-HConnectionManager#locateRegionInMeta no longer throws ISE, instead throws new RegionOfflineException
-Removed duplicated code for catching exceptions for retries
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@644854 13f79535-47bb-0310-9956-ffa450edef68
-Updated HRegionInterface, HRegionServer, HRegion, HStore to provide RowResults as the return of getRow methods
-Updated HTable to expect RowResult objects
-Updated ThriftServer to expect RowResults
-Cleaned up HConnectionManager's interaction with region servers
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@644828 13f79535-47bb-0310-9956-ffa450edef68
Removes startUpdate calls from all but a few places. TestBatchUpdate and TestMultipleUpdates both stay the same, but TMU will be removed when startUpdate is. Parts of TBU will also be whacked when we remove the deprecated methods. HTable still has its startUpdate methods.
Changed the Incommon interface to remove the startUpdate, put, delete, and commit methods, and made a new commit(BatchUpdate).
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@644811 13f79535-47bb-0310-9956-ffa450edef68
HMerge, HRegionServer
- changes that reflect changes to HRegion, CompactSplitThread and Flusher methods
ServerManager
- Return zero length array to region server if it is exiting or quiesced and Master is not yet ready to shut down.
QueueEntry
- removed. no longer used.
CompactSplitThread
- make compactionQueue a queue of HRegion.
- Add Set<HRegion> so we can quickly determine if a region is in the queue. BlockingQueue.contains() does a linear scan of the queue.
- Add a lock and interruptPolitely methods so that compactions/splits in progress are not interrupted.
- Don't add a region to the queue if it is already present.
Flusher
- change queue from DelayQueue to BlockingQueue, with HRegion entries instead of QueueEntry.
- Add Set<HRegion> to quickly determine if a region is already in the queue to avoid linear scan of BlockingQueue.contains().
- Only put regions in the queue for optional cache flush if the last time they were flushed is older than now - optionalFlushInterval.
- Only add regions to the queue if it is not already present.
HRegion
- don't request a cache flush if one has already been requested.
- Add setLastFlushTime so flusher can set it once it has queued an optional flush.
- Replace largestHStore with getLargestHStoreSize: returns long instead of HStoreSize object.
- Add midKey as parameter to splitRegion.
- Reorder start of splitRegion so it doesn't do any work before validating parameters.
- Remove needsSplit and compactIfNeeded - no longer needed.
- compactStores now returns midKey if split is needed.
- snapshotMemcaches now sets flushRequested to false and sets lastFlushTime to now.
- update does not request a cache flush if one has already been requested.
- Override equals and hashCode so HRegions can be stored in a HashSet.
HStore
- loadHStoreFiles now computes max sequence id and the initial size of the store.
- Add getter for family.
- internalCacheFlush updates store size, and logs both size of cache flush and resulting map file size (with debug logging enabled).
- Remove needsCompaction and hasReferences - no longer needed.
- compact() returns midKey if store needs to be split.
- compact() does all checking before actually starting a compaction.
- If store size is greater than desiredMaxFileSize, compact returns the midKey for the store regardless of whether a compaction was actually done.
- Added more synchronization in completeCompaction while iterating over storeFiles.
- completeCompaction computes new store size.
- New method checkSplit replaces method size. Returns midKey if store needs to be split and can be split.
HStoreSize
- removed. No longer needed.
HBaseTestCase
- only set fs if it has not already been set by a subclass.
TestTableIndex, TestTableMapReduce
- call FSUtil.deleteFully to clean up cruft left in local fs, by MapReduce
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@643761 13f79535-47bb-0310-9956-ffa450edef68
M branches/0.1/src/java/org/apache/hadoop/hbase/util/MetaUtils.java
M trunk/src/java/org/apache/hadoop/hbase/util/MetaUtils.java
(changeOnlineStatus): Added.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@643486 13f79535-47bb-0310-9956-ffa450edef68
server reports that it is processing the open request
This is patch reviewed with Jim but with the number of edits between
reports made into a configurable.
