def run(self, accessor):
result = {}
start_cluster = 0
end_cluster = 0
for bucket, stats_info in stats_buffer.buckets.iteritems():
trend = []
values = stats_info[accessor["scale"]][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
for node, vals in nodeStats.iteritems():
a, b = util.linreg(timestamps, vals)
if b < 1:
trend.append((node, 0))
else:
start_val = b
start_cluster += b
end_val = a * timestamps[-1] + b
end_cluster += end_val
rate = (end_val * 1.0 / b - 1.0) * 100
trend.append((node, util.pretty_float(rate) + "%"))
result[bucket] = trend
if len(stats_buffer.buckets) > 0:
rate = (end_cluster * 1.0 / start_cluster - 1.0) * 100
result["cluster"] = util.pretty_float(rate) + "%"
return result
def run(self, accessor, scale, threshold=None):
result = {}
if threshold.has_key("DiskQueueDiagnosis"):
threshold_val = threshold["DiskQueueDiagnosis"][accessor["name"]]
else:
threshold_val = accessor["threshold"]
for bucket, stats_info in stats_buffer.buckets.iteritems():
trend_error = []
trend_warn = []
res = []
values = stats_info[scale][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
for node, vals in nodeStats.iteritems():
a, b = util.linreg(timestamps, vals)
if a > threshold_val["high"]:
symptom = accessor["symptom"] % (util.pretty_float(a, 3), threshold_val["high"])
trend_error.append({"node":node, "level":"red", "value":symptom})
res.append((node, util.pretty_float(a)))
elif a > threshold_val["low"]:
symptom = accessor["symptom"] % (util.pretty_float(a, 3), threshold_val["low"])
trend_warn.append({"node":node, "level":"yellow", "value":symptom})
res.append((node, util.pretty_float(a)))
if len(trend_error) > 0:
res.append(("error", trend_error))
if len(trend_warn) > 0:
res.append(("warn", trend_warn))
result[bucket] = res
return result
def run(self, accessor):
result = {}
cluster = 0
for bucket, stats_info in stats_buffer.buckets.iteritems():
values = stats_info[accessor["scale"]][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
trend = []
total = 0
data = []
num_error = []
for node, vals in nodeStats.iteritems():
#a, b = util.linreg(timestamps, vals)
value = sum(vals) / samplesCount
total += value
if value > accessor["threshold"]:
num_error.append({"node":node, "value":value})
trend.append((node, util.pretty_float(value)))
data.append(value)
total /= len(nodeStats)
trend.append(("total", util.pretty_float(total)))
trend.append(("variance", util.two_pass_variance(data)))
if len(num_error) > 0:
trend.append(("error", num_error))
cluster += total
result[bucket] = trend
if len(stats_buffer.buckets) > 0:
result["cluster"] = util.pretty_float(cluster / len(stats_buffer.buckets))
return result
def run(self, accessor, scale, threshold=None):
result = {}
if threshold.has_key("DiskQueueDrainingAnalysis"):
threshold_val = threshold["DiskQueueDrainingAnalysis"][accessor["name"]]
else:
threshold_val = accessor["threshold"]
for bucket, stats_info in stats_buffer.buckets.iteritems():
res = []
disk_queue_avg_error = []
drain_values = stats_info[scale][accessor["counter"][0]]
len_values = stats_info[scale][accessor["counter"][1]]
nodeStats = drain_values["nodeStats"]
samplesCount = drain_values["samplesCount"]
for node, vals in nodeStats.iteritems():
if samplesCount > 0:
avg = sum(vals) / samplesCount
else:
avg = 0
if node in len_values["nodeStats"]:
disk_len_vals = len_values["nodeStats"][node]
else:
continue
if samplesCount > 0:
len_avg = sum(disk_len_vals) / samplesCount
else:
len_avg = 0
if avg < threshold_val["drainRate"] and len_avg > threshold_val["diskLength"]:
symptom = accessor["symptom"] % (util.pretty_float(avg), threshold_val["drainRate"], int(len_avg), threshold_val["diskLength"])
