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https://issues.apache.org/jira/browse/HADOOP-2123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Edward Yoon resolved HADOOP-2123.
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Resolution: Won't Fix
Closing.
> Enhancements and Improvement for Host monitor in a big cluster
> --------------------------------------------------------------
>
> Key: HADOOP-2123
> URL: https://issues.apache.org/jira/browse/HADOOP-2123
> Project: Hadoop
> Issue Type: Improvement
> Components: dfs, mapred
> Affects Versions: 0.14.0
> Reporter: Shuguang Liu
> Assignee: Edward Yoon
> Fix For: 0.16.0
>
> Attachments: hadoop.0.14-pro.tgz, new_commands_v01.patch
>
>
> New Enhancements for HADOOP on big clusters.
> I put some new commands into HADOOP based on 0.14.0 and modified some bugs
> especially in the scheduling part.
> Enhancements:
> 1. Add Some commands to make it easy to monitor the cluster.
> hhosts - Display hosts status in the cluster.
> hload - Display host load information including cpu usage, cpu usage and so
> on.
> hslot - Change host available slot to improve efficiency.
> hopen - Enable a host on the fly.
> hclose - Disable a host on the fly
> 2. Add Some commands to improve efficiency for a "Big Cluster"
> htop - Bring a job specified to the top prirority on the fly.
> hbot - Bring a job specified to the lowest priority on the fly.
> hjobkill - Kill a job
> hjobs - List job information in detailed format.
> 3. Enhance the task trunk dispatching method to make it more efficient when a
> job has many tasks.
> 4. Improved job submitting efficiency asuring right priority
> [ Show ยป ] Shuguang Liu - 30/Oct/07 01:15 AM New Enhancements for HADOOP on
> big clusters. I put some new commands into HADOOP based on 0.14.0 and
> modified some bugs especially in the scheduling part. Enhancements: 1. Add
> Some commands to make it easy to monitor the cluster. hhosts - Display hosts
> status in the cluster. hload - Display host load information including cpu
> usage, cpu usage and so on. hslot - Change host available slot to improve
> efficiency. hopen - Enable a host on the fly. hclose - Disable a host on the
> fly 2. Add Some commands to improve efficiency for a "Big Cluster" htop -
> Bring a job specified to the top prirority on the fly. hbot - Bring a job
> specified to the lowest priority on the fly. hjobkill - Kill a job hjobs -
> List job information in detailed format. 3. Enhance the task trunk
> dispatching method to make it more efficient when a job has many tasks. 4.
> Improved job submitting efficiency asuring right priority
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