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analyzer.py
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analyzer.py
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import datetime
import fnmatch
import logging
import re
import string
import shutil
import traceback
import os
import sys
import cluster_stats
import diskqueue_stats
import node_stats
import stats_buffer
import threshold
import prescription
import util_cli as util
from Cheetah.Template import Template
capsules = [
(node_stats.NodeCapsule, "node_stats", "NodeCapsule"),
(cluster_stats.ClusterCapsule, "cluster_stats", "ClusterCapsule"),
(diskqueue_stats.DiskQueueCapsule, "diskqueue_stats", "DiskQueueCapsule"),
]
globals = {
"versions" : "1.0",
"report_time" : datetime.datetime.now(),
"cluster_health" : "ok",
"scale" : "all",
}
TEMPLATE_FILE = "template.tmpl"
CHART_FILE = "chart.tmpl"
node_list = {}
bucket_list = {}
cluster_symptoms = {}
bucket_symptoms = {}
bucket_node_symptoms = {}
bucket_node_status = {}
node_symptoms = {}
indicator_error = {}
indicator_warn = {}
node_disparate = {}
sizing_symptoms = {}
class UtilTool:
def isdict(self, obj):
return isinstance(obj, dict)
def islist(self, obj):
return isinstance(obj, list)
def statsClass(self, status, hasOkStatus=True):
if status == "Error":
return ["status-error", "Immediate action needed"]
elif status == "Warning":
return ["status-warning", "Attention needed"]
else:
if hasOkStatus:
return ["status-ok", "OK"]
else:
return ["", "OK"]
def activeTab(self, tab):
if tab == globals["scale"]:
return "active"
else:
return ""
class StatsAnalyzer:
def __init__(self, log):
self.log = log
def init(self):
for bucket in stats_buffer.buckets.iterkeys():
bucket_type = stats_buffer.bucket_info[bucket]['bucketType']
bucket_list[bucket] = {"status":"OK", "type":bucket_type, "anchor":None}
bucket_symptoms[bucket] = []
bucket_node_symptoms[bucket] = {}
bucket_node_status[bucket] = {}
for node in stats_buffer.nodes.iterkeys():
node_list[node] = {}
sizing_symptoms[node] = {}
def run_analysis(self, scale):
self.init()
for capsule, package_name, capsule_name in capsules:
for pill in capsule:
self.log.debug(pill['name'])
for counter in pill['ingredients']:
try:
#eval_str = "{0}.{1}().run(counter, scale, threshold.{2})".format(package_name, counter['code'], capsule_name)
#print eval_str
result = eval("%s.%s().run(counter, scale, threshold.%s)" % (package_name, counter['code'], capsule_name))
self.log.debug(counter)
if pill.has_key("clusterwise") and pill["clusterwise"] :
if isinstance(result, dict):
if result.has_key("cluster"):
cluster_symptoms[counter["name"]] = {"description" : counter["description"], "value":result["cluster"]}
else:
cluster_symptoms[counter["name"]] = {"description" : counter["description"], "value":result}
else:
cluster_symptoms[counter["name"]] = {"description" : counter["description"], "value":result}
if counter.has_key("formula"):
cluster_symptoms[counter["name"]]["formula"] = counter["formula"]
else:
cluster_symptoms[counter["name"]]["formula"] = "N/A"
if pill.has_key("perBucket") and pill["perBucket"] :
for bucket, values in result.iteritems():
if bucket == "cluster" or bucket == "_sizing":
continue
bucket_status = "OK"
node_error = []
node_warn = []
for val in values:
if val[0] == "error":
bucket_status = "Error"
for node in val[1]:
node_error.append(node["node"])
break
if val[0] == "warn":
bucket_status = "Warning"
for node in val[1]:
node_warn.append(node["node"])
break
for val in values:
if val[0] == "variance" or val[0] == "error" or val[0] == "warn":
continue
elif val[0] == "total":
if counter.has_key("formula"):
bucket_symptoms[bucket].append({"description":counter["description"],
"value":val[1],
"status":bucket_status,
"formula":counter["formula"]})
else:
bucket_symptoms[bucket].append({"description":counter["description"],
"value":val[1],
"status":bucket_status,
"formula":"N/A"})
else:
if bucket_node_symptoms[bucket].has_key(val[0]) == False:
bucket_node_symptoms[bucket][val[0]] = []
counter_status = "OK"
if val[0] in node_warn:
counter_status = "Warning"
if val[0] in node_error:
counter_status = "Error"
if isinstance(val[1], dict) and val[1].has_key("counter"):
description = "%s - %s" % (counter["description"], val[1]["counter"])
else:
description = counter["description"]
if counter.has_key("formula"):