disk_queue_avg_error.append({"node":node, "level":"red", "value":symptom})
res.append((node, (util.pretty_float(avg), int(len_avg))))
if len(disk_queue_avg_error) > 0:
res.append(("error", disk_queue_avg_error))
result[bucket] = res
return result
def run(self, accessor, threshold=None):
result = {}
cluster = 0
if threshold.has_key("ActiveReplicaResidentRatio"):
threshold_val = threshold["ActiveReplicaResidentRatio"]["activeReplicaResidentRatio"]
else:
threshold_val = accessor["threshold"]
for bucket, stats_info in stats_buffer.buckets.iteritems():
item_avg = {
"curr_items": [],
"vb_replica_curr_items": [],
}
num_error = []
for counter in accessor["counter"]:
values = stats_info[accessor["scale"]][counter]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
for node, vals in nodeStats.iteritems():
if samplesCount > 0:
avg = sum(vals) / samplesCount
else:
avg = 0
item_avg[counter].append((node, avg))
res = []
active_total = replica_total = 0
for active, replica in zip(item_avg['curr_items'], item_avg['vb_replica_curr_items']):
if replica[1] == 0:
if active[1] == 0:
res.append((active[0], "No active items"))
else:
res.append((active[0], "No replica"))
else:
ratio = 100.0 * active[1] / replica[1]
res.append((active[0], util.pretty_float(ratio) + "%"))
active_total += active[1]
replica_total += replica[1]
if active_total == 0:
res.append(("total", "no active items"))
elif replica_total == 0:
res.append(("total", "no replica items"))
if stats_buffer.bucket_info[bucket]["bucketType"] != 'memcached':
num_error.append({"node":"total", "value": "No replica items"})
else:
ratio = active_total * 100.0 / replica_total
cluster += ratio
res.append(("total", util.pretty_float(ratio) + "%"))
delta = abs(100 - ratio)
if delta > threshold_val:
symptom = accessor["symptom"].format(util.pretty_float(delta), util.pretty_float(threshold_val))
num_error.append({"node":"total", "value": symptom})
if len(num_error) > 0:
res.append(("error", num_error))
result[bucket] = res
if len(stats_buffer.buckets) > 0:
result["cluster"] = util.pretty_float(cluster / len(stats_buffer.buckets)) + "%"
return result
def run(self, accessor, scale, threshold=None):
result = {}
for bucket, stats_info in stats_buffer.buckets.iteritems():
values = stats_info[scale][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
for node, vals in nodeStats.iteritems():
if len(vals):
avg = vals[-1]
else:
avg = 0
if accessor.has_key("unit"):
if accessor["unit"] == "size":
avg = util.size_label(avg)
elif accessor["unit"] == "number":
avg = util.number_label(avg)
elif accessor["unit"] == "time":
avg = util.time_label(avg)
else:
avg = util.pretty_float(avg)
if result.has_key(node):
result[node].append((bucket, avg))
else:
result[node] = [(bucket, avg)]
return result
def run(self, accessor, scale, threshold=None):
result = {}
for bucket, stats_info in stats_buffer.buckets.iteritems():
values = stats_info[scale][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
for node, vals in nodeStats.iteritems():
if len(vals):
avg = sum(vals) / len(vals)
else:
avg = 0
if result.has_key(node):
result[node].append((bucket, util.pretty_float(avg)))
else:
result[node] = [(bucket, util.pretty_float(avg))]
return result
def run(self, accessor):
result = {}
cluster = 0
for bucket, stats_info in stats_buffer.buckets.iteritems():
item_avg = {
"curr_items": [],
"vb_replica_curr_items": [],
}
num_error = []
for counter in accessor["counter"]:
values = stats_info[accessor["scale"]][counter]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
