[jira] Created: (HADOOP-2339) [Hbase Shell] Delete command with no WHERE clause

     [ https://issues.apache.org/jira/browse/HADOOP-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward Yoon updated HADOOP-2339:
--------------------------------

    Status: Open  (was: Patch Available)

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Edward Yoon updated HADOOP-2339:
--------------------------------

    Status: Patch Available  (was: Open)

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Hudson commented on HADOOP-2339:
--------------------------------

Integrated in Hadoop-Nightly #322 (See [http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Nightly/322/])

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Hadoop QA commented on HADOOP-2339:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12370926/2339_v04.patch
against trunk revision r600771.

    @author +1.  The patch does not contain any @author tags.

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac +1.  The applied patch does not generate any new compiler warnings.

    findbugs +1.  The patch does not introduce any new Findbugs warnings.

    core tests +1.  The patch passed core unit tests.

    contrib tests -1.  The patch failed contrib unit tests.

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1257/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1257/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1257/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1257/console

This message is automatically generated.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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     [ https://issues.apache.org/jira/browse/HADOOP-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward Yoon updated HADOOP-2339:
--------------------------------

    Status: Open  (was: Patch Available)

Canceling because QA returns -1

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Edward Yoon updated HADOOP-2339:
--------------------------------

    Status: Patch Available  (was: Open)

Re-trying after 2333 comitted.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Hadoop QA commented on HADOOP-2339:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12370926/2339_v04.patch
against trunk revision r601232.

    @author +1.  The patch does not contain any @author tags.

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac +1.  The applied patch does not generate any new compiler warnings.

    findbugs +1.  The patch does not introduce any new Findbugs warnings.

    core tests +1.  The patch passed core unit tests.

    contrib tests -1.  The patch failed contrib unit tests.

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1270/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1270/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1270/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1270/console

This message is automatically generated.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Bryan Duxbury updated HADOOP-2339:
----------------------------------

    Priority: Minor  (was: Major)

Not a major issue, but should still be looked at.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>            Priority: Minor
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Bryan Duxbury commented on HADOOP-2339:
---------------------------------------

To clarify this issue, are we talking about what is essentially an ALTER TABLE DROP COLUMN in SQL? If so, the description should be changed to reflect that.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Edward Yoon updated HADOOP-2339:
--------------------------------

    Status: Open  (was: Patch Available)

canceling

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>            Priority: Minor
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Edward Yoon updated HADOOP-2339:
--------------------------------

    Status: Patch Available  (was: Open)

resubmitting

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>            Priority: Minor
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Hadoop QA commented on HADOOP-2339:
-----------------------------------

+1 overall.  Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12370926/2339_v04.patch
against trunk revision r603084.

    @author +1.  The patch does not contain any @author tags.

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac +1.  The applied patch does not generate any new compiler warnings.

    findbugs +1.  The patch does not introduce any new Findbugs warnings.

    core tests +1.  The patch passed core unit tests.

    contrib tests +1.  The patch passed contrib unit tests.

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1314/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1314/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1314/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/1314/console

This message is automatically generated.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>            Priority: Minor
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Edward Yoon updated HADOOP-2339:
--------------------------------

    Priority: Major  (was: Minor)

Now DELETE statement has a serious logical error,
It should be fixed, and  I think it is a important thing.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Bryan Duxbury commented on HADOOP-2339:
---------------------------------------

Let's specify very clearly what this issue regards.

As I understand it, the goal is to be able to delete a specific column family and qualifier on every row in the entire table. It's important to note that the qualifier is needed, because you can already do this essentially with ALTER TABLE if you want to delete an entire column family. Is this correct?

If so, I'm not sure that we should offer this functionality. It will be slow, especially if it's run as a single delete at a time in serial from the shell. I would think that from the shell, you have the ability to empty an entire table with TRUNCATE, or delete an entire column family with ALTER TABLE ... DROP columnfamily, and that's probably enough. If you actually do need to delete just a given qualified column name on every row in your table, you should write a mapreduce job or some other highly parallel way to do that. This is in keeping with the goal of making the shell both efficient and lean when it comes to the functionality it supports.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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Edward Yoon commented on HADOOP-2339:
-------------------------------------

'columnfamily', 'columnfamily:specified_qualifer' delete function is important thing.
I'm not bothering to make a example.

