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From j...@apache.org
Subject svn commit: r685011 [2/6] - in /hadoop/hbase/branches/0.2: ./ src/java/org/apache/hadoop/hbase/ src/java/org/apache/hadoop/hbase/client/ src/java/org/apache/hadoop/hbase/ipc/ src/test/org/apache/hadoop/hbase/client/
Date Tue, 12 Aug 2008 01:00:37 GMT

Modified: hadoop/hbase/branches/0.2/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/hbase/branches/0.2/CHANGES.txt?rev=685011&r1=685010&r2=685011&view=diff
==============================================================================
--- hadoop/hbase/branches/0.2/CHANGES.txt (original)
+++ hadoop/hbase/branches/0.2/CHANGES.txt Mon Aug 11 18:00:36 2008
@@ -1,980 +1,982 @@
-Hbase Change Log
-
-Release 0.2.1 - Unreleased
-
-  INCOMPATIBLE CHANGES
-  BUG FIXES
-   HBASE-805   Remove unnecessary getRow overloads in HRS (Jonathan Gray via
-               Jim Kellerman) (Fix whitespace changes in HRegionServer)
-   HBASE-811   HTD is not fully copyable (Andrew Purtell via Jim Kellerman)
-   HBASE-729   Client region/metadata cache should have a public method for
-               invalidating entries (Andrew Purtell via Stack)
-
-  IMPROVEMENTS
-   HBASE-801  When a table haven't disable, shell could response in a "user
-              friendly" way.
-   HBASE-816  TableMap should survive USE (Andrew Purtell via Stack)
-
-  NEW FEATURES
-  OPTIMIZATIONS
-
-Release 0.2.0 - August 8, 2008.
-
-  INCOMPATIBLE CHANGES
-   HBASE-584   Names in the filter interface are confusing (Clint Morgan via
-               Jim Kellerman) (API change for filters)
-   HBASE-601   Just remove deprecated methods in HTable; 0.2 is not backward
-               compatible anyways
-   HBASE-82    Row keys should be array of bytes
-   HBASE-76    Purge servers of Text (Done as part of HBASE-82 commit).
-   HBASE-487   Replace hql w/ a hbase-friendly jirb or jython shell
-               Part 1: purge of hql and added raw jirb in its place.
-   HBASE-521   Improve client scanner interface
-   HBASE-288   Add in-memory caching of data. Required update of hadoop to 
-               0.17.0-dev.2008-02-07_12-01-58. (Tom White via Stack) 
-   HBASE-696   Make bloomfilter true/false and self-sizing
-   HBASE-720   clean up inconsistencies around deletes (Izaak Rubin via Stack)
-   HBASE-796   Deprecates Text methods from HTable
-               (Michael Gottesman via Stack)
-
-  BUG FIXES
-   HBASE-574   HBase does not load hadoop native libs (Rong-En Fan via Stack)
-   HBASE-598   Loggging, no .log file; all goes into .out
-   HBASE-622   Remove StaticTestEnvironment and put a log4j.properties in src/test
-   HBASE-624   Master will shut down if number of active region servers is zero
-               even if shutdown was not requested
-   HBASE-629   Split reports incorrect elapsed time
-   HBASE-623   Migration script for hbase-82
-   HBASE-630   Default hbase.rootdir is garbage
-   HBASE-589   Remove references to deprecated methods in Hadoop once
-               hadoop-0.17.0 is released
-   HBASE-638   Purge \r from src
-   HBASE-644   DroppedSnapshotException but RegionServer doesn't restart
-   HBASE-641   Improve master split logging
-   HBASE-642   Splitting log in a hostile environment -- bad hdfs -- we drop
-               write-ahead-log edits
-   HBASE-646   EOFException opening HStoreFile info file (spin on HBASE-645and 550)
-   HBASE-648   If mapfile index is empty, run repair
-   HBASE-640   TestMigrate failing on hudson
-   HBASE-651   Table.commit should throw NoSuchColumnFamilyException if column
-               family doesn't exist
-   HBASE-649   API polluted with default and protected access data members and methods
-   HBASE-650   Add String versions of get, scanner, put in HTable
-   HBASE-656   Do not retry exceptions such as unknown scanner or illegal argument
-   HBASE-659   HLog#cacheFlushLock not cleared; hangs a region
-   HBASE-663   Incorrect sequence number for cache flush
-   HBASE-655   Need programmatic way to add column family: need programmatic way
-               to enable/disable table
-   HBASE-654   API HTable.getMetadata().addFamily shouldn't be exposed to user
-   HBASE-666   UnmodifyableHRegionInfo gives the wrong encoded name
-   HBASE-668   HBASE-533 broke build
-   HBASE-670   Historian deadlocks if regionserver is at global memory boundary
-               and is hosting .META.
-   HBASE-665   Server side scanner doesn't honor stop row
-   HBASE-662   UI in table.jsp gives META locations, not the table's regions
-               location (Jean-Daniel Cryans via Stack)
-   HBASE-676   Bytes.getInt returns a long (Clint Morgan via Stack)
-   HBASE-680   Config parameter hbase.io.index.interval  should be
-               hbase.index.interval, according to HBaseMapFile.HbaseWriter
-               (LN via Stack)
-   HBASE-682   Unnecessary iteration in HMemcache.internalGet? got much better
-               reading performance after break it (LN via Stack)
-   HBASE-686   MemcacheScanner didn't return the first row(if it exists),
-               because HScannerInterface's output incorrect (LN via Jim Kellerman)
-   HBASE-691   get* and getScanner are different in how they treat column parameter
-   HBASE-694   HStore.rowAtOrBeforeFromMapFile() fails to locate the row if # of mapfiles >= 2
-               (Rong-En Fan via Bryan)
-   HBASE-652   dropping table fails silently if table isn't disabled
-   HBASE-683   can not get svn revision # at build time if locale is not english
-               (Rong-En Fan via Stack)
-   HBASE-699   Fix TestMigrate up on Hudson
-   HBASE-615   Region balancer oscillates during cluster startup
-   HBASE-613   Timestamp-anchored scanning fails to find all records
-   HBASE-681   NPE in Memcache
-   HBASE-701   Showing bytes in log when should be String
-   HBASE-702   deleteall doesn't
-   HBASE-704   update new shell docs and commands on help menu
-   HBASE-709   Deadlock while rolling WAL-log while finishing flush
-   HBASE-710   If clocks are way off, then we can have daughter split come
-               before rather than after its parent in .META.
-   HBASE-714   Showing bytes in log when should be string (2)
-   HBASE-627   Disable table doesn't work reliably
-   HBASE-716   TestGet2.testGetClosestBefore fails with hadoop-0.17.1
-   HBASE-715   Base HBase 0.2 on Hadoop 0.17.1
-   HBASE-718   hbase shell help info
-   HBASE-717   alter table broke with new shell returns InvalidColumnNameException
-   HBASE-573   HBase does not read hadoop-*.xml for dfs configuration after 
-               moving out hadoop/contrib
-   HBASE-11    Unexpected exits corrupt DFS
-   HBASE-12    When hbase regionserver restarts, it says "impossible state for
-               createLease()"
-   HBASE-575   master dies with stack overflow error if rootdir isn't qualified
-   HBASE-582   HBase 554 forgot to clear results on each iteration caused by a filter
-               (Clint Morgan via Stack)
-   HBASE-532   Odd interaction between HRegion.get, HRegion.deleteAll and compactions
-   HBASE-10    HRegionServer hangs upon exit due to DFSClient Exception
-   HBASE-595   RowFilterInterface.rowProcessed() is called *before* fhe final
-               filtering decision is made (Clint Morgan via Stack)
-   HBASE-586   HRegion runs HStore memcache snapshotting -- fix it so only HStore
-               knows about workings of memcache
-   HBASE-588   Still a 'hole' in scanners, even after HBASE-532
-   HBASE-604   Don't allow CLASSPATH from environment pollute the hbase CLASSPATH
-   HBASE-608   HRegionServer::getThisIP() checks hadoop config var for dns interface name
-               (Jim R. Wilson via Stack)
-   HBASE-609   Master doesn't see regionserver edits because of clock skew
-   HBASE-607   MultiRegionTable.makeMultiRegionTable is not deterministic enough
-               for regression tests
-   HBASE-405   TIF and TOF use log4j directly rather than apache commons-logging
-   HBASE-618   We always compact if 2 files, regardless of the compaction threshold setting
-   HBASE-619   Fix 'logs' link in UI
-   HBASE-478   offlining of table does not run reliably
-   HBASE-453   undeclared throwable exception from HTable.get
-   HBASE-620   testmergetool failing in branch and trunk since hbase-618 went in
-   HBASE-550   EOF trying to read reconstruction log stops region deployment
-   HBASE-551   Master stuck splitting server logs in shutdown loop; on each
-               iteration, edits are aggregated up into the millions
-   HBASE-505   Region assignments should never time out so long as the region
-               server reports that it is processing the open request
-   HBASE-561   HBase package does not include LICENSE.txt nor build.xml
-   HBASE-563   TestRowFilterAfterWrite erroneously sets master address to
-               0.0.0.0:60100 rather than relying on conf
-   HBASE-507   Use Callable pattern to sleep between retries
-   HBASE-564   Don't do a cache flush if there are zero entries in the cache.
-   HBASE-554   filters generate StackOverflowException
-   HBASE-567   Reused BatchUpdate instances accumulate BatchOperations
-   HBASE-577   NPE getting scanner
-   HBASE-19    CountingBloomFilter can overflow its storage
-               (Stu Hood and Bryan Duxbury via Stack)
-   HBASE-28    thrift put/mutateRow methods need to throw IllegalArgument
-               exceptions (Dave Simpson via Bryan Duxbury via Stack)
-   HBASE-2     hlog numbers should wrap around when they reach 999
-               (Bryan Duxbury via Stack)
-   HBASE-421   TestRegionServerExit broken
-   HBASE-426   hbase can't find remote filesystem
-   HBASE-437   Clear Command should use system.out (Edward Yoon via Stack)
-   HBASE-434, HBASE-435 TestTableIndex and TestTableMapReduce failed in Hudson builds
-   HBASE-446   Fully qualified hbase.rootdir doesn't work
-   HBASE-438   XMLOutputter state should be initialized. (Edward Yoon via Stack)
-   HBASE-8     Delete table does not remove the table directory in the FS
-   HBASE-428   Under continuous upload of rows, WrongRegionExceptions are thrown
-               that reach the client even after retries
-   HBASE-460   TestMigrate broken when HBase moved to subproject   
-   HBASE-462   Update migration tool
-   HBASE-473   When a table is deleted, master sends multiple close messages to
-               the region server
-   HBASE-490   Doubly-assigned .META.; master uses one and clients another
-   HBASE-492   hbase TRUNK does not build against hadoop TRUNK
-   HBASE-496   impossible state for createLease writes 400k lines in about 15mins
-   HBASE-472   Passing on edits, we dump all to log
-   HBASE-495   No server address listed in .META.
-   HBASE-433 HBASE-251 Region server should delete restore log after successful
-               restore, Stuck replaying the edits of crashed machine.
-   HBASE-27    hregioninfo cell empty in meta table
-   HBASE-501   Empty region server address in info:server entry and a
-               startcode of -1 in .META.
