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From "Filipe Manana (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (COUCHDB-1266) Make _active_tasks more flexible
Date Sat, 17 Sep 2011 01:20:09 GMT

     [ https://issues.apache.org/jira/browse/COUCHDB-1266?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Filipe Manana updated COUCHDB-1266:
-----------------------------------

    Description: 
This proposal is simply to allow the output of _active_tasks to be less rigid. Basically to
allow each task to be able to output different JSON fields.

Somethings like the status text simply go away. Instead application can built it based on
more granular fields provided by _active_tasks.
Some examples:

1) "progress" (an integer percentage, for all tasks)

2) "database" (for compactions and indexer tasks)

3) "design_document" (for indexer and view compaction tasks)

4) "source" and "target" (for replications)

5) "docs_read", "docs_written", "doc_write_failures",
   "missing_revs_found", "missing_revs_checked", "source_seq",
   "checkpointed_source_seq" and "continuous" for replications


  was:
This proposal is simply to add a "stats" field to the _active_tasks results. This field can
be an arbitrary JSON value and each task can set it to whatever is appropriate for it.The
following patch also defines some basic stats for the existing tasks:

1) database compaction - # changes done, total changes, # of revisions copied, # of attachments
copied and progress (an integer percentage, same as what is exposed in the existing text field
"status");

2) view compaction - # of ids copied, total number of ids, # of kvs copied, total number of
kvs and progress

3) view indexing - # changes done, total changes, # inserted kvs, # deleted kvs, progress

4) replication - # missing revisions checked, # missing revisions found, # docs read, # docs
written, # doc write failures, source seq number, checkpointed source seq number, progress.

A screenshot of Futon with 3 different tasks:

http://dl.dropbox.com/u/25067962/active_tasks_stats.png

Patch at:

https://github.com/fdmanana/couchdb/compare/task_stats.diff



        Summary: Make _active_tasks more flexible  (was: Add stats field to _active_tasks)

> Make _active_tasks more flexible
> --------------------------------
>
>                 Key: COUCHDB-1266
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1266
>             Project: CouchDB
>          Issue Type: Improvement
>            Reporter: Filipe Manana
>            Assignee: Filipe Manana
>             Fix For: 1.2
>
>         Attachments: alternate-api.patch
>
>
> This proposal is simply to allow the output of _active_tasks to be less rigid. Basically
to allow each task to be able to output different JSON fields.
> Somethings like the status text simply go away. Instead application can built it based
on more granular fields provided by _active_tasks.
> Some examples:
> 1) "progress" (an integer percentage, for all tasks)
> 2) "database" (for compactions and indexer tasks)
> 3) "design_document" (for indexer and view compaction tasks)
> 4) "source" and "target" (for replications)
> 5) "docs_read", "docs_written", "doc_write_failures",
>    "missing_revs_found", "missing_revs_checked", "source_seq",
>    "checkpointed_source_seq" and "continuous" for replications

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