Prepended some commands with nice at Ron Bosworth's request, to reduce CPU...

Prepended some commands with nice at Ron Bosworth's request, to reduce CPU impact on the synchrotron side.

asci_to_vault.py

@@ -105,7 +105,7 @@ def send_directory(node, remote_login, src_path):
     # Check if there are any files in the node.
     with Connection(remote_login) as c:
         files = c.run(
-            rf"cd {node.src}; find -maxdepth 1 -type f -printf '%f\n'",
+            rf"cd {node.src}; nice find -maxdepth 1 -type f -printf '%f\n'",
             echo=True
         )
         files = files.stdout.strip()
@@ -135,7 +135,7 @@ def send_directory(node, remote_login, src_path):
 
         output = subprocess.run(
             f"ssh {remote_login} 'cd {node.src};"
-            f"find -maxdepth 1 -type f -print0 |"
+            f"nice find -maxdepth 1 -type f -print0 |"
             f"cpio -o -H ustar -0' | cat > {node.dest}/{filename}.tar",
             shell=True,
             check=True

md5_to_vault.py

@@ -102,7 +102,7 @@ def send_checksum(node, remote_login, src_path):
             filename = node.src.replace(src_path+'/', '').replace('/', '_')
 
         output = subprocess.run(
-            f"ssh {remote_login} 'cd {node.src}; md5sum *'"
+            f"ssh {remote_login} 'cd {node.src}; nice md5sum *'"
             f"| cat > {node.dest}/{filename}.md5",
             shell=True,
             check=True