Add a log message describing the active processes using a mount point…

… during unmounting

cookbooks/aws-parallelcluster-environment/resources/efs/partial/_mount_umount.rb

@@ -101,6 +101,14 @@
     # Path needs to be fully qualified, for example "shared/temp" becomes "/shared/temp"
     efs_shared_dir = "/#{efs_shared_dir}" unless efs_shared_dir.start_with?('/')
     # Unmount EFS
+    Chef::Log.info("Unmounting #{efs_shared_dir} with the following")
+    execute "active processes" do
+      retries 3
+      retry_delay 3
+      timeout 10
+      live_stream true
+      command "fuser -mv #{efs_shared_dir}"
+    end
     execute 'unmount efs' do
       command "umount -fl #{efs_shared_dir}"
       retries 10

cookbooks/aws-parallelcluster-environment/resources/lustre/partial/_mount_unmount.rb

@@ -71,7 +71,14 @@
   return if on_docker?
   new_resource.fsx_fs_id_array.dup.each_with_index do |_fsx_fs_id, index|
     fsx = FSx.new(node, new_resource, index)
-
+    Chef::Log.info("Unmounting #{fsx.shared_dir} with the following")
+    execute "active processes" do
+      retries 3
+      retry_delay 3
+      timeout 10
+      live_stream true
+      command "fuser -mv #{fsx.shared_dir}"
+    end
     execute "unmount fsx #{fsx.shared_dir}" do
       command "umount -fl #{fsx.shared_dir}"
       retries 10

cookbooks/aws-parallelcluster-environment/resources/volume.rb

@@ -94,7 +94,14 @@
 
 action :unmount do
   shared_dir = format_directory(new_resource.shared_dir)
-
+  Chef::Log.info("Unmounting #{shared_dir} with the following")
+  execute "active processes" do
+    retries 3
+    retry_delay 3
+    timeout 10
+    live_stream true
+    command "fuser -mv #{shared_dir}"
+  end
   # TODO: can we use mount resource to unmount and disable (see raid)
   execute "unmount volume #{shared_dir}" do
     command "umount -fl #{shared_dir}"