-   HBASE-516   HStoreFile.finalKey does not update the final key if it is not
-               the top region of a split region
-   HBASE-525   HTable.getRow(Text) does not work (Clint Morgan via Bryan Duxbury)
-   HBASE-524   Problems with getFull
-   HBASE-528   table 'does not exist' when it does
-   HBASE-531   Merge tool won't merge two overlapping regions (port HBASE-483 to
-               trunk)
-   HBASE-537   Wait for hdfs to exit safe mode
-   HBASE-476   RegexpRowFilter behaves incorectly when there are multiple store
-               files (Clint Morgan via Jim Kellerman)
-   HBASE-527   RegexpRowFilter does not work when there are columns from 
-               multiple families (Clint Morgan via Jim Kellerman)
-   HBASE-534   Double-assignment at SPLIT-time
-   HBASE-712   midKey found compacting is the first, not necessarily the optimal
-   HBASE-719   Find out why users have network problems in HBase and not in Hadoop
-               and HConnectionManager (Jean-Daniel Cryans via Stack)
-   HBASE-703   Invalid regions listed by regionserver.jsp (Izaak Rubin via Stack)
-   HBASE-674   Memcache size unreliable
-   HBASE-726   Unit tests won't run because of a typo (Sebastien Rainville via Stack)
-   HBASE-727   Client caught in an infinite loop when trying to connect to cached
-               server locations (Izaak Rubin via Stack)
-   HBASE-732   shell formatting error with the describe command
-               (Izaak Rubin via Stack)
-   HBASE-731   delete, deletefc in HBase shell do not work correctly
-               (Izaak Rubin via Stack)
-   HBASE-734   scan '.META.', {LIMIT => 10} crashes (Izaak Rubin via Stack)
-   HBASE-736   Should have HTable.deleteAll(String row) and HTable.deleteAll(Text row)
-               (Jean-Daniel Cryans via Stack)
-   HBASE-740   ThriftServer getting table names incorrectly (Tim Sell via Stack)
-   HBASE-742   Rename getMetainfo in HTable as getTableDescriptor
-   HBASE-739   HBaseAdmin.createTable() using old HTableDescription doesn't work
-               (Izaak Rubin via Stack)
-   HBASE-744   BloomFilter serialization/deserialization broken
-   HBASE-742   Column length limit is not enforced (Jean-Daniel Cryans via Stack)
-   HBASE-737   Scanner: every cell in a row has the same timestamp
-   HBASE-700   hbase.io.index.interval need be configuratable in column family
-               (Andrew Purtell via Stack)
-   HBASE-62    Allow user add arbitrary key/value pairs to table and column
-               descriptors (Andrew Purtell via Stack)
-   HBASE-34    Set memcache flush size per column (Andrew Purtell via Stack)
-   HBASE-42    Set region split size on table creation (Andrew Purtell via Stack)
-   HBASE-43    Add a read-only attribute to columns (Andrew Purtell via Stack)
-   HBASE-424   Should be able to enable/disable .META. table
-   HBASE-679   Regionserver addresses are still not right in the new tables page
-   HBASE-758   Throwing IOE read-only when should be throwing NSRE
-   HBASE-743   bin/hbase migrate upgrade fails when redo logs exists
-   HBASE-754   The JRuby shell documentation is wrong in "get" and "put"
-               (Jean-Daniel Cryans via Stack)
-   HBASE-756   In HBase shell, the put command doesn't process the timestamp
-               (Jean-Daniel Cryans via Stack)
-   HBASE-757   REST mangles table names (Sishen via Stack)
-   HBASE-706   On OOME, regionserver sticks around and doesn't go down with cluster
-               (Jean-Daniel Cryans via Stack)
-   HBASE-759   TestMetaUtils failing on hudson
-   HBASE-761   IOE: Stream closed exception all over logs
-   HBASE-763   ClassCastException from RowResult.get(String)
-               (Andrew Purtell via Stack)
-   HBASE-764   The name of column request has padding zero using REST interface
-               (Sishen Freecity via Stack)
-   HBASE-750   NPE caused by StoreFileScanner.updateReaders
-   HBASE-769   TestMasterAdmin fails throwing RegionOfflineException when we're
-               expecting IllegalStateException
-   HBASE-766   FileNotFoundException trying to load HStoreFile 'data'
-   HBASE-770   Update HBaseRPC to match hadoop 0.17 RPC
-   HBASE-780   Can't scan '.META.' from new shell
-   HBASE-424   Should be able to enable/disable .META. table
-   HBASE-771   Names legal in 0.1 are not in 0.2; breaks migration
-   HBASE-788   Div by zero in Master.jsp (Clint Morgan via Jim Kellerman)
-   HBASE-791   RowCount doesn't work (Jean-Daniel Cryans via Stack)
-   HBASE-751   dfs exception and regionserver stuck during heavy write load
-   HBASE-793   HTable.getStartKeys() ignores table names when matching columns
-               (Andrew Purtell and Dru Jensen via Stack)
-   HBASE-790   During import, single region blocks requests for >10 minutes,
-               thread dumps, throws out pending requests, and continues
-               (Jonathan Gray via Stack)
-   
-  IMPROVEMENTS
-   HBASE-559   MR example job to count table rows
-   HBASE-596   DemoClient.py (Ivan Begtin via Stack)
-   HBASE-581   Allow adding filters to TableInputFormat (At same time, ensure TIF
-               is subclassable) (David Alves via Stack)
-   HBASE-603   When an exception bubbles out of getRegionServerWithRetries, wrap 
-               the exception with a RetriesExhaustedException
-   HBASE-600   Filters have excessive DEBUG logging
-   HBASE-611   regionserver should do basic health check before reporting
-               alls-well to the master
-   HBASE-614   Retiring regions is not used; exploit or remove
-   HBASE-538   Improve exceptions that come out on client-side
-   HBASE-569   DemoClient.php (Jim R. Wilson via Stack)
-   HBASE-522   Where new Text(string) might be used in client side method calls,
-               add an overload that takes String (Done as part of HBASE-82)
-   HBASE-570   Remove HQL unit test (Done as part of HBASE-82 commit).
-   HBASE-626   Use Visitor pattern in MetaRegion to reduce code clones in HTable
-               and HConnectionManager (Jean-Daniel Cryans via Stack)
-   HBASE-621   Make MAX_VERSIONS work like TTL: In scans and gets, check
-               MAX_VERSIONs setting and return that many only rather than wait on
-               compaction (Jean-Daniel Cryans via Stack)
-   HBASE-504   Allow HMsg's carry a payload: e.g. exception that happened over
-               on the remote side.
-   HBASE-583   RangeRowFilter/ColumnValueFilter to allow choice of rows based on
-               a (lexicographic) comparison to column's values
-               (Clint Morgan via Stack)
-   HBASE-579   Add hadoop 0.17.x
-   HBASE-660   [Migration] addColumn/deleteColumn functionality in MetaUtils
-   HBASE-632   HTable.getMetadata is very inefficient
-   HBASE-671   New UI page displaying all regions in a table should be sorted
-   HBASE-672   Sort regions in the regionserver UI
-   HBASE-677   Make HTable, HRegion, HRegionServer, HStore, and HColumnDescriptor
-               subclassable (Clint Morgan via Stack)
-   HBASE-682   Regularize toString
-   HBASE-672   Sort regions in the regionserver UI
-   HBASE-469   Streamline HStore startup and compactions
-   HBASE-544   Purge startUpdate from internal code and test cases
-   HBASE-557   HTable.getRow() should receive RowResult objects
-   HBASE-452   "region offline" should throw IOException, not IllegalStateException
-   HBASE-541   Update hadoop jars.
-   HBASE-523   package-level javadoc should have example client
-   HBASE-415   Rewrite leases to use DelayedBlockingQueue instead of polling
-   HBASE-35    Make BatchUpdate public in the API
-   HBASE-409   Add build path to svn:ignore list (Edward Yoon via Stack)
-   HBASE-408   Add .classpath and .project to svn:ignore list
-               (Edward Yoon via Stack)
-   HBASE-410   Speed up the test suite (make test timeout 5 instead of 15 mins).
-   HBASE-281   Shell should allow deletions in .META. and -ROOT- tables
-               (Edward Yoon & Bryan Duxbury via Stack)
-   HBASE-56    Unnecessary HQLClient Object creation in a shell loop
-               (Edward Yoon via Stack)
-   HBASE-3     rest server: configure number of threads for jetty
-               (Bryan Duxbury via Stack)
-   HBASE-416   Add apache-style logging to REST server and add setting log
-               level, etc.
-   HBASE-406   Remove HTable and HConnection close methods
-               (Bryan Duxbury via Stack)
-   HBASE-418   Move HMaster and related classes into master package
-               (Bryan Duxbury via Stack)
-   HBASE-410   Speed up the test suite - Apparently test timeout was too
-               aggressive for Hudson. TestLogRolling timed out even though it
-               was operating properly. Change test timeout to 10 minutes.
-   HBASE-436   website: http://hadoop.apache.org/hbase
-   HBASE-417   Factor TableOperation and subclasses into separate files from
-               HMaster (Bryan Duxbury via Stack)
-   HBASE-440   Add optional log roll interval so that log files are garbage
-               collected
-   HBASE-407   Keep HRegionLocation information in LRU structure 
-   HBASE-444   hbase is very slow at determining table is not present
-   HBASE-438   XMLOutputter state should be initialized.
-   HBASE-414   Move client classes into client package
-   HBASE-79    When HBase needs to be migrated, it should display a message on
-               stdout, not just in the logs
-   HBASE-461   Simplify leases.
-   HBASE-419   Move RegionServer and related classes into regionserver package
-   HBASE-457   Factor Master into Master, RegionManager, and ServerManager
-   HBASE-464   HBASE-419 introduced javadoc errors
-   HBASE-468   Move HStoreKey back to o.a.h.h
-   HBASE-442   Move internal classes out of HRegionServer
-   HBASE-466   Move HMasterInterface, HRegionInterface, and 
-               HMasterRegionInterface into o.a.h.h.ipc
-   HBASE-479   Speed up TestLogRolling
-   HBASE-480   Tool to manually merge two regions
-   HBASE-477   Add support for an HBASE_CLASSPATH
-   HBASE-443   Move internal classes out of HStore
-   HBASE-515   At least double default timeouts between regionserver and master
-   HBASE-529   RegionServer needs to recover if datanode goes down
-   HBASE-456   Clearly state which ports need to be opened in order to run HBase
-   HBASE-536   Remove MiniDFS startup from MiniHBaseCluster
-   HBASE-521   Improve client scanner interface
-   HBASE-562   Move Exceptions to subpackages (Jean-Daniel Cryans via Stack)
-   HBASE-631   HTable.getRow() for only a column family
-               (Jean-Daniel Cryans via Stack)
-   HBASE-731   Add a meta refresh tag to the Web ui for master and region server
-               (Jean-Daniel Cryans via Stack)
-   HBASE-735   hbase shell doesn't trap CTRL-C signal (Jean-Daniel Cryans via Stack)
-   HBASE-730   On startup, rinse STARTCODE and SERVER from .META.