bucket_node_symptoms[bucket][val[0]].append({"description" : description,
"value" : val[1],
"status":counter_status,
"formula":counter["formula"]})
else:
bucket_node_symptoms[bucket][val[0]].append({"description" : description,
"value" : val[1],
"status":counter_status,
"formula":"N/A"})
if pill.has_key("perNode") and pill["perNode"] :
if counter.has_key("formula"):
node_symptoms[counter["name"]] = {"description" : counter["description"],
"value":result,
"formula":counter["formula"]}
else:
node_symptoms[counter["name"]] = {"description" : counter["description"], "value":result}
if pill.has_key("nodewise") and pill["nodewise"]:
for node, values in result.iteritems():
node_list[node] = {"description": counter["description"], "value": values}
if pill.has_key("sizing") and pill["sizing"]:
if result:
if result.has_key("_sizing"):
sizing_result = result["_sizing"]
else:
sizing_result = result
for node, value in sizing_result.iteritems():
if not sizing_symptoms[node].has_key(counter["category"]):
sizing_symptoms[node][counter["category"]] = []
withchart = False
if counter.has_key("chart"):
withchart = counter["chart"]
chart_id = "c_%s_%s" % (counter["name"], node)
if counter.has_key("unit"):
unit = counter["unit"]
else:
unit = ""
sizing_symptoms[node][counter["category"]].append(
{"description": counter["description"],
"unit": unit,
"value": value,
"category": counter["category"],
"chart": withchart,
"chart_id": re.sub('[.:]', '_', chart_id),
})
if pill.has_key("nodeDisparate") and pill["nodeDisparate"] :
for bucket,values in result.iteritems():
if bucket == "cluster" or bucket == "_sizing":
continue
for val in values:
if val[0] == "total":
continue;
if val[0] == "variance" and val[1] != 0:
node_disparate[counter["name"]] = {"description" : counter["description"], "bucket": bucket, "value":values}
if pill.has_key("indicator") and pill["indicator"]:
if len(result) > 0:
cause = impact = action = "To be defined"
try:
cause = prescription.Capsules[pill['name']]["cause"]
impact = prescription.Capsules[pill['name']]["impact"]
action = prescription.Capsules[pill['name']]["action"]
except Exception, e:
print e
for bucket,values in result.iteritems():
if type(values) is dict:
if values.has_key("error"):
if indicator_error.has_key(counter["name"]) == False:
indicator_error[counter["name"]] = []
if counter.has_key("formula"):
indicator_error[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":values["error"],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula" : counter["formula"],
})
else:
indicator_error[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":values["error"],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula": "N/A",
})
for val in values["error"]:
bucket_node_status[bucket][val["node"]] = "Error"
bucket_list[bucket]["status"] = "Error"
bucket_list[bucket]["anchor"] = "counter_%s_%s_%s" % (bucket, val["node"], counter["name"])
if values.has_key("warn"):
if indicator_warn.has_key(counter["name"]) == False:
indicator_warn[counter["name"]] = []
if counter.has_key("formula"):
indicator_warn[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":values["warn"],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula" : counter["formula"],
})
else:
indicator_warn[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":values["warn"],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula": "N/A",
})
for node in values["warn"]:
node_val = None
if type(node) is dict:
node_val = node["node"]
else:
node_val = node[0]
if bucket_node_status[bucket].has_key(node_val) == False:
bucket_node_status[bucket][node_val] = "Warning"
if bucket_list[bucket]["status"] == "OK":
bucket_list[bucket]["status"] = "Warning"
bucket_list[bucket]["anchor"] = "counter_%s_%s_%s" % (bucket, node_val, counter["name"])
elif type(values) is list:
for val in values:
if val[0] == "error":
if indicator_error.has_key(counter["name"]) == False:
indicator_error[counter["name"]] = []
if counter.has_key("formula"):
indicator_error[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":val[1],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula": counter["formula"],
})
else:
indicator_error[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":val[1],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula" : "N/A",
})
for node in val[1]:
bucket_node_status[bucket][node["node"]] = "Error"
bucket_list[bucket]["status"] = "Error"
