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Date: Wed, 20 Nov 2013 22:36:34 +0000
Message-ID: 
 <CABvT1DGw0Y5VBGj6zV3M0HN6MCRhB_dT9dcueA_F-JO2J2oshA@mail.gmail.com>
Subject: Re: Considering CouchDB
From: Robert Newson <rnewson@apache.org>
To: "user@couchdb.apache.org" <user@couchdb.apache.org>
Content-Type: text/plain; charset=ISO-8859-1

True, but remember couchdb doesn't automatically keep indexes fresh in
the background, so "stale" can be "really really stale". ;)

B.


On 20 November 2013 22:34, Simon Metson <simon@cloudant.com> wrote:
> Unless your app can deal with querying the view stale.
>
>
> On Wednesday, 20 November 2013 at 21:56, Mark Hahn wrote:
>
>> I meant http view requests were blocked. It is waiting for the view
>> rebuild.
>>
>> I'm can't type what I'm thinking today.
>>
>>
>> On Wed, Nov 20, 2013 at 1:54 PM, Mark Hahn <mark@reevuit.com> wrote:
>>
>> > never mind. I wasn't talking about the file level at all. I meant that
>> > http read requests are blocked after http update requests.
>> >
>> >
>> > On Wed, Nov 20, 2013 at 1:52 PM, Robert Newson <rnewson@apache.org> wrote:
>> >
>> > > "DB reads are blocked by DB updates at the http level."
>> > >
>> > > Nope, there's a process that can read the database and a separate one
>> > > for writing to it. Writing to an append only file is obviously
>> > > serialized but there's no need to block reads.
>> > >
>> > > B.
>> > >
>> > >
>> > > On 20 November 2013 21:35, Mark Hahn <mark@reevuit.com> wrote:
>> > > > > Database writes are not coupled to view updates.
>> > > >
>> > > >
>> > > > I understand now, you are talking about file read/write level. DB reads
>> > > > are blocked by DB updates at the http level.
>> > > >
>> > > >
>> > > > On Wed, Nov 20, 2013 at 1:05 PM, Robert Newson <robert.newson@gmail.com
>> > > > wrote:
>> > > >
>> > > > > "A write requires updating views and reads have to wait for the update"
>> > > > >
>> > > > > Is not true. Database writes are not coupled to view updates.
>> > > > >
>> > > > > Sent from my iPad
>> > > > >
>> > > > > > On 20 Nov 2013, at 20:59, Mark Hahn <mark@reevuit.com> wrote:
>> > > > > >
>> > > > > > A write requires updating views and reads have
>> > > > > > to wait for the update
>> > > > > >
>> > > > >
>> > > > >
>> > > >
>> > > >
>> > >
>> > >
>> >
>> >
>>
>>
>>
>
>