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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/11/29 14:52:55 UTC
[3/8] hbase-site git commit: Published site at
f1f2b5a038d730e68720503331951a3c7edb053d.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/545640e1/devapidocs/src-html/org/apache/hadoop/hbase/mob/MobUtils.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mob/MobUtils.html b/devapidocs/src-html/org/apache/hadoop/hbase/mob/MobUtils.html
index 852695e..c7856c4 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/mob/MobUtils.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/mob/MobUtils.html
@@ -375,652 +375,684 @@
<span class="sourceLineNo">367</span> */<a name="line.367"></a>
<span class="sourceLineNo">368</span> public static Path getMobHome(Configuration conf) {<a name="line.368"></a>
<span class="sourceLineNo">369</span> Path hbaseDir = new Path(conf.get(HConstants.HBASE_DIR));<a name="line.369"></a>
-<span class="sourceLineNo">370</span> return new Path(hbaseDir, MobConstants.MOB_DIR_NAME);<a name="line.370"></a>
+<span class="sourceLineNo">370</span> return getMobHome(hbaseDir);<a name="line.370"></a>
<span class="sourceLineNo">371</span> }<a name="line.371"></a>
<span class="sourceLineNo">372</span><a name="line.372"></a>
<span class="sourceLineNo">373</span> /**<a name="line.373"></a>
-<span class="sourceLineNo">374</span> * Gets the qualified root dir of the mob files.<a name="line.374"></a>
-<span class="sourceLineNo">375</span> * @param conf The current configuration.<a name="line.375"></a>
-<span class="sourceLineNo">376</span> * @return The qualified root dir.<a name="line.376"></a>
-<span class="sourceLineNo">377</span> * @throws IOException<a name="line.377"></a>
+<span class="sourceLineNo">374</span> * Gets the root dir of the mob files under the qualified HBase root dir.<a name="line.374"></a>
+<span class="sourceLineNo">375</span> * It's {rootDir}/mobdir.<a name="line.375"></a>
+<span class="sourceLineNo">376</span> * @param rootDir The qualified path of HBase root directory.<a name="line.376"></a>
+<span class="sourceLineNo">377</span> * @return The root dir of the mob file.<a name="line.377"></a>
<span class="sourceLineNo">378</span> */<a name="line.378"></a>
-<span class="sourceLineNo">379</span> public static Path getQualifiedMobRootDir(Configuration conf) throws IOException {<a name="line.379"></a>
-<span class="sourceLineNo">380</span> Path hbaseDir = new Path(conf.get(HConstants.HBASE_DIR));<a name="line.380"></a>
-<span class="sourceLineNo">381</span> Path mobRootDir = new Path(hbaseDir, MobConstants.MOB_DIR_NAME);<a name="line.381"></a>
-<span class="sourceLineNo">382</span> FileSystem fs = mobRootDir.getFileSystem(conf);<a name="line.382"></a>
-<span class="sourceLineNo">383</span> return mobRootDir.makeQualified(fs.getUri(), fs.getWorkingDirectory());<a name="line.383"></a>
-<span class="sourceLineNo">384</span> }<a name="line.384"></a>
-<span class="sourceLineNo">385</span><a name="line.385"></a>
-<span class="sourceLineNo">386</span> /**<a name="line.386"></a>
-<span class="sourceLineNo">387</span> * Gets the region dir of the mob files.<a name="line.387"></a>
-<span class="sourceLineNo">388</span> * It's {HBASE_DIR}/mobdir/{namespace}/{tableName}/{regionEncodedName}.<a name="line.388"></a>
-<span class="sourceLineNo">389</span> * @param conf The current configuration.<a name="line.389"></a>
-<span class="sourceLineNo">390</span> * @param tableName The current table name.<a name="line.390"></a>
-<span class="sourceLineNo">391</span> * @return The region dir of the mob files.<a name="line.391"></a>
-<span class="sourceLineNo">392</span> */<a name="line.392"></a>
-<span class="sourceLineNo">393</span> public static Path getMobRegionPath(Configuration conf, TableName tableName) {<a name="line.393"></a>
-<span class="sourceLineNo">394</span> Path tablePath = FSUtils.getTableDir(getMobHome(conf), tableName);<a name="line.394"></a>
-<span class="sourceLineNo">395</span> RegionInfo regionInfo = getMobRegionInfo(tableName);<a name="line.395"></a>
-<span class="sourceLineNo">396</span> return new Path(tablePath, regionInfo.getEncodedName());<a name="line.396"></a>
-<span class="sourceLineNo">397</span> }<a name="line.397"></a>
-<span class="sourceLineNo">398</span><a name="line.398"></a>
-<span class="sourceLineNo">399</span> /**<a name="line.399"></a>
-<span class="sourceLineNo">400</span> * Gets the family dir of the mob files.<a name="line.400"></a>
-<span class="sourceLineNo">401</span> * It's {HBASE_DIR}/mobdir/{namespace}/{tableName}/{regionEncodedName}/{columnFamilyName}.<a name="line.401"></a>
-<span class="sourceLineNo">402</span> * @param conf The current configuration.<a name="line.402"></a>
-<span class="sourceLineNo">403</span> * @param tableName The current table name.<a name="line.403"></a>
-<span class="sourceLineNo">404</span> * @param familyName The current family name.<a name="line.404"></a>
-<span class="sourceLineNo">405</span> * @return The family dir of the mob files.<a name="line.405"></a>
-<span class="sourceLineNo">406</span> */<a name="line.406"></a>