bucket_list[bucket]["anchor"] = "counter_%s_%s_%s" % (bucket, node["node"], counter["name"])
elif val[0] == "warn":
if indicator_warn.has_key(counter["name"]) == False:
indicator_warn[counter["name"]] = []
if counter.has_key("formula"):
indicator_warn[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":val[1],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula": counter["formula"],
})
else:
indicator_warn[counter["name"]].append({"description" : counter["description"],
"bucket": bucket,
"value":val[1],
"cause" : cause,
"impact" : impact,
"action" : action,
"formula" : "N/A",
})
for node in val[1]:
if bucket_node_status[bucket].has_key(node["node"]) == False:
bucket_node_status[bucket][node["node"]] = "Warning"
if bucket_list[bucket]["status"] == "OK":
bucket_list[bucket]["status"] = "Warning"
bucket_list[bucket]["anchor"] = "counter_%s_%s_%s" % (bucket, node["node"], counter["name"])
except Exception, err:
self.log.error("Exception launched when processing counter: %s" % counter["name"])
traceback.print_exc()
if len(indicator_error) > 0:
globals["cluster_health"] = "Error"
elif len(indicator_warn) > 0:
globals["cluster_health"] = "Warning"
else:
globals["cluster_health"] = "OK"
def run_report(self, verbose, scale_set, scale, debug, output_dir):
reports_dir = os.path.join(os.path.dirname(sys.argv[0]), 'reports')
txtfile = os.path.join(output_dir, scale + ".txt")
htmlfile = os.path.join(output_dir, scale + ".html")
dict = {
"util": UtilTool(),
"globals" : globals,
"cluster_symptoms" : cluster_symptoms,
"bucket_symptoms" : bucket_symptoms,
"bucket_node_symptoms" : bucket_node_symptoms,
"bucket_node_status" : bucket_node_status,
"node_symptoms" : node_symptoms,
"sizing_symptoms": sizing_symptoms,
"node_list" : node_list,
"bucket_list" : bucket_list,
"indicator_warn" : indicator_warn,
"indicator_warn_exist" : len(indicator_warn) > 0,
"indicator_error" : indicator_error,
"indicator_error_exist" : len(indicator_error) > 0,
"verbose" : verbose,
"scale_set" : scale_set,
"debug" : debug,
"sizing": None,
}
globals["scale"] = scale
# read the current version number
for fname in [os.path.join(os.path.dirname(sys.argv[0]), '..', '..', 'VERSION.txt'), \
os.path.join(os.path.dirname(sys.argv[0]), '..', 'VERSION.txt'), \
os.path.join(os.path.dirname(sys.argv[0]), 'VERSION.txt')]:
try:
f = open(fname, 'r')
globals["versions"] = string.strip(f.read())
f.close()
except Exception:
pass
f = open(txtfile, 'w')
report = {}
report["Report Time"] = globals["report_time"].strftime("%Y-%m-%d %H:%M:%S")
report["Nodelist Overview"] = node_list
report["Sizing Report"] = sizing_symptoms
report["Cluster Overview"] = cluster_symptoms
report["Bucket Metrics"] = bucket_symptoms
report["Bucket Node Metrics"] = bucket_node_symptoms
report["Key indicators"] = (indicator_error, indicator_warn)
report["Node disparate"] = node_disparate
print >> f, util.pretty_print(report)
f.close()
#print util.pretty_print(bucket_node_symptoms)
f = open(htmlfile, 'w')
print >> f, Template(file=os.path.join(reports_dir, TEMPLATE_FILE), searchList=[dict])
f.close()
#generate charts if any
for node in node_list:
for category, values in sizing_symptoms[node].iteritems():
for sizing in values:
if sizing["chart"]:
dict["sizing"] = sizing
htmlfile = os.path.join(output_dir, sizing["chart_id"] + ".html")
f = open(htmlfile, "w")
print >> f, Template(file=os.path.join(reports_dir, CHART_FILE), searchList=[dict])
f.close()
# generate array/list of available reports for use via AJAX
available_reports = [os.path.splitext(n)[0]
for n in fnmatch.filter(os.listdir('./reports/'),
'*.html')]
f = open(os.path.join(output_dir, 'all.json'), 'w')
print >> f, util.pretty_print(available_reports)
f.close()
#Need to copy support files for final report
normalize_report_dir = os.path.normpath(reports_dir)
normalize_output_dir = os.path.normpath(os.path.dirname(output_dir))
if normalize_output_dir != normalize_report_dir:
for item in os.listdir(normalize_report_dir):
if not item in [TEMPLATE_FILE, CHART_FILE]:
s = os.path.join(normalize_report_dir, item)
d = os.path.join(normalize_output_dir, item)
try:
if os.path.isfile(s):
shutil.copy2(s, d)
else:
shutil.copytree(s, d)
except Exception:
pass
sys.stderr.write("\nThe run finished successfully. \nPlease find html output at '%s' and text output at '%s'.\n" % \
(htmlfile, txtfile))