common-dev@hadoop.apache.org discussions for August 2012

28	Build failed in Jenkins: Hadoop-Common-trunk #490

See <https://builds.apache.org/job/Hadoop-Common-trunk/490/changes Changes: [atm] HDFS-3738. TestDFSClientRetries#testFailuresArePerOperation sets incorrect timeout config. Contributed by Aaron T ...

Apache Jenkins Server
Aug 1, 2012 at 9:20 am
Aug 30, 2012 at 9:14 am

5	Checksum Error during Reduce Phase hadoop-1.0.2

Hi, I am running a Terasort with a cluster of 8 nodes.The map phase completes but when the reduce phase is around 68-70% I get this following error. * 12/08/10 11:02:36 INFO mapred.JobClient: Task Id ...

Pavan Kulkarni
Aug 10, 2012 at 6:14 pm
Aug 17, 2012 at 4:16 am

3	Does anyone do related work on the log of hadoop?

Hi, all I want to do some study on the log of hadoop. I intend to konw how hadoop record the IO in the logs. Does anyone do related work and give some suggestions? Thanks, May

Li Shengmei
Aug 24, 2012 at 3:45 am
Aug 30, 2012 at 11:44 am

3	Number of reducers

Hi all, I just want to know that, based on what factor map reduce framework decides number of reducers to launch for a job By default only one reducer will be launched for a given job is this right? ...

Abhishek
Aug 28, 2012 at 3:03 am
Aug 28, 2012 at 3:29 pm

3	How to get TaskId from ContainerId or ApplicationId or Request in Hadoop 0.23??

In ResourceManager, is there any way to findout if the assigned container is going to execute a mapping task or a reduce task? I can access objects Container, Application and Request in ...

Shekhar Gupta
Aug 23, 2012 at 1:23 am
Aug 23, 2012 at 7:05 pm

3	hadoop qa bot, how does it work?

I'm in the process of setting up test-patch for Oozie. Got the initial test-patch, got the jenkins job (parameterized and triggered remotely via URL) My last piece of the puzzle is getting JIRA to ...

Alejandro Abdelnur
Aug 17, 2012 at 6:08 am
Aug 17, 2012 at 2:35 pm

3	S3 FS tests broken?

Anyone know why these tests have started failing? It happens for me locally and it just happened in Jenkins: https://builds.apache.org/job/PreCommit-HADOOP-Build/1288/ I don't see any obvious changes ...

Trevor
Aug 14, 2012 at 1:05 am
Aug 14, 2012 at 6:38 pm

3	Re: Cannot create a new Jira issue for MapReduce

Yes. I saw JIRA is in maintenance now and the schedule is as below: Host Name Service Entry Time Author Comment Start Time End Time Type Duration Downtime ID Trigger ID Actions ull.zones.apache.org ...

Jun Ping Du
Aug 12, 2012 at 2:15 am
Aug 13, 2012 at 4:18 am

3	Setting number of parallel Reducers and Mappers for optimal performance

Hi, I was trying to optimize Hadoop-1.0.2 performance by setting *mapred.tasktracker.map.tasks.maximum ,**mapred.tasktracker.reduce.tasks.maximum* such that the entire memory is utilized. The tuning ...

Pavan Kulkarni
Aug 10, 2012 at 8:25 pm
Aug 12, 2012 at 4:37 am

3	Contributing to the Hadoop project

Hello all, I would like to know how I can assist with the Hadoop project? It doesn't matter in what capacity. I just want to help out with whatever is needed. Thanks, Clay McDonald

Clay McDonald
Aug 8, 2012 at 5:23 pm
Aug 9, 2012 at 12:51 am

3	difference between mapred-site.xml and conf/masters

Hi, I am trying to setup a hadoop cluster and I was wondering what is difference in specifying the Jobtracker IP in *mapred.job.tracker* in * mapred-site.xml* and noting the same IP in *conf/masters* ...

Momina Khan
Aug 7, 2012 at 12:33 am
Aug 7, 2012 at 1:28 am

2	1.1.X release

Hi, Hi, quick question - Is there a way to download 1.1.X - current beta version, 1.1 release - none of the mirrors seem to have it. Is building it the only way to get it? Thanks, Slavik

Slavik Krassovsky
Aug 18, 2012 at 6:13 pm
Aug 22, 2012 at 6:23 pm

2	org.apache.hadoop.ipc.TestRPCCompatibility

Hi, I am running test against my compiled version of trunk and it fails in org.apache.hadoop.ipc.TestRPCCompatibility. Is it expected? Vlad

Vladimir Rozov
Aug 19, 2012 at 12:37 am
Aug 21, 2012 at 12:12 am

2	serializable writables - HADOOP-8619

I really needs writables to be serializable for using cache on top of writables. https://issues.apache.org/jira/browse/HADOOP-8619 can someone review this ticket and close it (as fixed or wont fix), ...