-<span class="sourceLineNo">407</span> public static Path getMobFamilyPath(Configuration conf, TableName tableName, String familyName) {<a name="line.407"></a>
-<span class="sourceLineNo">408</span> return new Path(getMobRegionPath(conf, tableName), familyName);<a name="line.408"></a>
-<span class="sourceLineNo">409</span> }<a name="line.409"></a>
-<span class="sourceLineNo">410</span><a name="line.410"></a>
-<span class="sourceLineNo">411</span> /**<a name="line.411"></a>
-<span class="sourceLineNo">412</span> * Gets the family dir of the mob files.<a name="line.412"></a>
-<span class="sourceLineNo">413</span> * It's {HBASE_DIR}/mobdir/{namespace}/{tableName}/{regionEncodedName}/{columnFamilyName}.<a name="line.413"></a>
-<span class="sourceLineNo">414</span> * @param regionPath The path of mob region which is a dummy one.<a name="line.414"></a>
-<span class="sourceLineNo">415</span> * @param familyName The current family name.<a name="line.415"></a>
-<span class="sourceLineNo">416</span> * @return The family dir of the mob files.<a name="line.416"></a>
-<span class="sourceLineNo">417</span> */<a name="line.417"></a>
-<span class="sourceLineNo">418</span> public static Path getMobFamilyPath(Path regionPath, String familyName) {<a name="line.418"></a>
-<span class="sourceLineNo">419</span> return new Path(regionPath, familyName);<a name="line.419"></a>
-<span class="sourceLineNo">420</span> }<a name="line.420"></a>
-<span class="sourceLineNo">421</span><a name="line.421"></a>
-<span class="sourceLineNo">422</span> /**<a name="line.422"></a>
-<span class="sourceLineNo">423</span> * Gets the RegionInfo of the mob files.<a name="line.423"></a>
-<span class="sourceLineNo">424</span> * This is a dummy region. The mob files are not saved in a region in HBase.<a name="line.424"></a>
-<span class="sourceLineNo">425</span> * This is only used in mob snapshot. It's internally used only.<a name="line.425"></a>
-<span class="sourceLineNo">426</span> * @param tableName<a name="line.426"></a>
-<span class="sourceLineNo">427</span> * @return A dummy mob region info.<a name="line.427"></a>
-<span class="sourceLineNo">428</span> */<a name="line.428"></a>
-<span class="sourceLineNo">429</span> public static RegionInfo getMobRegionInfo(TableName tableName) {<a name="line.429"></a>
-<span class="sourceLineNo">430</span> return RegionInfoBuilder.newBuilder(tableName)<a name="line.430"></a>
-<span class="sourceLineNo">431</span> .setStartKey(MobConstants.MOB_REGION_NAME_BYTES)<a name="line.431"></a>
-<span class="sourceLineNo">432</span> .setEndKey(HConstants.EMPTY_END_ROW)<a name="line.432"></a>
-<span class="sourceLineNo">433</span> .setSplit(false)<a name="line.433"></a>
-<span class="sourceLineNo">434</span> .setRegionId(0)<a name="line.434"></a>
-<span class="sourceLineNo">435</span> .build();<a name="line.435"></a>
-<span class="sourceLineNo">436</span> }<a name="line.436"></a>
-<span class="sourceLineNo">437</span><a name="line.437"></a>
-<span class="sourceLineNo">438</span> /**<a name="line.438"></a>
-<span class="sourceLineNo">439</span> * Gets whether the current RegionInfo is a mob one.<a name="line.439"></a>
-<span class="sourceLineNo">440</span> * @param regionInfo The current RegionInfo.<a name="line.440"></a>
-<span class="sourceLineNo">441</span> * @return If true, the current RegionInfo is a mob one.<a name="line.441"></a>
-<span class="sourceLineNo">442</span> */<a name="line.442"></a>
-<span class="sourceLineNo">443</span> public static boolean isMobRegionInfo(RegionInfo regionInfo) {<a name="line.443"></a>
-<span class="sourceLineNo">444</span> return regionInfo == null ? false : getMobRegionInfo(regionInfo.getTable()).getEncodedName()<a name="line.444"></a>
-<span class="sourceLineNo">445</span> .equals(regionInfo.getEncodedName());<a name="line.445"></a>
-<span class="sourceLineNo">446</span> }<a name="line.446"></a>
-<span class="sourceLineNo">447</span><a name="line.447"></a>
-<span class="sourceLineNo">448</span> /**<a name="line.448"></a>
-<span class="sourceLineNo">449</span> * Gets whether the current region name follows the pattern of a mob region name.<a name="line.449"></a>
-<span class="sourceLineNo">450</span> * @param tableName The current table name.<a name="line.450"></a>
-<span class="sourceLineNo">451</span> * @param regionName The current region name.<a name="line.451"></a>
-<span class="sourceLineNo">452</span> * @return True if the current region name follows the pattern of a mob region name.<a name="line.452"></a>
-<span class="sourceLineNo">453</span> */<a name="line.453"></a>
-<span class="sourceLineNo">454</span> public static boolean isMobRegionName(TableName tableName, byte[] regionName) {<a name="line.454"></a>
-<span class="sourceLineNo">455</span> return Bytes.equals(regionName, getMobRegionInfo(tableName).getRegionName());<a name="line.455"></a>
-<span class="sourceLineNo">456</span> }<a name="line.456"></a>
-<span class="sourceLineNo">457</span><a name="line.457"></a>
-<span class="sourceLineNo">458</span> /**<a name="line.458"></a>