Have the HRegionServer pass down a Progressable implementation down into
Region and then down int Store where edits are replayed. Call progress
after every couple of thousand edits.
M src/java/org/apache/hadoop/hbase/HStore.java
Take a Progessable in the constructor. Call it when applying edits.
M src/java/org/apache/hadoop/hbase/HMaster.java
Update commment around MSG_REPORT_PROCESS_OPEN so its expected
that we can get more than one of these messages during a region open.
M src/java/org/apache/hadoop/hbase/HRegion.java
New constructor that takes a Progressable. Pass it to Stores on construction.
M src/java/org/apache/hadoop/hbase/HRegionServer.java
On open of a region, pass in a Progressable that adds a
MSG_REPORT_PROCESS_OPEN every time its called.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@643223 13f79535-47bb-0310-9956-ffa450edef68
on eachiteration, edits are aggregated up into the millions
M src/java/org/apache/hadoop/hbase/HLog.java
(splitLog): If an exception processing a split, catch it.
In finally, close and delete the split. Don't try retrying.
While in some circumstance, we might recover, its also
likely that we just get same exception again. If so, and
multiple files, we'll just accumulate edits until the
kingdom comes.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@643142 13f79535-47bb-0310-9956-ffa450edef68
M src/java/org/apache/hadoop/hbase/HStore.java
(Constructor) If an exception out of reconstructionLog method, log it and
keep going. Presumption is that its result of a lack of HADOOP--1700.
(reconstructionLog): Check for empty log file.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@643110 13f79535-47bb-0310-9956-ffa450edef68
-Changed MiniHBaseCluster to not start up a MiniDFS
-Changed HBaseClusterTestCase to do the work of starting up a MiniDFS.
-Added pre and post setup method to HBaseClusterTestCase so you can control what happen before MiniHBaseCluster is booted up
-Converted AbstractMergeTestCase to be a HBaseClusterTestCase
-Converted any test that used a raw MIniDFS or MiniHBaseCluster to use HBaseClusterTestCase instead
-Split TestTimestamp into two tests - one for clientside (now in o.a.h.h.client) and one for serverside (o.a.h.h.regionserver)
-Merged in Stack's changes to make bin/hbase have hadoop jars first on the classpath
-Updated PerformanceEvaluation (in --miniCluster mode) to start up a DFS first
-Fixed a bug in BaseScanner that would have allowed NPEs to be generated
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@640526 13f79535-47bb-0310-9956-ffa450edef68
-Changed HStore and Memcache methods for computing closest row at or before
-Added more test cases for verifying this functionality
-Simplified the getClosestRowBefore interface so that it does not take timestamps
-Noted that getClosestRowBefore is assumed to work correctly ONLY on tables where updates are always with ascending timestamps (method is still not a part of HTable interface, so not available to clients)
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@638598 13f79535-47bb-0310-9956-ffa450edef68
M conf/hbase-default.xml
Add hbase.hbasemaster.maxregionopen property.
M src/java/org/apache/hadoop/hbase/HStore.java
Change way we log. Do way less. Just emit sums of edits applied
and skipped rather than individual edits.
M src/java/org/apache/hadoop/hbase/HRegionServer.java
Make sleeper instance a local rather than data member.
(reportForDuty): Take a sleeper instance.
(run): Removed redundant wrap of a 'for' by a 'while'.
(constructor): If IOE, do not offline the region. Seen to be
an overreaction.
M src/java/org/apache/hadoop/hbase/HLog.java
Don't output map of all files being cleaned everytime a new
entry is added; instead just log new entry. Remove emission
of every 10k edits.
M src/java/org/apache/hadoop/hbase/HMaster.java
Up default for maxregionopen. Was seeing that playing edits
could take a long time (mostly because we used log every
edit) but no harm in this being longer. On REPORT_CLOSE,
emit region info, not just region so can see the properties
(W/o, made it hard to figure who was responsible for offlining).
Add logging of attempt # in shutdown processing.
