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Date: Mon, 3 Aug 2009 12:48:08 -0500
Message-ID: <e06563880908031048w51ebc0a4k2e33447c054056ec@mail.gmail.com>
Subject: Re: MVCC
From: Jonathan Ellis <jbellis@gmail.com>
To: cassandra-user@incubator.apache.org
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It's not moderated (click the login link to get to a signup form).
Changes are sent to the -commits list where anyone interested (like me
:) can review them.

-Jonathan

P.S. sorry for the signup captcha questions -- someone apparently
thought they were cute, but they typically take a bit of googling to
answer.  Not our fault! :)

On Mon, Aug 3, 2009 at 12:43 PM, Mark McBride<mark.mcbride@gmail.com> wrote=
:
> Cool. =A0There are a few things I've found out recently that should
> probably go into the wiki (this, the fact that get_columns_since
> silently returns no results if your column family isn't ordered by
> time)... is it moderated at all? =A0Should I run changes by the mailing
> list?
>
> On Mon, Aug 3, 2009 at 10:15 AM, Jonathan Ellis<jbellis@gmail.com> wrote:
>> On Mon, Aug 3, 2009 at 12:12 PM, Mark McBride<mark.mcbride@gmail.com> wr=
ote:
>>> Thanks, that makes sense. =A0Is it an ok general rule that the
>>> timestamps should be set to
>>>
>>> 1) The time that the data to be mutated was generated
>>> 2) The current system time if the time the data was mutated isn't avail=
able
>>
>> Yes.
>>
>>> Looking around at code it seems like time 0 is used a lot, which seems
>>> pretty dangerous.
>>
>> We do this in test code to make it obviously clock-independent, yes.
>>
>> -Jonathan
>>
>