Hadoop YARN and cgroup2

Hello all, We are investigating upgrading our Operating Systems to a version with cgroup2. We are already using YARN with the LinuxContainerExecutor and CgroupsLCEResourcesHandler. Unfortunately, cgroup2 has completely its hierarchy. I searched in YARN JIRA and in documentation but I

CVE-2021-25642: Apache Hadoop YARN remote code execution in ZKConfigurationStore of capacity scheduler

Severity: important Versions affected: 2.9.0 to 2.10.1, 3.0.0-alpha to 3.2.3, 3.3.0 to 3.3.3 Description: ZKConfigurationStore which is optionally used by CapacityScheduler of Apache Hadoop YARN deserializes data obtained from ZooKeeper without validation. An attacker having access

Re: Question about Hadoop YARN in 2.7.3

Sorry about the formatting on that, I hit send before I'd checked it. Here it is again, hopefully a bit more legibly (and with a fix): > I implemented something similar last year to guarantee resource provisioning when we deployed to YARN. We stuck to one-label-per-node to keep things relatively

Re: Question about Hadoop YARN in 2.7.3

Heya, I implemented something similar last year to guarantee resource provisioning when we deployed to YARN. We stuck to one-label-per-node to keep things relatively simple. Iirc, these are the basic steps: - add `yarn.node-labels.configuration-type=centralized` to your yarn-site.xml - set up

Re: Question about Hadoop YARN in 2.7.3

You can automate to create a capacity-scheduler.xml based on the requirement, after that you can deploy it on RM, and refresh the queue. Is it your requirement to not to restart RM or not to change capacity scheduler? On Thu, May 13, 2021 at 2:45 PM 慧波彭 wrote: > Hello, we use capacity scheduler

Question about Hadoop YARN in 2.7.3

Hello, we use capacity scheduler to allocate resources in our production environment, and use node label to isolate resources. There is a demand that we want to dynamically create node labels and associate node labels to existing queue without changing capacity-scheduler.xml. Does anyone know how

user quotas in hadoop/yarn

Dear Hadoop community, Is there a way to setup use quotas for cpu, memory and storage per user/group/project in yarn/hadoop? Thank you very much NOTICE Please consider the environment before printing this email. This message and any attachments are intended for the addressee named and may

CVE-2017-15718: Apache Hadoop YARN NodeManager vulnerability

CVE-2017-15718: Apache Hadoop YARN NodeManager vulnerability Severity: Important Vendor: The Apache Software Foundation Versions Affected: Hadoop 2.7.3, 2.7.4 Description: In Apache Hadoop 2.7.3 and 2.7.4, the security fix for CVE-2016-3086 is incomplete. The YARN NodeManager can leak

Running MPI jobs on hadoop yarn cluster

Hello Hadoop Users, I want to know are there any tools available to run MPI jobs on hadoop yarn cluster? Thanks Ravikant

Communication in Hadoop YARN?

Hi, Hadoop YARN uses HDFS to store and read data from the filesystem. But what communication technology uses to transfer data between map and reduces, and for the node managers contact the resource manager? All communication in point to point? Thanks,

Re: Communication in Hadoop YARN?

manager : *This communication basically happens through RPC using proto bufs. Regards, + Naga On Wed, Sep 16, 2015 at 8:01 PM, xeonmailinglist <xeonmailingl...@gmail.com> wrote: > Hi, > > Hadoop YARN uses HDFS to store and read data from the filesystem. But what > communicati

Re: Hadoop Yarn UI not showing newest jobs first

-To: user@hadoop.apache.org user@hadoop.apache.org Date: Wednesday, July 15, 2015 at 10:10 AM To: user@hadoop.apache.org user@hadoop.apache.org Subject: Hadoop Yarn UI not showing newest jobs first My cluster 2.6.0 has app ids like: application_1434047822925_0001 The UI sorts by this id as a string