-<span class="sourceLineNo">459</span> * Gets the working directory of the mob compaction.<a name="line.459"></a>
-<span class="sourceLineNo">460</span> * @param root The root directory of the mob compaction.<a name="line.460"></a>
-<span class="sourceLineNo">461</span> * @param jobName The current job name.<a name="line.461"></a>
-<span class="sourceLineNo">462</span> * @return The directory of the mob compaction for the current job.<a name="line.462"></a>
-<span class="sourceLineNo">463</span> */<a name="line.463"></a>
-<span class="sourceLineNo">464</span> public static Path getCompactionWorkingPath(Path root, String jobName) {<a name="line.464"></a>
-<span class="sourceLineNo">465</span> return new Path(root, jobName);<a name="line.465"></a>
-<span class="sourceLineNo">466</span> }<a name="line.466"></a>
-<span class="sourceLineNo">467</span><a name="line.467"></a>
-<span class="sourceLineNo">468</span> /**<a name="line.468"></a>
-<span class="sourceLineNo">469</span> * Archives the mob files.<a name="line.469"></a>
-<span class="sourceLineNo">470</span> * @param conf The current configuration.<a name="line.470"></a>
-<span class="sourceLineNo">471</span> * @param fs The current file system.<a name="line.471"></a>
-<span class="sourceLineNo">472</span> * @param tableName The table name.<a name="line.472"></a>
-<span class="sourceLineNo">473</span> * @param tableDir The table directory.<a name="line.473"></a>
-<span class="sourceLineNo">474</span> * @param family The name of the column family.<a name="line.474"></a>
-<span class="sourceLineNo">475</span> * @param storeFiles The files to be deleted.<a name="line.475"></a>
-<span class="sourceLineNo">476</span> * @throws IOException<a name="line.476"></a>
-<span class="sourceLineNo">477</span> */<a name="line.477"></a>
-<span class="sourceLineNo">478</span> public static void removeMobFiles(Configuration conf, FileSystem fs, TableName tableName,<a name="line.478"></a>
-<span class="sourceLineNo">479</span> Path tableDir, byte[] family, Collection<HStoreFile> storeFiles) throws IOException {<a name="line.479"></a>
-<span class="sourceLineNo">480</span> HFileArchiver.archiveStoreFiles(conf, fs, getMobRegionInfo(tableName), tableDir, family,<a name="line.480"></a>
-<span class="sourceLineNo">481</span> storeFiles);<a name="line.481"></a>
-<span class="sourceLineNo">482</span> }<a name="line.482"></a>
-<span class="sourceLineNo">483</span><a name="line.483"></a>
-<span class="sourceLineNo">484</span> /**<a name="line.484"></a>
-<span class="sourceLineNo">485</span> * Creates a mob reference KeyValue.<a name="line.485"></a>
-<span class="sourceLineNo">486</span> * The value of the mob reference KeyValue is mobCellValueSize + mobFileName.<a name="line.486"></a>
-<span class="sourceLineNo">487</span> * @param cell The original Cell.<a name="line.487"></a>
-<span class="sourceLineNo">488</span> * @param fileName The mob file name where the mob reference KeyValue is written.<a name="line.488"></a>
-<span class="sourceLineNo">489</span> * @param tableNameTag The tag of the current table name. It's very important in<a name="line.489"></a>
-<span class="sourceLineNo">490</span> * cloning the snapshot.<a name="line.490"></a>
-<span class="sourceLineNo">491</span> * @return The mob reference KeyValue.<a name="line.491"></a>
-<span class="sourceLineNo">492</span> */<a name="line.492"></a>
-<span class="sourceLineNo">493</span> public static Cell createMobRefCell(Cell cell, byte[] fileName, Tag tableNameTag) {<a name="line.493"></a>
-<span class="sourceLineNo">494</span> // Append the tags to the KeyValue.<a name="line.494"></a>
-<span class="sourceLineNo">495</span> // The key is same, the value is the filename of the mob file<a name="line.495"></a>
-<span class="sourceLineNo">496</span> List<Tag> tags = new ArrayList<>();<a name="line.496"></a>
-<span class="sourceLineNo">497</span> // Add the ref tag as the 1st one.<a name="line.497"></a>
-<span class="sourceLineNo">498</span> tags.add(MobConstants.MOB_REF_TAG);<a name="line.498"></a>
-<span class="sourceLineNo">499</span> // Add the tag of the source table name, this table is where this mob file is flushed<a name="line.499"></a>
-<span class="sourceLineNo">500</span> // from.<a name="line.500"></a>
-<span class="sourceLineNo">501</span> // It's very useful in cloning the snapshot. When reading from the cloning table, we need to<a name="line.501"></a>
-<span class="sourceLineNo">502</span> // find the original mob files by this table name. For details please see cloning<a name="line.502"></a>
-<span class="sourceLineNo">503</span> // snapshot for mob files.<a name="line.503"></a>
-<span class="sourceLineNo">504</span> tags.add(tableNameTag);<a name="line.504"></a>
-<span class="sourceLineNo">505</span> return createMobRefCell(cell, fileName, TagUtil.fromList(tags));<a name="line.505"></a>
-<span class="sourceLineNo">506</span> }<a name="line.506"></a>
-<span class="sourceLineNo">507</span><a name="line.507"></a>
-<span class="sourceLineNo">508</span> public static Cell createMobRefCell(Cell cell, byte[] fileName, byte[] refCellTags) {<a name="line.508"></a>
