- when (optShowNodes opts) $
- do
- putStrLn "Initial cluster status:"
- putStrLn $ Cluster.printNodes ktn nl
-
- let ini_cv = Cluster.compCV nl
- ini_tbl = Cluster.Table nl il ini_cv []
- min_cv = optMinScore opts
-
- when (ini_cv < min_cv) $ do
- (if oneline then
- putStrLn $ formatOneline ini_cv 0 ini_cv
- else printf "Cluster is already well balanced (initial score %.6g,\n\
- \minimum score %.6g).\nNothing to do, exiting\n"
- ini_cv min_cv)
- exitWith ExitSuccess
-
- unless oneline (if verbose > 2 then
- printf "Initial coefficients: overall %.8f, %s\n"
- ini_cv (Cluster.printStats nl)
- else
- printf "Initial score: %.8f\n" ini_cv)
-
- unless oneline $ putStrLn "Trying to minimize the CV..."
- let mlen_fn = maximum . (map length) . snd . unzip
- imlen = mlen_fn kti
- nmlen = mlen_fn ktn
-
- (fin_tbl, cmd_strs) <- iterateDepth ini_tbl (optMaxLength opts)
- ktn kti nmlen imlen [] oneline min_cv
- let (Cluster.Table fin_nl _ fin_cv fin_plc) = fin_tbl
- ord_plc = reverse fin_plc
- sol_msg = if null fin_plc
- then printf "No solution found\n"
- else (if verbose > 2
- then printf "Final coefficients: overall %.8f, %s\n"
- fin_cv (Cluster.printStats fin_nl)
- else printf "Cluster score improved from %.8f to %.8f\n"
- ini_cv fin_cv
- )
-
- unless oneline $ putStr sol_msg
-
- unless (oneline || verbose == 0) $
- printf "Solution length=%d\n" (length ord_plc)
-
- let cmd_data = Cluster.formatCmds . reverse $ cmd_strs
-
- when (isJust $ optShowCmds opts) $
- do
- let out_path = fromJust $ optShowCmds opts
- putStrLn ""
- (if out_path == "-" then
- printf "Commands to run to reach the above solution:\n%s"
- (unlines . map (" " ++) .
- filter (/= "check") .
- lines $ cmd_data)
- else do
- writeFile out_path (CLI.shTemplate ++ cmd_data)
- printf "The commands have been written to file '%s'\n" out_path)
-
- when (optShowNodes opts) $
- do
- let (orig_mem, orig_disk) = Cluster.totalResources nl
- (final_mem, final_disk) = Cluster.totalResources fin_nl
- putStrLn ""
- putStrLn "Final cluster status:"
- putStrLn $ Cluster.printNodes ktn fin_nl
- when (verbose > 3) $
- do
- printf "Original: mem=%d disk=%d\n" orig_mem orig_disk
- printf "Final: mem=%d disk=%d\n" final_mem final_disk
- when oneline $
- putStrLn $ formatOneline ini_cv (length ord_plc) fin_cv
--}
+ let sols = processRequest request >>= processResults rq
+ let (ok, info, rn) =
+ case sols of
+ Ok as -> (True, "Request successful: " ++
+ intercalate ", " (Cluster.asLog as),
+ Cluster.asSolutions as)
+ Bad s -> (False, "Request failed: " ++ s, [])
+ resp = formatResponse ok info rq rn
+ putStrLn resp