-               (Jean-Daniel Cryans via Stack)
-   HBASE-738   overview.html in need of updating (Izaak Rubin via Stack)
-   HBASE-745   scaling of one regionserver, improving memory and cpu usage (partial)
-               (LN via Stack)
-   HBASE-746   Batching row mutations via thrift (Tim Sell via Stack)
-   HBASE-772   Up default lease period from 60 to 120 seconds
-   HBASE-779   Test changing hbase.hregion.memcache.block.multiplier to 2
-   HBASE-783   For single row, single family retrieval, getRow() works half
-               as fast as getScanner().next() (Jean-Daniel Cryans via Stack)
-   HBASE-789   add clover coverage report targets (Rong-en Fan via Stack)
-
-  NEW FEATURES
-   HBASE-47    Option to set TTL for columns in hbase
-               (Andrew Purtell via Bryan Duxbury and Stack)
-   HBASE-23    UI listing regions should be sorted by address and show additional
-               region state (Jean-Daniel Cryans via Stack)
-   HBASE-639   Add HBaseAdmin.getTableDescriptor function
-   HBASE-533   Region Historian
-   HBASE-487   Replace hql w/ a hbase-friendly jirb or jython shell
-   HBASE-548   Tool to online single region
-   HBASE-71    Master should rebalance region assignments periodically
-   HBASE-512   Add configuration for global aggregate memcache size
-   HBASE-40    Add a method of getting multiple (but not all) cells for a row
-               at once
-   HBASE-506   When an exception has to escape ServerCallable due to exhausted
-               retries, show all the exceptions that lead to this situation
-   HBASE-747   Add a simple way to do batch updates of many rows (Jean-Daniel
-               Cryans via JimK)
-   HBASE-733   Enhance Cell so that it can contain multiple values at multiple
-               timestamps
-   HBASE-511   Do exponential backoff in clients on NSRE, WRE, ISE, etc.
-               (Andrew Purtell via Jim Kellerman)
-   
-  OPTIMIZATIONS
-   HBASE-430   Performance: Scanners and getRow return maps with duplicate data
-
-Release 0.1.3 - 07/25/2008
-
-  BUG FIXES
-   HBASE-644   DroppedSnapshotException but RegionServer doesn't restart
-   HBASE-645   EOFException opening region (HBASE-550 redux)
-   HBASE-641   Improve master split logging
-   HBASE-642   Splitting log in a hostile environment -- bad hdfs -- we drop
-               write-ahead-log edits
-   HBASE-646   EOFException opening HStoreFile info file (spin on HBASE-645 and 550)
-   HBASE-648   If mapfile index is empty, run repair
-   HBASE-659   HLog#cacheFlushLock not cleared; hangs a region
-   HBASE-663   Incorrect sequence number for cache flush
-   HBASE-652   Dropping table fails silently if table isn't disabled 
-   HBASE-674   Memcache size unreliable
-   HBASE-665   server side scanner doesn't honor stop row
-   HBASE-681   NPE in Memcache (Clint Morgan via Jim Kellerman)
-   HBASE-680   config parameter hbase.io.index.interval should be
-               hbase.index.interval, accroding to HBaseMapFile.HbaseWriter
-               (LN via Stack)
-   HBASE-684   unnecessary iteration in HMemcache.internalGet? got much better
-               reading performance after break it (LN via Stack)
-   HBASE-686   MemcacheScanner didn't return the first row(if it exists),
-               because HScannerInterface's output incorrect (LN via Jim Kellerman)
-   HBASE-613   Timestamp-anchored scanning fails to find all records
-   HBASE-709   Deadlock while rolling WAL-log while finishing flush
-   HBASE-707   High-load import of data into single table/family never triggers split
-   HBASE-710   If clocks are way off, then we can have daughter split come
-               before rather than after its parent in .META.
-
-Release 0.1.2 - 05/13/2008
-
-  BUG FIXES
-   HBASE-577   NPE getting scanner
-   HBASE-574   HBase does not load hadoop native libs (Rong-En Fan via Stack).
-   HBASE-11    Unexpected exits corrupt DFS - best we can do until we have at
-               least a subset of HADOOP-1700
-   HBASE-573   HBase does not read hadoop-*.xml for dfs configuration after
-               moving out hadoop/contrib
-   HBASE-12    when hbase regionserver restarts, it says "impossible state for
-               createLease()"
-   HBASE-575   master dies with stack overflow error if rootdir isn't qualified
-   HBASE-500   Regionserver stuck on exit
-   HBASE-582   HBase 554 forgot to clear results on each iteration caused by a filter
-               (Clint Morgan via Stack)
-   HBASE-532   Odd interaction between HRegion.get, HRegion.deleteAll and compactions
-   HBASE-590   HBase migration tool does not get correct FileSystem or root
-               directory if configuration is not correct
-   HBASE-595   RowFilterInterface.rowProcessed() is called *before* fhe final
-               filtering decision is made (Clint Morgan via Stack)
-   HBASE-586   HRegion runs HStore memcache snapshotting -- fix it so only HStore
-               knows about workings of memcache
-   HBASE-572   Backport HBASE-512 to 0.1 branch
-   HBASE-588   Still a 'hole' in scanners, even after HBASE-532
-   HBASE-604   Don't allow CLASSPATH from environment pollute the hbase CLASSPATH
-   HBASE-608   HRegionServer::getThisIP() checks hadoop config var for dns interface name
-               (Jim R. Wilson via Stack)
-   HBASE-609   Master doesn't see regionserver edits because of clock skew
-   HBASE-607   MultiRegionTable.makeMultiRegionTable is not deterministic enough
-               for regression tests
-   HBASE-478   offlining of table does not run reliably
-   HBASE-618   We always compact if 2 files, regardless of the compaction threshold setting
-   HBASE-619   Fix 'logs' link in UI
-   HBASE-620   testmergetool failing in branch and trunk since hbase-618 went in
-   
-  IMPROVEMENTS
-   HBASE-559   MR example job to count table rows
-   HBASE-578   Upgrade branch to 0.16.3 hadoop.
-   HBASE-596   DemoClient.py (Ivan Begtin via Stack)
-
-
-Release 0.1.1 - 04/11/2008
-
-  BUG FIXES
-   HBASE-550   EOF trying to read reconstruction log stops region deployment
-   HBASE-551   Master stuck splitting server logs in shutdown loop; on each
-               iteration, edits are aggregated up into the millions
-   HBASE-505   Region assignments should never time out so long as the region
-               server reports that it is processing the open request
-   HBASE-552   Fix bloom filter bugs (Andrzej Bialecki via Jim Kellerman)
-   HBASE-507   Add sleep between retries
-   HBASE-555   Only one Worker in HRS; on startup, if assigned tens of regions,
-               havoc of reassignments because open processing is done in series
-   HBASE-547   UI shows hadoop version, not hbase version
-   HBASE-561   HBase package does not include LICENSE.txt nor build.xml
-   HBASE-556   Add 0.16.2 to hbase branch -- if it works
-   HBASE-563   TestRowFilterAfterWrite erroneously sets master address to
-               0.0.0.0:60100 rather than relying on conf
-   HBASE-554   filters generate StackOverflowException (Clint Morgan via
-               Jim Kellerman)
-   HBASE-567   Reused BatchUpdate instances accumulate BatchOperations
-
-  NEW FEATURES
-   HBASE-548   Tool to online single region
-
-Release 0.1.0
-
-  INCOMPATIBLE CHANGES
-   HADOOP-2750 Deprecated methods startBatchUpdate, commitBatch, abortBatch, 
-               and renewLease have been removed from HTable (Bryan Duxbury via
-               Jim Kellerman)
-   HADOOP-2786 Move hbase out of hadoop core
-   HBASE-403   Fix build after move of hbase in svn
-   HBASE-494   Up IPC version on 0.1 branch so we cannot mistakenly connect
-               with a hbase from 0.16.0
-
-  NEW FEATURES
-   HBASE-506   When an exception has to escape ServerCallable due to exhausted retries, 
-               show all the exceptions that lead to this situation
-
-  OPTIMIZATIONS
-
-  BUG FIXES
-   HADOOP-2731 Under load, regions become extremely large and eventually cause
-               region servers to become unresponsive
-   HADOOP-2693 NPE in getClosestRowBefore (Bryan Duxbury & Stack)
-   HADOOP-2599 Some minor improvements to changes in HADOOP-2443
-               (Bryan Duxbury & Stack)
-   HADOOP-2773 Master marks region offline when it is recovering from a region
-               server death
-   HBASE-425   Fix doc. so it accomodates new hbase untethered context
-   HBase-421   TestRegionServerExit broken
-   HBASE-426   hbase can't find remote filesystem
-   HBASE-446   Fully qualified hbase.rootdir doesn't work
-   HBASE-428   Under continuous upload of rows, WrongRegionExceptions are
-               thrown that reach the client even after retries
-   HBASE-490   Doubly-assigned .META.; master uses one and clients another
-   HBASE-496   impossible state for createLease writes 400k lines in about 15mins
-   HBASE-472   Passing on edits, we dump all to log
-   HBASE-79    When HBase needs to be migrated, it should display a message on
-               stdout, not just in the logs
-   HBASE-495   No server address listed in .META.
-   HBASE-433 HBASE-251 Region server should delete restore log after successful
-               restore, Stuck replaying the edits of crashed machine.
-   HBASE-27    hregioninfo cell empty in meta table
-   HBASE-501   Empty region server address in info:server entry and a
-               startcode of -1 in .META.
-   HBASE-516   HStoreFile.finalKey does not update the final key if it is not
-               the top region of a split region
-   HBASE-524   Problems with getFull
-   HBASE-514   table 'does not exist' when it does
-   HBASE-537   Wait for hdfs to exit safe mode
-   HBASE-534   Double-assignment at SPLIT-time
-   
-  IMPROVEMENTS
-   HADOOP-2555 Refactor the HTable#get and HTable#getRow methods to avoid
-               repetition of retry-on-failure logic (thanks to Peter Dolan and
-               Bryan Duxbury)
-   HBASE-281   Shell should allow deletions in .META. and -ROOT- tables
-   HBASE-480   Tool to manually merge two regions
-   HBASE-477   Add support for an HBASE_CLASSPATH
-   HBASE-515   At least double default timeouts between regionserver and master
-   HBASE-482   package-level javadoc should have example client or at least 
-               point at the FAQ
-   HBASE-497   RegionServer needs to recover if datanode goes down
-   HBASE-456   Clearly state which ports need to be opened in order to run HBase
-   HBASE-483   Merge tool won't merge two overlapping regions
-   HBASE-476   RegexpRowFilter behaves incorectly when there are multiple store
-               files (Clint Morgan via Jim Kellerman)
-   HBASE-527   RegexpRowFilter does not work when there are columns from 
-               multiple families (Clint Morgan via Jim Kellerman)
-              
-Release 0.16.0
-
-  2008/02/04   HBase is now a subproject of Hadoop. The first HBase release as
-               a subproject will be release 0.1.0 which will be equivalent to
-               the version of HBase included in Hadoop 0.16.0. In order to
-               accomplish this, the HBase portion of HBASE-288 (formerly 
-               HADOOP-1398) has been backed out. Once 0.1.0 is frozen (depending
-               mostly on changes to infrastructure due to becoming a sub project
-               instead of a contrib project), this patch will re-appear on HBase
-               trunk.
-
-  INCOMPATIBLE CHANGES
-   HADOOP-2056 A table with row keys containing colon fails to split regions
-   HADOOP-2079 Fix generated HLog, HRegion names
-   HADOOP-2495 Minor performance improvements: Slim-down BatchOperation, etc. 
