dev@hbase.apache.org discussions for August 2010

37	Review Request: HBASE-50: Snapshot of table

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/467/ ...

Chongxin Li
Aug 1, 2010 at 10:52 am
Sep 6, 2010 at 11:35 am

14	Review Request: HBASE-2915 Deadlock between HRegion.ICV and HRegion.close

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/691/ ...

Jean-Daniel Cryans
Aug 19, 2010 at 10:03 pm
Aug 23, 2010 at 4:58 pm

12	Data loss due to region server failure

Hi Group, I am checking HBase/HDFS fail over. I am inserting 1M records from my HBase client application. I am clubbing my Put operation such that 10 records get added into the List<Put and then I ...

Gagandeep Singh
Aug 26, 2010 at 12:36 pm
Sep 3, 2010 at 8:23 pm

11	Review Request:

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/484/ ...

Jonathan Gray
Aug 3, 2010 at 12:03 pm
Aug 12, 2010 at 7:51 am

10	hbase vs bigtable

bigtable was written for 1 core machines, with ~ 100 regions per box. Thanks to CMS we generally can't run on < 4 cores, and at this point 16 core machines (with HTT) is becoming pretty standard. The ...

Ryan Rawson
Aug 28, 2010 at 8:07 pm
Aug 29, 2010 at 12:22 am

9	Heads-up: big commit in next day or so; "HBASE-2692 Master rewrite and cleanup for 0.90"

I just posted the patch to https://review.cloudera.org/r/750/. Its a little on the large size (1.5MB. Sorry about that). The bulk of the patch is by Karthik Ranganathan and Jon Gray. They've been ...

Stack
Aug 31, 2010 at 7:44 am
Sep 1, 2010 at 8:44 am

8	0.90 release date estimate

Hi, I'm trying to get a feeling for 0.90 release timing, so I looked at unresolved JIRA issues marked for 0.90: ...

Otis Gospodnetic
Aug 20, 2010 at 11:43 pm
Aug 24, 2010 at 7:56 am

8	Build failed in Hudson: HBase-TRUNK #1425

See <http://hudson.zones.apache.org/hudson/job/HBase-TRUNK/1425/changes Changes: [stack] HBASE-1660: script to handle rolling restarts ------------------------------------------ [...truncated 804 ...

Apache Hudson Server
Aug 13, 2010 at 6:08 am
Aug 19, 2010 at 1:03 am

8	hprof from RS which encountered OOME

Hi, See attached screenshots.

Ted Yu
Aug 11, 2010 at 7:48 pm
Aug 17, 2010 at 9:42 am

6	[VOTE] Release 'development release' HBase 0.89.2010830 rc1?

It's time for another DR since the new master code is about to be merged in and we have a few fixes and improvements that'd beneficiate from more exposure. I branched from trunk this morning and ...

Jean-Daniel Cryans
Aug 30, 2010 at 11:39 pm
Sep 7, 2010 at 6:12 pm

6	Re: Review Request: Inexpensive reseek operations (1517) and filter based scanning (2904)

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/574/#review794 ...

Stack
Aug 10, 2010 at 4:04 am
Aug 13, 2010 at 7:41 pm

5	Review Request:

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/747/ ...

Karthick Sankarachary
Aug 30, 2010 at 9:38 pm
Oct 19, 2010 at 4:39 pm

5	Build failed in Hudson: HBase-TRUNK #1439

See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1439/changes Changes: [rawson] HBASE-1845 MultiGet, MultiDelete, and MultiPut - batched to the appropriate region servers (Marc Limotte via Ryan) ...

Apache Hudson Server
Aug 31, 2010 at 9:49 pm
Sep 1, 2010 at 8:01 pm

5	Can master detect sudden region server death?

For our system it is critical that there be no data loss and fast recovery time if any node goes down. We've recently updated the hbase-transactional-tableindexed extension to work with the latest ...

James Kennedy
Aug 13, 2010 at 11:00 pm
Aug 17, 2010 at 9:36 pm

4	Review Request: HLog cleanup is done under the updateLock, major slowdown

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/694/ ...

Jean-Daniel Cryans
Aug 20, 2010 at 2:46 am
Aug 20, 2010 at 11:24 pm

4	Build failed in Hudson: HBase-TRUNK #1420

See <http://hudson.zones.apache.org/hudson/job/HBase-TRUNK/1420/changes Changes: [stack] HBASE-2901 HBASE-2461 broke build ------------------------------------------ [...truncated 803 lines...] A ...

