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Message from discussion How to reduce redis io usage
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Greg Andrews  
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 More options Sep 30 2012, 7:43 pm
From: Greg Andrews <hvar...@gmail.com>
Date: Sun, 30 Sep 2012 16:43:29 -0700
Local: Sun, Sep 30 2012 7:43 pm
Subject: Re: How to reduce redis io usage
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Wow, the copy to disk on the slave side is a new one to me.  Maybe that's
how recent versions prevent the slave from blocking all querys during the
SYNC.

  -Greg

On Sun, Sep 30, 2012 at 4:38 PM, Matthew Palmer <mpal...@hezmatt.org> wrote:
> On Sun, Sep 30, 2012 at 04:29:50PM -0700, Greg Andrews wrote:
> > Dvir, I haven't kept up-to-date on this particular behavior with versions
> > after 2.2.x.  Does a Redis instance with persistence disabled still
> perform
> > a AOF creation and write when a slave is attached and sends the SYNC
> > command?

> It's an RDB, but yes, connecting a slave triggers an RDB creation on the
> master, and that RDB will be copied to disk on the slave before being
> loaded into memory.

> http://redis.io/topics/replication

> - Matt

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