172 lines
9.3 KiB
Plaintext
172 lines
9.3 KiB
Plaintext
HBase Change Log
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Trunk (unreleased changes)
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INCOMPATIBLE CHANGES
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NEW FEATURES
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HADOOP-1768 FS command using Hadoop FsShell operations
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(Edward Yoon via Stack)
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HADOOP-1784 Delete: Fix scanners and gets so they work properly in presence
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of deletes. Added a deleteAll to remove all cells equal to or
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older than passed timestamp. Fixed compaction so deleted cells
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do not make it out into compacted output. Ensure also that
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versions > column max are dropped compacting.
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HADOOP-1720 Addition of HQL (Hbase Query Language) support in Hbase Shell.
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The old shell syntax has been replaced by HQL, a small SQL-like
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set of operators, for creating, altering, dropping, inserting,
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deleting, and selecting, etc., data in hbase.
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(Inchul Song and Edward Yoon via Stack)
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OPTIMIZATIONS
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BUG FIXES
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HADOOP-1527 Region server won't start because logdir exists
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HADOOP-1723 If master asks region server to shut down, by-pass return of
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shutdown message
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HADOOP-1729 Recent renaming or META tables breaks hbase shell
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HADOOP-1730 unexpected null value causes META scanner to exit (silently)
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HADOOP-1747 On a cluster, on restart, regions multiply assigned
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HADOOP-1776 Fix for sporadic compaction failures closing and moving
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compaction result
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HADOOP-1780 Regions are still being doubly assigned
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HADOOP-1797 Fix NPEs in MetaScanner constructor
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HADOOP-1799 Incorrect classpath in binary version of Hadoop
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HADOOP-1805 Region server hang on exit
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HADOOP-1785 TableInputFormat.TableRecordReader.next has a bug
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(Ning Li via Stack)
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HADOOP-1800 output should default utf8 encoding
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HADOOP-1801 When hdfs is yanked out from under hbase, hbase should go down gracefully
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HADOOP-1813 OOME makes zombie of region server
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HADOOP-1814 TestCleanRegionServerExit fails too often on Hudson
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HADOOP-1821 Replace all String.getBytes() with String.getBytes("UTF-8")
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HADOOP-1832 listTables() returns duplicate tables
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HADOOP-1834 Scanners ignore timestamp passed on creation
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HADOOP-1847 Many HBase tests do not fail well.
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HADOOP-1847 Many HBase tests do not fail well. (phase 2)
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HADOOP-1870 Once file system failure has been detected, don't check it again
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and get on with shutting down the hbase cluster.
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HADOOP-1888 NullPointerException in HMemcacheScanner (reprise)
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HADOOP-1903 Possible data loss if Exception happens between snapshot and flush
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to disk.
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IMPROVEMENTS
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HADOOP-1737 Make HColumnDescriptor data publically members settable
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HADOOP-1746 Clean up findbugs warnings
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HADOOP-1757 Bloomfilters: single argument constructor, use enum for bloom
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filter types
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HADOOP-1760 Use new MapWritable and SortedMapWritable classes from
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org.apache.hadoop.io
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HADOOP-1793 (Phase 1) Remove TestHClient (Phase2) remove HClient.
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HADOOP-1794 Remove deprecated APIs
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HADOOP-1802 Startup scripts should wait until hdfs as cleared 'safe mode'
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HADOOP-1833 bin/stop_hbase.sh returns before it completes
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(Izaak Rubin via Stack)
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HADOOP-1835 Updated Documentation for HBase setup/installation
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(Izaak Rubin via Stack)
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HADOOP-1868 Make default configuration more responsive
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HADOOP-1884 Remove useless debugging log messages from hbase.mapred
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Below are the list of changes before 2007-08-18
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1. HADOOP-1384. HBase omnibus patch. (jimk, Vuk Ercegovac, and Michael Stack)
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2. HADOOP-1402. Fix javadoc warnings in hbase contrib. (Michael Stack)
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3. HADOOP-1404. HBase command-line shutdown failing (Michael Stack)
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4. HADOOP-1397. Replace custom hbase locking with
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java.util.concurrent.locks.ReentrantLock (Michael Stack)
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5. HADOOP-1403. HBase reliability - make master and region server more fault
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tolerant.
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6. HADOOP-1418. HBase miscellaneous: unit test for HClient, client to do
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'Performance Evaluation', etc.
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7. HADOOP-1420, HADOOP-1423. Findbugs changes, remove reference to removed
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class HLocking.
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8. HADOOP-1424. TestHBaseCluster fails with IllegalMonitorStateException. Fix
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regression introduced by HADOOP-1397.
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9. HADOOP-1426. Make hbase scripts executable + add test classes to CLASSPATH.
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10. HADOOP-1430. HBase shutdown leaves regionservers up.
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11. HADOOP-1392. Part1: includes create/delete table; enable/disable table;
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add/remove column.
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12. HADOOP-1392. Part2: includes table compaction by merging adjacent regions
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that have shrunk in size.
