Hi, This is mainly a question for Christian, but I'm cc'ing the list as it will be useful knowledge to be generally available. I was looking at this product and thinking about using it in an upcoming assignment.
From the docs: "Keep backups of your data. ZEORaid has good unit test coverage but hasn't seen live action yet, so keep this in mind." - is this still the case?
Is anyone else using it at the moment at all for demanding sites? Could you post some stats, experiences and any gotchas at all? How does ZeoRAID cope with the blob storage? Also, what's the timeout for connecting to the zeo storages? Also, I read this bit in the docs: "The RAID server itself remains the last single point of failure in the system. This problem is solved as the RAID server does not maintain any persistent state (except the configuration data: it's listening ip and port and the list of storages). The RAID server can be made reliable by providing a hot-spare server using existing HA tools (taking over the IP when a host goes down) and the existing ZEO ClientStorage behaviour." Is it possible to provide a "pool" of ZeoRAID processes, each talking to the same zeo storages, and put the list of ZeoRAID processes into the client storage configuration so it will round-robin if one is not available? Many thanks for your help, Miles
Miles Waller wrote:
From the docs: "Keep backups of your data. ZEORaid has good unit test coverage but hasn't seen live action yet, so keep this in mind." - is this still the case?
Yep, and Christian has expressed the need for further development to solve some bugs, although I don't have details of those bugs to hand.
Is it possible to provide a "pool" of ZeoRAID processes, each talking to the same zeo storages, and put the list of ZeoRAID processes into the client storage configuration so it will round-robin if one is not available?
I believe this is one of the areas where there are still bugs ;-) It's this configuration that I'd like to roll out, but it's a hard sell to a customer to be punting a HA solution that needs further development before it's stable. cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk
participants (2)
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Chris Withers -
Miles Waller