remove "maint" and "drain" nodes which are inaccessible to the user (#916)

* remove maint and drain nodes which are inaccessible to the user

* remove hanging ')'

Author: kwkoepcke3

lib/ood_core/job/adapters/slurm.rb

@@ -123,8 +123,8 @@ def initialize(cluster: nil, bin: nil, conf: nil, bin_overrides: {}, submit_host
           def get_cluster_info
             node_cpu_info = call("sinfo", "-aho %A/%D/%C").strip.split('/')
             gres_length = call("sinfo", "-o %G").lines.map(&:strip).map(&:length).max + 2
-            gres_lines = call("sinfo", "-ahNO ,nodehost,gres:#{gres_length},gresused:#{gres_length}")
-                         .lines.uniq.map(&:split)
+            gres_lines = call("sinfo", "-ahNO ,nodehost,gres:#{gres_length},gresused:#{gres_length},statelong")
+                         .lines.uniq.reject { |line| line.match?(/maint|drain/i) }.map(&:split)
             ClusterInfo.new(active_nodes: node_cpu_info[0].to_i,
                             total_nodes: node_cpu_info[2].to_i,
                             active_processors: node_cpu_info[3].to_i,