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Henrik Hofmeister commented on COUCHDB-1367:
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No im not - i just made a script ensuring it gets set on all dbs - to save a request i did
the "just set it to 1" approach - assuming it wouldn't matter if i set it to 1 several times.
This is how i discovered there was such a problem. We had been getting it randomly before
- without ever realizing what the problem was exactly.
Its true that this specific case is for couchdb-lucene - however the general use case of being
able to predict how far you're away from being up to date is not couchdb-lucene specific -
i've for one created another in-house application that does exactly this - while performing
a chained map-reduce like operation (What im saying is - if you want to reap the benefits
of the changes feed and be aware of your progress - you'll need the right number)
> When settings revs_limit on db - the db increases its update_seq counter when viewing
stats - but not when getting changes
> --------------------------------------------------------------------------------------------------------------------------
>
> Key: COUCHDB-1367
> URL: https://issues.apache.org/jira/browse/COUCHDB-1367
> Project: CouchDB
> Issue Type: Bug
> Components: HTTP Interface
> Affects Versions: 1.1.1
> Environment: Any
> Reporter: Henrik Hofmeister
> Assignee: Bob Dionne
> Priority: Minor
> Labels: revs_limit
>
> If you put a number to _revs_limit on a db (to update it) - the http://host/dbname/ info
document gets an increase in update_seq number - however the changes feed does not contain
this change (while its not a change). This causes the update_seq in the dbinfo doc and the
last seq in the changes feed to differ - which breaks any application depending on the update_seq
number as the expected sequence size of the db (in my case - couchdb-lucene that will only
respond to stale requests because it thinks its not up to date)
> I know this is an edge case - but still its something fairly fundamental - that clearly
is not working as intended.
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