Commit 7c962617 authored by Paul Rich's avatar Paul Rich
Browse files

Performance fixes to nodelist. Speeds things up by better than 10x

Mocked up by replicating node data in testing.
parent dd3b8d0d
......@@ -28,8 +28,34 @@ class CrayNode(ClusterNode):
self.ALPS_status = 'UNKNOWN' #Assume unknown state.
def to_dict(self):
return self.__dict__
def to_dict(self, cooked=False, params=None):
'''return a dictionary representation of a node. Used to send data to
clients/other components.
cooked - (default: False) If true, strip leading '_' characters from
variables. Useful for display applications (e.g. nodelist)
Dictionary representation of CrayNode fields.
The output can be sent via XMLRPC without modificaiton
ret_node = self.__dict__
if cooked:
cooked_node = {}
for key, val in self.__dict__.items():
if key.startswith('_'):
cooked_node[key[1:]] = val
cooked_node[key] = val
ret_node = cooked_node
if params is not None and cooked:
params = [p.lower() for p in params]
ret_node = {k:v for k, v in ret_node.items() if k.lower() in params}
return ret_node
def __str__(self):
return str(self.to_dict())
......@@ -5,6 +5,7 @@ import threading
import thread
import time
import xmlrpclib
import json
import Cobalt.Util
import Cobalt.Components.system.AlpsBridge as ALPSBridge
......@@ -226,37 +227,36 @@ class CraySystem(BaseSystem):
def get_nodes(self, as_dict=False, node_ids=None):
def get_nodes(self, as_dict=False, node_ids=None, params=None, as_json=False):
'''fetch the node dictionary.
node_ids - a list of node names to return, if None, return all nodes
(default None)
as_dict - Return node information as a dictionary keyed to string
node_id value.
node_ids - A list of node names to return, if None, return all nodes
(default None).
params - If requesting a dict, only request this list of
parameters of the node.
json - Encode to json before sending. Useful on large systems.
returns the node dictionary. Can reutrn underlying node data as
dictionary for XMLRPC purposes
def cook_node_dict(node):
'''strip leading '_' for display purposes'''
raw_node = node.to_dict()
cooked_node = {}
for key, val in raw_node.items():
if key.startswith('_'):
cooked_node[key[1:]] = val
cooked_node[key] = val
return cooked_node
if node_ids is None:
if as_dict:
return {k:cook_node_dict(v) for k, v in self.nodes.items()}
return self.nodes
def node_filter(node):
if node_ids is not None:
return (str(node[0]) in [str(nid) for nid in node_ids])
return True
node_info = None
if as_dict:
retdict = {k:v.to_dict(True, params) for k, v in self.nodes.items()}
node_info = dict(filter(node_filter, retdict.items()))
if as_dict:
return {k:cook_node_dict(v) for k, v in self.nodes.items() if int(k) in node_ids}
return {k:v for k,v in self.nodes.items() if int(k) in node_ids}
node_info = dict(filter(node_filter, self.nodes.items()))
if as_json:
return json.dumps(node_info)
return node_info
def _run_update_state(self):
'''automated node update functions on the update timer go here.'''
......@@ -16,6 +16,7 @@ import ConfigParser
import re
import logging
import time
import json
import Cobalt.Util
from Cobalt.Proxy import ComponentProxy
......@@ -1278,8 +1279,10 @@ def cluster_display_node_info():
def print_node_list():
'''fetch and print a list of node information with default headers'''
nodes = component_call(SYSMGR, False, 'get_nodes',
header = ['Node_id', 'Name', 'Queues', 'Status']
nodes = json.loads(component_call(SYSMGR, False, 'get_nodes',
(True, None, header, True)))
reservations = component_call(SCHMGR, False, 'get_reservations', ([{'queue':'*', 'partitions':'*', 'active':True}],))
res_queues = {}
for res in reservations:
......@@ -1291,7 +1294,6 @@ def print_node_list():
if len(nodes) > 0:
header = ['Node_id', 'Name', 'Queues', 'Status']
print_nodes = []
for node in nodes.values():
entry = []
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