-<span class="sourceLineNo">509</span> byte[] refValue = Bytes.add(Bytes.toBytes(cell.getValueLength()), fileName);<a name="line.509"></a>
-<span class="sourceLineNo">510</span> return PrivateCellUtil.createCell(cell, refValue, TagUtil.concatTags(refCellTags, cell));<a name="line.510"></a>
-<span class="sourceLineNo">511</span> }<a name="line.511"></a>
-<span class="sourceLineNo">512</span><a name="line.512"></a>
-<span class="sourceLineNo">513</span> /**<a name="line.513"></a>
-<span class="sourceLineNo">514</span> * Creates a writer for the mob file in temp directory.<a name="line.514"></a>
-<span class="sourceLineNo">515</span> * @param conf The current configuration.<a name="line.515"></a>
-<span class="sourceLineNo">516</span> * @param fs The current file system.<a name="line.516"></a>
-<span class="sourceLineNo">517</span> * @param family The descriptor of the current column family.<a name="line.517"></a>
-<span class="sourceLineNo">518</span> * @param date The date string, its format is yyyymmmdd.<a name="line.518"></a>
-<span class="sourceLineNo">519</span> * @param basePath The basic path for a temp directory.<a name="line.519"></a>
-<span class="sourceLineNo">520</span> * @param maxKeyCount The key count.<a name="line.520"></a>
-<span class="sourceLineNo">521</span> * @param compression The compression algorithm.<a name="line.521"></a>
-<span class="sourceLineNo">522</span> * @param startKey The hex string of the start key.<a name="line.522"></a>
-<span class="sourceLineNo">523</span> * @param cacheConfig The current cache config.<a name="line.523"></a>
-<span class="sourceLineNo">524</span> * @param cryptoContext The encryption context.<a name="line.524"></a>
-<span class="sourceLineNo">525</span> * @param isCompaction If the writer is used in compaction.<a name="line.525"></a>
-<span class="sourceLineNo">526</span> * @return The writer for the mob file.<a name="line.526"></a>
-<span class="sourceLineNo">527</span> * @throws IOException<a name="line.527"></a>
-<span class="sourceLineNo">528</span> */<a name="line.528"></a>
-<span class="sourceLineNo">529</span> public static StoreFileWriter createWriter(Configuration conf, FileSystem fs,<a name="line.529"></a>
-<span class="sourceLineNo">530</span> ColumnFamilyDescriptor family, String date, Path basePath, long maxKeyCount,<a name="line.530"></a>
-<span class="sourceLineNo">531</span> Compression.Algorithm compression, String startKey, CacheConfig cacheConfig,<a name="line.531"></a>
-<span class="sourceLineNo">532</span> Encryption.Context cryptoContext, boolean isCompaction)<a name="line.532"></a>
-<span class="sourceLineNo">533</span> throws IOException {<a name="line.533"></a>
-<span class="sourceLineNo">534</span> MobFileName mobFileName = MobFileName.create(startKey, date,<a name="line.534"></a>
-<span class="sourceLineNo">535</span> UUID.randomUUID().toString().replaceAll("-", ""));<a name="line.535"></a>
-<span class="sourceLineNo">536</span> return createWriter(conf, fs, family, mobFileName, basePath, maxKeyCount, compression,<a name="line.536"></a>
-<span class="sourceLineNo">537</span> cacheConfig, cryptoContext, isCompaction);<a name="line.537"></a>
+<span class="sourceLineNo">379</span> public static Path getMobHome(Path rootDir) {<a name="line.379"></a>
+<span class="sourceLineNo">380</span> return new Path(rootDir, MobConstants.MOB_DIR_NAME);<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>
+<span class="sourceLineNo">384</span> * Gets the qualified root dir of the mob files.<a name="line.384"></a>
+<span class="sourceLineNo">385</span> * @param conf The current configuration.<a name="line.385"></a>
+<span class="sourceLineNo">386</span> * @return The qualified root dir.<a name="line.386"></a>
+<span class="sourceLineNo">387</span> * @throws IOException<a name="line.387"></a>
+<span class="sourceLineNo">388</span> */<a name="line.388"></a>
+<span class="sourceLineNo">389</span> public static Path getQualifiedMobRootDir(Configuration conf) throws IOException {<a name="line.389"></a>
+<span class="sourceLineNo">390</span> Path hbaseDir = new Path(conf.get(HConstants.HBASE_DIR));<a name="line.390"></a>
+<span class="sourceLineNo">391</span> Path mobRootDir = new Path(hbaseDir, MobConstants.MOB_DIR_NAME);<a name="line.391"></a>
+<span class="sourceLineNo">392</span> FileSystem fs = mobRootDir.getFileSystem(conf);<a name="line.392"></a>
+<span class="sourceLineNo">393</span> return mobRootDir.makeQualified(fs.getUri(), fs.getWorkingDirectory());<a name="line.393"></a>
+<span class="sourceLineNo">394</span> }<a name="line.394"></a>
+<span class="sourceLineNo">395</span><a name="line.395"></a>
+<span class="sourceLineNo">396</span> /**<a name="line.396"></a>
+<span class="sourceLineNo">397</span> * Gets the table dir of the mob files under the qualified HBase root dir.<a name="line.397"></a>
+<span class="sourceLineNo">398</span> * It's {rootDir}/mobdir/data/${namespace}/${tableName}<a name="line.398"></a>
+<span class="sourceLineNo">399</span> * @param rootDir The qualified path of HBase root directory.<a name="line.399"></a>
