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From Adam Kocoloski <kocol...@apache.org>
Subject Re: _revs_limit and _compact in 0.11
Date Tue, 08 Jun 2010 16:52:40 GMT
Fixed now, thanks Erick and Filipe.

On Jun 8, 2010, at 12:09 PM, Filipe David Manana wrote:

> Erick, the ticket is at:  https://issues.apache.org/jira/browse/COUCHDB-789
> 
> On Tue, Jun 8, 2010 at 4:54 PM, Filipe David Manana <fdmanana@gmail.com>wrote:
> 
>> It's definitely a bug.
>> I am looking at the compaction code, and it doesn't preserve the revs_limit
>> parameter in the compacted DB.
>> 
>> I'll create a JIRA ticket, submit a patch and let you know about it.
>> 
>> 
>> On Tue, Jun 8, 2010 at 4:24 PM, Erick Johnson <ejohnson82@gmail.com>wrote:
>> 
>>> Hi all,
>>> 
>>> I'm beginning to get familiar with the administrative functions of couchdb
>>> 0.11
>>> and had a question about rev limits and compaction.  In my testing it
>>> seems
>>> rev limits are being reset to the default 1000 after I run _compact, even
>>> though the wiki states otherwise:
>>> 
>>> "_revs_limit defines a upper bound of document revisions which CouchDB
>>> keeps track of, even after Compaction"
>>> 
>>> http://wiki.apache.org/couchdb/HTTP_database_API#Accessing_Database-specific_options
>>> 
>>> For instance if I run the following series of curl commands that create a
>>> new db,set the revs limit, get the revs limit, run compact, and get the revs
>>> limit again I see that the revs limit gets reset.
>>> 
>>> Searching jira for "_revs_limit" doesn't return any results,  so if anyone
>>> could shed any light on the subject for me I would greatly appreciate it.
>>> 
>>> Thank you,
>>> 
>>> Erick Johnson
>>> 
>>> curl and server logs follow....
>>> 
>>> $ curl -XPUT http://erick:foobar@127.0.0.40:5984/testing-compaction
>>> {"ok":true}
>>> $ curl -XPUT
>>> http://erick:foobar@127.0.0.40:5984/testing-compaction/_revs_limit -d
>>> "100"
>>> {"ok":true}
>>> $ curl http://erick:foobar@127.0.0.40:5984/testing-compaction/_revs_limit
>>> 100
>>> $ curl -XPOST
>>> http://erick:foobar@127.0.0.40:5984/testing-compaction/_compact
>>> {"ok":true}
>>> $ curl http://erick:foobar@127.0.0.40:5984/testing-compaction/_revs_limit
>>> 1000
>>> 
>>> The associated debug level server logs are as follows:
>>> 
>>> [debug] [<0.207.0>] 'PUT' /testing-compaction {1,1}
>>> Headers: [{'Accept',"*/*"},
>>>         {'Authorization',"Basic ZXJpY2s6Zm9vYmFy"},
>>>         {'Host',"127.0.0.40:5984"},
>>>         {'User-Agent',"curl/7.15.5 (x86_64-redhat-linux-gnu)
>>> libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5"}]
>>> [debug] [<0.207.0>] OAuth Params: []
>>> [info] [<0.207.0>] 127.0.0.40 - - 'PUT' /testing-compaction 201
>>> [debug] [<0.214.0>] 'PUT' /testing-compaction/_revs_limit {1,1}
>>> Headers: [{'Accept',"*/*"},
>>>         {'Authorization',"Basic ZXJpY2s6Zm9vYmFy"},
>>>         {'Content-Length',"3"},
>>>         {'Content-Type',"application/x-www-form-urlencoded"},
>>>         {'Host',"127.0.0.40:5984"},
>>>         {'User-Agent',"curl/7.15.5 (x86_64-redhat-linux-gnu)
>>> libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5"}]
>>> [debug] [<0.214.0>] OAuth Params: []
>>> [info] [<0.214.0>] 127.0.0.40 - - 'PUT' /testing-compaction/_revs_limit
>>> 200
>>> [debug] [<0.227.0>] 'GET' /testing-compaction/_revs_limit {1,1}
>>> Headers: [{'Accept',"*/*"},
>>>         {'Authorization',"Basic ZXJpY2s6Zm9vYmFy"},
>>>         {'Host',"127.0.0.40:5984"},
>>>         {'User-Agent',"curl/7.15.5 (x86_64-redhat-linux-gnu)
>>> libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5"}]
>>> [debug] [<0.227.0>] OAuth Params: []
>>> [info] [<0.227.0>] 127.0.0.40 - - 'GET' /testing-compaction/_revs_limit
>>> 200
>>> [debug] [<0.246.0>] 'POST' /testing-compaction/_compact {1,1}
>>> Headers: [{'Accept',"*/*"},
>>>         {'Authorization',"Basic ZXJpY2s6Zm9vYmFy"},
>>>         {'Host',"127.0.0.40:5984"},
>>>         {'User-Agent',"curl/7.15.5 (x86_64-redhat-linux-gnu)
>>> libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5"}]
>>> [debug] [<0.246.0>] OAuth Params: []
>>> [info] [<0.218.0>] Starting compaction for db "testing-compaction"
>>> [info] [<0.246.0>] 127.0.0.40 - - 'POST' /testing-compaction/_compact 202
>>> [debug] [<0.269.0>] Compaction process spawned for db "testing-compaction"
>>> [debug] [<0.80.0>] New task status for testing-compaction: Flushing
>>> [debug] [<0.218.0>] CouchDB swapping files
>>> /home/erick/local/var/lib/couchdb/testing-compaction.couch and
>>> /home/erick/local/var/lib/couchdb/testing-compaction.couch.compact.
>>> [info] [<0.218.0>] Compaction for db "testing-compaction" completed.
>>> [debug] [<0.268.0>] 'GET' /testing-compaction/_revs_limit {1,1}
>>> Headers: [{'Accept',"*/*"},
>>>         {'Authorization',"Basic ZXJpY2s6Zm9vYmFy"},
>>>         {'Host',"127.0.0.40:5984"},
>>>         {'User-Agent',"curl/7.15.5 (x86_64-redhat-linux-gnu)
>>> libcurl/7.15.5 OpenSSL/0.9.8b zlib/1.2.3 libidn/0.6.5"}]
>>> [debug] [<0.268.0>] OAuth Params: []
>>> [info] [<0.268.0>] 127.0.0.40 - - 'GET' /testing-compaction/_revs_limit
>>> 200
>>> 
>> 
>> 
>> 
>> --
>> Filipe David Manana,
>> fdmanana@gmail.com
>> 
>> "Reasonable men adapt themselves to the world.
>> Unreasonable men adapt the world to themselves.
>> That's why all progress depends on unreasonable men."
>> 
>> 
> 
> 
> -- 
> Filipe David Manana,
> fdmanana@gmail.com
> 
> "Reasonable men adapt themselves to the world.
> Unreasonable men adapt the world to themselves.
> That's why all progress depends on unreasonable men."


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