FAQ
Using transient jetty servers as guis is a bad idea
---------------------------------------------------

Key: HADOOP-2896
URL: https://issues.apache.org/jira/browse/HADOOP-2896
Project: Hadoop Core
Issue Type: Bug
Components: mapred
Affects Versions: 0.17.0
Reporter: Owen O'Malley
Fix For: 0.17.0


Using transient jetty servers (ie. one that last 30 minutes) is a very poor replacement for a gui. I would much rather have bin/hadoop job -history out-dir print a textual summary rather than start a jetty server on the client machine that needs to be queried by the user.

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  • Amareshwari Sri Ramadasu (JIRA) at Feb 26, 2008 at 11:24 am
    [ https://issues.apache.org/jira/browse/HADOOP-2896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Amareshwari Sri Ramadasu reassigned HADOOP-2896:
    ------------------------------------------------

    Assignee: Amareshwari Sri Ramadasu
    Using transient jetty servers as guis is a bad idea
    ---------------------------------------------------

    Key: HADOOP-2896
    URL: https://issues.apache.org/jira/browse/HADOOP-2896
    Project: Hadoop Core
    Issue Type: Bug
    Components: mapred
    Affects Versions: 0.17.0
    Reporter: Owen O'Malley
    Assignee: Amareshwari Sri Ramadasu
    Fix For: 0.17.0


    Using transient jetty servers (ie. one that last 30 minutes) is a very poor replacement for a gui. I would much rather have bin/hadoop job -history out-dir print a textual summary rather than start a jetty server on the client machine that needs to be queried by the user.
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  • Amareshwari Sriramadasu (JIRA) at Mar 3, 2008 at 11:24 am
    [ https://issues.apache.org/jira/browse/HADOOP-2896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12574437#action_12574437 ]

    Amareshwari Sriramadasu commented on HADOOP-2896:
    -------------------------------------------------

    The textual summary for command hadoop job -history can be described as follows:

    bin/hadoop job -history <outputdir> can print the useful data for the user. i.e.
    1. print Job Details
    2. print Task Summary - consisting of number of total, successful, failed and killed map/reduce tasks.
    3. print Job Analysis - similar data as in analyle this job link in job history.
    4. print Failed and Killed map/reduce tasks.
    5. print failed/killed attempts on nodes - consisting of host name, comma seperated task attempt list failed/killed on that node.

    Since job history jsps has data about all the tasks and task attempts, and that data is very huge, we can take an option from user to print all the data or not. So,
    bin/hadoop job -history all <outputdir> can print the following
    1. print Job Details
    2. print Task Summary - consisting of number of total, successful, failed and killed map/reduce tasks.
    3. print Job Analysis - similar data as in analyle this job link in job history.
    4. print Failed and Killed map/reduce tasks.
    5. print Successful map/reduce tasks.
    6. print all map/reduce task attempts - along with hostname on which it ran.
    7. print failed/killed attempts on nodes - consisting of host name, comma seperated task attempt list failed/killed on that node.


    Thoughts?
    Using transient jetty servers as guis is a bad idea
    ---------------------------------------------------

    Key: HADOOP-2896
    URL: https://issues.apache.org/jira/browse/HADOOP-2896
    Project: Hadoop Core
    Issue Type: Bug
    Components: mapred
    Affects Versions: 0.17.0
    Reporter: Owen O'Malley
    Assignee: Amareshwari Sriramadasu
    Fix For: 0.17.0


    Using transient jetty servers (ie. one that last 30 minutes) is a very poor replacement for a gui. I would much rather have bin/hadoop job -history out-dir print a textual summary rather than start a jetty server on the client machine that needs to be queried by the user.
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  • Devaraj Das (JIRA) at Mar 17, 2008 at 5:25 am
    [ https://issues.apache.org/jira/browse/HADOOP-2896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

    Devaraj Das resolved HADOOP-2896.
    ---------------------------------

    Resolution: Duplicate

    Fixed as part of HADOOP-2901
    Using transient jetty servers as guis is a bad idea
    ---------------------------------------------------

    Key: HADOOP-2896
    URL: https://issues.apache.org/jira/browse/HADOOP-2896
    Project: Hadoop Core
    Issue Type: Bug
    Components: mapred
    Affects Versions: 0.17.0
    Reporter: Owen O'Malley
    Assignee: Amareshwari Sriramadasu
    Fix For: 0.17.0


    Using transient jetty servers (ie. one that last 30 minutes) is a very poor replacement for a gui. I would much rather have bin/hadoop job -history out-dir print a textual summary rather than start a jetty server on the client machine that needs to be queried by the user.
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  • Hudson (JIRA) at Mar 17, 2008 at 12:49 pm
    [ https://issues.apache.org/jira/browse/HADOOP-2896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12579412#action_12579412 ]

    Hudson commented on HADOOP-2896:
    --------------------------------

    Integrated in Hadoop-trunk #431 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/431/])
    Using transient jetty servers as guis is a bad idea
    ---------------------------------------------------

    Key: HADOOP-2896
    URL: https://issues.apache.org/jira/browse/HADOOP-2896
    Project: Hadoop Core
    Issue Type: Bug
    Components: mapred
    Affects Versions: 0.17.0
    Reporter: Owen O'Malley
    Assignee: Amareshwari Sriramadasu
    Fix For: 0.17.0


    Using transient jetty servers (ie. one that last 30 minutes) is a very poor replacement for a gui. I would much rather have bin/hadoop job -history out-dir print a textual summary rather than start a jetty server on the client machine that needs to be queried by the user.
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postedFeb 26, '08 at 5:40a
activeMar 17, '08 at 12:49p
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