for node, vals in nodeStats.iteritems():
avg = sum(vals) / samplesCount
item_avg[counter].append((node, avg))
res = []
active_total = replica_total = 0
for active, replica in zip(item_avg['curr_items'], item_avg['vb_replica_curr_items']):
if replica[1] == 0:
res.append((active[0], "No replica"))
else:
ratio = 1.0 * active[1] / replica[1]
res.append((active[0], util.pretty_float(ratio)))
if ratio < accessor["threshold"]:
num_error.append({"node":active[0], "value": ratio})
active_total += active[1]
replica_total += replica[1]
if replica_total == 0:
res.append(("total", "no replica"))
else:
ratio = active_total * 1.0 / replica_total
cluster += ratio
res.append(("total", util.pretty_float(ratio)))
if ratio != accessor["threshold"]:
num_error.append({"node":"total", "value": ratio})
#if len(num_error) > 0:
# result[bucket] = {"error" : num_error}
#else:
result[bucket] = res
if len(stats_buffer.buckets) > 0:
result["cluster"] = util.pretty_float(cluster / len(stats_buffer.buckets))
return result
def run(self, accessor, threshold=None):
result = {}
cluster = 0
thresholdval = accessor["threshold"]
if threshold.has_key("CacheMissRatio"):
thresholdval = threshold["CacheMissRatio"]
for bucket, stats_info in stats_buffer.buckets.iteritems():
values = stats_info[accessor["scale"]][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
trend = []
total = 0
data = []
num_error = []
for node, vals in nodeStats.iteritems():
#a, b = util.linreg(timestamps, vals)
if samplesCount > 0:
value = sum(vals) / samplesCount
else:
value = 0
total += value
if value > thresholdval:
symptom = accessor["symptom"].format(value, thresholdval)
num_error.append({"node":node, "value":symptom})
trend.append((node, util.pretty_float(value) + "%"))
data.append(value)
if len(nodeStats) > 0:
total /= len(nodeStats)
trend.append(("total", util.pretty_float(total) + "%"))
trend.append(("variance", util.two_pass_variance(data)))
if len(num_error) > 0:
trend.append(("error", num_error))
cluster += total
result[bucket] = trend
if len(stats_buffer.buckets) > 0:
result["cluster"] = util.pretty_float(cluster / len(stats_buffer.buckets)) + "%"
return result
def run(self, accessor):
result = []
for node, values in stats_buffer.nodes.iteritems():
result.append({"ip": values["host"],
"port": values["port"],
"cpuUtilization" :util.pretty_float(values["systemStats"]["cpu_utilization_rate"]),
"swapTotal": util.size_label(values["systemStats"]["swap_total"]),
"swapUsed" : util.size_label(values["systemStats"]["swap_used"]),
"currentItems" : values["systemStats"]["currentItems"],
"currentItemsTotal" : values["systemStats"]["currentItemsTotal"],
"replicaCurrentItems" : values["systemStats"]["replicaCurrentItems"]})
return result
def run(self, accessor, scale, threshold=None):
result = {}
for node, values in stats_buffer.nodes.iteritems():
if values["status"] != "healthy":
continue
result[node] = {
"ip": values["host"],
"port": values["port"],
"cpuUtilization" :util.pretty_float(values["systemStats"]["cpu_utilization_rate"]),
"swapTotal": util.size_label(values["systemStats"]["swap_total"]),
"swapUsed" : util.size_label(values["systemStats"]["swap_used"]),
"currentItems" : values["systemStats"]["currentItems"],
"currentItemsTotal" : values["systemStats"]["currentItemsTotal"],
"replicaCurrentItems" : values["systemStats"]["replicaCurrentItems"]}
return result
def run(self, accessor, threshold=None):
result = []
hdd_total = 0
ram_total = 0
for node, nodeinfo in stats_buffer.nodes.iteritems():
if nodeinfo["status"] != "healthy":
continue
if nodeinfo["StorageInfo"].has_key("hdd"):
hdd_total += nodeinfo['StorageInfo']['hdd']['usedByData']