Radim Kolar
Aug 9, 2012 at 4:07 pm
Aug 9, 2012 at 4:42 pm

2	adding bin and net categories to JIRA/HADOOP

There aren't bin and net categories in JIRA, yet often bugs go against the code there? Should I add them?

Steve Loughran
Aug 6, 2012 at 6:35 pm
Aug 6, 2012 at 9:06 pm

2	Where can I find old Hadoop Common Release Binaries?

Dears, I am part of a multi institutional group that is doing some data analysis on different open source projects and we selected Hadoop Commons to be part of the data set. I would very much ...

Carlos Andrade
Aug 5, 2012 at 3:02 am
Aug 5, 2012 at 4:53 am

2	More descriptive patch application failed from preCommit build system

can be auto build script changed a bit to send output from patch to stdout instead of eating it? i need idea why patch failed to apply ...

Radim Kolar
Aug 3, 2012 at 11:31 am
Aug 3, 2012 at 1:24 pm

1	[jira] [Created] (HADOOP-8738) junit JAR is showing up in the distro

Alejandro Abdelnur created HADOOP-8738: ------------------------------------------ Summary: junit JAR is showing up in the distro Key: HADOOP-8738 URL ...

Alejandro Abdelnur (JIRA)
Aug 27, 2012 at 11:48 pm
Oct 1, 2012 at 10:47 pm

1	[jira] [Created] (HADOOP-8734) LocalJobRunner does not support private distributed cache

Ivan Mitic created HADOOP-8734: ---------------------------------- Summary: LocalJobRunner does not support private distributed cache Key: HADOOP-8734 URL ...

Ivan Mitic (JIRA)
Aug 27, 2012 at 6:37 pm
Sep 14, 2012 at 6:28 pm

1	[jira] [Created] (HADOOP-8662) remove separate pages for Common, HDFS & MR projects

Doug Cutting created HADOOP-8662: ------------------------------------ Summary: remove separate pages for Common, HDFS & MR projects Key: HADOOP-8662 URL ...

Doug Cutting (JIRA)
Aug 8, 2012 at 7:51 pm
Sep 10, 2012 at 7:02 pm

1	[jira] [Created] (HADOOP-8745) Incorrect version numbers in hadoop-core POM

Matthias Friedrich created HADOOP-8745: ------------------------------------------ Summary: Incorrect version numbers in hadoop-core POM Key: HADOOP-8745 URL ...

Matthias Friedrich (JIRA)
Aug 29, 2012 at 4:40 pm
Sep 7, 2012 at 7:46 pm

1	[jira] [Created] (HADOOP-8750) Configuration.getClasses never returns default value

Bo Wang created HADOOP-8750: ------------------------------- Summary: Configuration.getClasses never returns default value Key: HADOOP-8750 URL: https://issues.apache.org/jira/browse/HADOOP-8750 ...

Bo Wang (JIRA)
Aug 30, 2012 at 11:39 pm
Aug 31, 2012 at 12:33 am

1	[jira] [Created] (HADOOP-8732) Address intermittent test failures on Windows

Ivan Mitic created HADOOP-8732: ---------------------------------- Summary: Address intermittent test failures on Windows Key: HADOOP-8732 URL: https://issues.apache.org/jira/browse/HADOOP-8732 ...

Ivan Mitic (JIRA)
Aug 27, 2012 at 5:40 pm
Aug 30, 2012 at 2:33 am

1	Review Request for HADOOP-8476 and HADOOP-8160

Hi, Please some one review patches for https://issues.apache.org/jira/browse/HADOOP-8476 https://issues.apache.org/jira/browse/HADOOP-8160 Thanks in advance. Regards, Vinay

Vinayakumar B
Aug 25, 2012 at 9:21 am
Aug 28, 2012 at 2:16 pm

1	[jira] [Created] (HADOOP-8735) Missing support for dfs.umaskmode

Jason Lowe created HADOOP-8735: ---------------------------------- Summary: Missing support for dfs.umaskmode Key: HADOOP-8735 URL: https://issues.apache.org/jira/browse/HADOOP-8735 Project: Hadoop ...

Jason Lowe (JIRA)
Aug 27, 2012 at 7:57 pm
Aug 27, 2012 at 9:59 pm

1	RE: hadoop native libs 32 and 64 bit

(moving to common-dev) Thanks Harsh, So what's the final outcome of these changes? Do we get both 32 and 64 bit libraries in the release tarball? Will they be underneath an arch dir, or directly ...

Steven Willis
Aug 27, 2012 at 6:11 pm
Aug 27, 2012 at 6:36 pm

1	New to Hadoop

Hello, I want to contribute to the apache hadoop project. I am absolutely new to Hadoop. Can you guys please guide me which is the best place to start for hadoop and what are the prerequisites ...