+<span class="sourceLineNo">400</span> * @param tableName The name of table.<a name="line.400"></a>
+<span class="sourceLineNo">401</span> * @return The table dir of the mob file.<a name="line.401"></a>
+<span class="sourceLineNo">402</span> */<a name="line.402"></a>
+<span class="sourceLineNo">403</span> public static Path getMobTableDir(Path rootDir, TableName tableName) {<a name="line.403"></a>
+<span class="sourceLineNo">404</span> return FSUtils.getTableDir(getMobHome(rootDir), tableName);<a name="line.404"></a>
+<span class="sourceLineNo">405</span> }<a name="line.405"></a>
+<span class="sourceLineNo">406</span><a name="line.406"></a>
+<span class="sourceLineNo">407</span> /**<a name="line.407"></a>
+<span class="sourceLineNo">408</span> * Gets the region dir of the mob files.<a name="line.408"></a>
+<span class="sourceLineNo">409</span> * It's {HBASE_DIR}/mobdir/data/{namespace}/{tableName}/{regionEncodedName}.<a name="line.409"></a>
+<span class="sourceLineNo">410</span> * @param conf The current configuration.<a name="line.410"></a>
+<span class="sourceLineNo">411</span> * @param tableName The current table name.<a name="line.411"></a>
+<span class="sourceLineNo">412</span> * @return The region dir of the mob files.<a name="line.412"></a>
+<span class="sourceLineNo">413</span> */<a name="line.413"></a>
+<span class="sourceLineNo">414</span> public static Path getMobRegionPath(Configuration conf, TableName tableName) {<a name="line.414"></a>
+<span class="sourceLineNo">415</span> return getMobRegionPath(new Path(conf.get(HConstants.HBASE_DIR)), tableName);<a name="line.415"></a>
+<span class="sourceLineNo">416</span> }<a name="line.416"></a>
+<span class="sourceLineNo">417</span><a name="line.417"></a>
+<span class="sourceLineNo">418</span> /**<a name="line.418"></a>
+<span class="sourceLineNo">419</span> * Gets the region dir of the mob files under the specified root dir.<a name="line.419"></a>
+<span class="sourceLineNo">420</span> * It's {rootDir}/mobdir/data/{namespace}/{tableName}/{regionEncodedName}.<a name="line.420"></a>
+<span class="sourceLineNo">421</span> * @param rootDir The qualified path of HBase root directory.<a name="line.421"></a>
+<span class="sourceLineNo">422</span> * @param tableName The current table name.<a name="line.422"></a>
+<span class="sourceLineNo">423</span> * @return The region dir of the mob files.<a name="line.423"></a>
+<span class="sourceLineNo">424</span> */<a name="line.424"></a>
+<span class="sourceLineNo">425</span> public static Path getMobRegionPath(Path rootDir, TableName tableName) {<a name="line.425"></a>
+<span class="sourceLineNo">426</span> Path tablePath = FSUtils.getTableDir(getMobHome(rootDir), tableName);<a name="line.426"></a>
+<span class="sourceLineNo">427</span> RegionInfo regionInfo = getMobRegionInfo(tableName);<a name="line.427"></a>
+<span class="sourceLineNo">428</span> return new Path(tablePath, regionInfo.getEncodedName());<a name="line.428"></a>
+<span class="sourceLineNo">429</span> }<a name="line.429"></a>
+<span class="sourceLineNo">430</span><a name="line.430"></a>
+<span class="sourceLineNo">431</span> /**<a name="line.431"></a>
+<span class="sourceLineNo">432</span> * Gets the family dir of the mob files.<a name="line.432"></a>
+<span class="sourceLineNo">433</span> * It's {HBASE_DIR}/mobdir/{namespace}/{tableName}/{regionEncodedName}/{columnFamilyName}.<a name="line.433"></a>
+<span class="sourceLineNo">434</span> * @param conf The current configuration.<a name="line.434"></a>
+<span class="sourceLineNo">435</span> * @param tableName The current table name.<a name="line.435"></a>
+<span class="sourceLineNo">436</span> * @param familyName The current family name.<a name="line.436"></a>
+<span class="sourceLineNo">437</span> * @return The family dir of the mob files.<a name="line.437"></a>
+<span class="sourceLineNo">438</span> */<a name="line.438"></a>
+<span class="sourceLineNo">439</span> public static Path getMobFamilyPath(Configuration conf, TableName tableName, String familyName) {<a name="line.439"></a>
+<span class="sourceLineNo">440</span> return new Path(getMobRegionPath(conf, tableName), familyName);<a name="line.440"></a>
+<span class="sourceLineNo">441</span> }<a name="line.441"></a>
+<span class="sourceLineNo">442</span><a name="line.442"></a>
+<span class="sourceLineNo">443</span> /**<a name="line.443"></a>
+<span class="sourceLineNo">444</span> * Gets the family dir of the mob files.<a name="line.444"></a>
+<span class="sourceLineNo">445</span> * It's {HBASE_DIR}/mobdir/{namespace}/{tableName}/{regionEncodedName}/{columnFamilyName}.<a name="line.445"></a>
+<span class="sourceLineNo">446</span> * @param regionPath The path of mob region which is a dummy one.<a name="line.446"></a>
+<span class="sourceLineNo">447</span> * @param familyName The current family name.<a name="line.447"></a>
+<span class="sourceLineNo">448</span> * @return The family dir of the mob files.<a name="line.448"></a>
+<span class="sourceLineNo">449</span> */<a name="line.449"></a>
