Re: [Nova-orchestration] Row-level db locking vs. ZooKeeper ...

2011-11-23 Thread Andrew Beekhof
Out of curiosity, what does zookeeper use for inter-node communications? How big can it scale? On Wed, Nov 9, 2011 at 1:35 AM, Yun Mao wrote: > Row-level db locking is an internal mechanism for database to > implement ACID transactions. It's not supposed to be exposed to users > and implementatio

Re: [Nova-orchestration] task parallelism in nova

2011-11-23 Thread Andrew Beekhof
On Thu, Nov 24, 2011 at 4:07 AM, Sandy Walsh wrote: > Each provisioning operation is generally sequential (and perhaps even > preferred to be for debugging). The only real parallel activity is, as you > mentioned, creating many instances or mass migration/resize/backup/etc. It also seems implic

Re: [Nova-orchestration] "Orchestration" ... naming

2011-11-23 Thread Andrew Beekhof
On Thu, Nov 24, 2011 at 6:14 AM, Michael Pittaro wrote: > 'Request Manager' is growing on meI think it describes the > externally visible function without all the confusion around > orchestration, and doesn't imply any specific implementation details. "Event Manager"? Since not everything it

Re: [Nova-orchestration] "Orchestration" ... naming

2011-11-23 Thread Michael Pittaro
'Request Manager' is growing on meI think it describes the externally visible function without all the confusion around orchestration, and doesn't imply any specific implementation details. mike On Wed, Nov 23, 2011 at 9:24 AM, Gary Kotton wrote: > Hi, > How about:- YAO - "Yet another orches

Re: [Nova-orchestration] No Meeting this Thursday

2011-11-23 Thread Sandy Walsh
Uh, with US Thanksgiving it seems we'll be delaying this weeks meeting until next week again. That said, Jesse, comstud and myself met this week to talk about some tactical plans for the orchestration and scaling efforts. We're going to write this up for feedback next week. Stay tuned! -S __

Re: [Nova-orchestration] "Orchestration" ... naming

2011-11-23 Thread Gary Kotton
Hi, How about:- YAO - "Yet another orchestrator" I also like YASM Thanks Gary -Original Message- From: nova-orchestration-bounces+garyk=radware@lists.launchpad.net [mailto:nova-orchestration-bounces+garyk=radware@lists.launchpad.net ] On Behalf Of Day, Phil Sent: Wednesday, Novembe

Re: [Nova-orchestration] "Orchestration" ... naming

2011-11-23 Thread Day, Phil
I know - sometimes I think all the good names are already taken ;-) Maybe we should go with "YASM - yet another state manager", or "Request Manager" ? Phil -Original Message- From: Sandy Walsh [mailto:sandy.wa...@rackspace.com] Sent: 23 November 2011 17:10 To: Day, Phil; nova-orchestra

Re: [Nova-orchestration] "Orchestration" ... naming

2011-11-23 Thread Sandy Walsh
heh, when I hear Transaction Management I think databases, but I see your point about State Management too. I'm comfortable with either. -S From: Day, Phil [philip@hp.com] Sent: Tuesday, November 22, 2011 2:00 PM To: Sandy Walsh; nova-orchestration@l

Re: [Nova-orchestration] task parallelism in nova

2011-11-23 Thread Sandy Walsh
Each provisioning operation is generally sequential (and perhaps even preferred to be for debugging). The only real parallel activity is, as you mentioned, creating many instances or mass migration/resize/backup/etc. -S From: nova-orchestration-bounces+s

Re: [Nova-orchestration] task parallelism in nova

2011-11-23 Thread Gary Kotton
Hi, I think that this is also applicable for the management of many instance - for example, shutdown, reboot, snapshots etc. VMware has a feature called VMotion. Does OpenStack have an equivalent? If so this too should be added to the list above. Thanks Gary -Original Message- From: nova-

[Nova-orchestration] task parallelism in nova

2011-11-23 Thread Yun Mao
What's the use cases to run tasks in parallel? One that's quite obvious is to create many instances. The task to create a single instance seems quite sequential to me. Do we have other use cases? Is there a more complicated one, such as requiring parallel tasks to communicate? Thanks, Yun -- Mai