dev@hbase.apache.org discussions for July 2013

33	DISCUSS : HFile V3 proposal for tags in 0.96

For the past couple of months, we have been working through various prototypes for supporting inline storage of tags in cells as persisted on disk. Our goals are to support optional use of tags with ...

Ramkrishna vasudevan
Jul 18, 2013 at 5:15 pm
Jul 25, 2013 at 6:09 pm

28	HBase read perfomnance and HBase client

I have been doing quite extensive testing of different read scenarios: 1. blockcache disabled/enabled 2. data is local/remote (no good hdfs locality) and it turned out that that I can not saturate 1 ...

Vladimir Rodionov
Jul 30, 2013 at 6:23 pm
Aug 1, 2013 at 8:25 pm

23	Resolved JIRAs

Hi, Sorry to ask this lame question, but what is our policy of setting a "Resolved" issue to "Closed"? Thanks, Lars

Lars George
Jul 29, 2013 at 1:07 pm
Aug 1, 2013 at 3:31 pm

21	Re: Help with HBaseTestingUtility / MiniDFSCluster

What HBase version are you using for your Closure test ? Thanks

Ted Yu
Jul 13, 2013 at 3:34 am
Jul 15, 2013 at 11:13 pm

12	Data types stage 1 is ready for reivew

Heya devs, I have two 90k patches I'd like to get some more eyes on. The first is the OrderedBytes patch, HBASE-8201 [0]. It is lightly analogous to the existing Bytes.toXXX methods, but implements ...

Nick Dimiduk
Jul 11, 2013 at 7:17 pm
Aug 8, 2013 at 3:37 pm

12	Smarter Region assignment policy?

It seems that current (0.94.6) region assignment on start up policy is not that smart and does not utilize hdfs block locality Are there any open HBase JIRA ticket(s) that addresses the issue? Best ...

Vladimir Rodionov
Jul 22, 2013 at 5:59 pm
Jul 23, 2013 at 5:42 pm

12	MiniHBaseCluster on Mac OSX

I know that sometimes its not straightforward "instantiate and run" exercise. May be somebody has experience of troubleshooting MiniHBaseCluster on Mac OSX (10.7.5): I can not start cluster ...

Vladimir Rodionov
Jul 3, 2013 at 5:54 pm
Jul 13, 2013 at 6:32 pm

9	60000 millis timeout while waiting for channel to be ready for read

hello, i am doing a lot of saves in HBase. like 100,000,000 documents, each 100KB. before i start the program there are almost 18 connections after starting my 2 regions and one master cluster. the ...

Shapoor
Jul 9, 2013 at 2:35 pm
Feb 12, 2014 at 12:44 am

9	MAX_FILESIZE and hbase.hregion.max.filesize are both 10Gb

but all regions keep getting split at 1Gb I have 71 regions and 70GB of data in 'usertable' despite the fact that: table config is: {NAME = 'usertable', DEFERRED_LOG_FLUSH = 'true', MAX_FILESIZE = ...

Vladimir Rodionov
Jul 28, 2013 at 9:03 pm
Jul 29, 2013 at 5:29 pm

9	Couple notes and questions on RegionObserver's

On design: Why is the instance per region if we specify region in every call to RegionObserver anyway( through RegionCoprocessorEnvironment)? The coprocessor instance is attached to every table ...

Vladimir Rodionov
Jul 25, 2013 at 3:32 am
Jul 26, 2013 at 11:46 pm

9	[ANNOUNCE] The 1st hbase 0.94.10 release candidate is available for download

The 1st 0.94.10 RC is available for download at http://people.apache.org/~larsh/hbase-0.94.10-rc0/ Signed with my code signing key: C7CFE328 Like the previous point releases, 0.94.10 is a primarily a ...

Lars hofhansl
Jul 19, 2013 at 9:34 pm
Jul 24, 2013 at 11:14 pm

8	ycsb and hbase 0.95.1 hadoop2

[This might look like a user list question, or a question for another project, but people on the hbase dev list use ycsb to test hbase, and the side effect of my progress on this benefits hbase more ...

Paul Baclace
Jul 29, 2013 at 7:49 am
Aug 19, 2013 at 3:15 am

8	[question about replication] how to apply delta from Master to Slave after crash ?

hi, folks, I am trying to address a recovery scenario after Master crash. In a simple Master - Slave replication setup for t1, and suddenly Master crashes. there will be a small delta of t1 already ...