if nodeinfo["StorageInfo"].has_key("ram"):
ram_total += nodeinfo['StorageInfo']['ram']['usedByData']
if ram_total > 0:
ratio = hdd_total * 100.0 / ram_total
else:
ratio = 0
return util.pretty_float(ratio) + "%"
def run(self, accessor, scale, threshold=None):
result = {}
for bucket, stats_info in stats_buffer.buckets.iteritems():
values = stats_info[scale][accessor["counter"]]
timestamps = values["timestamp"]
timestamps = [x - timestamps[0] for x in timestamps]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
trend = []
for node, vals in nodeStats.iteritems():
if samplesCount > 0:
avg = sum(vals) / samplesCount
else:
avg = 0
trend.append((node, util.pretty_float(avg)))
result[bucket] = trend
return result
def run(self, accessor):
result = []
for node, values in stats_buffer.nodes.iteritems():
result.append({
"ip":
values["host"],
"port":
values["port"],
"cpuUtilization":
util.pretty_float(
values["systemStats"]["cpu_utilization_rate"]),
"swapTotal":
util.size_label(values["systemStats"]["swap_total"]),
"swapUsed":
util.size_label(values["systemStats"]["swap_used"]),
"currentItems":
values["systemStats"]["currentItems"],
"currentItemsTotal":
values["systemStats"]["currentItemsTotal"],
"replicaCurrentItems":
values["systemStats"]["replicaCurrentItems"]
})
return result
def run(self, accessor, scale, threshold=None):
result = {}
thresholdval = accessor["threshold"]
if threshold.has_key("PerformanceDiagnosis_diskread"):
thresholdval = threshold["PerformanceDiagnosis_diskread"]
for bucket, stats_info in stats_buffer.buckets.iteritems():
if stats_info[scale].get(accessor["counter"][0], None) is None:
return result
diskRead_values = stats_info[scale][accessor["counter"][0]]
cacheMissRate_values = stats_info[scale][accessor["counter"][1]]
arr_values = stats_info[scale][accessor["counter"][2]]
memUsed_values = stats_info[scale][accessor["counter"][3]]
curr_values = stats_info[scale][accessor["counter"][4]]
cmdSet_values = stats_info[scale][accessor["counter"][5]]
timestamps = diskRead_values["timestamp"]
samplesCount = diskRead_values["samplesCount"]
trend = []
num_warn = []
for node, vals in diskRead_values["nodeStats"].iteritems():
diskRead_vals = diskRead_values["nodeStats"][node]
cacheMissRate_vals = cacheMissRate_values["nodeStats"][node]
arr_vals = arr_values["nodeStats"][node]
memUsed_vals = memUsed_values["nodeStats"][node]
curr_vals = curr_values["nodeStats"][node]
cmdSet_vals = cmdSet_values["nodeStats"][node]
if samplesCount > 0:
node_avg_mem = sum(memUsed_vals) / samplesCount
node_avg_curr = sum(curr_vals) / samplesCount
node_avg_cmdset = sum(cmdSet_vals) / samplesCount
else:
node_avg_curr = 0
# Fine grained analysis
abnormal_segs = util.abnormal_extract(diskRead_vals, thresholdval["ep_bg_fetched"])
abnormal_vals = []
for seg in abnormal_segs:
begin_index = seg[0]
seg_total = seg[1]
if seg_total < thresholdval["recurrence"]:
continue
end_index = begin_index + seg_total
diskread_avg = sum(diskRead_vals[begin_index : end_index]) / seg_total
cmr_avg = sum(cacheMissRate_vals[begin_index : end_index]) / seg_total
arr_avg = sum(arr_vals[begin_index : end_index]) / seg_total
mem_avg = sum(memUsed_vals[begin_index : end_index]) / seg_total
curr_avg = sum(curr_vals[begin_index : end_index]) / seg_total
cmdSet_avg = sum(cmdSet_vals[begin_index : end_index]) / seg_total
if cmr_avg > thresholdval["ep_cache_miss_rate"] and \
arr_avg < thresholdval["vb_active_resident_items_ratio"] and \
mem_avg > node_avg_mem and \
curr_avg > node_avg_curr and \
cmdSet_avg > node_avg_cmdset:
symptom = accessor["symptom"] % (util.pretty_datetime(timestamps[begin_index]),
util.pretty_datetime(timestamps[end_index-1]),
util.number_label(int(curr_avg)),
util.size_label(int(mem_avg)),
util.pretty_float(cmr_avg),
util.pretty_float(arr_avg),
util.number_label(int(diskread_avg)))
num_warn.append({"node":node, "value":symptom})
abnormal_vals.append(diskread_avg)
if len(abnormal_vals) > 0:
trend.append((node, {"value" : util.pretty_float(sum(abnormal_vals)/len(abnormal_vals)),
"raw" : abnormal_vals}
))
if len(num_warn) > 0:
trend.append(("warn", num_warn))
result[bucket] = trend
return result
def run(self, accessor, scale, threshold=None):
result = {}
cluster = 0
if threshold.has_key(accessor["name"]):
threshold_val = threshold[accessor["name"]]
else:
threshold_val = accessor["threshold"]
for bucket, stats_info in stats_buffer.buckets.iteritems():
item_avg = {
"curr_items": [],
"ep_tap_total_total_backlog_size": [],
}
num_error = []
num_warn = []
for counter in accessor["counter"]:
values = stats_info[scale][counter]
nodeStats = values["nodeStats"]
samplesCount = values["samplesCount"]
for node, vals in nodeStats.iteritems():
if samplesCount > 0:
avg = sum(vals) / samplesCount
else:
avg = 0
item_avg[counter].append((node, avg))
res = []
active_total = replica_total = 0
for active, replica in zip(item_avg['curr_items'], item_avg['ep_tap_total_total_backlog_size']):
if active[1] == 0:
res.append((active[0], 0))
else:
ratio = 100.0 * replica[1] / active[1]
delta = int(replica[1])
if accessor["type"] == "percentage" and ratio > threshold_val["percentage"]["high"]:
symptom = accessor["symptom"] % (util.pretty_float(ratio), threshold_val["percentage"]["high"])
num_error.append({"node":active[0], "value": symptom})
res.append((active[0], util.pretty_float(ratio) + "%"))
elif accessor["type"] == "number" and delta > threshold_val["number"]["high"]:
symptom = accessor["symptom"] % (util.number_label(delta), util.number_label(threshold_val["number"]["high"]))
num_error.append({"node":active[0], "value": symptom})
res.append((active[0], util.number_label(delta)))
elif accessor["type"] == "percentage" and ratio > threshold_val["percentage"]["low"]:
symptom = accessor["symptom"] % (util.pretty_float(ratio), threshold_val["percentage"]["low"])
num_warn.append({"node":active[0], "value": symptom})
res.append((active[0], util.pretty_float(ratio) + "%"))
elif accessor["type"] == "number" and delta > threshold_val["number"]["low"]:
symptom = accessor["symptom"] % (util.number_label(delta), util.number_label(threshold_val["number"]["low"]))
num_warn.append({"node":active[0], "value": symptom})
res.append((active[0], util.number_label(delta)))
active_total += active[1]
replica_total += replica[1]
if active_total > 0:
ratio = replica_total * 100.0 / active_total
cluster += ratio
if accessor["type"] == "percentage" and ratio > threshold_val["percentage"]["high"]:
symptom = accessor["symptom"] % (util.pretty_float(ratio), threshold_val["percentage"]["high"])
num_error.append({"node":"total", "value": symptom})
res.append(("total", util.pretty_float(ratio) + "%"))
elif accessor["type"] == "percentage" and ratio > threshold_val["percentage"]["low"]:
symptom = accessor["symptom"] % (util.pretty_float(ratio), threshold_val["percentage"]["low"])
num_warn.append({"node":"total", "value": symptom})
res.append(("total", util.pretty_float(ratio) + "%"))
if len(num_error) > 0:
res.append(("error", num_error))
if len(num_warn) > 0:
res.append(("warn", num_warn))
result[bucket] = res
if len(stats_buffer.buckets) > 0:
result["cluster"] = util.pretty_float(cluster / len(stats_buffer.buckets))
return result