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From "Alexander Shorin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-582) _changes filter missing updates
Date Tue, 25 Jun 2013 21:03:20 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13693378#comment-13693378
] 

Alexander Shorin commented on COUCHDB-582:
------------------------------------------

Hm..I'd updated bug582.py to fit modern couchdb-python package, but the result I get on master
head (httplib2-0.8, couchdb-python-0.9) is always:

{code}
+one
changes {'last_seq': 2, 'results': [{'changes': [{'rev': '1-cc2a517fa3e1a5b6ae9e3fbea460b9b8'}],
'id': 'one', 'seq': 2}]}
+two
changes {'last_seq': 3, 'results': [{'changes': [{'rev': '1-3ca2f01d11f16acffd9bfc740e4c963b'}],
'id': 'two', 'seq': 3}]}
 two
changes {'last_seq': 4, 'results': [{'changes': [{'rev': '2-7efa0b7c0b924d89349d755a5fea9452'}],
'id': 'two', 'seq': 4}]}
 two
changes {'last_seq': 5, 'results': [{'changes': [{'rev': '3-2b31cf580e9bb5c63d65c7aa3506910a'}],
'id': 'two', 'seq': 5}]}
 one
changes {'last_seq': 6, 'results': [{'changes': [{'rev': '2-4586821503d458100d84e996c3dab9ed'}],
'id': 'one', 'seq': 6}]}
-one
changes {'last_seq': 7, 'results': [{'deleted': True, 'changes': [{'rev': '3-9b9b2cfbd85c1869387ce366e7a1665a'}],
'id': 'one', 'seq': 7}]}
-two
changes {'last_seq': 8, 'results': [{'deleted': True, 'changes': [{'rev': '4-13b322b54c4b9bf87f23c437e43a2f1e'}],
'id': 'two', 'seq': 8}]}
{code}

and no missed results fields for multiple runs. Could this issue be eventually fixed? Could
anyone reproduce it?
                
> _changes filter missing updates
> -------------------------------
>
>                 Key: COUCHDB-582
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-582
>             Project: CouchDB
>          Issue Type: Bug
>          Components: JavaScript View Server
>            Reporter: Chris Anderson
>            Assignee: Chris Anderson
>         Attachments: bug582.py
>
>
> reported on the user mailing list: 
> http://mail-archives.apache.org/mod_mbox/couchdb-user/200911.mbox/%3c4B10BD2C.5070200@rogerbinns.com%3e
> I know there is work to be done on the filter mechanism (specifically around process
reuse and concurrency)
> The current implementation requires a process per connected user. This should be not
that hard to patch.

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