+<span class="sourceLineNo">450</span> public static Path getMobFamilyPath(Path regionPath, String familyName) {<a name="line.450"></a>
+<span class="sourceLineNo">451</span> return new Path(regionPath, familyName);<a name="line.451"></a>
+<span class="sourceLineNo">452</span> }<a name="line.452"></a>
+<span class="sourceLineNo">453</span><a name="line.453"></a>
+<span class="sourceLineNo">454</span> /**<a name="line.454"></a>
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+<span class="sourceLineNo">456</span> * This is a dummy region. The mob files are not saved in a region in HBase.<a name="line.456"></a>
+<span class="sourceLineNo">457</span> * This is only used in mob snapshot. It's internally used only.<a name="line.457"></a>
+<span class="sourceLineNo">458</span> * @param tableName<a name="line.458"></a>
+<span class="sourceLineNo">459</span> * @return A dummy mob region info.<a name="line.459"></a>
+<span class="sourceLineNo">460</span> */<a name="line.460"></a>
+<span class="sourceLineNo">461</span> public static RegionInfo getMobRegionInfo(TableName tableName) {<a name="line.461"></a>
+<span class="sourceLineNo">462</span> return RegionInfoBuilder.newBuilder(tableName)<a name="line.462"></a>
+<span class="sourceLineNo">463</span> .setStartKey(MobConstants.MOB_REGION_NAME_BYTES)<a name="line.463"></a>
+<span class="sourceLineNo">464</span> .setEndKey(HConstants.EMPTY_END_ROW)<a name="line.464"></a>
+<span class="sourceLineNo">465</span> .setSplit(false)<a name="line.465"></a>
+<span class="sourceLineNo">466</span> .setRegionId(0)<a name="line.466"></a>
+<span class="sourceLineNo">467</span> .build();<a name="line.467"></a>
+<span class="sourceLineNo">468</span> }<a name="line.468"></a>
+<span class="sourceLineNo">469</span><a name="line.469"></a>
+<span class="sourceLineNo">470</span> /**<a name="line.470"></a>
+<span class="sourceLineNo">471</span> * Gets whether the current RegionInfo is a mob one.<a name="line.471"></a>
+<span class="sourceLineNo">472</span> * @param regionInfo The current RegionInfo.<a name="line.472"></a>
+<span class="sourceLineNo">473</span> * @return If true, the current RegionInfo is a mob one.<a name="line.473"></a>
+<span class="sourceLineNo">474</span> */<a name="line.474"></a>
+<span class="sourceLineNo">475</span> public static boolean isMobRegionInfo(RegionInfo regionInfo) {<a name="line.475"></a>
+<span class="sourceLineNo">476</span> return regionInfo == null ? false : getMobRegionInfo(regionInfo.getTable()).getEncodedName()<a name="line.476"></a>
+<span class="sourceLineNo">477</span> .equals(regionInfo.getEncodedName());<a name="line.477"></a>
+<span class="sourceLineNo">478</span> }<a name="line.478"></a>
+<span class="sourceLineNo">479</span><a name="line.479"></a>
+<span class="sourceLineNo">480</span> /**<a name="line.480"></a>
+<span class="sourceLineNo">481</span> * Gets whether the current region name follows the pattern of a mob region name.<a name="line.481"></a>
+<span class="sourceLineNo">482</span> * @param tableName The current table name.<a name="line.482"></a>
+<span class="sourceLineNo">483</span> * @param regionName The current region name.<a name="line.483"></a>
+<span class="sourceLineNo">484</span> * @return True if the current region name follows the pattern of a mob region name.<a name="line.484"></a>
+<span class="sourceLineNo">485</span> */<a name="line.485"></a>
+<span class="sourceLineNo">486</span> public static boolean isMobRegionName(TableName tableName, byte[] regionName) {<a name="line.486"></a>
+<span class="sourceLineNo">487</span> return Bytes.equals(regionName, getMobRegionInfo(tableName).getRegionName());<a name="line.487"></a>
+<span class="sourceLineNo">488</span> }<a name="line.488"></a>
+<span class="sourceLineNo">489</span><a name="line.489"></a>
+<span class="sourceLineNo">490</span> /**<a name="line.490"></a>
+<span class="sourceLineNo">491</span> * Gets the working directory of the mob compaction.<a name="line.491"></a>
+<span class="sourceLineNo">492</span> * @param root The root directory of the mob compaction.<a name="line.492"></a>
+<span class="sourceLineNo">493</span> * @param jobName The current job name.<a name="line.493"></a>
+<span class="sourceLineNo">494</span> * @return The directory of the mob compaction for the current job.<a name="line.494"></a>
+<span class="sourceLineNo">495</span> */<a name="line.495"></a>
+<span class="sourceLineNo">496</span> public static Path getCompactionWorkingPath(Path root, String jobName) {<a name="line.496"></a>
+<span class="sourceLineNo">497</span> return new Path(root, jobName);<a name="line.497"></a>
+<span class="sourceLineNo">498</span> }<a name="line.498"></a>
+<span class="sourceLineNo">499</span><a name="line.499"></a>
+<span class="sourceLineNo">500</span> /**<a name="line.500"></a>
+<span class="sourceLineNo">501</span> * Archives the mob files.<a name="line.501"></a>
+<span class="sourceLineNo">502</span> * @param conf The current configuration.<a name="line.502"></a>
+<span class="sourceLineNo">503</span> * @param fs The current file system.<a name="line.503"></a>
+<span class="sourceLineNo">504</span> * @param tableName The table name.<a name="line.504"></a>
