<div dir="ltr">Dear Ke;<br>due the type if our attachments which are JPEG files, don't hope compression to help me more! but I serious to test it ASAP. <br>it seems pretty to be able to compress Emails body on side DB engine.<br>
:-)<br> <br><br><div class="gmail_quote">On Wed, Oct 10, 2012 at 10:54 PM, <a href="mailto:ktm@rice.edu">ktm@rice.edu</a> <span dir="ltr"><<a href="mailto:ktm@rice.edu" target="_blank">ktm@rice.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Wed, Oct 10, 2012 at 10:36:22PM +0330, <a href="mailto:shayne.alone@gmail.com">shayne.alone@gmail.com</a> wrote:<br>
> Dears;<br>
><br>
> I have been face with a problem... after 3 years, out attachments table has<br>
> been grown over 300GB in size and it's about 15 Million of records.<br>
> for performance tuning I Ihad changes it's Table Engine into InnoDB and<br>
> configured MySQL as file_peer_table with Dynamic Row format to bring out<br>
> the BLOB data out of the caching space and reduction it's response time.<br>
><br>
> but I have always a question in my mine! why RT is storing this much<br>
> attached objects in BLOG fields?<br>
> why it dose not use a separate file system to store file on and just table<br>
> it links ( or auto generated name ) on DB?<br>
> in such a way, we will have some better ways to backup this much files...<br>
> -- features like snapshots on ZFS<br>
><br>
> --<br>
> Regards,<br>
> Ali R. Taleghani<br>
<br>
</div></div>Hi Ali,<br>
<br>
You can check the archives. There actually was a branch developed by<br>
Best Practical that moved the attachments into the filesystem. I believe<br>
the customer was motivated by performance needs. Certainly, keeping all<br>
of the information is a single DB is vastly easier to manage consistently.<br>
Once you get to the size of the DB that you are reaching, care and handling<br>
is a much different beast whether or not the data is in the DB or on a tied<br>
filesystem. You are certainly an inspiration using MySQL as the backend for<br>
an instance that large.<br>
<br>
Regards,<br>
Ken<br>
</blockquote></div><br><br clear="all"><br>-- <br><div dir="ltr"><span style="font-family:tahoma,sans-serif">Regards,</span><br style="font-family:tahoma,sans-serif"><span style="font-family:tahoma,sans-serif">Ali R. Taleghani</span><br style="font-family:tahoma,sans-serif">
</div><br>
</div>