Add logging of state flags passed to the close region. Helps
debugging. Also in close offline ONLY if we are NOT reassigning
the region (jimk find).
M src/java/org/apache/hadoop/hbase/util/Sleeper.java
Add logging of extraordinary sleeps or calculated periods
(suspicion is that we're sleeping way longer on loaded machies
and the regionserver appears hung).
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@636849 13f79535-47bb-0310-9956-ffa450edef68
-Moved out classes Memcache, StoreFileScanner, MapFileCompactionReader, and HStoreScanner, and interface CompactionReader
-Updated TestHMemcache to use the correct type declaration.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@636815 13f79535-47bb-0310-9956-ffa450edef68
Summary of changes:
HMaster:
- When a row has an empty HRegionInfo (info:regioninfo), log it with the row name and and the other keys still in the row.
- Log the number of rows with empty HRegionInfo
- Delete the rows
- Make RowMap inner class static, change methods to have package scope to avoid synthetic accessors.
- Provide row name to getHRegionInfo so it can issue better log messages
- add method deleteEmptyMetaRows to remove rows with empty HRegionInfo
HRegion
- change removeRegionFromMETA to use deleteAll rather than using a BatchUpdate containing deletes for each cell.
TestEmptyMetaInfo
- new test case
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@636589 13f79535-47bb-0310-9956-ffa450edef68
HLog
- don't overwrite oldlogfile in splitLog if it already exists. Rename it and copy it into the new oldlogfile. Then delete it once it has been copied.
- use FileUtil.fullyDelete to delete region server log directory.
HRegion
- delete oldlogfile once it has been successfully processed
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@636396 13f79535-47bb-0310-9956-ffa450edef68
Other miscellaneous changes included:
IdentityTableReduce
- Added SuppressWarnings("unused") for reporter argument
- Removed unnecessary cast.
AbstractMergeTestBase
- Removed unnecessary compaction
StaticTestEnvironment
- Change logging level for client connections which are too noisy in most cases
TestBloomFilters
- Removed unnecessary config settings
- Modified to use BatchUpdate instead of deprecated startUpdate, etc.
TestScannerAPI
- Modified to use BatchUpdate instead of deprecated startUpdate, etc.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@630394 13f79535-47bb-0310-9956-ffa450edef68
(Recommit. We'd backed it out when it was HADOOP-1398)
This commit includes updating version from 0.1.0-dev to 0.2.0-dev
and an update of the hadoop lib to move it post 0.16.0 branch.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/hbase/trunk@619526 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-2587 Splits blocked by compactions cause region to be offline for duration of compaction.
Fix bug in TestCompaction in which two mini dfs clusters were being started for the same test.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@611681 13f79535-47bb-0310-9956-ffa450edef68
HADOOP-2392, HADOOP-2324:
Chore
- initialChore() now returns boolean
HMaster
- rather than retry in root and meta scanners, return if a scan fails. It will get retried on the next scan. This has two effects: 1) scanners exit more quickly during shutdown and 2) they don't keep retrying to connect to a dead server, allowing them to recover from a server going down more quickly.
- initialScan in root and meta scanners return boolean and do not progress to maintenanceScan until the initial scan completes successfully.
HRegionServer
- speed up region server exit by reordering join's so that we join with threads in the order that we told them to stop
TestTableMapReduce
- remove overrides of heartbeat and thread wake intervals
HADOOP-2396:
HMaster
- move check for null HRegionInfo before first attempt to dereference it.
HADOOP-2397:
- HMaster$BaseScanner.checkAssigned: don't try to split dead server's log if initial startup has completed.
HADOOP-2353:
HMsg
- change toString() to only output the region name rather than calling HRegionInfo.toString()
StaticTestEnvironment
- make logging a bit less verbose
TestHLog
- was writing to local file system and failing on Windows
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@603428 13f79535-47bb-0310-9956-ffa450edef68
There are a lot of changes in this patch. The memcache has been changed from a per/region object to a per/column object, and HLocking has been removed since we do not have to maintain any locks across RPC calls.