+<span class="sourceLineNo">505</span> * @param tableDir The table directory.<a name="line.505"></a>
+<span class="sourceLineNo">506</span> * @param family The name of the column family.<a name="line.506"></a>
+<span class="sourceLineNo">507</span> * @param storeFiles The files to be deleted.<a name="line.507"></a>
+<span class="sourceLineNo">508</span> * @throws IOException<a name="line.508"></a>
+<span class="sourceLineNo">509</span> */<a name="line.509"></a>
+<span class="sourceLineNo">510</span> public static void removeMobFiles(Configuration conf, FileSystem fs, TableName tableName,<a name="line.510"></a>
+<span class="sourceLineNo">511</span> Path tableDir, byte[] family, Collection<HStoreFile> storeFiles) throws IOException {<a name="line.511"></a>
+<span class="sourceLineNo">512</span> HFileArchiver.archiveStoreFiles(conf, fs, getMobRegionInfo(tableName), tableDir, family,<a name="line.512"></a>
+<span class="sourceLineNo">513</span> storeFiles);<a name="line.513"></a>
+<span class="sourceLineNo">514</span> }<a name="line.514"></a>
+<span class="sourceLineNo">515</span><a name="line.515"></a>
+<span class="sourceLineNo">516</span> /**<a name="line.516"></a>
+<span class="sourceLineNo">517</span> * Creates a mob reference KeyValue.<a name="line.517"></a>
+<span class="sourceLineNo">518</span> * The value of the mob reference KeyValue is mobCellValueSize + mobFileName.<a name="line.518"></a>
+<span class="sourceLineNo">519</span> * @param cell The original Cell.<a name="line.519"></a>
+<span class="sourceLineNo">520</span> * @param fileName The mob file name where the mob reference KeyValue is written.<a name="line.520"></a>
+<span class="sourceLineNo">521</span> * @param tableNameTag The tag of the current table name. It's very important in<a name="line.521"></a>
+<span class="sourceLineNo">522</span> * cloning the snapshot.<a name="line.522"></a>
+<span class="sourceLineNo">523</span> * @return The mob reference KeyValue.<a name="line.523"></a>
+<span class="sourceLineNo">524</span> */<a name="line.524"></a>
+<span class="sourceLineNo">525</span> public static Cell createMobRefCell(Cell cell, byte[] fileName, Tag tableNameTag) {<a name="line.525"></a>
+<span class="sourceLineNo">526</span> // Append the tags to the KeyValue.<a name="line.526"></a>
+<span class="sourceLineNo">527</span> // The key is same, the value is the filename of the mob file<a name="line.527"></a>
+<span class="sourceLineNo">528</span> List<Tag> tags = new ArrayList<>();<a name="line.528"></a>
+<span class="sourceLineNo">529</span> // Add the ref tag as the 1st one.<a name="line.529"></a>
+<span class="sourceLineNo">530</span> tags.add(MobConstants.MOB_REF_TAG);<a name="line.530"></a>
+<span class="sourceLineNo">531</span> // Add the tag of the source table name, this table is where this mob file is flushed<a name="line.531"></a>
+<span class="sourceLineNo">532</span> // from.<a name="line.532"></a>
+<span class="sourceLineNo">533</span> // It's very useful in cloning the snapshot. When reading from the cloning table, we need to<a name="line.533"></a>
+<span class="sourceLineNo">534</span> // find the original mob files by this table name. For details please see cloning<a name="line.534"></a>
+<span class="sourceLineNo">535</span> // snapshot for mob files.<a name="line.535"></a>
+<span class="sourceLineNo">536</span> tags.add(tableNameTag);<a name="line.536"></a>
+<span class="sourceLineNo">537</span> return createMobRefCell(cell, fileName, TagUtil.fromList(tags));<a name="line.537"></a>
<span class="sourceLineNo">538</span> }<a name="line.538"></a>
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-<span class="sourceLineNo">542</span> * @param conf The current configuration.<a name="line.542"></a>
-<span class="sourceLineNo">543</span> * @param fs The current file system.<a name="line.543"></a>
-<span class="sourceLineNo">544</span> * @param family The descriptor of the current column family.<a name="line.544"></a>
-<span class="sourceLineNo">545</span> * @param basePath The basic path for a temp directory.<a name="line.545"></a>
-<span class="sourceLineNo">546</span> * @param maxKeyCount The key count.<a name="line.546"></a>
-<span class="sourceLineNo">547</span> * @param cacheConfig The current cache config.<a name="line.547"></a>
-<span class="sourceLineNo">548</span> * @param cryptoContext The encryption context.<a name="line.548"></a>
-<span class="sourceLineNo">549</span> * @param isCompaction If the writer is used in compaction.<a name="line.549"></a>
-<span class="sourceLineNo">550</span> * @return The writer for the mob file.<a name="line.550"></a>
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-<span class="sourceLineNo">554</span> ColumnFamilyDescriptor family, Path basePath, long maxKeyCount, CacheConfig cacheConfig,<a name="line.554"></a>
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-<span class="sourceLineNo">559</span> family.getCompactionCompressionType(), cacheConfig, cryptoContext,<a name="line.559"></a>