Apache Hudson Server
Aug 5, 2010 at 6:14 am
Aug 11, 2010 at 5:31 pm

4	Why does FilterList inherit from Filter and not from FilterBase? Any particular reason?

See subject. If not, ok if we fix this? Thanks, St.Ack

Stack
Aug 11, 2010 at 4:45 am
Aug 11, 2010 at 6:15 am

3	Review Request: RegionServer should refuse to be assigned a region that use LZO when LZO isn't available

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/719/ ...

Jean-Daniel Cryans
Aug 25, 2010 at 7:50 pm
Oct 8, 2010 at 9:44 pm

3	Review Request: HBASE-2941 - multithreaded read for server rpc

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/752/ ...

Ryan Rawson
Aug 31, 2010 at 10:11 pm
Sep 14, 2010 at 9:20 pm

3	Question HFile Insert Key or Update Key

hey guys, I am studying the HFiles now and have a couple of questions. The keys in the HFiles are sorted. So when a key is inserted into a data block which is full and the key is smaller than the ...

Zhixuan zhu
Aug 29, 2010 at 3:32 am
Aug 29, 2010 at 11:17 am

3	HBase: project ideas

Dear All: I have been looking around HBase (running/debugging it, etc) for a couple of weeks now, and it is fascinating. I am in search of a good project for my grad studies, focussing around HBase, ...

Himanshu Vashishtha
Aug 19, 2010 at 9:48 am
Aug 19, 2010 at 7:27 pm

3	irresponsive region server

Hi, Using 0.20.6 (with HBASE-2473) we encountered a situation where Regionserver process was running but master didn't recognize it. Here is the bottom of region server log: ...

Ted Yu
Aug 11, 2010 at 5:21 pm
Aug 11, 2010 at 5:35 pm

3	Is bulk read operation is possible

Is there any API by which I can perform bulk read operation like Table.get(List<rowId ) Is there any other way of doing it? Thanks, Gagan

Gagandeep Singh
Aug 9, 2010 at 6:23 am
Aug 9, 2010 at 7:02 pm

2	Finding on HBase-Hypertable comparison

like to share my findings. Though I am not including much details here here but I will soon share it with the community. I found following shortcomings in HBase 1. Slower or equal in performance when ...

Gagandeep Singh
Aug 26, 2010 at 7:00 pm
Aug 29, 2010 at 1:00 am

2	Build failed in Hudson: HBase-TRUNK #1435

See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1435/changes Changes: [stack] HBASE-2931 Do not throw RuntimeExceptions in RPC/HbaseObjectWritable code, ensure we log and rethrow as IOE ...

Apache Hudson Server
Aug 23, 2010 at 4:30 pm
Aug 25, 2010 at 5:23 am

2	How row delete works

Hi Can somebody please shed some light on the internal working of the HBase delete operation. So when I perform a delete operation what exactly happens underneath the code. Is my data removed ...

Gagandeep Singh
Aug 20, 2010 at 9:51 am
Aug 20, 2010 at 9:18 pm

2	Build failed in Hudson: HBase-TRUNK #1417

See <http://hudson.zones.apache.org/hudson/job/HBase-TRUNK/1417/changes Changes: [stack] HBASE-2461 Split doesn't handle IOExceptions when creating new region reference files ...

Apache Hudson Server
Aug 4, 2010 at 12:51 am
Aug 4, 2010 at 8:59 am

1	Re: Review Request: HBASE-2312: Rename HLog Dir when Splitting

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/396/#review752 ...

Stack
Aug 8, 2010 at 4:51 pm
Nov 1, 2010 at 10:57 pm

1	intermittent diff (?)- testIncrementColumnValue_BumpSnapshot

Hi, Noticed this in our test run once. Didn't repro on a rerun though. But wanted to share with the list in case anyone was familiar with the test. ...

Kannan Muthukkaruppan
Aug 27, 2010 at 12:32 pm
Aug 27, 2010 at 5:59 pm

1	Re: Unable to perform list/create after startup

We use HBASE 0.20.6 with HBASE-2473 I think we may have hit HBASE-2599 I am looking at 2599-0.20.txt<https://issues.apache.org/jira/secure/attachment/12445536/2599-0.20.txt which you attached to the ...

Ted Yu
Aug 18, 2010 at 10:12 pm
Aug 18, 2010 at 11:25 pm

1	Re: Review Request: Capping the number of regions

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/334/#review678 ...