-   HADOOP-2506 Remove the algebra package
-   HADOOP-2519 Performance improvements: Customized RPC serialization
-   HADOOP-2478 Restructure how HBase lays out files in the file system (phase 1)
-               (test input data)
-   HADOOP-2478 Restructure how HBase lays out files in the file system (phase 2)
-               Includes migration tool org.apache.hadoop.hbase.util.Migrate
-   HADOOP-2558 org.onelab.filter.BloomFilter class uses 8X the memory it should
-               be using
-
-  NEW FEATURES
-    HADOOP-2061 Add new Base64 dialects
-    HADOOP-2084 Add a LocalHBaseCluster
-    HADOOP-2068 RESTful interface (Bryan Duxbury via Stack)
-    HADOOP-2316 Run REST servlet outside of master
-                (Bryan Duxbury & Stack)
-    HADOOP-1550 No means of deleting a'row' (Bryan Duxbuery via Stack)
-    HADOOP-2384 Delete all members of a column family on a specific row
-                (Bryan Duxbury via Stack)
-    HADOOP-2395 Implement "ALTER TABLE ... CHANGE column" operation
-                (Bryan Duxbury via Stack)
-    HADOOP-2240 Truncate for hbase (Edward Yoon via Stack)
-    HADOOP-2389 Provide multiple language bindings for HBase (Thrift)
-                (David Simpson via Stack)
-
-  OPTIMIZATIONS
-   HADOOP-2479 Save on number of Text object creations
-   HADOOP-2485 Make mapfile index interval configurable (Set default to 32
-               instead of 128)
-   HADOOP-2553 Don't make Long objects calculating hbase type hash codes
-   HADOOP-2377 Holding open MapFile.Readers is expensive, so use less of them
-   HADOOP-2407 Keeping MapFile.Reader open is expensive: Part 2
-   HADOOP-2533 Performance: Scanning, just creating MapWritable in next
-               consumes >20% CPU
-   HADOOP-2443 Keep lazy cache of regions in client rather than an
-               'authoritative' list (Bryan Duxbury via Stack)
-   HADOOP-2600 Performance: HStore.getRowKeyAtOrBefore should use
-               MapFile.Reader#getClosest (before)
-               (Bryan Duxbury via Stack)
-
-  BUG FIXES
-   HADOOP-2059 In tests, exceptions in min dfs shutdown should not fail test
-               (e.g. nightly #272)
-   HADOOP-2064 TestSplit assertion and NPE failures (Patch build #952 and #953)
-   HADOOP-2124 Use of `hostname` does not work on Cygwin in some cases
-   HADOOP-2083 TestTableIndex failed in #970 and #956
-   HADOOP-2109 Fixed race condition in processing server lease timeout.
-   HADOOP-2137 hql.jsp : The character 0x19 is not valid
-   HADOOP-2109 Fix another race condition in processing dead servers,
-               Fix error online meta regions: was using region name and not
-               startKey as key for map.put. Change TestRegionServerExit to
-               always kill the region server for the META region. This makes
-               the test more deterministic and getting META reassigned was
-               problematic.
-   HADOOP-2155 Method expecting HBaseConfiguration throws NPE when given Configuration
-   HADOOP-2156 BufferUnderflowException for un-named HTableDescriptors
-   HADOOP-2161 getRow() is orders of magnitudes slower than get(), even on rows
-               with one column (Clint Morgan and Stack)
-   HADOOP-2040 Hudson hangs AFTER test has finished
-   HADOOP-2274 Excess synchronization introduced by HADOOP-2139 negatively
-               impacts performance
-   HADOOP-2196 Fix how hbase sits in hadoop 'package' product
-   HADOOP-2276 Address regression caused by HADOOP-2274, fix HADOOP-2173 (When
-               the master times out a region servers lease, the region server
-               may not restart)
-   HADOOP-2253 getRow can return HBASE::DELETEVAL cells
-               (Bryan Duxbury via Stack)
-   HADOOP-2295 Fix assigning a region to multiple servers
-   HADOOP-2234 TableInputFormat erroneously aggregates map values
-   HADOOP-2308 null regioninfo breaks meta scanner
-   HADOOP-2304 Abbreviated symbol parsing error of dir path in jar command
-               (Edward Yoon via Stack)
-   HADOOP-2320 Committed TestGet2 is managled (breaks build).
-   HADOOP-2322 getRow(row, TS) client interface not properly connected
-   HADOOP-2309 ConcurrentModificationException doing get of all region start keys
-   HADOOP-2321 TestScanner2 does not release resources which sometimes cause the
-               test to time out
-   HADOOP-2315 REST servlet doesn't treat / characters in row key correctly
-               (Bryan Duxbury via Stack)
-   HADOOP-2332 Meta table data selection in Hbase Shell
-               (Edward Yoon via Stack)
-   HADOOP-2347 REST servlet not thread safe but run in a threaded manner
-               (Bryan Duxbury via Stack)
-   HADOOP-2365 Result of HashFunction.hash() contains all identical values
-   HADOOP-2362 Leaking hdfs file handle on region split
-   HADOOP-2338 Fix NullPointerException in master server.
-   HADOOP-2380 REST servlet throws NPE when any value node has an empty string
-               (Bryan Duxbury via Stack)
-   HADOOP-2350 Scanner api returns null row names, or skips row names if
-               different column families do not have entries for some rows
-   HADOOP-2283 AlreadyBeingCreatedException (Was: Stuck replay of failed
-               regionserver edits)
-   HADOOP-2392 TestRegionServerExit has new failure mode since HADOOP-2338
-   HADOOP-2324 Fix assertion failures in TestTableMapReduce
-   HADOOP-2396 NPE in HMaster.cancelLease
-   HADOOP-2397 The only time that a meta scanner should try to recover a log is
-               when the master is starting
-   HADOOP-2417 Fix critical shutdown problem introduced by HADOOP-2338
-   HADOOP-2418 Fix assertion failures in TestTableMapReduce, TestTableIndex,
-               and TestTableJoinMapReduce
-   HADOOP-2414 Fix ArrayIndexOutOfBoundsException in bloom filters.
-   HADOOP-2430 Master will not shut down if there are no active region servers
-   HADOOP-2199 Add tools for going from hregion filename to region name in logs
-   HADOOP-2441 Fix build failures in TestHBaseCluster
-   HADOOP-2451 End key is incorrectly assigned in many region splits
-   HADOOP-2455 Error in Help-string of CREATE command (Edward Yoon via Stack)
-   HADOOP-2465 When split parent regions are cleaned up, not all the columns are
-               deleted
-   HADOOP-2468 TestRegionServerExit failed in Hadoop-Nightly #338
-   HADOOP-2467 scanner truncates resultset when > 1 column families
-   HADOOP-2503 REST Insert / Select encoding issue (Bryan Duxbury via Stack)
-   HADOOP-2505 formatter classes missing apache license
-   HADOOP-2504 REST servlet method for deleting a scanner was not properly
-               mapped (Bryan Duxbury via Stack)
-   HADOOP-2507 REST servlet does not properly base64 row keys and column names
-               (Bryan Duxbury via Stack)
-   HADOOP-2530 Missing type in new hbase custom RPC serializer
-   HADOOP-2490 Failure in nightly #346 (Added debugging of hudson failures).
-   HADOOP-2558 fixes for build up on hudson (part 1, part 2, part 3, part 4)
-   HADOOP-2500 Unreadable region kills region servers
-   HADOOP-2579 Initializing a new HTable object against a nonexistent table
-               throws a NoServerForRegionException instead of a
-               TableNotFoundException when a different table has been created
-               previously (Bryan Duxbury via Stack)
-   HADOOP-2587 Splits blocked by compactions cause region to be offline for
-               duration of compaction. 
-   HADOOP-2592 Scanning, a region can let out a row that its not supposed
-               to have
-   HADOOP-2493 hbase will split on row when the start and end row is the
-               same cause data loss (Bryan Duxbury via Stack)
-   HADOOP-2629 Shell digests garbage without complaint
-   HADOOP-2619 Compaction errors after a region splits
-   HADOOP-2621 Memcache flush flushing every 60 secs with out considering
-               the max memcache size
-   HADOOP-2584 Web UI displays an IOException instead of the Tables
-   HADOOP-2650 Remove Writables.clone and use WritableUtils.clone from
-               hadoop instead
-   HADOOP-2668 Documentation and improved logging so fact that hbase now
-               requires migration comes as less of a surprise
-   HADOOP-2686 Removed tables stick around in .META.
-   HADOOP-2688 IllegalArgumentException processing a shutdown stops
-               server going down and results in millions of lines of output
-   HADOOP-2706 HBase Shell crash
-   HADOOP-2712 under load, regions won't split
-   HADOOP-2675 Options not passed to rest/thrift
-   HADOOP-2722 Prevent unintentional thread exit in region server and master
-   HADOOP-2718 Copy Constructor HBaseConfiguration(Configuration) will override
-               hbase configurations if argumant is not an instance of
-               HBaseConfiguration.
-   HADOOP-2753 Back out 2718; programmatic config works but hbase*xml conf
-               is overridden
-   HADOOP-2718 Copy Constructor HBaseConfiguration(Configuration) will override
-               hbase configurations if argumant is not an instance of
-               HBaseConfiguration (Put it back again).
-   HADOOP-2631 2443 breaks HTable.getStartKeys when there is more than one
-               table or table you are enumerating isn't the first table
-   Delete empty file: src/contrib/hbase/src/java/org/apache/hadoop/hbase/mapred/
-               TableOutputCollector.java per Nigel Daley
-   
-  IMPROVEMENTS
-   HADOOP-2401 Add convenience put method that takes writable
-               (Johan Oskarsson via Stack)
-   HADOOP-2074 Simple switch to enable DEBUG level-logging in hbase
-   HADOOP-2088 Make hbase runnable in $HADOOP_HOME/build(/contrib/hbase)
-   HADOOP-2126 Use Bob Jenkins' hash for bloom filters
-   HADOOP-2157 Make Scanners implement Iterable
-   HADOOP-2176 Htable.deleteAll documentation is ambiguous
-   HADOOP-2139 (phase 1) Increase parallelism in region servers.
-   HADOOP-2267 [Hbase Shell] Change the prompt's title from 'hbase' to 'hql'.
-               (Edward Yoon via Stack)
-   HADOOP-2139 (phase 2) Make region server more event driven
-   HADOOP-2289 Useless efforts of looking for the non-existant table in select
-               command.
-               (Edward Yoon via Stack)
-   HADOOP-2257 Show a total of all requests and regions on the web ui
-               (Paul Saab via Stack)
-   HADOOP-2261 HTable.abort no longer throws exception if there is no active update.
-   HADOOP-2287 Make hbase unit tests take less time to complete.
-   HADOOP-2262 Retry n times instead of n**2 times.
