On 13-04-11 07:37 AM, Brian J. Murrell wrote: > > In exploring all options, how about pcs? Does pcs' "resource create > ..." for example have the same read+modify+replace problem as crm > configure or does pcs resource create also only send proper fragments to > update just the part of the CIB it's operating on?
Having just cracked pcs open, it doesn't seem to. It seems to create an XML string which it then applies to the CIB with: cibadmin -o resources -C -X $xml_resource_string IIUC, that is compatible with my use-case of multiple nodes in the cluster creating resources concurrently and not having last-write-wins problems, correct? Usually the multiple nodes are creating separate resources and in any case where multiple nodes are creating the same resource (or adjusting some global parameter), it's configuration is the same from all writers so last-write-wins there doesn't matter, yes? Cheers, b.
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