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https://issues.apache.org/jira/browse/HADOOP-1301?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552406
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acmurthy edited comment on HADOOP-1301 at 12/17/07 5:30 AM:
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{quote}
The following files serve as the documentation for this patch:
README: Gives an overview of HOD
getting_started.txt: Gives instructions on how to try out HOD
config.txt: A more detailed description of how to configure HOD.
{quote}
Hemanth, could you please make them Apache Forrest based documentation? We
could then put these up on the website etc.
Thanks!
was (Author: acmurthy):
{blockquote}
The following files serve as the documentation for this patch:
README: Gives an overview of HOD
getting_started.txt: Gives instructions on how to try out HOD
config.txt: A more detailed description of how to configure HOD.
{blockquote}
Hemanth, could you please make them Apache Forrest based documentation? We
could then put these up on the website etc.
Thanks!
> resource management proviosioning for Hadoop
> --------------------------------------------
>
> Key: HADOOP-1301
> URL: https://issues.apache.org/jira/browse/HADOOP-1301
> Project: Hadoop
> Issue Type: New Feature
> Components: mapred
> Affects Versions: 0.16.0
> Reporter: Pete Wyckoff
> Assignee: Hemanth Yamijala
> Fix For: 0.16.0
>
> Attachments: hod-hadoop.patch, hod-hadoop.v2.patch,
> hod-open-4.tar.gz, hod.0.2.2.tar.gz
>
>
> The Hadoop On Demand (HOD) project addresses the provisioning and managing of
> MapReduce instances on cluster resources. With HOD, the MapReduce user
> interacts with the cluster solely through a self-service interface and the
> JT, TT info ports. The user never needs to log into the cluster or even have
> an account on the cluster for that matter. HOD allocates nodes, provisions
> MapReduce (and optionally HDFS) on the cluster and when the user is done with
> MapReduce jobs, cleanly shuts down MapReduce and de-allocates the nodes
> (i.e., re-introducing them to the pool of available resources in the cluster).
> Using HOD, a cluster can be shared among different users in a fair and
> efficient manner. HOD is not a replacement or re-implementation of a
> traditional resource manager. HOD is implemented using the resource manager
> paradigm and at present is envisioned supporting Torque and Condor out of the
> box. It also supports "static" resources, i.e., a dedicated set of resources
> not using a resource manager.
> HOD is also self provisioning and, thus, can be used on systems such as EC2
> or a campus cluster not already running MapReduce software or a resouce
> manager. Figure 1 depicts a cluster using HOD. As the figure shows, the user
> never logs into the cluster itself. The user's jobs run as the 'hod' user (a
> configurable unix id).
> The user interacts with MapReduce and the cluster using the hod shell, hodsh.
> Once in the hodsh, the user can allocate/de-allocate nodes and automatically
> run JT, TTs, NN, DNs on those nodes without knowing the specifics of which
> nodes are running which or logging into any of those boxes. HOD transparently
> masks failures by allocating nodes to replace failed nodes. Once the user has
> allocated nodes, she can run /bin/MapReduce my1.jar and then /bin/MapReduce
> my2.jar ... from within the hod shell which automatically generates the
> configuration file for the MapReduce script. When done, the user will exit
> the shell.
> The hod shell has an automatic timeout so that users cannot hog resources
> they aren't using. The timeout applies only when there is no MapReduce job
> running. In addition, hod also has the option of tracking and enforcing
> user/group resource limits.
> Optionally, HOD can run dedicated log and directory services in the cluster.
> The log services are a central repository for collecting and retrieving
> Hadoop logs for any given job. The directory service provides an easy way to
> inspect what's running in the cluster or for the end user and html
> interfacing for getting to their JT and TT info ports.
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