This necessitated major changes to HRegion and HStore
Additionally there were many changes required to the unit tests since they tend to exploit some private interfaces that weren't designed to be public. Some of those interfaces changed so the test cases did as well.
This patch is the result of extensive analysis of the multiple threads in HBase that contend for shared resources: updates, reads, scanners, cache flushing, compaction and region splitting.
Many of the tests are timing sensitive, and since we tend to make "dormant" intervals as short as possible to speed up the Hudson build, we may go through several iterations of getting them right before Hudson is happy. This is especially true since two test cases failed on my dual cpu windows machine while running the tests under Ant, but ran fine under Eclipse.
However, now that the tests are passing locally, I believe the changes are doing the right thing, but may require some parameter tweaks.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@596835 13f79535-47bb-0310-9956-ffa450edef68
- 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.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@591880 13f79535-47bb-0310-9956-ffa450edef68
HLog.splitLog was generating incorrect file names, HRegion was generating file names that could be far too long especially for local file systems, HMaster had a race condition in which an old HLog would get split by two threads simultaneously.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@586680 13f79535-47bb-0310-9956-ffa450edef68
Set hbase.root in test/hbase-site.xml; when running a test, the default does not work consistantly.
When a HBase mini cluster is started on top of an existing mini dfs cluster, it should not shut down the mini dfs cluster when the mini HBase cluster is shut down.
TestDFSAbort catches exceptions, prints the stack trace and re-throws the exception, so you can see when the exception happened in the log.
Catch runtime exceptions that were escaping from FSUtils.isFileSystemAvailable, enabling more reliable detection of dfs failure. HRegionServer also now checks to see if it is still accepting client requests.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@580745 13f79535-47bb-0310-9956-ffa450edef68
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.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@574287 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/HBaseTestCase.java
(addContents): Added overrides that allow specifying a timestamp.
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/TestTimestamp.java
Made it so test inherits from HBaseTestCase instead of from HBaseClusterTestCase
so could add in tests that do not use cluster.
(testTimestampScanning): Added test for hadoop-1834 bug.
(testTimestamp): Refactored to remove duplicated code.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStore.java
(getNext): Make it respect the timestamp set on construction.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMemcache.java
Removed eclipse yellow flag warnings around empty parens and
auto-boxing longs.
(getNext): Make it respect the timestamp set on construction.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@572980 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/ConsoleTable.java
Make a PrintStream that outputs utf8. Have all printing use it.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/SelectCommand.java
Fix few places where we make Strings w/o stipulating UTF-8 encoding.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@571317 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/TestTableMapReduce.java
(localTestSingleRegionTable, localTestMultiRegionTable, verify): Added.
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/HBaseTestCase.java
Javadoc for addContents and Loader interface and implementations.
Methods have been made static so accessible w/o subclassing.
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/MultiRegionTable.java
Guts of TestSplit has been moved here so other tests can have
access to a multiregion table.
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/TestSplit.java
Bulk moved to MultiRegionTable utility class. Use this new class
instead.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HTable.java
Added '@deprecated' javadoc.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMaster.java
Was throwing RuntimeException when a msgQueue.put was interrupted
but this is a likely event on shutdown. Log a message instead.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/mapred/TableInputFormat.java
Actually fix for HADOOP-1785... reverse test of row comparison.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@570983 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStore.java
Fix outputing fail message on each compaction though there was none.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStoreFile.java
(rename): Refactor so return only happens on end..
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMaster.java
(assignRegions): Make synchronized. In presence of concurrent visits
by regionservers, both visiting threads could grab same set of regions
for assignment.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@569589 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/HelpContents.java
Add mention of new 'fs' operator.
A src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/FsCommand.java
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/HBaseShell.jj
Added support of new 'fs' operator.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/generated/ParserTokenManager.java
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/generated/ParserConstants.java
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/shell/generated/Parser.java
Generated files. Changes come of mods to HBaseShell.jj
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@569484 13f79535-47bb-0310-9956-ffa450edef68
result
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HConnectionManager.java
Minor fix of a log message.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStore.java
(COMPACTION_DIR, WORKING_COMPACTION): Removed.