-   HADOOP-1608 Relational Algrebra Operators
-               (Edward Yoon via Stack)
-   HADOOP-2198 HTable should have method to return table metadata
-   HADOOP-2296 hbase shell: phantom columns show up from select command
-   HADOOP-2297 System.exit() Handling in hbase shell jar command
-               (Edward Yoon via Stack)
-   HADOOP-2224 Add HTable.getRow(ROW, ts)
-               (Bryan Duxbury via Stack)
-   HADOOP-2339 Delete command with no WHERE clause
-               (Edward Yoon via Stack)
-   HADOOP-2299 Support inclusive scans (Bryan Duxbury via Stack)
-   HADOOP-2333 Client side retries happen at the wrong level
-   HADOOP-2357 Compaction cleanup; less deleting + prevent possible file leaks
-   HADOOP-2392 TestRegionServerExit has new failure mode since HADOOP-2338
-   HADOOP-2370 Allow column families with an unlimited number of versions
-               (Edward Yoon via Stack)
-   HADOOP-2047 Add an '--master=X' and '--html' command-line parameters to shell
-               (Edward Yoon via Stack)
-   HADOOP-2351 If select command returns no result, it doesn't need to show the
-               header information (Edward Yoon via Stack)
-   HADOOP-2285 Add being able to shutdown regionservers (Dennis Kubes via Stack)
-   HADOOP-2458 HStoreFile.writeSplitInfo should just call 
-               HStoreFile.Reference.write
-   HADOOP-2471 Add reading/writing MapFile to PerformanceEvaluation suite
-   HADOOP-2522 Separate MapFile benchmark from PerformanceEvaluation
-               (Tom White via Stack)
-   HADOOP-2502 Insert/Select timestamp, Timestamp data type in HQL
-               (Edward Yoon via Stack)
-   HADOOP-2450 Show version (and svn revision) in hbase web ui
-   HADOOP-2472 Range selection using filter (Edward Yoon via Stack)
-   HADOOP-2548 Make TableMap and TableReduce generic
-               (Frederik Hedberg via Stack)
-   HADOOP-2557 Shell count function (Edward Yoon via Stack)
-   HADOOP-2589 Change an classes/package name from Shell to hql
-               (Edward Yoon via Stack)
-   HADOOP-2545 hbase rest server should be started with hbase-daemon.sh
-   HADOOP-2525 Same 2 lines repeated 11 million times in HMaster log upon
-               HMaster shutdown
-   HADOOP-2616 hbase not spliting when the total size of region reaches max
-               region size * 1.5
-   HADOOP-2643 Make migration tool smarter.
-   
-Release 0.15.1
-Branch 0.15
-
-  INCOMPATIBLE CHANGES
-    HADOOP-1931 Hbase scripts take --ARG=ARG_VALUE when should be like hadoop
-                and do ---ARG ARG_VALUE
-
-  NEW FEATURES
-    HADOOP-1768 FS command using Hadoop FsShell operations
-                (Edward Yoon via Stack)
-    HADOOP-1784 Delete: Fix scanners and gets so they work properly in presence
-                of deletes. Added a deleteAll to remove all cells equal to or
-                older than passed timestamp.  Fixed compaction so deleted cells
-                do not make it out into compacted output.  Ensure also that
-                versions > column max are dropped compacting.
-    HADOOP-1720 Addition of HQL (Hbase Query Language) support in Hbase Shell.
-                The old shell syntax has been replaced by HQL, a small SQL-like
-                set of operators, for creating, altering, dropping, inserting,
-                deleting, and selecting, etc., data in hbase.
-                (Inchul Song and Edward Yoon via Stack)
-    HADOOP-1913 Build a Lucene index on an HBase table
-                (Ning Li via Stack)
-    HADOOP-1957 Web UI with report on cluster state and basic browsing of tables
-
-  OPTIMIZATIONS
-
-  BUG FIXES
-    HADOOP-1527 Region server won't start because logdir exists
-    HADOOP-1723 If master asks region server to shut down, by-pass return of
-                shutdown message
-    HADOOP-1729 Recent renaming or META tables breaks hbase shell
-    HADOOP-1730 unexpected null value causes META scanner to exit (silently)
-    HADOOP-1747 On a cluster, on restart, regions multiply assigned
-    HADOOP-1776 Fix for sporadic compaction failures closing and moving
-                compaction result
-    HADOOP-1780 Regions are still being doubly assigned
-    HADOOP-1797 Fix NPEs in MetaScanner constructor
-    HADOOP-1799 Incorrect classpath in binary version of Hadoop
-    HADOOP-1805 Region server hang on exit
-    HADOOP-1785 TableInputFormat.TableRecordReader.next has a bug
-                (Ning Li via Stack)
-    HADOOP-1800 output should default utf8 encoding
-    HADOOP-1801 When hdfs is yanked out from under hbase, hbase should go down gracefully
-    HADOOP-1813 OOME makes zombie of region server
-    HADOOP-1814	TestCleanRegionServerExit fails too often on Hudson
-    HADOOP-1820 Regionserver creates hlogs without bound
-                (reverted 2007/09/25) (Fixed 2007/09/30)
-    HADOOP-1821 Replace all String.getBytes() with String.getBytes("UTF-8")
-    HADOOP-1832 listTables() returns duplicate tables
-    HADOOP-1834 Scanners ignore timestamp passed on creation
-    HADOOP-1847 Many HBase tests do not fail well.
-    HADOOP-1847 Many HBase tests do not fail well. (phase 2)
-    HADOOP-1870 Once file system failure has been detected, don't check it again
-                and get on with shutting down the hbase cluster.
-    HADOOP-1888 NullPointerException in HMemcacheScanner (reprise)
-    HADOOP-1903 Possible data loss if Exception happens between snapshot and
-                flush to disk.
-    HADOOP-1920 Wrapper scripts broken when hadoop in one location and hbase in
-                another
-    HADOOP-1923, HADOOP-1924 a) tests fail sporadically because set up and tear
-                 down is inconsistent b) TestDFSAbort failed in nightly #242
-    HADOOP-1929 Add hbase-default.xml to hbase jar
-    HADOOP-1941 StopRowFilter throws NPE when passed null row
-    HADOOP-1966 Make HBase unit tests more reliable in the Hudson environment.
-    HADOOP-1975 HBase tests failing with java.lang.NumberFormatException
-    HADOOP-1990 Regression test instability affects nightly and patch builds
-    HADOOP-1996 TestHStoreFile fails on windows if run multiple times
-    HADOOP-1937 When the master times out a region server's lease, it is too 
-                aggressive in reclaiming the server's log.
-    HADOOP-2004 webapp hql formatting bugs 
-    HADOOP_2011 Make hbase daemon scripts take args in same order as hadoop
-                daemon scripts
-    HADOOP-2017 TestRegionServerAbort failure in patch build #903 and
-                nightly #266
-    HADOOP-2029 TestLogRolling fails too often in patch and nightlies
-    HADOOP-2038 TestCleanRegionExit failed in patch build #927
-
-  IMPROVEMENTS
-    HADOOP-1737 Make HColumnDescriptor data publically members settable
-    HADOOP-1746 Clean up findbugs warnings
-    HADOOP-1757 Bloomfilters: single argument constructor, use enum for bloom
-                filter types
-    HADOOP-1760 Use new MapWritable and SortedMapWritable classes from
-                org.apache.hadoop.io
-    HADOOP-1793 (Phase 1) Remove TestHClient (Phase2) remove HClient.
-    HADOOP-1794 Remove deprecated APIs
-    HADOOP-1802 Startup scripts should wait until hdfs as cleared 'safe mode'
-    HADOOP-1833 bin/stop_hbase.sh returns before it completes
-                (Izaak Rubin via Stack) 
-    HADOOP-1835 Updated Documentation for HBase setup/installation
-                (Izaak Rubin via Stack)
-    HADOOP-1868 Make default configuration more responsive
-    HADOOP-1884 Remove useless debugging log messages from hbase.mapred
-    HADOOP-1856 Add Jar command to hbase shell using Hadoop RunJar util
-                (Edward Yoon via Stack)
-    HADOOP-1928 Have master pass the regionserver the filesystem to use
-    HADOOP-1789 Output formatting
-    HADOOP-1960 If a region server cannot talk to the master before its lease
-                times out, it should shut itself down
-    HADOOP-2035 Add logo to webapps
-
-
-Below are the list of changes before 2007-08-18
-
-  1. HADOOP-1384. HBase omnibus patch. (jimk, Vuk Ercegovac, and Michael Stack)
-  2. HADOOP-1402. Fix javadoc warnings in hbase contrib. (Michael Stack)
-  3. HADOOP-1404. HBase command-line shutdown failing (Michael Stack)
-  4. HADOOP-1397. Replace custom hbase locking with 
-     java.util.concurrent.locks.ReentrantLock (Michael Stack)
-  5. HADOOP-1403. HBase reliability - make master and region server more fault
-     tolerant.
-  6. HADOOP-1418. HBase miscellaneous: unit test for HClient, client to do
-     'Performance Evaluation', etc.
-  7. HADOOP-1420, HADOOP-1423. Findbugs changes, remove reference to removed 
-     class HLocking.
-  8. HADOOP-1424. TestHBaseCluster fails with IllegalMonitorStateException. Fix
-     regression introduced by HADOOP-1397.
-  9. HADOOP-1426. Make hbase scripts executable + add test classes to CLASSPATH.
- 10. HADOOP-1430. HBase shutdown leaves regionservers up.
- 11. HADOOP-1392. Part1: includes create/delete table; enable/disable table;
-     add/remove column.
- 12. HADOOP-1392. Part2: includes table compaction by merging adjacent regions
-     that have shrunk in size.
- 13. HADOOP-1445 Support updates across region splits and compactions
- 14. HADOOP-1460 On shutdown IOException with complaint 'Cannot cancel lease
-     that is not held'
- 15. HADOOP-1421 Failover detection, split log files.
-     For the files modified, also clean up javadoc, class, field and method 
-     visibility (HADOOP-1466)
- 16. HADOOP-1479 Fix NPE in HStore#get if store file only has keys < passed key.
- 17. HADOOP-1476 Distributed version of 'Performance Evaluation' script
- 18. HADOOP-1469 Asychronous table creation
- 19. HADOOP-1415 Integrate BSD licensed bloom filter implementation.
- 20. HADOOP-1465 Add cluster stop/start scripts for hbase
- 21. HADOOP-1415 Provide configurable per-column bloom filters - part 2.
- 22. HADOOP-1498. Replace boxed types with primitives in many places.
- 23. HADOOP-1509.  Made methods/inner classes in HRegionServer and HClient protected
-     instead of private for easier extension. Also made HRegion and HRegionInfo public too.
-     Added an hbase-default.xml property for specifying what HRegionInterface extension to use
-     for proxy server connection. (James Kennedy via Jim Kellerman)
- 24. HADOOP-1534. [hbase] Memcache scanner fails if start key not present
- 25. HADOOP-1537. Catch exceptions in testCleanRegionServerExit so we can see
-     what is failing.
- 26. HADOOP-1543 [hbase] Add HClient.tableExists
- 27. HADOOP-1519 [hbase] map/reduce interface for HBase.  (Vuk Ercegovac and
-     Jim Kellerman)
- 28. HADOOP-1523 Hung region server waiting on write locks 
- 29. HADOOP-1560 NPE in MiniHBaseCluster on Windows
- 30. HADOOP-1531 Add RowFilter to HRegion.HScanner
-     Adds a row filtering interface and two implemenentations: A page scanner,
-     and a regex row/column-data matcher. (James Kennedy via Stack)
- 31. HADOOP-1566 Key-making utility
- 32. HADOOP-1415 Provide configurable per-column bloom filters. 
-     HADOOP-1466 Clean up visibility and javadoc issues in HBase.
- 33. HADOOP-1538 Provide capability for client specified time stamps in HBase
-     HADOOP-1466 Clean up visibility and javadoc issues in HBase.