Also, I thought it should be work as inter-row wise partitioned sub structre parallelism.
But, now shell is 0.0.1 version.

Imagine the processing-speed:increment by row-count:increment 2d plots of scanner and mapreduce,
start points of processing-speed dimension and slopes will be different.
So, I thought the cross point find algorithm for the most faster automatical processing.

'Slow Performance' can't touch the grammar rules.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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udanax edited comment on HADOOP-2339 at 12/11/07 3:08 PM:
---------------------------------------------------------------

'columnfamily', 'columnfamily:specified_qualifer' delete function is important thing.
I'm not bothering to make a example.

Also, I thought it should be work as inter-row wise partitioned sub structre parallelism.
But, now shell is 0.0.1 version.

Imagine the processing-speed:increment by row-count:increment 2d plots of scanner and mapreduce,
start points of processing-speed dimension and slopes will be different.
So, I thought the cross point find algorithm for the most faster automatical processing.

'Slow Performance' -can't- should not touch the grammar rules.

      was (Author: udanax):
    'columnfamily', 'columnfamily:specified_qualifer' delete function is important thing.
I'm not bothering to make a example.

Also, I thought it should be work as inter-row wise partitioned sub structre parallelism.
But, now shell is 0.0.1 version.

Imagine the processing-speed:increment by row-count:increment 2d plots of scanner and mapreduce,
start points of processing-speed dimension and slopes will be different.
So, I thought the cross point find algorithm for the most faster automatical processing.

'Slow Performance' can't touch the grammar rules.
 

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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    [ https://issues.apache.org/jira/browse/HADOOP-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12550773 ]

Bryan Duxbury commented on HADOOP-2339:
---------------------------------------

@Edward: I have no idea what you are talking about.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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    [ https://issues.apache.org/jira/browse/HADOOP-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12551879 ]

Bryan Duxbury commented on HADOOP-2339:
---------------------------------------

Edward - Can you clarify your comment above? Maybe it's just a language thing, but I really don't understand your argument for the functionality.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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    [ https://issues.apache.org/jira/browse/HADOOP-2339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12552598 ]

Edward Yoon commented on HADOOP-2339:
-------------------------------------

Let's assume the webtable (bigtable paper)
{code}
url<row>          content   anchor                                      language   metatag   ...
http://abcd.com   ...       anchor:http://xyz.com    <xyz dot com>        ...        ...
                            anchor:http://udanax.org <udanax homepage>
{code}

At this time, 'udanax.org' was evaporation from the world-wide-web.
Then we need to delete the 'anchor:http://udanax.org' of all rows.

I think this method is formal, useful, basical method.

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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udanax edited comment on HADOOP-2339 at 12/17/07 5:37 PM:
---------------------------------------------------------------

Let's assume the webtable (bigtable paper)
{code}
url<row>          content   anchor                                      language   metatag   ...
http://abcd.com   ...       anchor:http://xyz.com    <xyz dot com>        ...        ...
                            anchor:http://udanax.org <udanax homepage>
{code}

At this time, 'udanax.org' was evaporation from the world-wide-web.
Then we need to delete the 'anchor:http://udanax.org' of all rows for transformation of url by anchor (inlink by outlink).

      was (Author: udanax):
    Let's assume the webtable (bigtable paper)
{code}
url<row>          content   anchor                                      language   metatag   ...
http://abcd.com   ...       anchor:http://xyz.com    <xyz dot com>        ...        ...
                            anchor:http://udanax.org <udanax homepage>
{code}

At this time, 'udanax.org' was evaporation from the world-wide-web.
Then we need to delete the 'anchor:http://udanax.org' of all rows.

I think this method is formal, useful, basical method.
 

> [Hbase Shell] Delete command with no WHERE clause
> -------------------------------------------------
>
>                 Key: HADOOP-2339
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2339
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: contrib/hbase
>    Affects Versions: 0.16.0
>            Reporter: Edward Yoon
>            Assignee: Edward Yoon
>             Fix For: 0.16.0
>
>         Attachments: 2339.patch, 2339_v02.patch, 2339_v03.patch, 2339_v04.patch
>
>
> using HbaseAdmin.deleteColumn() method.
> {code}
> DELETE column_name FROM table_name;
> {code}

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