Demai Ni
Jul 22, 2013 at 11:42 pm
Jul 26, 2013 at 8:32 pm

7	Getting unit tests to pass

Below is a state of hbase 0.95/trunk unit tests (Includes a little taxonomy of test failure type definitions). On Andrew's ec2 build box, 0.95 is passing most of the time ...

Michael Stack
Jul 22, 2013 at 6:50 pm
Aug 1, 2013 at 8:14 pm

7	does append delete all cell versions except the last one?

I am doing some tests of append operation (HTable.append(Append append)) and it seems that if cell being appended has multiple versions , all except the last one get deleted. Is it correct behavior ...

Vladimir Rodionov
Jul 22, 2013 at 11:18 pm
Jul 23, 2013 at 3:31 am

6	Puzzling behaviour with HBase checksums

Hi, We are running hbase with hbase.regionserver.checksum.verify set to true. But we are seeing an equal # of seeks for .meta files on HDFS and data blocks. This is rather puzzling and I dont know if ...

Varun Sharma
Jul 5, 2013 at 9:55 pm
Jul 7, 2013 at 4:38 pm

6	Re: [ANNOUNCE] HBase 0.94.9 is available for download

Thanks Lars. It looks like HBASE-8656 <https://issues.apache.org/jira/browse/HBASE-8656 , though part of the tarball, is not included in 0.94.9 tag. Regards, Aditya...

Aditya
Jul 6, 2013 at 4:12 am
Jul 6, 2013 at 5:04 pm

5	RE: Master aborts on start up - URGENT

There is a parallel thread with a similar issue in user group: http://mail-archives.apache.org/mod_mbox/hbase-user/201307.mbox/%3CEE3F98CB-A4E8-4BFF-8C5F-AC50E164EB0D%40gmail.com%3E Best regards, ...

Vladimir Rodionov
Jul 27, 2013 at 11:25 pm
Jul 28, 2013 at 1:35 am

5	Apache mailing list archives?

Apache's mail archives appear to be down, both http://hbase.apache.org/mail/issues/ and http://hbase.apache.org/mail/dev/return 404. What's the appropriate mechanism for reporting these back to ...

Nick Dimiduk
Jul 23, 2013 at 4:38 pm
Jul 24, 2013 at 8:57 pm

5	Re: removing lock ids from RegionObserver

+1 for 0.96. (Why would an observer want the lockid anyways?) St.Ack

Michael Stack
Jul 6, 2013 at 9:52 pm
Jul 7, 2013 at 4:26 pm

4	Connection reference counting

Hi, I am working on an issue around Thrift 2 (HBASE-7035), and I am testing how this all works a bit. See https://github.com/larsgeorge/hbase-scanner-test for the code, which runs against a local ...

Lars George
Jul 17, 2013 at 8:03 am
Jul 17, 2013 at 5:23 pm

4	checkAndPut with comparators

Hi, I see that in HBASE-3468, we gained the ability to do a checkAndPut with a comparator, but it doesn't look straightforward to use from a client perspective. I'd like to create/submit a patch that ...

Rob Roland
Jul 2, 2013 at 11:12 pm
Jul 3, 2013 at 6:13 pm

4	Identifying which configurations are experimental

Hey devs, I'd like to engage the community in a discussion about how we can better identify configurations that are considered experimental. The current situation is that we usually don't talk about ...

Jean-Daniel Cryans
Jul 1, 2013 at 8:56 pm
Jul 1, 2013 at 11:13 pm

3	Wrong RPS stats?

I am running simple performance test to evaluate maximum read IO we can get from 1 RS. The client tells me 480 RPS, the RS stats (from HBase UI) gives me totally different number ...

Vladimir Rodionov
Jul 29, 2013 at 9:37 pm
Jul 29, 2013 at 9:54 pm

3	log4j-1.2.17.jar missing in the tarball

I couldn't find the log4j jar in the tarball built with mvn -DskipTests clean package assembly:single mvn -version Apache Maven 3.0.5 (r01de14724cdef164cd33c7c8c2fe155faf9602da; 2013-02-19 ...

Jimmy Xiang
Jul 19, 2013 at 5:56 pm
Jul 19, 2013 at 8:27 pm

3	Time to think about 0.94.10

I would like to do an RC early next week. Please let me know of any urgent issue you would like to have include in this month's release. -- Lars

Lars hofhansl
Jul 18, 2013 at 12:48 am
Jul 19, 2013 at 8:09 pm

3	Error with hbase shell when building trunk or 0.95 against hadoop 2

hbase shell LoadError: no such file to load -- hbase require at org/jruby/RubyKernel.java:1062 (root) at /Users/rob/hbase-local/bin/hirb.rb:100 This is probably a configuration issue, I'm trying to ...