Subodhini
Aug 23, 2012 at 10:28 pm
Aug 24, 2012 at 3:27 am

1	I want to revise the source codes, which version is proper?

Hi, all I want to do some experiments with hadoop. I may revise the source codes of hadoop. Which version is stable for my work? Thanks, May

Li Shengmei
Aug 23, 2012 at 8:57 am
Aug 23, 2012 at 5:24 pm

1	org.apache.hadoop.util.TestShell

I see intermittent failures in org.apache.hadoop.util.TestShell. By looking closely at the test, it fails with java.io.FileNotFoundException as “test.build.data” directory is deleted by a prior test ...

Vladimir Rozov
Aug 19, 2012 at 8:14 pm
Aug 22, 2012 at 3:12 pm

1	[jira] [Created] (HADOOP-8715) Pipes cannot use Hbase as input

Håvard Wahl Kongsgård created HADOOP-8715: --------------------------------------------- Summary: Pipes cannot use Hbase as input Key: HADOOP-8715 URL ...

Håvard Wahl Kongsgård (JIRA)
Aug 21, 2012 at 7:00 am
Aug 22, 2012 at 11:37 am

1	[jira] [Created] (HADOOP-8718) org.apache.hadoop.fs.viewfs.InodeTree.createLink(...) may throw java.lang.ArrayIndexOutOfBoundsException

linwukang created HADOOP-8718: --------------------------------- Summary: org.apache.hadoop.fs.viewfs.InodeTree.createLink(...) may throw java.lang.ArrayIndexOutOfBoundsException Key: HADOOP-8718 ...

linwukang (JIRA)
Aug 22, 2012 at 3:08 am
Aug 22, 2012 at 7:05 am

1	HDFS Protocol Documentation

Does any documentation exist for interacting with a Hadoop cluster from a native environment as opposed to JNI? Preferably protocol documentation.

Hans Uhlig
Aug 18, 2012 at 8:15 pm
Aug 18, 2012 at 10:04 pm

1	[jira] [Created] (HADOOP-8656) backport forced daemon shutdown of HADOOP-8353 into branch-1

Steve Loughran created HADOOP-8656: -------------------------------------- Summary: backport forced daemon shutdown of HADOOP-8353 into branch-1 Key: HADOOP-8656 URL ...

Steve Loughran (JIRA)
Aug 6, 2012 at 6:38 pm
Aug 14, 2012 at 12:05 am

1	[jira] [Created] (HADOOP-8659) Native libraries must build with soft-float ABI for Oracle JVM

Trevor Robinson created HADOOP-8659: --------------------------------------- Summary: Native libraries must build with soft-float ABI for Oracle JVM Key: HADOOP-8659 URL ...

Trevor Robinson (JIRA)
Aug 7, 2012 at 8:42 pm
Aug 13, 2012 at 5:08 pm

1	[jira] [Created] (HADOOP-8688) Hadoop in Pseudo-Distributed mode on Mac OS X 10.8

Subho Banerjee created HADOOP-8688: -------------------------------------- Summary: Hadoop in Pseudo-Distributed mode on Mac OS X 10.8 Key: HADOOP-8688 URL ...

Subho Banerjee (JIRA)
Aug 13, 2012 at 3:44 am
Aug 13, 2012 at 5:00 am

1	Hadoop cluster/monitoring

Hi, I'm beginner in Hadoop concepts. I have few basic questions: 1) looking for APIs to retrieve the capacity of the cluster. so that i can write a script to when to add a new slave node to the ...

Nagaraju Bingi
Aug 8, 2012 at 6:44 pm
Aug 12, 2012 at 2:19 pm

1	Failed reduce job in some node

Summary: Failed reduce job Hadoop Versions: 1.0.3 Environment: hadoop-1.0.3 JDK_1.6.0_24 Ubuntu-11.04 Description: when I try to run page rank algorithm in python with three nodes cluster using ...

Owen Duan
Aug 9, 2012 at 12:53 pm
Aug 12, 2012 at 1:28 pm

1	Adding hadoop usage

I would like to add our site rodacino <http://www.rodacino.gr We use hadoop for crawling news sites and log analysis. We also use Apache Cassandra as our back end and Apache Lucene for searching ...

Aggelos Dimitratos
Aug 11, 2012 at 6:34 pm
Aug 11, 2012 at 10:41 pm

1	fs.local.block.size vs file.blocksize

Hi guys and gals, I originally posted a version of this question on the user list on a few days ago to no response, so I thought perhaps it delved a bit too far into the nitty-gritty to warrant one ...