Hadoop Yarn UI not showing newest jobs first

My cluster 2.6.0 has app ids like: application_1434047822925_0001 The UI sorts by this id as a string, which means that once the ids go to application_1434047822925_ and beyond to application_1434047822925_1, the newest jobs are not at the top of the list. I found

Re: Hadoop Yarn UI not showing newest jobs first

Date: Wednesday, July 15, 2015 at 10:10 AM To: user@hadoop.apache.orgmailto:user@hadoop.apache.org user@hadoop.apache.orgmailto:user@hadoop.apache.org Subject: Hadoop Yarn UI not showing newest jobs first My cluster 2.6.0 has app ids like: application_1434047822925_0001 The UI sorts by this id

Re: Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many developers about various features, their contributions, it was a great session overall. I am coordinating this year's BOF as well and garnering topics of discussion. A BOF by definition involves

Re: Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

, Subru On Wed, Jun 3, 2015 at 10:12 AM, Vinod Kumar Vavilapalli vino...@apache.orgmailto:vino...@apache.org wrote: Hi all, We had a blast of a BOF session on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many developers about various features

Re: Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

through. On Wed, Jun 3, 2015 at 10:12 AM, Vinod Kumar Vavilapalli vino...@apache.orgmailto:vino...@apache.org wrote: Hi all, We had a blast of a BOF session on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many developers about various features

RE: Hadoop YARN Map Reduce Job failing with a Null Pointer Exception.

Hi,Your error stack looks simmilar to the this issue in jira: https://issues.apache.org/jira/browse/MAPREDUCE-5703Maybe worth reading the link as it seemed to be resolved (but not as a patch, more as a development issue) With Regards,Yves Date: Sat, 6 Jun 2015 00:07:01 -0400 Subject: Hadoop

Hadoop YARN Map Reduce Job failing with a Null Pointer Exception.

Can someone please let me know the root cause here. 15/06/05 21:21:31 INFO mapred.ClientServiceDelegate: Application state is completed. FinalApplicationStatus=SUCCEEDED. Redirecting to job history server 15/06/05 21:21:40 INFO mapred.ClientServiceDelegate: Application state is completed.

Re: Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

of a BOF session on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many developers about various features, their contributions, it was a great session overall. I am coordinating this year's BOF as well and garnering topics of discussion. A BOF by definition

Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

Hi all, We had a blast of a BOF session on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many developers about various features, their contributions, it was a great session overall. I am coordinating this year's BOF as well and garnering topics

Re: Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

%20ORDER%20BY%20created%20ASC, but that list is too long to go through. On Wed, Jun 3, 2015 at 10:12 AM, Vinod Kumar Vavilapalli vino...@apache.org wrote: Hi all, We had a blast of a BOF session on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many

Re: Hadoop YARN Birds of a Feather (BOF) Session at Hadoop Summit San Jose 2015

wrote: Hi all, We had a blast of a BOF session on Hadoop YARN at last year's Hadoop Summit. We had lots of fruitful discussions led by many developers about various features, their contributions, it was a great session overall. I am coordinating this year's BOF as well and garnering topics

RE: how to delete logs automatically from hadoop yarn

for logging. Thanks Regards Rohith Sharma K S From: Smita Deshpande [mailto:smita.deshpa...@cumulus-systems.com] Sent: 20 April 2015 10:23 To: user@hadoop.apache.org Subject: RE: how to delete logs automatically from hadoop yarn Hi Rohith, Thanks for your solution. The actual problem we

RE: how to delete logs automatically from hadoop yarn

11:02 AM To: user@hadoop.apache.org Subject: RE: how to delete logs automatically from hadoop yarn That’s interesting use-case!! let’s say I want to delete container logs which are older than week or so. So is there any configuration to do that? I don’t think there is such configuration exist

RE: how to delete logs automatically from hadoop yarn

2015 05:53 To: user@hadoop.apache.org Subject: RE: how to delete logs automatically from hadoop yarn Hi Rohith, Thanks for your solution. The actual problem we are looking at is : We have a lifelong running application, so configurations by which logs will be deleted right after application

how to delete logs automatically from hadoop yarn

How to delete logs from Hadoop yarn automatically, I Have tried following settings but it is not working Is there any other way we can do this or am I doing something wrong !! property nameyarn.log-aggregation-enable/name valuefalse/value /property property nameyarn.nodemanager.log.retain

