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aggregators.py
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# coding=utf-8 # # Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved # # Licensed under CLOUD LINUX LICENSE AGREEMENT # http://cloudlinux.com/docs/LICENSE.TXT from collections import defaultdict from lvestats.core.plugin import LveStatsPlugin from lvestats.plugins.generic.analyzers import LVEUsage, FAULTS class AggregatedLveUsage(LVEUsage): __slots__ = () def __init__(self, lve_version=8): LVEUsage.__init__(self, lve_version) self.time = 0.0 def add(self, lveusage): self.time += lveusage.time or 0 if lveusage.time: self.cpu_usage += lveusage.cpu_usage * lveusage.time self.mem_usage += lveusage.mem_usage * lveusage.time self.mep += lveusage.mep * lveusage.time self.io_usage += lveusage.io_usage * lveusage.time self.iops += lveusage.iops * lveusage.time self.memphy += lveusage.memphy * lveusage.time self.nproc += lveusage.nproc * lveusage.time self.cpu_fault += lveusage.cpu_fault self.mem_fault += lveusage.mem_fault self.mep_fault += lveusage.mep_fault self.io_fault += lveusage.io_fault # Commented due to LVES-159. See aggregate function below # self.iops_fault += lveusage.iops_fault self.memphy_fault += lveusage.memphy_fault self.nproc_fault += lveusage.nproc_fault self.lmem = max(lveusage.lmem, self.lmem) self.lcpu = max(lveusage.lcpu, self.lcpu) self.lep = max(lveusage.lep, self.lep) self.io = max(lveusage.io, self.io) self.lmemphy = max(lveusage.lmemphy, self.lmemphy) self.lnproc = max(lveusage.lnproc, self.lnproc) self.liops = max(lveusage.liops, self.liops) self.has_changed_limits = self.has_changed_limits or lveusage.has_changed_limits self.has_changed_nproc = self.has_changed_nproc or lveusage.has_changed_nproc def aggregate(self): if self.time > 0: self.cpu_usage /= self.time self.mem_usage /= self.time self.mep /= self.time self.io_usage /= self.time self.iops /= self.time self.memphy /= self.time self.nproc /= self.time # LVES-159: change the way iops_faults are calculated # if aIOPS >= lIOPS, then iops_faults = 1 if self.iops >= self.liops > 0: self.iops_fault = 1 else: self.iops_fault = 0 class LveUsageAggregator5S(LveStatsPlugin): def __init__(self): self.get_data_from = 'lve_usages_5s' self.set_data_to = 'lve_usage_5s' self.snapshots_enabled = True def set_config(self, config): """ :param dict config: """ self.snapshots_enabled = config.get('disable_snapshots', "false").lower() != "true" def dict_sum_values(self, dict1, dict2): """ :param dict dict1: :param dict dict2: """ result = {} items = list(dict1.items()) + list(dict2.items()) for attr_name, count in items: result[attr_name] = result.get(attr_name, 0) + count return result def aggregate_faults(self, lve_data, lve_usage): """ :type lve_data: dict :type lve_usage: dict[int, AggregatedLveUsage] """ if self.snapshots_enabled: old_faults = lve_data.get('faults', {}) for lve_id, usage in lve_usage.items(): for attr_name in FAULTS: fault = getattr(usage, attr_name) if fault > 0: if lve_id not in old_faults: old_faults[lve_id] = {} old_faults[lve_id][attr_name] = old_faults[lve_id].get(attr_name, 0) + fault lve_data['faults'] = old_faults def execute(self, lve_data): """ :param dict lve_data: """ lve_usages = lve_data[self.get_data_from] aggregated = defaultdict(AggregatedLveUsage) for iteration_data in lve_usages: for lve_id, lve_usage in iteration_data.items(): aggregated[lve_id].add(lve_usage) for aggregated_lve_usage in aggregated.values(): aggregated_lve_usage.aggregate() result = {} for lve_id, usage in aggregated.items(): if lve_id == 0: result[lve_id] = usage continue if usage.has_interesting_values() \ or usage.has_changed_limits \ or usage.has_changed_nproc: result[lve_id] = usage lve_data[self.set_data_to] = result self.aggregate_faults(lve_data, result) # FIXME(vlebedev): Dirty hack to get raw usage measurement in plugins after this one. # lve_data[self.get_data_from] = [] class LveUsageAggregator(LveUsageAggregator5S): def __init__(self): # pylint: disable=super-init-not-called self.period = 60 self.get_data_from = 'lve_usages' self.set_data_to = 'lve_usage' def set_config(self, config): """ :param dict config: """ self.period = config.get('aggregation_period', self.period) def aggregate_faults(self, lve_data, lve_usage): pass # FIXME(vlebedev): Dirty hack to get raw usage measurement in plugins after this one. def execute(self, lve_data): super().execute(lve_data) lve_data[self.get_data_from] = []