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From "Paul Joseph Davis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (COUCHDB-1163) Document returned by id, but cannot be found by rev
Date Mon, 16 May 2011 20:12:47 GMT

    [ https://issues.apache.org/jira/browse/COUCHDB-1163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034271#comment-13034271
] 

Paul Joseph Davis commented on COUCHDB-1163:
--------------------------------------------

Me and Adam are poking through the code and noticed something unusual. Can you change the
return value at [1] to be something like {not_found, rev_missing} or similar to see if that's
the piece of code indicating that the revision is missing?

If that shows up, then could you log the input and output of the two calls at [2] and [3]
to check that the behavior is the same in both places (we treat the return value slightly
differently).

[1] https://github.com/apache/couchdb/blob/1.0.x/src/couchdb/couch_db.erl#L1056
[2] https://github.com/apache/couchdb/blob/1.0.x/src/couchdb/couch_db.erl#L1048
[3] https://github.com/apache/couchdb/blob/1.0.x/src/couchdb/couch_db.erl#L1085

> Document returned by id, but cannot be found by rev
> ---------------------------------------------------
>
>                 Key: COUCHDB-1163
>                 URL: https://issues.apache.org/jira/browse/COUCHDB-1163
>             Project: CouchDB
>          Issue Type: Bug
>          Components: Database Core
>    Affects Versions: 1.0.1, 1.0.2
>            Reporter: James Howe
>            Priority: Critical
>
> Somehow, our cluster has developed the following problem on a handful of documents. Will
post reproduction steps if we find them. All properties have been redacted. All the documents
this affects also have attachments, if that is significant. Once a document is in this situation,
it causes conflict detection, replication and include_docs to behave incorrectly or outright
fail.
> GET /database/4cdee83a118ea1cf3050b1d006144d46 returns
> {
>     "_id": "4cdee83a118ea1cf3050b1d006144d46",
>     "_rev": "10-df4bf65a6104ea240f100c30d3cb245d",
>     "foo": "bar"
> }
> GET /database/4cdee83a118ea1cf3050b1d006144d46?open_revs=all returns
> [
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "10-df4bf65a6104ea240f100c30d3cb245d",
>             "foo": "bar"
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "8-eea5e36daee12acd79a127abf36f7720",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "9-2cead1e4c813a4f0d10a9bc4aa28bfda",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "7-c3b44f004660caa496804409089b53d9",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "6-52e978041bb324d19e01a2ac5a243702",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "5-761bf28c6989f0fde41bdd5732c33159",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "4-abb005cf4b2d2dd12880a33af1e7066e",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "3-233e4624e620ec1c8b66f21a051832f8",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "10-55f0cdf9dd95ed230b733a2c826c842c",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "11-264c9d6c249ba2fc9b13df35cb447fd7",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "9-2cead1e4c813a4f0d10a9bc4aa28bfda",
>             _deleted: true
>         }
>     },
>     {
>         "ok": {
>             "_id": "4cdee83a118ea1cf3050b1d006144d46",
>             "_rev": "2-9f2df19059d9a460a12740a63a4d95e9",
>             _deleted: true
>         }
>     }
> ]
> GET /database/4cdee83a118ea1cf3050b1d006144d46?rev=10-df4bf65a6104ea240f100c30d3cb245d
returns
> {
>     "error": "not_found",
>     "reason": "missing"
> }

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