Subject: Grouper Users - Open Discussion List
RE: [grouper-users] does grouper write to its database at startup?
- From: Chris Hyzer <>
- To: Hans Zandbelt <>, "" <>
- Cc: "" <>
- Subject: RE: [grouper-users] does grouper write to its database at startup?
- Date: Wed, 4 Nov 2009 08:36:34 -0500
- Accept-language: en-US
- Acceptlanguage: en-US
We haven't been trying not to write to the DB, so its probably safer to do a
cold standby. However, if you don't have anything automatically creating
objects in the grouper.properties:
Then I cant think of anything that would write to the DB, though again we
don't have a contract for this... :) If it is important for you, we could
discuss this at the next dev call next week.
> -----Original Message-----
> From: Hans Zandbelt
> Sent: Wednesday, November 04, 2009 4:09 AM
> Subject: [grouper-users] does grouper write to its database at startup?
> We are creating a failover setup for our grouper service by
> setting up a "hot standby" grouper (failover/slave) server instance
> next to the running grouper master instance.
> The database of the failover instance in this setup is replicated
> from the master instance and should not be written to by until the
> server is promoted to master in case of failure.
> My question is: does any of the grouper components (cq. the
> grouper-ws, grouper-api or grouper GUI) write to its database
> at startup time, ie. before any "external" interaction takes place?
> If it does not do so, we can indeed ensure a fast failover by having a
> "hot standby" Grouper instance. If it does, we would have to change
> our setup to a "cold standby",
> Hans Zandbelt
> SURFnet http://www.surfnet.nl
- does grouper write to its database at startup?, Hans Zandbelt, 11/04/2009
- RE: [grouper-users] does grouper write to its database at startup?, Chris Hyzer, 11/04/2009
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