RE: how to delete logs automatically from hadoop yarn

value0/value /property Thanks Regards Rohith Sharma K S From: Sunil Garg [mailto:sunil.g...@cumulus-systems.com] Sent: 20 April 2015 09:52 To: user@hadoop.apache.org Subject: how to delete logs automatically from hadoop yarn How to delete logs from Hadoop yarn automatically, I Have tried

RE: how to delete logs automatically from hadoop yarn

: Rohith Sharma K S [mailto:rohithsharm...@huawei.com] Sent: Monday, April 20, 2015 10:09 AM To: user@hadoop.apache.org Subject: RE: how to delete logs automatically from hadoop yarn Hi With below configuration , log deletion should be triggered. You can see from the log that deletion has been set

Re: hadoop yarn

: Refer below link, http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Thanks Regards Rohith Sharma K S *From:* siva kumar [mailto:siva165...@gmail.com] *Sent:* 20 January 2015 11:24 *To:* user@hadoop.apache.org *Subject:* hadoop yarn

RE: hadoop yarn

Refer below link, http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Thanks Regards Rohith Sharma K S From: siva kumar [mailto:siva165...@gmail.com] Sent: 20 January 2015 11:24 To: user@hadoop.apache.org Subject: hadoop yarn Hi All, Can

Re: hadoop yarn

if you suggest me any example programs on MR2 it could help me out in a better way. Thanks and regards, siva On Tue, Jan 20, 2015 at 11:45 AM, Rohith Sharma K S rohithsharm...@huawei.com wrote: Refer below link, http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site

Re: hadoop yarn

at 11:45 AM, Rohith Sharma K S rohithsharm...@huawei.com wrote: Refer below link, http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Thanks Regards Rohith Sharma K S *From:* siva kumar [mailto:siva165...@gmail.com] *Sent:* 20 January 2015

Re: Memory settings in hadoop YARN

Hi Narayanan, I've read a great blog post by Rohit Bakhshi before, recommend it to you : http://hortonworks.com/blog/how-to-plan-and-configure-yarn-in-hdp-2-0/. I think most your questions are covered by this blog post. Please let me know if you have more questions. Thanks, Wangda Tan On Wed,

Nutch 1.7 failing on Hadoop YARN after running for a while.

for appattempt_1408512952691_0017_02 exited with exitCode: -1000 due to: File does not exist: hdfs:// server1.mydomain.com:9000/tmp/hadoop-yarn/staging/df/.staging/job_1408512952691_0017/job.jar .Failing this attempt.. Failing the application.

Memory settings in hadoop YARN

Hi We run our Pig jobs in Hadoop 0.23 which has the new YARN architecture. I had few questions on memory used by the jobs : We have following settings for memory. mapred.child.java.opts mapreduce.map.memory.mb mapreduce.reduce.memory.mb yarn.app.mapreduce.am.resource.mb

Memory settings in hadoop YARN

Hi We run our Pig jobs in Hadoop 0.23 which has the new YARN architecture. I had few questions on memory used by the jobs : We have following settings for memory. mapred.child.java.opts mapreduce.map.memory.mb mapreduce.reduce.memory.mb yarn.app.mapreduce.am.resource.mb

Passing VM arguments while submitting a job in Hadoop YARN.

Hi All, All we submit a job using bin/hadoop script on teh resource manager node, what if we need our job to be passed in a vm argument like in my case 'target-env' , how o I do that , will this argument be passed to all the node managers in different nodes ?