- 34. HADOOP-1589 Exception handling in HBase is broken over client server connections
- 35. HADOOP-1375 a simple parser for hbase (Edward Yoon via Stack)
- 36. HADOOP-1600 Update license in HBase code
- 37. HADOOP-1589 Exception handling in HBase is broken over client server
- 38. HADOOP-1574 Concurrent creates of a table named 'X' all succeed
- 39. HADOOP-1581 Un-openable tablename bug
- 40. HADOOP-1607 [shell] Clear screen command (Edward Yoon via Stack)
- 41. HADOOP-1614 [hbase] HClient does not protect itself from simultaneous updates
- 42. HADOOP-1468 Add HBase batch update to reduce RPC overhead
- 43. HADOOP-1616 Sporadic TestTable failures
- 44. HADOOP-1615 Replacing thread notification-based queue with 
-     java.util.concurrent.BlockingQueue in HMaster, HRegionServer
- 45. HADOOP-1606 Updated implementation of RowFilterSet, RowFilterInterface
-     (Izaak Rubin via Stack)
- 46. HADOOP-1579 Add new WhileMatchRowFilter and StopRowFilter filters
-    (Izaak Rubin via Stack)
- 47. HADOOP-1637 Fix to HScanner to Support Filters, Add Filter Tests to
-     TestScanner2 (Izaak Rubin via Stack)
- 48. HADOOP-1516 HClient fails to readjust when ROOT or META redeployed on new
-     region server
- 49. HADOOP-1646 RegionServer OOME's under sustained, substantial loading by
-     10 concurrent clients
- 50. HADOOP-1468 Add HBase batch update to reduce RPC overhead (restrict batches
-     to a single row at a time)
- 51. HADOOP-1528 HClient for multiple tables (phase 1) (James Kennedy & JimK)
- 52. HADOOP-1528 HClient for multiple tables (phase 2) all HBase client side code
-     (except TestHClient and HBaseShell) have been converted to use the new client
-     side objects (HTable/HBaseAdmin/HConnection) instead of HClient.
- 53. HADOOP-1528 HClient for multiple tables - expose close table function
- 54. HADOOP-1466 Clean up warnings, visibility and javadoc issues in HBase.
- 55. HADOOP-1662 Make region splits faster
- 56. HADOOP-1678 On region split, master should designate which host should 
-     serve daughter splits. Phase 1: Master balances load for new regions and
-     when a region server fails.
- 57. HADOOP-1678 On region split, master should designate which host should 
-     serve daughter splits. Phase 2: Master assigns children of split region
-     instead of HRegionServer serving both children.
- 58. HADOOP-1710 All updates should be batch updates
- 59. HADOOP-1711 HTable API should use interfaces instead of concrete classes as
-     method parameters and return values
- 60. HADOOP-1644 Compactions should not block updates
- 60. HADOOP-1672 HBase Shell should use new client classes
-     (Edward Yoon via Stack).
- 61. HADOOP-1709 Make HRegionInterface more like that of HTable
-     HADOOP-1725 Client find of table regions should not include offlined, split parents
+Hbase Change Log
+
+Release 0.2.1 - Unreleased
+
+  INCOMPATIBLE CHANGES
+  BUG FIXES
+   HBASE-805   Remove unnecessary getRow overloads in HRS (Jonathan Gray via
+               Jim Kellerman) (Fix whitespace changes in HRegionServer)
+   HBASE-811   HTD is not fully copyable (Andrew Purtell via Jim Kellerman)
+   HBASE-729   Client region/metadata cache should have a public method for
+               invalidating entries (Andrew Purtell via Stack)
+   HBASE-819   Remove DOS-style ^M carriage returns from all code where found
+               (Jonathan Gray via Jim Kellerman)
+
+  IMPROVEMENTS
+   HBASE-801  When a table haven't disable, shell could response in a "user
+              friendly" way.
+   HBASE-816  TableMap should survive USE (Andrew Purtell via Stack)
+
+  NEW FEATURES
+  OPTIMIZATIONS
+
+Release 0.2.0 - August 8, 2008.
+
+  INCOMPATIBLE CHANGES
+   HBASE-584   Names in the filter interface are confusing (Clint Morgan via
+               Jim Kellerman) (API change for filters)
+   HBASE-601   Just remove deprecated methods in HTable; 0.2 is not backward
+               compatible anyways
+   HBASE-82    Row keys should be array of bytes
+   HBASE-76    Purge servers of Text (Done as part of HBASE-82 commit).
+   HBASE-487   Replace hql w/ a hbase-friendly jirb or jython shell
+               Part 1: purge of hql and added raw jirb in its place.
+   HBASE-521   Improve client scanner interface
+   HBASE-288   Add in-memory caching of data. Required update of hadoop to 
+               0.17.0-dev.2008-02-07_12-01-58. (Tom White via Stack) 
+   HBASE-696   Make bloomfilter true/false and self-sizing
+   HBASE-720   clean up inconsistencies around deletes (Izaak Rubin via Stack)
+   HBASE-796   Deprecates Text methods from HTable
+               (Michael Gottesman via Stack)
+
+  BUG FIXES
+   HBASE-574   HBase does not load hadoop native libs (Rong-En Fan via Stack)
+   HBASE-598   Loggging, no .log file; all goes into .out
+   HBASE-622   Remove StaticTestEnvironment and put a log4j.properties in src/test
+   HBASE-624   Master will shut down if number of active region servers is zero
+               even if shutdown was not requested
+   HBASE-629   Split reports incorrect elapsed time
+   HBASE-623   Migration script for hbase-82
+   HBASE-630   Default hbase.rootdir is garbage
+   HBASE-589   Remove references to deprecated methods in Hadoop once
+               hadoop-0.17.0 is released
+   HBASE-638   Purge \r from src
+   HBASE-644   DroppedSnapshotException but RegionServer doesn't restart
+   HBASE-641   Improve master split logging
+   HBASE-642   Splitting log in a hostile environment -- bad hdfs -- we drop
+               write-ahead-log edits
+   HBASE-646   EOFException opening HStoreFile info file (spin on HBASE-645and 550)
+   HBASE-648   If mapfile index is empty, run repair
+   HBASE-640   TestMigrate failing on hudson
+   HBASE-651   Table.commit should throw NoSuchColumnFamilyException if column
+               family doesn't exist
+   HBASE-649   API polluted with default and protected access data members and methods
+   HBASE-650   Add String versions of get, scanner, put in HTable
+   HBASE-656   Do not retry exceptions such as unknown scanner or illegal argument
+   HBASE-659   HLog#cacheFlushLock not cleared; hangs a region
+   HBASE-663   Incorrect sequence number for cache flush
+   HBASE-655   Need programmatic way to add column family: need programmatic way
+               to enable/disable table
+   HBASE-654   API HTable.getMetadata().addFamily shouldn't be exposed to user
+   HBASE-666   UnmodifyableHRegionInfo gives the wrong encoded name
+   HBASE-668   HBASE-533 broke build
+   HBASE-670   Historian deadlocks if regionserver is at global memory boundary
+               and is hosting .META.
+   HBASE-665   Server side scanner doesn't honor stop row
+   HBASE-662   UI in table.jsp gives META locations, not the table's regions
+               location (Jean-Daniel Cryans via Stack)
+   HBASE-676   Bytes.getInt returns a long (Clint Morgan via Stack)
+   HBASE-680   Config parameter hbase.io.index.interval  should be
+               hbase.index.interval, according to HBaseMapFile.HbaseWriter
+               (LN via Stack)
+   HBASE-682   Unnecessary iteration in HMemcache.internalGet? got much better
+               reading performance after break it (LN via Stack)
+   HBASE-686   MemcacheScanner didn't return the first row(if it exists),
+               because HScannerInterface's output incorrect (LN via Jim Kellerman)
+   HBASE-691   get* and getScanner are different in how they treat column parameter
+   HBASE-694   HStore.rowAtOrBeforeFromMapFile() fails to locate the row if # of mapfiles >= 2
+               (Rong-En Fan via Bryan)
+   HBASE-652   dropping table fails silently if table isn't disabled
+   HBASE-683   can not get svn revision # at build time if locale is not english
+               (Rong-En Fan via Stack)
+   HBASE-699   Fix TestMigrate up on Hudson
+   HBASE-615   Region balancer oscillates during cluster startup
+   HBASE-613   Timestamp-anchored scanning fails to find all records
+   HBASE-681   NPE in Memcache
+   HBASE-701   Showing bytes in log when should be String
+   HBASE-702   deleteall doesn't
+   HBASE-704   update new shell docs and commands on help menu
+   HBASE-709   Deadlock while rolling WAL-log while finishing flush
+   HBASE-710   If clocks are way off, then we can have daughter split come
+               before rather than after its parent in .META.
+   HBASE-714   Showing bytes in log when should be string (2)
+   HBASE-627   Disable table doesn't work reliably
+   HBASE-716   TestGet2.testGetClosestBefore fails with hadoop-0.17.1
+   HBASE-715   Base HBase 0.2 on Hadoop 0.17.1
+   HBASE-718   hbase shell help info
+   HBASE-717   alter table broke with new shell returns InvalidColumnNameException
+   HBASE-573   HBase does not read hadoop-*.xml for dfs configuration after 
+               moving out hadoop/contrib
+   HBASE-11    Unexpected exits corrupt DFS
+   HBASE-12    When hbase regionserver restarts, it says "impossible state for
+               createLease()"
+   HBASE-575   master dies with stack overflow error if rootdir isn't qualified
+   HBASE-582   HBase 554 forgot to clear results on each iteration caused by a filter
+               (Clint Morgan via Stack)
+   HBASE-532   Odd interaction between HRegion.get, HRegion.deleteAll and compactions
+   HBASE-10    HRegionServer hangs upon exit due to DFSClient Exception
+   HBASE-595   RowFilterInterface.rowProcessed() is called *before* fhe final
+               filtering decision is made (Clint Morgan via Stack)
+   HBASE-586   HRegion runs HStore memcache snapshotting -- fix it so only HStore
+               knows about workings of memcache
+   HBASE-588   Still a 'hole' in scanners, even after HBASE-532
+   HBASE-604   Don't allow CLASSPATH from environment pollute the hbase CLASSPATH
+   HBASE-608   HRegionServer::getThisIP() checks hadoop config var for dns interface name
+               (Jim R. Wilson via Stack)
+   HBASE-609   Master doesn't see regionserver edits because of clock skew
+   HBASE-607   MultiRegionTable.makeMultiRegionTable is not deterministic enough
+               for regression tests
+   HBASE-405   TIF and TOF use log4j directly rather than apache commons-logging
+   HBASE-618   We always compact if 2 files, regardless of the compaction threshold setting
+   HBASE-619   Fix 'logs' link in UI
+   HBASE-478   offlining of table does not run reliably
+   HBASE-453   undeclared throwable exception from HTable.get
+   HBASE-620   testmergetool failing in branch and trunk since hbase-618 went in
+   HBASE-550   EOF trying to read reconstruction log stops region deployment
+   HBASE-551   Master stuck splitting server logs in shutdown loop; on each
+               iteration, edits are aggregated up into the millions
+   HBASE-505   Region assignments should never time out so long as the region
+               server reports that it is processing the open request
+   HBASE-561   HBase package does not include LICENSE.txt nor build.xml
+   HBASE-563   TestRowFilterAfterWrite erroneously sets master address to
+               0.0.0.0:60100 rather than relying on conf
+   HBASE-507   Use Callable pattern to sleep between retries
+   HBASE-564   Don't do a cache flush if there are zero entries in the cache.