Stack
Aug 5, 2010 at 4:44 am
Aug 8, 2010 at 3:55 pm

1	about HBASE-2362

Hello, My name is Joshua Ho, currently working as a software engineer at Trend Micro Inc. I would like to see if I can take this task after got assigned. Thanks a lot. Joshua

Joshua Chia-Hsuan Ho
Aug 4, 2010 at 3:58 am
Aug 4, 2010 at 4:48 am

1	HBASE-2502

Hi, It has been very quiet on: https://issues.apache.org/jira/browse/HBASE-2502 I want to get your opinion on how this is handled in your production environment. Thanks

Ted Yu
Aug 3, 2010 at 9:46 pm
Aug 3, 2010 at 10:56 pm

1	Review Request: HBASE-2461 Split doesn't handle IOExceptions when creating new region reference files

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/474/ ...

Stack
Aug 3, 2010 at 1:33 am
Aug 3, 2010 at 8:11 pm

1	Review Request: [REST] RowResultGenerator should handle NoSuchColumnFamilyException

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/482/ ...

Andrew Purtell
Aug 3, 2010 at 8:42 am
Aug 3, 2010 at 2:42 pm

0	revision 991354

[email protected] ~/src/Hadoop/hbase-trunk $ svn rm -m"deleting 0.90_coprocessors branch for now, nothing committed here, will rebranch after master rewrite goes in" ...

Andrew Purtell
Aug 31, 2010 at 9:58 pm
Aug 31, 2010 at 9:58 pm

0	Review Request: hbase-2692 Master rewrite and cleanup for 0.90

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/750/ ...

Stack
Aug 31, 2010 at 7:03 am
Aug 31, 2010 at 7:03 am

0	Heads up! New locking in HRegion

Hackers, I just committed HBASE-2915 which is a rework of the locking story inside HRegion that fixes a couple of deadlocks. Some issues may remain, so have your jstacks ready in case some weirdness ...

Jean-Daniel Cryans
Aug 23, 2010 at 11:17 pm
Aug 23, 2010 at 11:17 pm

0	Build failed in Hudson: HBase-TRUNK #1433

See <https://hudson.apache.org/hudson/job/HBase-TRUNK/1433/changes Changes: [jdcryans] HBASE-2924 TestLogRolling doesn't use the right HLog half the time ------------------------------------------ ...

Apache Hudson Server
Aug 19, 2010 at 11:02 pm
Aug 19, 2010 at 11:02 pm

0	Re: Review Request: Fault in logic in BinaryPrefixComparator leads to ArrayIndexOutOfBoundsException

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/686/#review949 ...

Jonathan Gray
Aug 18, 2010 at 10:27 pm
Aug 18, 2010 at 10:27 pm

0	HBaseAdmin.disableTable() hung

I found that only one region from NIGHTLYSTAGINGGRID-PACKAGESUMMARY-1282074317479 (currently disabled) remained in the table as of now. In master server log, I can see 3 actions on any of the other ...

Ted Yu
Aug 18, 2010 at 4:40 pm
Aug 18, 2010 at 4:40 pm

0	Re: Review Request: HBASE-1660: script to handle rolling restarts

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/632/#review894 ...

Stack
Aug 13, 2010 at 4:09 am
Aug 13, 2010 at 4:09 am

0	Re: Review Request: HBASE-2870: Add Backup CLI Option to HMaster

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/592/#review793 ...

Stack
Aug 10, 2010 at 3:33 am
Aug 10, 2010 at 3:33 am

0	question on HBase-2473

For a table where row keys are variable in sizes, how should I specify startKey and endKey ? E.g., I use 32 byte startKey and endKey, but the row key may be as long as 64 bytes. What happens when 64 ...

Ted Yu
Aug 5, 2010 at 4:57 pm
Aug 5, 2010 at 4:57 pm

0	Re: Review Request: HBASE-2823: Entire Row Deletes not stored in Row+Col Bloom

----------------------------------------------------------- This is an automatically generated e-mail. To reply, visit: http://review.cloudera.org/r/426/ ...

Alexander Georgiev
Aug 3, 2010 at 8:28 pm
Aug 3, 2010 at 8:28 pm

group	dev @
categories	hbase, hadoop
discussions	45
posts	236
users	33
website	hbase.apache.org

summaries	on	Hotkey: s
users list	on	Hotkey: d
user style	avatars	Hotkey: a

HBase > dev > August 2010

Search Discussions

45 discussions - 236 posts

33 users for August 2010

Content

People

Support

Translate