Re: hadoop/yarn and task parallelization on non-hdfs filesystems

-hadoop-yarn-avoiding-6-time-consuming-gotchas/ On Fri, Aug 15, 2014 at 2:11 PM, java8964 java8...@hotmail.com wrote: Interesting to know that. I also want to know what underline logic holding the force to only generate 25-35 parallelized containers, instead of up to 1300. Another suggestion I

Re: hadoop/yarn and task parallelization on non-hdfs filesystems

blog post [1] on this topic (see #6) and I wish I had read that sooner. With the above configuration values, I can now utilize the cluster at 100%. Thanks for everyone's input! Calvin [1] http://blog.cloudera.com/blog/2014/04/apache-hadoop-yarn-avoiding-6-time-consuming-gotchas/ On Fri

Re: hadoop/yarn and task parallelization on non-hdfs filesystems

, assume you have a lot of small files. Yong From: ha...@cloudera.com Date: Fri, 15 Aug 2014 16:45:02 +0530 Subject: Re: hadoop/yarn and task parallelization on non-hdfs filesystems To: user@hadoop.apache.org Does your non-HDFS filesystem implement a getBlockLocations API, that MR

RE: hadoop/yarn and task parallelization on non-hdfs filesystems

can get good utilization of your cluster, assume you have a lot of small files. Yong From: ha...@cloudera.com Date: Fri, 15 Aug 2014 16:45:02 +0530 Subject: Re: hadoop/yarn and task parallelization on non-hdfs filesystems To: user@hadoop.apache.org Does your non-HDFS filesystem

Re: hadoop/yarn and task parallelization on non-hdfs filesystems

16:45:02 +0530 Subject: Re: hadoop/yarn and task parallelization on non-hdfs filesystems To: user@hadoop.apache.org Does your non-HDFS filesystem implement a getBlockLocations API, that MR relies on to know how to split files? The API is at http://hadoop.apache.org/docs/stable2/api

RE: hadoop/yarn and task parallelization on non-hdfs filesystems

file, so you can get good utilization of your cluster, assume you have a lot of small files. Yong From: ha...@cloudera.com Date: Fri, 15 Aug 2014 16:45:02 +0530 Subject: Re: hadoop/yarn and task parallelization on non-hdfs filesystems To: user@hadoop.apache.org Does your

Re: hadoop/yarn and task parallelization on non-hdfs filesystems

such parameters? Thanks, Calvin [1] https://stackoverflow.com/questions/25269964/hadoop-yarn-and-task-parallelization-on-non-hdfs-filesystems On Tue, Aug 12, 2014 at 12:29 PM, Calvin iphcal...@gmail.com wrote: Hi all, I've instantiated a Hadoop 2.4.1 cluster and I've found that running MapReduce

hadoop/yarn and task parallelization on non-hdfs filesystems

Hi all, I've instantiated a Hadoop 2.4.1 cluster and I've found that running MapReduce applications will parallelize differently depending on what kind of filesystem the input data is on. Using HDFS, a MapReduce job will spawn enough containers to maximize use of all available memory. For

Re: Setting Up First Hadoop / Yarn Cluster

I found what was causing trouble (which it looks like others have seen as well): Ubuntu (and maybe other distros?) has 127.0.1.1 as a loopback address to the node's hostname in /etc/hosts. Removing this line resolved some connection issues my nodes were having. ~Houston King On Thu, Jul 31,

Re: Setting Up First Hadoop / Yarn Cluster

Probably permission issue. On Thu, Jul 31, 2014 at 11:32 AM, Houston King houston.k...@gmail.com wrote: Hey Everyone, I'm a noob working to setup my first 13 node Hadoop 2.4.0 cluster, and I've run into some problems that I'm having a heck of a time debugging. I've been following the

How to specify the job to run on the specific nodes(machines) in the hadoop yarn cluster?

