Re: [Openstack] Question on wsgi rate limiting

2012-03-30 Thread Jay Pipes
You make some good points about what is the appropriate level in the stack to do rate shaping, but I would just like to have a configurable, manageable and monitorable ratelimit/quota solution that doesn't seem like a giant hack :) Baby steps. -jay On 03/30/2012 01:23 PM, Caitlin Bestler

Re: [Openstack] Question on wsgi rate limiting

2012-03-30 Thread andi abes
Caitlin, I'm curious what were the use cases and concerns in DCB? If my memory serves me right (from rate limiting at L2 level) the main issues are guaranteeing QoS, effective bandwidth usage, fair allocation of memory buffer space. All of those goals damaged pretty badly if congestion occurs and

Re: [Openstack] Question on wsgi rate limiting

2012-03-30 Thread Caitlin Bestler
Caitlin Replies inline /Caitlin -Original Message- From: andi abes [mailto:andi.a...@gmail.com] Sent: Friday, March 30, 2012 11:32 AM To: Jay Pipes; Caitlin Bestler Cc: openstack@lists.launchpad.net Subject: Re: [Openstack] Question on wsgi rate limiting Caitlin, I'm curious what were

Re: [Openstack] Question on wsgi rate limiting

2012-03-30 Thread andi abes
; Caitlin Bestler Cc: openstack@lists.launchpad.net Subject: Re: [Openstack] Question on wsgi rate limiting Caitlin, I'm curious what were the use cases and concerns in DCB? If my memory serves me right (from rate limiting at L2 level) the main issues are guaranteeing QoS, effective bandwidth

Re: [Openstack] Question on wsgi rate limiting

2012-03-30 Thread Caitlin Bestler
-Original Message- From: andi abes [mailto:andi.a...@gmail.com] Sent: Friday, March 30, 2012 12:12 PM To: Caitlin Bestler Cc: Jay Pipes; openstack@lists.launchpad.net Subject: Re: [Openstack] Question on wsgi rate limiting Caitlin, alas, you missed my point. The intent of rate

Re: [Openstack] Question on wsgi rate limiting

2012-03-30 Thread David Goetz
, March 30, 2012 11:32 AM To: Jay Pipes; Caitlin Bestler Cc: openstack@lists.launchpad.net Subject: Re: [Openstack] Question on wsgi rate limiting Caitlin, I'm curious what were the use cases and concerns in DCB? If my memory serves me right (from rate limiting at L2 level) the main issues