Rob Povey
Jul 13, 2013 at 5:43 pm
Jul 15, 2013 at 11:22 pm

3	[jira] [Reopened] (HBASE-8814) Possible NPE in split if a region has empty store files.

[ https://issues.apache.org/jira/browse/HBASE-8814?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] stack reopened HBASE-8814: -------------------------- New test fails on 0.94 ...

stack (JIRA)
Jul 3, 2013 at 9:27 pm
Jul 8, 2013 at 6:39 pm

2	unit test help

Any ideas on how to debug failures where all tests 'pass' but build still reported as failed? IIRC, some of you had some script comparing the set of passed tests against a test that

Michael Stack
Jul 21, 2013 at 2:42 am
Jul 31, 2013 at 11:45 pm

2	[jira] [Created] (HBASE-8947) Thrift 2 : Replace "bool writeToWAL" with "TDurability durability"

Hamed Madani created HBASE-8947: ----------------------------------- Summary: Thrift 2 : Replace "bool writeToWAL" with "TDurability durability" Key: HBASE-8947 URL ...

Hamed Madani (JIRA)
Jul 15, 2013 at 3:18 am
Jul 26, 2013 at 7:35 am

2	NIST Big Data Working Group, Open Source, and Standards

Alan, Arun, Devaraj: I am the industry and standards Co-Chair of NIST's Big Data Working Group Initiative. Participants include representatives of industry, standards groups (SDOs), vendors, and ...

Bob Marcus
Jul 19, 2013 at 5:54 pm
Jul 24, 2013 at 6:53 pm

2	[jira] [Created] (HBASE-9019) Port HBASE-8690: Reduce unnecessary getFileStatus hdfs calls in TTL hfile and hlog cleanners to 0.94

Ted Yu created HBASE-9019: ----------------------------- Summary: Port HBASE-8690: Reduce unnecessary getFileStatus hdfs calls in TTL hfile and hlog cleanners to 0.94 Key: HBASE-9019 URL ...

Ted Yu (JIRA)
Jul 22, 2013 at 9:54 pm
Jul 23, 2013 at 12:16 am

2	hbase pull request: HBASE-8928 Make ChaosMonkey & LoadTest tools extensible...

GitHub user gautam-soni opened a pull request: https://github.com/apache/hbase/pull/4 HBASE-8928 Make ChaosMonkey & LoadTest tools extensible, to allow addition of more actions and policies. This ...

Gautam-soni
Jul 11, 2013 at 2:46 pm
Jul 15, 2013 at 3:14 pm

2	[jira] [Created] (HBASE-8941) TestAccessController.testGlobalPermissionList failed with IndexOutOfBoundsException

Jimmy Xiang created HBASE-8941: ---------------------------------- Summary: TestAccessController.testGlobalPermissionList failed with IndexOutOfBoundsException Key: HBASE-8941 URL ...

Jimmy Xiang (JIRA)
Jul 12, 2013 at 8:37 pm
Jul 12, 2013 at 11:27 pm

2	Introduction to tracing

Hi, Sorry if this seems like a noobish question, but I'd like to get some insight into tracing functionality in HBase and how it works. Can anyone point me to some links explaining it from the ground ...

Ajay Bhat
Jul 11, 2013 at 3:16 pm
Jul 11, 2013 at 3:55 pm

2	Extend the Hadoop QA bot to handle dependencies

Hi, I don't know much (basically nothing) about how the Hadoop QA bot is implemented but I have a suggestion for how it could be improved and would like some opinions and maybe pointers. Maven and ...

Lars Francke
Jul 11, 2013 at 9:29 am
Jul 11, 2013 at 9:56 am

2	[jira] [Created] (HBASE-8918) Removes redundant identifiers from interfaces

Lars Francke created HBASE-8918: ----------------------------------- Summary: Removes redundant identifiers from interfaces Key: HBASE-8918 URL: https://issues.apache.org/jira/browse/HBASE-8918 ...

Lars Francke (JIRA)
Jul 10, 2013 at 9:41 am
Jul 11, 2013 at 7:05 am

2	HBASE-8678: Someone can give it a look?

Thanks ;) JM

Jean-Marc Spaggiari
Jul 8, 2013 at 9:19 pm
Jul 9, 2013 at 12:35 pm

2	change of jetty version (from 6 to 9) in hadoop, HADOOP-9650

HBase dev, You may want to track this one. thx ---------- Forwarded message ---------- From: Alejandro Abdelnur <<span class="m_body_email_addr" title="17d6ea6e43b1550b2d85b342cdffece2" ...