Hi all, RT. I want to run a job on specific two nodes in the cluster? How to configure the yarn? Dose yarn queue help? Thanks

Re: How to specify the job to run on the specific nodes(machines) in the hadoop yarn cluster?

https://issues.apache.org/jira/browse/YARN-796 Not yet released, so this is not yet supported. On Wed, Jul 30, 2014 at 2:34 AM, adu dujinh...@hzduozhun.com wrote: Hi all, RT. I want to run a job on specific two nodes in the cluster? How to configure the yarn? Dose yarn queue help? Thanks

Re: Using resource manager as standalone component from hadoop yarn

the resource manager from the hadoop yarn code base for building my platform for my use case, I was wondering if anyone here have used only the resource manager from hadoop yarn code base and how did they separated the resource manager component from the other code. Thanks Regards, Anurag

Re: Hadoop YARN 2.2.0 Streaming Memory Limitation

thanks for the input. unfortunately it doesn’t solve our problem, if we set the properties: yarn.nodemanager.resource.memory-mb = 1024 mapreduce.map.memory.mb = 1024 there are no containers spawned and no jobs started. if I set: yarn.nodemanager.resource.memory-mb = 2048

Re: Hadoop YARN 2.2.0 Streaming Memory Limitation

Hi Arun, hi all, thanks a lot for your input. we got it to run correctly, although not exactly the solution you proposed, but it’s close: the main error we made is that on a yarn controller node the memory footprint must be set differently than on a hadoop worker node. following rule of

Hadoop YARN 2.2.0 Streaming Memory Limitation

hello hadoop-users! We are currently facing a frustrating hadoop streaming memory problem. our setup: our compute nodes have about 7 GB of RAM hadoop streaming starts a bash script wich uses about 4 GB of RAM therefore it is only possible to start one and only one task per node out of the box

Re: Hadoop YARN 2.2.0 Streaming Memory Limitation

Can you try setting yarn.nodemanager.resource.memory-mb(Amount of physical memory, in MB, that can be allocated for containers), say 1024, and also set mapreduce.map.memory.mb to 1024? On Mon, Feb 24, 2014 at 1:27 AM, Patrick Boenzli patrick.boen...@soom-it.ch wrote: hello hadoop-users! We

Re: Hadoop YARN 2.2.0 Streaming Memory Limitation

Can you pls try with mapreduce.map.memory.mb = 5124 mapreduce.map.child.java.opts=-Xmx1024 ? This way the map jvm gets 1024 and 4G is available for the container. Hope that helps. Arun On Feb 24, 2014, at 1:27 AM, Patrick Boenzli patrick.boen...@soom-it.ch wrote: hello hadoop-users! We

Is there any way to run C++ code with native avro libraries on Hadoop / YARN?

Hi everybody, in our project we have a lot of C++ code which we'd like to run on Hadoop. Because of the complexity of input and output structures for this code I'd like to use AVRO as serialization/deserialization format. I figured out a way to do that with custom Java input and output format

Re: Hadoop Yarn

, Rajesh Jain wrote: I have some jvm options which i want to configure only for a few nodes in the cluster using Hadoop yarn. How do i di it. If i edit the mapred-site.xml it gets applied to all the task jvms. I just want handful of map jvms to have that option and other map jvm not have

Re: Hadoop Yarn - samples

Take a look at the dist-shell example in http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/ I recently wrote up another simplified version of it for illustration purposes here: https://github.com

Re: Hadoop Yarn - samples

a look at the dist-shell example in http://svn.apache.org/viewvc/hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-applications/hadoop-yarn-applications-distributedshell/ I recently wrote up another simplified version of it for illustration purposes here: https://github.com

RE: Hadoop Yarn - samples

Hi Arun, Thanks for your reply. Actually i've installed apache hadoop. The samples you shared looks like hortonworks so will it work fine for me? I got a doubt on this so asking here. Thanks, Manickam P From: a...@hortonworks.com Subject: Re: Hadoop Yarn - samples Date: Thu, 29 Aug 2013 07:08

Hadoop Yarn

I have some jvm options which i want to configure only for a few nodes in the cluster using Hadoop yarn. How do i di it. If i edit the mapred-site.xml it gets applied to all the task jvms. I just want handful of map jvms to have that option and other map jvm not have that options. Thanks

