[sr-dev] git:master: db_cluster: new module for generic database clustering

in order to avoid repeatedly trying dead cluster connection, how about the following: - define by cluster module param the default order in which connections with same priority are tried - if first connection in the list fails, move that connection to the end of the list advantage would be that there is no need to periodically (by counting or timer) re-try dead connection. default order could be taken from the order in which connections having the same priority are listed in cluster param value. comments? -- juha