+   HBASE-554   filters generate StackOverflowException
+   HBASE-567   Reused BatchUpdate instances accumulate BatchOperations
+   HBASE-577   NPE getting scanner
+   HBASE-19    CountingBloomFilter can overflow its storage
+               (Stu Hood and Bryan Duxbury via Stack)
+   HBASE-28    thrift put/mutateRow methods need to throw IllegalArgument
+               exceptions (Dave Simpson via Bryan Duxbury via Stack)
+   HBASE-2     hlog numbers should wrap around when they reach 999
+               (Bryan Duxbury via Stack)
+   HBASE-421   TestRegionServerExit broken
+   HBASE-426   hbase can't find remote filesystem
+   HBASE-437   Clear Command should use system.out (Edward Yoon via Stack)
+   HBASE-434, HBASE-435 TestTableIndex and TestTableMapReduce failed in Hudson builds
+   HBASE-446   Fully qualified hbase.rootdir doesn't work
+   HBASE-438   XMLOutputter state should be initialized. (Edward Yoon via Stack)
+   HBASE-8     Delete table does not remove the table directory in the FS
+   HBASE-428   Under continuous upload of rows, WrongRegionExceptions are thrown
+               that reach the client even after retries
+   HBASE-460   TestMigrate broken when HBase moved to subproject   
+   HBASE-462   Update migration tool
+   HBASE-473   When a table is deleted, master sends multiple close messages to
+               the region server
+   HBASE-490   Doubly-assigned .META.; master uses one and clients another
+   HBASE-492   hbase TRUNK does not build against hadoop TRUNK
+   HBASE-496   impossible state for createLease writes 400k lines in about 15mins
+   HBASE-472   Passing on edits, we dump all to log
+   HBASE-495   No server address listed in .META.
+   HBASE-433 HBASE-251 Region server should delete restore log after successful
+               restore, Stuck replaying the edits of crashed machine.
+   HBASE-27    hregioninfo cell empty in meta table
+   HBASE-501   Empty region server address in info:server entry and a
+               startcode of -1 in .META.
+   HBASE-516   HStoreFile.finalKey does not update the final key if it is not
+               the top region of a split region
+   HBASE-525   HTable.getRow(Text) does not work (Clint Morgan via Bryan Duxbury)
+   HBASE-524   Problems with getFull
+   HBASE-528   table 'does not exist' when it does
+   HBASE-531   Merge tool won't merge two overlapping regions (port HBASE-483 to
+               trunk)
+   HBASE-537   Wait for hdfs to exit safe mode
+   HBASE-476   RegexpRowFilter behaves incorectly when there are multiple store
+               files (Clint Morgan via Jim Kellerman)
+   HBASE-527   RegexpRowFilter does not work when there are columns from 
+               multiple families (Clint Morgan via Jim Kellerman)
+   HBASE-534   Double-assignment at SPLIT-time
+   HBASE-712   midKey found compacting is the first, not necessarily the optimal
+   HBASE-719   Find out why users have network problems in HBase and not in Hadoop
+               and HConnectionManager (Jean-Daniel Cryans via Stack)
+   HBASE-703   Invalid regions listed by regionserver.jsp (Izaak Rubin via Stack)
+   HBASE-674   Memcache size unreliable
+   HBASE-726   Unit tests won't run because of a typo (Sebastien Rainville via Stack)
+   HBASE-727   Client caught in an infinite loop when trying to connect to cached
+               server locations (Izaak Rubin via Stack)
+   HBASE-732   shell formatting error with the describe command
+               (Izaak Rubin via Stack)
+   HBASE-731   delete, deletefc in HBase shell do not work correctly
+               (Izaak Rubin via Stack)
+   HBASE-734   scan '.META.', {LIMIT => 10} crashes (Izaak Rubin via Stack)
+   HBASE-736   Should have HTable.deleteAll(String row) and HTable.deleteAll(Text row)
+               (Jean-Daniel Cryans via Stack)
+   HBASE-740   ThriftServer getting table names incorrectly (Tim Sell via Stack)
+   HBASE-742   Rename getMetainfo in HTable as getTableDescriptor
+   HBASE-739   HBaseAdmin.createTable() using old HTableDescription doesn't work
+               (Izaak Rubin via Stack)
+   HBASE-744   BloomFilter serialization/deserialization broken
+   HBASE-742   Column length limit is not enforced (Jean-Daniel Cryans via Stack)
+   HBASE-737   Scanner: every cell in a row has the same timestamp
+   HBASE-700   hbase.io.index.interval need be configuratable in column family
+               (Andrew Purtell via Stack)
+   HBASE-62    Allow user add arbitrary key/value pairs to table and column
+               descriptors (Andrew Purtell via Stack)
+   HBASE-34    Set memcache flush size per column (Andrew Purtell via Stack)
+   HBASE-42    Set region split size on table creation (Andrew Purtell via Stack)
+   HBASE-43    Add a read-only attribute to columns (Andrew Purtell via Stack)
+   HBASE-424   Should be able to enable/disable .META. table
+   HBASE-679   Regionserver addresses are still not right in the new tables page
+   HBASE-758   Throwing IOE read-only when should be throwing NSRE
+   HBASE-743   bin/hbase migrate upgrade fails when redo logs exists
+   HBASE-754   The JRuby shell documentation is wrong in "get" and "put"
+               (Jean-Daniel Cryans via Stack)
+   HBASE-756   In HBase shell, the put command doesn't process the timestamp
+               (Jean-Daniel Cryans via Stack)
+   HBASE-757   REST mangles table names (Sishen via Stack)
+   HBASE-706   On OOME, regionserver sticks around and doesn't go down with cluster
+               (Jean-Daniel Cryans via Stack)
+   HBASE-759   TestMetaUtils failing on hudson
+   HBASE-761   IOE: Stream closed exception all over logs
+   HBASE-763   ClassCastException from RowResult.get(String)
+               (Andrew Purtell via Stack)
+   HBASE-764   The name of column request has padding zero using REST interface
+               (Sishen Freecity via Stack)
+   HBASE-750   NPE caused by StoreFileScanner.updateReaders
+   HBASE-769   TestMasterAdmin fails throwing RegionOfflineException when we're
+               expecting IllegalStateException
+   HBASE-766   FileNotFoundException trying to load HStoreFile 'data'
+   HBASE-770   Update HBaseRPC to match hadoop 0.17 RPC
+   HBASE-780   Can't scan '.META.' from new shell
+   HBASE-424   Should be able to enable/disable .META. table
+   HBASE-771   Names legal in 0.1 are not in 0.2; breaks migration
+   HBASE-788   Div by zero in Master.jsp (Clint Morgan via Jim Kellerman)
+   HBASE-791   RowCount doesn't work (Jean-Daniel Cryans via Stack)
+   HBASE-751   dfs exception and regionserver stuck during heavy write load
+   HBASE-793   HTable.getStartKeys() ignores table names when matching columns
+               (Andrew Purtell and Dru Jensen via Stack)
+   HBASE-790   During import, single region blocks requests for >10 minutes,
+               thread dumps, throws out pending requests, and continues
+               (Jonathan Gray via Stack)
+   
+  IMPROVEMENTS
+   HBASE-559   MR example job to count table rows
+   HBASE-596   DemoClient.py (Ivan Begtin via Stack)
+   HBASE-581   Allow adding filters to TableInputFormat (At same time, ensure TIF
+               is subclassable) (David Alves via Stack)
+   HBASE-603   When an exception bubbles out of getRegionServerWithRetries, wrap 
+               the exception with a RetriesExhaustedException
+   HBASE-600   Filters have excessive DEBUG logging
+   HBASE-611   regionserver should do basic health check before reporting
+               alls-well to the master
+   HBASE-614   Retiring regions is not used; exploit or remove
+   HBASE-538   Improve exceptions that come out on client-side
+   HBASE-569   DemoClient.php (Jim R. Wilson via Stack)
+   HBASE-522   Where new Text(string) might be used in client side method calls,
+               add an overload that takes String (Done as part of HBASE-82)
+   HBASE-570   Remove HQL unit test (Done as part of HBASE-82 commit).
+   HBASE-626   Use Visitor pattern in MetaRegion to reduce code clones in HTable
+               and HConnectionManager (Jean-Daniel Cryans via Stack)
+   HBASE-621   Make MAX_VERSIONS work like TTL: In scans and gets, check
+               MAX_VERSIONs setting and return that many only rather than wait on
+               compaction (Jean-Daniel Cryans via Stack)
+   HBASE-504   Allow HMsg's carry a payload: e.g. exception that happened over
+               on the remote side.
+   HBASE-583   RangeRowFilter/ColumnValueFilter to allow choice of rows based on
+               a (lexicographic) comparison to column's values
+               (Clint Morgan via Stack)
+   HBASE-579   Add hadoop 0.17.x
+   HBASE-660   [Migration] addColumn/deleteColumn functionality in MetaUtils
+   HBASE-632   HTable.getMetadata is very inefficient
+   HBASE-671   New UI page displaying all regions in a table should be sorted
+   HBASE-672   Sort regions in the regionserver UI
+   HBASE-677   Make HTable, HRegion, HRegionServer, HStore, and HColumnDescriptor
+               subclassable (Clint Morgan via Stack)
+   HBASE-682   Regularize toString
+   HBASE-672   Sort regions in the regionserver UI
+   HBASE-469   Streamline HStore startup and compactions
+   HBASE-544   Purge startUpdate from internal code and test cases
+   HBASE-557   HTable.getRow() should receive RowResult objects
+   HBASE-452   "region offline" should throw IOException, not IllegalStateException
+   HBASE-541   Update hadoop jars.
+   HBASE-523   package-level javadoc should have example client
+   HBASE-415   Rewrite leases to use DelayedBlockingQueue instead of polling
+   HBASE-35    Make BatchUpdate public in the API
+   HBASE-409   Add build path to svn:ignore list (Edward Yoon via Stack)
+   HBASE-408   Add .classpath and .project to svn:ignore list
+               (Edward Yoon via Stack)
+   HBASE-410   Speed up the test suite (make test timeout 5 instead of 15 mins).
+   HBASE-281   Shell should allow deletions in .META. and -ROOT- tables
+               (Edward Yoon & Bryan Duxbury via Stack)
+   HBASE-56    Unnecessary HQLClient Object creation in a shell loop
+               (Edward Yoon via Stack)
+   HBASE-3     rest server: configure number of threads for jetty
+               (Bryan Duxbury via Stack)
+   HBASE-416   Add apache-style logging to REST server and add setting log
+               level, etc.
+   HBASE-406   Remove HTable and HConnection close methods
+               (Bryan Duxbury via Stack)
+   HBASE-418   Move HMaster and related classes into master package
+               (Bryan Duxbury via Stack)
+   HBASE-410   Speed up the test suite - Apparently test timeout was too
+               aggressive for Hudson. TestLogRolling timed out even though it
+               was operating properly. Change test timeout to 10 minutes.
+   HBASE-436   website: http://hadoop.apache.org/hbase
+   HBASE-417   Factor TableOperation and subclasses into separate files from
+               HMaster (Bryan Duxbury via Stack)
+   HBASE-440   Add optional log roll interval so that log files are garbage
+               collected
+   HBASE-407   Keep HRegionLocation information in LRU structure 
+   HBASE-444   hbase is very slow at determining table is not present
+   HBASE-438   XMLOutputter state should be initialized.
+   HBASE-414   Move client classes into client package
+   HBASE-79    When HBase needs to be migrated, it should display a message on
+               stdout, not just in the logs
+   HBASE-461   Simplify leases.
