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https://issues.apache.org/jira/browse/COUCHDB-1163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13034048#comment-13034048
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Clare Walsh commented on COUCHDB-1163:
--------------------------------------
[Same cluster, different dev]
As far as I can tell this is happening due to an invalid document state. All
revisions in open_revs can be retrieved by rev *except* the current winner. But
interestingly, any revision (apart from 1 and 2) returned from revs=true for
the current winner ALSO can't be retrieved by rev.
No matter how far down into the couch code I go to add debug code the value in
the btree for those revisions is genuinely empty...
This would imply that the problem is initially caused by incorrect conflict
handling or replication, going to try to debug those bits next, any pointers
would be much appreciated.
> 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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