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13. HADOOP-1445 Support updates across region splits and compactions
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14. HADOOP-1460 On shutdown IOException with complaint 'Cannot cancel lease
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that is not held'
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15. HADOOP-1421 Failover detection, split log files.
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For the files modified, also clean up javadoc, class, field and method
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visibility (HADOOP-1466)
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16. HADOOP-1479 Fix NPE in HStore#get if store file only has keys < passed key.
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17. HADOOP-1476 Distributed version of 'Performance Evaluation' script
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18. HADOOP-1469 Asychronous table creation
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19. HADOOP-1415 Integrate BSD licensed bloom filter implementation.
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20. HADOOP-1465 Add cluster stop/start scripts for hbase
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21. HADOOP-1415 Provide configurable per-column bloom filters - part 2.
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22. HADOOP-1498. Replace boxed types with primitives in many places.
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23. HADOOP-1509. Made methods/inner classes in HRegionServer and HClient protected
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instead of private for easier extension. Also made HRegion and HRegionInfo public too.
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Added an hbase-default.xml property for specifying what HRegionInterface extension to use
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for proxy server connection. (James Kennedy via Jim Kellerman)
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24. HADOOP-1534. [hbase] Memcache scanner fails if start key not present
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25. HADOOP-1537. Catch exceptions in testCleanRegionServerExit so we can see
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what is failing.
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26. HADOOP-1543 [hbase] Add HClient.tableExists
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27. HADOOP-1519 [hbase] map/reduce interface for HBase. (Vuk Ercegovac and
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Jim Kellerman)
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28. HADOOP-1523 Hung region server waiting on write locks
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29. HADOOP-1560 NPE in MiniHBaseCluster on Windows
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30. HADOOP-1531 Add RowFilter to HRegion.HScanner
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Adds a row filtering interface and two implemenentations: A page scanner,
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and a regex row/column-data matcher. (James Kennedy via Stack)
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31. HADOOP-1566 Key-making utility
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32. HADOOP-1415 Provide configurable per-column bloom filters.
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HADOOP-1466 Clean up visibility and javadoc issues in HBase.
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33. HADOOP-1538 Provide capability for client specified time stamps in HBase
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HADOOP-1466 Clean up visibility and javadoc issues in HBase.
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34. HADOOP-1589 Exception handling in HBase is broken over client server connections
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35. HADOOP-1375 a simple parser for hbase (Edward Yoon via Stack)
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36. HADOOP-1600 Update license in HBase code
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37. HADOOP-1589 Exception handling in HBase is broken over client server
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38. HADOOP-1574 Concurrent creates of a table named 'X' all succeed
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39. HADOOP-1581 Un-openable tablename bug
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40. HADOOP-1607 [shell] Clear screen command (Edward Yoon via Stack)
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41. HADOOP-1614 [hbase] HClient does not protect itself from simultaneous updates
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42. HADOOP-1468 Add HBase batch update to reduce RPC overhead
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43. HADOOP-1616 Sporadic TestTable failures
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44. HADOOP-1615 Replacing thread notification-based queue with
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java.util.concurrent.BlockingQueue in HMaster, HRegionServer
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45. HADOOP-1606 Updated implementation of RowFilterSet, RowFilterInterface
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(Izaak Rubin via Stack)
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46. HADOOP-1579 Add new WhileMatchRowFilter and StopRowFilter filters
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(Izaak Rubin via Stack)
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47. HADOOP-1637 Fix to HScanner to Support Filters, Add Filter Tests to
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TestScanner2 (Izaak Rubin via Stack)
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48. HADOOP-1516 HClient fails to readjust when ROOT or META redeployed on new
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region server
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49. HADOOP-1646 RegionServer OOME's under sustained, substantial loading by
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10 concurrent clients
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50. HADOOP-1468 Add HBase batch update to reduce RPC overhead (restrict batches
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to a single row at a time)
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51. HADOOP-1528 HClient for multiple tables (phase 1) (James Kennedy & JimK)
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52. HADOOP-1528 HClient for multiple tables (phase 2) all HBase client side code
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(except TestHClient and HBaseShell) have been converted to use the new client
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side objects (HTable/HBaseAdmin/HConnection) instead of HClient.
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53. HADOOP-1528 HClient for multiple tables - expose close table function
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54. HADOOP-1466 Clean up warnings, visibility and javadoc issues in HBase.
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55. HADOOP-1662 Make region splits faster
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56. HADOOP-1678 On region split, master should designate which host should
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serve daughter splits. Phase 1: Master balances load for new regions and
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when a region server fails.
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57. HADOOP-1678 On region split, master should designate which host should
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serve daughter splits. Phase 2: Master assigns children of split region
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instead of HRegionServer serving both children.
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58. HADOOP-1710 All updates should be batch updates
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59. HADOOP-1711 HTable API should use interfaces instead of concrete classes as
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method parameters and return values
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60. HADOOP-1644 Compactions should not block updates
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60. HADOOP-1672 HBase Shell should use new client classes
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(Edward Yoon via Stack).
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61. HADOOP-1709 Make HRegionInterface more like that of HTable
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HADOOP-1725 Client find of table regions should not include offlined, split parents
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