path computeFilename(final 
long filenum) {<a name="line.508"></a>
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name="line.509"></a>
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file number can't be &lt; 0");<a name="line.510"></a>
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WAL_FILE_NAME_DELIMITER + filenum + walFileSuffix;<a name="line.512"></a>
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name="line.513"></a>
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-<span class="sourceLineNo">515</span><a name="line.515"></a>
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computes a new filename with a given using the current WAL<a 
name="line.517"></a>
-<span class="sourceLineNo">518</span>   * file-number<a name="line.518"></a>
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name="line.521"></a>
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computeFilename(this.filenum.get());<a name="line.522"></a>
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-<span class="sourceLineNo">524</span><a name="line.524"></a>
-<span class="sourceLineNo">525</span>  /**<a name="line.525"></a>
-<span class="sourceLineNo">526</span>   * retrieve the next path to use for 
writing. Increments the internal filenum.<a name="line.526"></a>
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IOException {<a name="line.528"></a>
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this.filenum.set(System.currentTimeMillis());<a name="line.529"></a>
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getCurrentFileName();<a name="line.530"></a>
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-<span class="sourceLineNo">532</span>      this.filenum.incrementAndGet();<a 
name="line.532"></a>
-<span class="sourceLineNo">533</span>      newPath = getCurrentFileName();<a 
name="line.533"></a>
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-<span class="sourceLineNo">538</span>  @VisibleForTesting<a 
name="line.538"></a>
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name="line.539"></a>
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this.filenum.get();<a name="line.540"></a>
-<span class="sourceLineNo">541</span>    Path oldPath = null;<a 
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of meta wal filename<a name="line.543"></a>
-<span class="sourceLineNo">544</span>      oldPath = 
computeFilename(currentFilenum);<a name="line.544"></a>
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&lt;= 0, this is first file and null for oldPath if fine?<a name="line.545"></a>
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-<span class="sourceLineNo">550</span>   * Tell listeners about pre log roll.<a 
name="line.550"></a>
-<span class="sourceLineNo">551</span>   */<a name="line.551"></a>
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tellListenersAboutPreLogRoll(final Path oldPath, final Path newPath)<a 
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name="line.553"></a>
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newPath);<a name="line.554"></a>
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this.listeners) {<a name="line.557"></a>
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-<span class="sourceLineNo">564</span>   * Tell listeners about post log 
roll.<a name="line.564"></a>
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-<span class="sourceLineNo">566</span>  private void 
tellListenersAboutPostLogRoll(final Path oldPath, final Path newPath)<a 
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-<span class="sourceLineNo">567</span>      throws IOException {<a 
name="line.567"></a>
-<span class="sourceLineNo">568</span>    if (!this.listeners.isEmpty()) {<a 
name="line.568"></a>
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newPath);<a name="line.570"></a>
-<span class="sourceLineNo">571</span>      }<a name="line.571"></a>
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-<span class="sourceLineNo">573</span><a name="line.573"></a>
-<span class="sourceLineNo">574</span>    coprocessorHost.postWALRoll(oldPath, 
newPath);<a name="line.574"></a>
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conf.get(HConstants.WAL_STORAGE_POLICY, 
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? "" : URLEncoder.encode(suffix, "UTF8");<a name="line.369"></a>
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org.apache.commons.lang3.StringUtils<a name="line.382"></a>
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is 50% of the HDFS block size. Scheduling at 50% of block<a name="line.406"></a>
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this differently. We scheduled a roll when we hit 95% of<a name="line.408"></a>
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end-of-block. So the new accounting makes WALs of about the same<a 
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DFS default block size rolling at 50% full will generally<a name="line.412"></a>
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default block size rolling at 95% full. See HBASE-19148.<a name="line.413"></a>
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LOG.warn("'hbase.regionserver.maxlogs' was deprecated.");<a name="line.420"></a>
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conf.getInt("hbase.regionserver.maxlogs",<a name="line.422"></a>
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calculateMaxLogFiles(conf, logrollsize)));<a name="line.423"></a>
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blocksize=" + StringUtils.byteDesc(blocksize) + ", rollsize=" +<a 
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StringUtils.byteDesc(this.logrollsize) + ", prefix=" + this.walFilePrefix + ", 
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TimeUnit.MILLISECONDS<a name="line.428"></a>
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.toNanos(conf.getInt("hbase.regionserver.hlog.slowsync.ms", 
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TimeUnit.MILLISECONDS<a name="line.430"></a>
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.toNanos(conf.getLong("hbase.regionserver.hlog.sync.timeout", 
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conf.getInt(HConstants.REGION_SERVER_HANDLER_COUNT, 200);<a name="line.432"></a>
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getClass().getSimpleName();<a name="line.435"></a>
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+<span class="sourceLineNo">437</span><a name="line.437"></a>
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