From: Josh Durgin <josh.durgin@dreamhost.com>
To: huang jun <hjwsm1989@gmail.com>
Cc: ceph-devel <ceph-devel@vger.kernel.org>
Subject: Re: workload balance
Date: Mon, 27 Jun 2011 14:06:45 -0700 [thread overview]
Message-ID: <4E08F0E5.4080501@dreamhost.com> (raw)
In-Reply-To: <BANLkTikHkttLd6vMeZxVm4FNeGJ+-E9uTg@mail.gmail.com>
On 06/27/2011 02:34 AM, huang jun wrote:
> hi，all
> Here is a problem confused me a lot. Some OSD's workload will be very high
> when the client read a file continuously. So i think the cluster must
> have a strategy to balance workload
> there are two classes "MovingAverager and IATAverager ",but i can not
> figure out what the class IATAverager mean here?
> and futhermore, can we bring tiered storage theory in ceph?
>
> thanks!
Those classes were attempts to use some statistics to discard some
reads, but they did not work so they've been removed from master.
Our current strategy is simply striping files across objects.
Josh
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next prev parent reply other threads:[~2011-06-27 21:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-27 9:34 workload balance huang jun
2011-06-27 21:06 ` Josh Durgin [this message]
2011-06-28 0:25 ` huang jun
2011-06-30 18:04 ` Josh Durgin
2011-07-01 0:13 ` huang jun
2011-07-17 10:31 ` srimugunthan dhandapani
2011-07-19 14:39 ` Sage Weil
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