Re: Hadoop Yarn

, Rajesh Jain wrote: I have some jvm options which i want to configure only for a few nodes in the cluster using Hadoop yarn. How do i di it. If i edit the mapred-site.xml it gets applied to all the task jvms. I just want handful of map jvms to have that option and other map jvm not have

Re: Hadoop Yarn

://hortonworks.com/ On Aug 29, 2013, at 1:59 PM, Rajesh Jain wrote: I have some jvm options which i want to configure only for a few nodes in the cluster using Hadoop yarn. How do i di it. If i edit the mapred-site.xml it gets applied to all the task jvms. I just want handful of map jvms to have

Re: Hadoop Yarn

:59 PM, Rajesh Jain wrote: I have some jvm options which i want to configure only for a few nodes in the cluster using Hadoop yarn. How do i di it. If i edit the mapred-site.xml it gets applied to all the task jvms. I just want handful of map jvms to have that option and other map jvm

RE: Hadoop Yarn - samples

Perhaps you can try writing the same yarn application using these steps. http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Thanks Devaraj k From: Punnoose, Roshan [mailto:rashan.punnr...@merck.com] Sent: 29 August 2013 19:43 To: user

Hadoop Yarn - samples

Hi, I have just installed Hadoop 2.0.5 alpha version. I want to analyse how the Yarn resource manager and node mangers works. I executed the map reduce examples but i want to execute the samples in Yarn. Searching for that but unable to find any. Please help me. Thanks, Manickam P

Re: Hadoop Yarn - samples

you can follow this http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html and build your own applications On Wed, Aug 28, 2013 at 5:17 PM, Manickam P manicka...@outlook.com wrote: Hi, I have just installed Hadoop 2.0.5 alpha version. I want

NoClassDefFoundError: org/apache/hadoop/yarn/service/CompositeService

/hdfs:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs/lib/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/yarn/lib/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/yarn/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/mapreduce2/lib/*:/opt

RE: NoClassDefFoundError: org/apache/hadoop/yarn/service/CompositeService

/*:/contrib/capacity-scheduler/*.jar:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs/lib/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/yarn/lib/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share

Re: NoClassDefFoundError: org/apache/hadoop/yarn/service/CompositeService

:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs/lib/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/hdfs/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/yarn/lib/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/yarn/*:/opt/hadoop/hadoop-2.0.0-cdh4.3.0/share/hadoop/mapreduce2/lib/*:/opt/hadoop

Re: Hadoop-Yarn-MR reading InputSplits and processing them by the RecordReader, architecture/design question.

Thank you very much for answering my question. Is there any publicly available Hadoop-MR-Yarn UML diagrams (class, activity etc), or some more in-depth documentation, except the one on official site. I am interested in implementation details/documentation of MR AM and MR containers (old

Hadoop-Yarn-MR reading InputSplits and processing them by the RecordReader, architecture/design question.

Hi (I am using Yarn Hadoop-3.0.0.SNAPSHOT, revision 1437315M) I have a question regarding my assumptions on the Yarn-MR design, specially the InputSplit processing. Can someone confirm or point out my mistakes in my MR-Yarn design assumptions? These are my assumptions regarding design. 1.

Re: Hadoop-Yarn-MR reading InputSplits and processing them by the RecordReader, architecture/design question.

You got that mostly right. And it doesn't differ much in Hadoop 1.* either. With MR AM doing the work that was earlier done in JobTracker., the JobClient and the task side doesn't change much. FileInputFormat.getsplits() is called by client itself, so you should look for logs on the client

Hadoop Yarn assembly error

Hi All I have 3 quick questions to ask. 1. I am following this single node tutorial http://hadoop.apache.org/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/SingleCluster.html. Unfortunately when I issue maven command mvn clean install assembly:assembly -Pnative I get the following error. [INFO

Re: Compiling a mapreduce job under the new Apache Hadoop YARN

Worked perfectly! Thanks a lot! :) On 11 Aug 2012, at 16:54, Harsh J ha...@cloudera.com wrote: Hi Pantazis, It is better to use maven or other such tools to develop MR Java programs, as that handles dependencies for you. In maven you may use the hadoop-client POM. Alternatively, if you