(compactdir): Renamed compactionDir.
Removed from constructor our checking if a compaction was left undone.
Instead, just ignore it. When compaction reruns whatever as left on
filesystem will just be cleaned up and we'll rerun the compaction
(Likelihood of a crash mid-compaction in exactly the area where
the compaction was recoverable are low -- more robust just redoing
the compaction from scratch).
(compactHelper): We were deleting HBaseRoot/compaction.tmp dir
after a compaction completed. Usually fine but on a cluster of
more than one machine, if two compactions were near-concurrent, one
machine could remove the compaction working directory while another
was mid-way through its compaction. Result was odd failures
during compaction of result file, during the move of the resulting
compacting file or subsequently trying to open reader on the
resulting compaction file (See HADOOP-1765).
a region fsck tool).
(getFilesToCompact): Added.
(processReadyCompaction): Added. Reorganized compaction so that the
window during which loss-of-data is possible is narrowed and even
then, we log a message with how a restore might be performed manually
(TODO: Add a repair tool).
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStoreFile.java
(rename): More checking around rename that it was successful.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HLog.java
An empty-log gives HLog trouble. Added handling.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMaster.java
Cleanup of debug level logging.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HRegion.java
Minor javadoc and changed a log from info to debug.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@569446 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMaster.java
Removed some empty lines so I can squeeze more code into a screenful.
(assignedRegions): Factored out some code into own methods so
this method is made a bit shorter. Added early returns near
top -- if nothing to assign, etc. -- so less nesting.
Added fix: Instead of iterating over unassignedRegions after
all the loadings have been calculated, instead iterate over
the locally calculated map, regionsToAssign (Otherwise, we
were running over the same territory each time through the
loop and were thus giving out same region multiple times).
(regionsPerServer, assignRegionsToOneServer,
getRegionsToAssign): Added.
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@568404 13f79535-47bb-0310-9956-ffa450edef68
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HStore.java
Use new HColumnDescriptor accessors rather than make direct accesses
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HColumnDescriptor.java
(COMPRESSION_NONE, COMPRESSION_RECORD, COMPRESSION_BLOCK): Removed.
Use enum ordinals instead. Removed mapping between these defines and
enum equivalents. Made data members private and added accessors.
(DEFAULT_IN_MEMORY, DEFAULT_COMPRESSION_TYPE,
DEFAULT_BLOOM_FILTER_DESCRIPTOR, DEFAULT_MAX_VALUE_LENGTH): Added.
M hbase/src/test/org/apache/hadoop/hbase/TestToString.java
Fix because enum strings are upper-case (was expecting lowercase).
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@568275 13f79535-47bb-0310-9956-ffa450edef68
Added handling for legal null value scanning META table and added
logging of unexpected exceptions that arise scanning.
M src/contrib/hbase/src/test/org/apache/hadoop/hbase/TestSplit.java
Refactored to do a staged removal of daughter references.
(compact, recalibrate): Added.
(getSplitParent): Refactored as getSplitParentInfo.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HConnectionManager.java
Added formatting of the find table result string so shorter
(when 30-odd regions fills page with its output).
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HTable.java
Formatting to clean eclipse warnings.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HMaster.java
The split column in a parent meta table entry can be null (Happens
if a daughter split no longer has references -- it removes its
entry from parent). Add handling and clean up around split
management code. Added logging of unexpected exceptions
scanning a region.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/HRegion.java
Added fix for NPE when client asks for scanner but passes
non-existent columns.
M src/contrib/hbase/src/java/org/apache/hadoop/hbase/util/Writables.java
(getHRegionInfo, getHRegionInfoOrNull): Added.:
git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@567308 13f79535-47bb-0310-9956-ffa450edef68
Bryan Duxbury
Jim Kellerman
Michael Stack