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-<span class="sourceLineNo">567</span> * @param fs The current file system.<a name="line.567"></a>
-<span class="sourceLineNo">568</span> * @param family The descriptor of the current column family.<a name="line.568"></a>
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-<span class="sourceLineNo">570</span> * @param basePath The basic path for a temp directory.<a name="line.570"></a>
-<span class="sourceLineNo">571</span> * @param maxKeyCount The key count.<a name="line.571"></a>
-<span class="sourceLineNo">572</span> * @param compression The compression algorithm.<a name="line.572"></a>
-<span class="sourceLineNo">573</span> * @param startKey The start key.<a name="line.573"></a>
-<span class="sourceLineNo">574</span> * @param cacheConfig The current cache config.<a name="line.574"></a>
-<span class="sourceLineNo">575</span> * @param cryptoContext The encryption context.<a name="line.575"></a>
-<span class="sourceLineNo">576</span> * @param isCompaction If the writer is used in compaction.<a name="line.576"></a>
-<span class="sourceLineNo">577</span> * @return The writer for the mob file.<a name="line.577"></a>
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-<span class="sourceLineNo">586</span> UUID.randomUUID().toString().replaceAll("-", ""));<a name="line.586"></a>
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-<span class="sourceLineNo">590</span><a name="line.590"></a>
-<span class="sourceLineNo">591</span> /**<a name="line.591"></a>
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-<span class="sourceLineNo">593</span> * @param conf The current configuration.<a name="line.593"></a>
-<span class="sourceLineNo">594</span> * @param fs The current file system.<a name="line.594"></a>
-<span class="sourceLineNo">595</span> * @param family The descriptor of the current column family.<a name="line.595"></a>
-<span class="sourceLineNo">596</span> * @param date The date string, its format is yyyymmmdd.<a name="line.596"></a>
-<span class="sourceLineNo">597</span> * @param basePath The basic path for a temp directory.<a name="line.597"></a>
-<span class="sourceLineNo">598</span> * @param maxKeyCount The key count.<a name="line.598"></a>
-<span class="sourceLineNo">599</span> * @param compression The compression algorithm.<a name="line.599"></a>
-<span class="sourceLineNo">600</span> * @param startKey The start key.<a name="line.600"></a>
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-<span class="sourceLineNo">611</span> String suffix = UUID<a name="line.611"></a>
-<span class="sourceLineNo">612</span> .randomUUID().toString().replaceAll("-", "") + "_del";<a name="line.612"></a>
-<span class="sourceLineNo">613</span> MobFileName mobFileName = MobFileName.create(startKey, date, suffix);<a name="line.613"></a>
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-<span class="sourceLineNo">615</span> cacheConfig, cryptoContext, true);<a name="line.615"></a>
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-<span class="sourceLineNo">621</span> * @param fs The current file system.<a name="line.621"></a>
-<span class="sourceLineNo">622</span> * @param family The descriptor of the current column family.<a name="line.622"></a>
-<span class="sourceLineNo">623</span> * @param mobFileName The mob file name.<a name="line.623"></a>
-<span class="sourceLineNo">624</span> * @param basePath The basic path for a temp directory.<a name="line.624"></a>
-<span class="sourceLineNo">625</span> * @param maxKeyCount The key count.<a name="line.625"></a>
-<span class="sourceLineNo">626</span> * @param compression The compression algorithm.<a name="line.626"></a>
-<span class="sourceLineNo">627</span> * @param cacheConfig The current cache config.<a name="line.627"></a>
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-<span class="sourceLineNo">643</span><a name="line.643"></a>
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-<span class="sourceLineNo">646</span> * @param conf The current configuration.<a name="line.646"></a>
-<span class="sourceLineNo">647</span> * @param fs The current file system.<a name="line.647"></a>
-<span class="sourceLineNo">648</span> * @param family The descriptor of the current column family.<a name="line.648"></a>
-<span class="sourceLineNo">649</span> * @param path The path for a temp directory.<a name="line.649"></a>
-<span class="sourceLineNo">650</span> * @param maxKeyCount The key count.<a name="line.650"></a>
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-<span class="sourceLineNo">652</span> * @param cacheConfig The current cache config.<a name="line.652"></a>
-<span class="sourceLineNo">653</span> * @param cryptoContext The encryption context.<a name="line.653"></a>
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-<span class="sourceLineNo">657</span> * @param bloomType The bloom filter type.<a name="line.657"></a>
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+<span class="sourceLineNo">644</span> .randomUUID().toString().replaceAll("-", "") + "_del";<a name="line.644"></a>
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<TRUNCATED>