[47485] in SIPB-AFS-requests
sipb cell AFS server tuning
daemon@ATHENA.MIT.EDU (Jonathon Weiss)
Tue Jun 18 09:28:56 2013
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From: Jonathon Weiss <jweiss@MIT.EDU>
To: sipb-afsreq@mit.edu
Subject: sipb cell AFS server tuning
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Date: Tue, 18 Jun 2013 09:28:45 -0400
Sender: jweiss@MIT.EDU
I just noticed a few things about the sipb AFS cell.
* it looks like the fileserver is using the arguments that ops
selected for the athena cell years ago.
* ops recently changed those to increas the number of threads
("-p 36" --> "-p 64") and the number of callback slots ("" -->
"-cb 256000"), and there are indications that the sipb cell
would benefit from at least the second of these (and possibly
the first, but that's less clear).
* the sipb cell still restarts weekly. The athena cell hasn't
done this in a long time.
I'd like to see us update both fileserver arguments, and disable the
weekly restart. That said, I don't want to interfere with the server
upgrades Mitch and Ben are working on. Do folks agree in concept with
these changes, and if so, have any thoughts on coordinateion? (I could
certainly stageteh arg changes in BosConfig let one last weekly restart
happen, and then disable that.)
Jonathon