+   HBASE-419   Move RegionServer and related classes into regionserver package
+   HBASE-457   Factor Master into Master, RegionManager, and ServerManager
+   HBASE-464   HBASE-419 introduced javadoc errors
+   HBASE-468   Move HStoreKey back to o.a.h.h
+   HBASE-442   Move internal classes out of HRegionServer
+   HBASE-466   Move HMasterInterface, HRegionInterface, and 
+               HMasterRegionInterface into o.a.h.h.ipc
+   HBASE-479   Speed up TestLogRolling
+   HBASE-480   Tool to manually merge two regions
+   HBASE-477   Add support for an HBASE_CLASSPATH
+   HBASE-443   Move internal classes out of HStore
+   HBASE-515   At least double default timeouts between regionserver and master
+   HBASE-529   RegionServer needs to recover if datanode goes down
+   HBASE-456   Clearly state which ports need to be opened in order to run HBase
+   HBASE-536   Remove MiniDFS startup from MiniHBaseCluster
+   HBASE-521   Improve client scanner interface
+   HBASE-562   Move Exceptions to subpackages (Jean-Daniel Cryans via Stack)
+   HBASE-631   HTable.getRow() for only a column family
+               (Jean-Daniel Cryans via Stack)
+   HBASE-731   Add a meta refresh tag to the Web ui for master and region server
+               (Jean-Daniel Cryans via Stack)
+   HBASE-735   hbase shell doesn't trap CTRL-C signal (Jean-Daniel Cryans via Stack)
+   HBASE-730   On startup, rinse STARTCODE and SERVER from .META.
+               (Jean-Daniel Cryans via Stack)
+   HBASE-738   overview.html in need of updating (Izaak Rubin via Stack)
+   HBASE-745   scaling of one regionserver, improving memory and cpu usage (partial)
+               (LN via Stack)
+   HBASE-746   Batching row mutations via thrift (Tim Sell via Stack)
+   HBASE-772   Up default lease period from 60 to 120 seconds
+   HBASE-779   Test changing hbase.hregion.memcache.block.multiplier to 2
+   HBASE-783   For single row, single family retrieval, getRow() works half
+               as fast as getScanner().next() (Jean-Daniel Cryans via Stack)
+   HBASE-789   add clover coverage report targets (Rong-en Fan via Stack)
+
+  NEW FEATURES
+   HBASE-47    Option to set TTL for columns in hbase
+               (Andrew Purtell via Bryan Duxbury and Stack)
+   HBASE-23    UI listing regions should be sorted by address and show additional
+               region state (Jean-Daniel Cryans via Stack)
+   HBASE-639   Add HBaseAdmin.getTableDescriptor function
+   HBASE-533   Region Historian
+   HBASE-487   Replace hql w/ a hbase-friendly jirb or jython shell
+   HBASE-548   Tool to online single region
+   HBASE-71    Master should rebalance region assignments periodically
+   HBASE-512   Add configuration for global aggregate memcache size
+   HBASE-40    Add a method of getting multiple (but not all) cells for a row
+               at once
+   HBASE-506   When an exception has to escape ServerCallable due to exhausted
+               retries, show all the exceptions that lead to this situation
+   HBASE-747   Add a simple way to do batch updates of many rows (Jean-Daniel
+               Cryans via JimK)
+   HBASE-733   Enhance Cell so that it can contain multiple values at multiple
+               timestamps
+   HBASE-511   Do exponential backoff in clients on NSRE, WRE, ISE, etc.
+               (Andrew Purtell via Jim Kellerman)
+   
+  OPTIMIZATIONS
+   HBASE-430   Performance: Scanners and getRow return maps with duplicate data
+
+Release 0.1.3 - 07/25/2008
+
+  BUG FIXES
+   HBASE-644   DroppedSnapshotException but RegionServer doesn't restart
+   HBASE-645   EOFException opening region (HBASE-550 redux)
+   HBASE-641   Improve master split logging
+   HBASE-642   Splitting log in a hostile environment -- bad hdfs -- we drop
+               write-ahead-log edits
+   HBASE-646   EOFException opening HStoreFile info file (spin on HBASE-645 and 550)
+   HBASE-648   If mapfile index is empty, run repair
+   HBASE-659   HLog#cacheFlushLock not cleared; hangs a region
+   HBASE-663   Incorrect sequence number for cache flush
+   HBASE-652   Dropping table fails silently if table isn't disabled 
+   HBASE-674   Memcache size unreliable
+   HBASE-665   server side scanner doesn't honor stop row
+   HBASE-681   NPE in Memcache (Clint Morgan via Jim Kellerman)
+   HBASE-680   config parameter hbase.io.index.interval should be
+               hbase.index.interval, accroding to HBaseMapFile.HbaseWriter
+               (LN via Stack)
+   HBASE-684   unnecessary iteration in HMemcache.internalGet? got much better
+               reading performance after break it (LN via Stack)
+   HBASE-686   MemcacheScanner didn't return the first row(if it exists),
+               because HScannerInterface's output incorrect (LN via Jim Kellerman)
+   HBASE-613   Timestamp-anchored scanning fails to find all records
+   HBASE-709   Deadlock while rolling WAL-log while finishing flush
+   HBASE-707   High-load import of data into single table/family never triggers split
+   HBASE-710   If clocks are way off, then we can have daughter split come
+               before rather than after its parent in .META.
+
+Release 0.1.2 - 05/13/2008
+
+  BUG FIXES
+   HBASE-577   NPE getting scanner
+   HBASE-574   HBase does not load hadoop native libs (Rong-En Fan via Stack).
+   HBASE-11    Unexpected exits corrupt DFS - best we can do until we have at
+               least a subset of HADOOP-1700
+   HBASE-573   HBase does not read hadoop-*.xml for dfs configuration after
+               moving out hadoop/contrib
+   HBASE-12    when hbase regionserver restarts, it says "impossible state for
+               createLease()"
+   HBASE-575   master dies with stack overflow error if rootdir isn't qualified
+   HBASE-500   Regionserver stuck on exit
+   HBASE-582   HBase 554 forgot to clear results on each iteration caused by a filter
+               (Clint Morgan via Stack)
+   HBASE-532   Odd interaction between HRegion.get, HRegion.deleteAll and compactions
+   HBASE-590   HBase migration tool does not get correct FileSystem or root
+               directory if configuration is not correct
+   HBASE-595   RowFilterInterface.rowProcessed() is called *before* fhe final
+               filtering decision is made (Clint Morgan via Stack)
+   HBASE-586   HRegion runs HStore memcache snapshotting -- fix it so only HStore
+               knows about workings of memcache
+   HBASE-572   Backport HBASE-512 to 0.1 branch
+   HBASE-588   Still a 'hole' in scanners, even after HBASE-532
+   HBASE-604   Don't allow CLASSPATH from environment pollute the hbase CLASSPATH
+   HBASE-608   HRegionServer::getThisIP() checks hadoop config var for dns interface name
+               (Jim R. Wilson via Stack)
+   HBASE-609   Master doesn't see regionserver edits because of clock skew
+   HBASE-607   MultiRegionTable.makeMultiRegionTable is not deterministic enough
+               for regression tests
+   HBASE-478   offlining of table does not run reliably
+   HBASE-618   We always compact if 2 files, regardless of the compaction threshold setting
+   HBASE-619   Fix 'logs' link in UI
+   HBASE-620   testmergetool failing in branch and trunk since hbase-618 went in
+   
+  IMPROVEMENTS
+   HBASE-559   MR example job to count table rows
+   HBASE-578   Upgrade branch to 0.16.3 hadoop.
+   HBASE-596   DemoClient.py (Ivan Begtin via Stack)
+
+
+Release 0.1.1 - 04/11/2008
+
+  BUG FIXES
+   HBASE-550   EOF trying to read reconstruction log stops region deployment
+   HBASE-551   Master stuck splitting server logs in shutdown loop; on each
+               iteration, edits are aggregated up into the millions
+   HBASE-505   Region assignments should never time out so long as the region
+               server reports that it is processing the open request
+   HBASE-552   Fix bloom filter bugs (Andrzej Bialecki via Jim Kellerman)
+   HBASE-507   Add sleep between retries
+   HBASE-555   Only one Worker in HRS; on startup, if assigned tens of regions,
+               havoc of reassignments because open processing is done in series
+   HBASE-547   UI shows hadoop version, not hbase version
+   HBASE-561   HBase package does not include LICENSE.txt nor build.xml
+   HBASE-556   Add 0.16.2 to hbase branch -- if it works
+   HBASE-563   TestRowFilterAfterWrite erroneously sets master address to
+               0.0.0.0:60100 rather than relying on conf
+   HBASE-554   filters generate StackOverflowException (Clint Morgan via
+               Jim Kellerman)
+   HBASE-567   Reused BatchUpdate instances accumulate BatchOperations
+
+  NEW FEATURES
+   HBASE-548   Tool to online single region
+
+Release 0.1.0
+
+  INCOMPATIBLE CHANGES
+   HADOOP-2750 Deprecated methods startBatchUpdate, commitBatch, abortBatch, 
+               and renewLease have been removed from HTable (Bryan Duxbury via
+               Jim Kellerman)
+   HADOOP-2786 Move hbase out of hadoop core
+   HBASE-403   Fix build after move of hbase in svn
+   HBASE-494   Up IPC version on 0.1 branch so we cannot mistakenly connect
+               with a hbase from 0.16.0
+
+  NEW FEATURES
+   HBASE-506   When an exception has to escape ServerCallable due to exhausted retries, 
+               show all the exceptions that lead to this situation
+
+  OPTIMIZATIONS
+
+  BUG FIXES
+   HADOOP-2731 Under load, regions become extremely large and eventually cause
+               region servers to become unresponsive
+   HADOOP-2693 NPE in getClosestRowBefore (Bryan Duxbury & Stack)
+   HADOOP-2599 Some minor improvements to changes in HADOOP-2443
+               (Bryan Duxbury & Stack)
+   HADOOP-2773 Master marks region offline when it is recovering from a region
+               server death
+   HBASE-425   Fix doc. so it accomodates new hbase untethered context
+   HBase-421   TestRegionServerExit broken
+   HBASE-426   hbase can't find remote filesystem
+   HBASE-446   Fully qualified hbase.rootdir doesn't work
+   HBASE-428   Under continuous upload of rows, WrongRegionExceptions are
+               thrown that reach the client even after retries
+   HBASE-490   Doubly-assigned .META.; master uses one and clients another
+   HBASE-496   impossible state for createLease writes 400k lines in about 15mins
+   HBASE-472   Passing on edits, we dump all to log
+   HBASE-79    When HBase needs to be migrated, it should display a message on
+               stdout, not just in the logs
+   HBASE-495   No server address listed in .META.
+   HBASE-433 HBASE-251 Region server should delete restore log after successful
+               restore, Stuck replaying the edits of crashed machine.
+   HBASE-27    hregioninfo cell empty in meta table
+   HBASE-501   Empty region server address in info:server entry and a
+               startcode of -1 in .META.
+   HBASE-516   HStoreFile.finalKey does not update the final key if it is not
+               the top region of a split region
+   HBASE-524   Problems with getFull
+   HBASE-514   table 'does not exist' when it does
+   HBASE-537   Wait for hdfs to exit safe mode
+   HBASE-534   Double-assignment at SPLIT-time
+   
+  IMPROVEMENTS
+   HADOOP-2555 Refactor the HTable#get and HTable#getRow methods to avoid
+               repetition of retry-on-failure logic (thanks to Peter Dolan and
+               Bryan Duxbury)

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