Ellis H. Wilson III
Aug 11, 2012 at 2:56 pm
Aug 11, 2012 at 10:29 pm

1	[jira] [Created] (HADOOP-8663) UnresolvedAddressException while connect causes NPE

John George created HADOOP-8663: ----------------------------------- Summary: UnresolvedAddressException while connect causes NPE Key: HADOOP-8663 URL ...

John George (JIRA)
Aug 8, 2012 at 10:15 pm
Aug 9, 2012 at 4:19 pm

1	[jira] [Created] (HADOOP-8652) Change website to reflect new [email protected] mailing list

Arun C Murthy created HADOOP-8652: ------------------------------------- Summary: Change website to reflect new <span class="m_body_email_addr" title="858a0c8e479a78c1038b7355244ec07c" ...

Arun C Murthy (JIRA)
Aug 5, 2012 at 4:07 am
Aug 7, 2012 at 3:25 am

1	[jira] [Created] (HADOOP-8651) Error reading task output Server returned HTTP response code: 400 for URL: http://hadoop03:8080/tasklog?plaintext=true&attemptid=attempt_1344047400780_0002_m_000000_0&filter=stdout

jiafeng.zhang created HADOOP-8651: ------------------------------------- Summary: Error reading task output Server returned HTTP response code: 400 for URL ...

jiafeng.zhang (JIRA)
Aug 4, 2012 at 3:23 am
Aug 4, 2012 at 3:38 am

1	[jira] [Created] (HADOOP-8641) handleConnectionFailure(..) in Client.java should properly handle interrupted exception

suja s created HADOOP-8641: ------------------------------ Summary: handleConnectionFailure(..) in Client.java should properly handle interrupted exception Key: HADOOP-8641 URL ...

suja s (JIRA)
Aug 2, 2012 at 2:17 pm
Aug 2, 2012 at 11:21 pm

1	[jira] [Created] (HADOOP-8638) TestUlimit fails locally (on some machines)

Karthik Kambatla created HADOOP-8638: ---------------------------------------- Summary: TestUlimit fails locally (on some machines) Key: HADOOP-8638 URL ...

Karthik Kambatla (JIRA)
Aug 1, 2012 at 12:21 am
Aug 1, 2012 at 7:54 pm

0	[jira] [Created] (HADOOP-8749) HADOOP-8031 changed the way in which relative xincludes are handled in Configuration.

Ahmed Radwan created HADOOP-8749: ------------------------------------ Summary: HADOOP-8031 changed the way in which relative xincludes are handled in Configuration. Key: HADOOP-8749 URL ...

Ahmed Radwan (JIRA)
Aug 30, 2012 at 6:57 pm
Aug 30, 2012 at 6:57 pm

0	[jira] [Created] (HADOOP-8748) Move dfsclient retry to a util class

Arun C Murthy created HADOOP-8748: ------------------------------------- Summary: Move dfsclient retry to a util class Key: HADOOP-8748 URL: https://issues.apache.org/jira/browse/HADOOP-8748 ...

Arun C Murthy (JIRA)
Aug 30, 2012 at 12:36 pm
Aug 30, 2012 at 12:36 pm

0	[jira] [Created] (HADOOP-8747) Syntax error on cmake version 2.6 patch 2 in JNIFlags.cmake

Colin Patrick McCabe created HADOOP-8747: -------------------------------------------- Summary: Syntax error on cmake version 2.6 patch 2 in JNIFlags.cmake Key: HADOOP-8747 URL ...

Colin Patrick McCabe (JIRA)
Aug 29, 2012 at 6:06 pm
Aug 29, 2012 at 6:06 pm

0	[jira] [Created] (HADOOP-8746) TestNativeIO fails when run with jdk7

Thomas Graves created HADOOP-8746: ------------------------------------- Summary: TestNativeIO fails when run with jdk7 Key: HADOOP-8746 URL: https://issues.apache.org/jira/browse/HADOOP-8746 ...

Thomas Graves (JIRA)
Aug 29, 2012 at 6:06 pm
Aug 29, 2012 at 6:06 pm

0	[jira] [Created] (HADOOP-8744) Fix the OSX native build

Eli Collins created HADOOP-8744: ----------------------------------- Summary: Fix the OSX native build Key: HADOOP-8744 URL: https://issues.apache.org/jira/browse/HADOOP-8744 Project: Hadoop Common ...

Eli Collins (JIRA)
Aug 29, 2012 at 5:15 am
Aug 29, 2012 at 5:15 am

0	[jira] [Created] (HADOOP-8743) Change version in branch-2 to 2.2.0-SNAPSHOT, Update CHANGES.txt

Siddharth Seth created HADOOP-8743: -------------------------------------- Summary: Change version in branch-2 to 2.2.0-SNAPSHOT, Update CHANGES.txt Key: HADOOP-8743 URL ...

Siddharth Seth (JIRA)
Aug 28, 2012 at 9:07 pm
Aug 28, 2012 at 9:07 pm

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