Alejandro Abdelnur
Jul 8, 2013 at 9:11 pm
Jul 9, 2013 at 12:31 am

2	Questions regarding "Fwd: [jira] [Commented] (HBASE-8819) Port HBASE-5428 to Thrift 2"

Hi! I am wondering how to figure what two extra warning the patch added. I am rusty on Jenkins, I tried to click on the links below, i.e. the testReport and hbase-server ones, but cannot find those ...

Lars George
Jul 8, 2013 at 5:44 pm
Jul 8, 2013 at 6:09 pm

2	Build Failed

Hi, Can someone help me understand what happened here: https://builds.apache.org/job/HBase-TRUNK-on-Hadoop-2.0.0/601/ ? My patch is part of it, I am sure this is not the cause, and since I am ...

Lars George
Jul 7, 2013 at 2:18 pm
Jul 7, 2013 at 2:40 pm

2	Re: Issues with delete markers

I mean version tracking with delete markers...

Varun Sharma
Jul 1, 2013 at 3:18 pm
Jul 1, 2013 at 3:32 pm

1	[jira] [Created] (HBASE-9080) Retain assignment should be used when re-enabling table(s)

Ted Yu created HBASE-9080: ----------------------------- Summary: Retain assignment should be used when re-enabling table(s) Key: HBASE-9080 URL: https://issues.apache.org/jira/browse/HBASE-9080 ...

Ted Yu (JIRA)
Jul 30, 2013 at 1:12 am
Jul 30, 2013 at 8:29 pm

1	[jira] [Created] (HBASE-9070) Properly clean up snapshots in tearDown() method of snapshot related tests

Ted Yu created HBASE-9070: ----------------------------- Summary: Properly clean up snapshots in tearDown() method of snapshot related tests Key: HBASE-9070 URL ...

Ted Yu (JIRA)
Jul 29, 2013 at 2:37 am
Jul 30, 2013 at 7:25 pm

1	HRegion heapSize out of date

While working on HBASE-8877 I noticed that HRegion.heapSize was missing many things. I fixed FIXED_OVERHEAD as part of the issue, but didn't try to fix about a dozen missing fields from DEEP_OVERHEAD ...

Dave Latham
Jul 29, 2013 at 10:34 pm
Jul 29, 2013 at 10:36 pm

1	[jira] [Created] (HBASE-9032) Result.getBytes() returns null if backed by KeyValue array

Aditya Kishore created HBASE-9032: ------------------------------------- Summary: Result.getBytes() returns null if backed by KeyValue array Key: HBASE-9032 URL ...

Aditya Kishore (JIRA)
Jul 23, 2013 at 11:26 pm
Jul 29, 2013 at 6:55 pm

1	[jira] [Created] (HBASE-9073) Up retries on TestSnapshotFromMaster; retries only once

stack created HBASE-9073: ---------------------------- Summary: Up retries on TestSnapshotFromMaster; retries only once Key: HBASE-9073 URL: https://issues.apache.org/jira/browse/HBASE-9073 Project ...

stack (JIRA)
Jul 29, 2013 at 6:01 pm
Jul 29, 2013 at 6:09 pm

1	[jira] [Created] (HBASE-9071) Disable TestHCM#testClusterStatus because fails in IDEs, etc.

stack created HBASE-9071: ---------------------------- Summary: Disable TestHCM#testClusterStatus because fails in IDEs, etc. Key: HBASE-9071 URL: https://issues.apache.org/jira/browse/HBASE-9071 ...

stack (JIRA)
Jul 29, 2013 at 3:19 pm
Jul 29, 2013 at 3:21 pm

1	[jira] [Created] (HBASE-9067) Temporarily disable a few tests in TestReplicationTrackerZKImpl

stack created HBASE-9067: ---------------------------- Summary: Temporarily disable a few tests in TestReplicationTrackerZKImpl Key: HBASE-9067 URL: https://issues.apache.org/jira/browse/HBASE-9067 ...

stack (JIRA)
Jul 28, 2013 at 5:31 am
Jul 28, 2013 at 5:35 am

1	[jira] [Created] (HBASE-8950) Please Make HbaseTestingUtility Import without Dynamic Class Path Mods

David Williams created HBASE-8950: ------------------------------------- Summary: Please Make HbaseTestingUtility Import without Dynamic Class Path Mods Key: HBASE-8950 URL ...

David Williams (JIRA)
Jul 15, 2013 at 4:45 pm
Jul 28, 2013 at 4:59 am

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