Hadoop yarn tasklevel logging with log4j

Hi, I have been trying to setup up Hadoop logging at the task level but with no success so far. I have modified log4j.properties and set many parameters to DEBUG level (log4j.logger.org.apache.hadoop.mapred.Task=DEBUG log4j.logger.org.apache.hadoop.mapred.MapTask=DEBUG

Re: Hadoop yarn tasklevel logging with log4j

Sherif, For 2.x, use via your Job's configuration, the properties mapreduce.map.log.level and mapreduce.reduce.log.level (valid values are TRACE/DEBUG/INFO/WARN/ERROR/FATAL) to switch the Child JVM's task logging levels. On Wed, Jun 27, 2012 at 5:53 PM, Sherif Akoush sherif.ako...@gmail.com

Hadoop YARN/MapReduce Meetup during Hadoop Summit 2012

Folks, I thought I'd drop a note and let folks know that I've scheduled a Hadoop YARN/MapReduce meetup during Hadoop Summit, June 2012. The agenda is: # YARN - State of the art # YARN futures - Premption - Resource Isolation - Multi-resource scheduling # Implementing new YARN

Re: Hbase compatible for Hadoop Yarn

, Feb 7, 2012 at 9:54 AM, raghavendhra rahul raghavendhrara...@gmail.com wrote: Hi, What is the suitable version of hbase that can be tested with hadoop yarn. -- Harsh J Customer Ops. Engineer Cloudera | http://tiny.cloudera.com/about -- Harsh J Customer Ops. Engineer

Re: how does Hadoop Yarn support different programming models?

Yep! Take a look at the link Mahadev sent on how to get your application to work inside YARN. http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/YARN.html http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Arun

how does Hadoop Yarn support different programming models?

I know Hadoop Yarn can support MapReduce job well, but I have not found DAG model task. Can you give me some demonstration I missed out , and point out how to build my own programming models in the Hadoop Yarn. -- Bing Jiang

Re: how does Hadoop Yarn support different programming models?

Hi Bing, These links should give you more info: http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/YARN.html http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Hope that helps. thanks mahadev On Mon, Dec 26, 2011 at 1

Re: how does Hadoop Yarn support different programming models?

-yarn/hadoop-yarn-site/YARN.html http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Hope that helps. thanks mahadev On Mon, Dec 26, 2011 at 1:57 AM, Bing Jiang jiangbinglo...@gmail.comwrote: I know Hadoop Yarn can support MapReduce job

Re: how does Hadoop Yarn support different programming models?

maha...@hortonworks.comwrote: Hi Bing, These links should give you more info: http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/YARN.html http://hadoop.apache.org/common/docs/r0.23.0/hadoop-yarn/hadoop-yarn-site/WritingYarnApplications.html Hope that helps

Re: Error while building Hadoop-Yarn

...@gmail.com wrote: Hi, I am using apache-maven-3.0.3 and i have set LD_LIBRARY_PATH=/usr/local/lib which has google protocbuf library. I am getting following error while building hadoop-yarn using mvn clean install -DskipTests=true [INFO] hadoop-yarn-api

Error while building Hadoop-Yarn

Hi, I am using apache-maven-3.0.3 and i have set LD_LIBRARY_PATH=/usr/local/lib which has google protocbuf library. I am getting following error while building hadoop-yarn using mvn clean install -DskipTests=true [INFO] hadoop-yarn-api ... SUCCESS [14.904s] [INFO

Re: Error while building Hadoop-Yarn

to skip them. Arun Sent from my iPhone On Aug 18, 2011, at 11:26 PM, rajesh putta rajesh.p...@gmail.com wrote: Hi, I am using apache-maven-3.0.3 and i have set LD_LIBRARY_PATH=/usr/local/lib which has google protocbuf library. I am getting following error while building hadoop-yarn