108 lines
3.8 KiB
Python
108 lines
3.8 KiB
Python
# -*- coding:utf-8 -*-
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# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
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#
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# openGauss is licensed under Mulan PSL v2.
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# You can use this software according to the terms
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# and conditions of the Mulan PSL v2.
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# You may obtain a copy of Mulan PSL v2 at:
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#
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# http://license.coscl.org.cn/MulanPSL2
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#
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# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OF ANY KIND,
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# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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# See the Mulan PSL v2 for more details.
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# ----------------------------------------------------------------------------
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import subprocess
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from gspylib.inspection.common.CheckItem import BaseItem
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from gspylib.inspection.common.CheckResult import ResultStatus
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from base_utils.os.file_util import FileUtil
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MASTER_INSTANCE = 0
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STANDBY_INSTANCE = 1
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class CheckMaxAsyIOrequests(BaseItem):
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def __init__(self):
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super(CheckMaxAsyIOrequests, self).__init__(self.__class__.__name__)
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def collectAsynchronousIORequest(self):
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result = []
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request = FileUtil.readFile("/proc/sys/fs/aio-max-nr")[0]
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result.append(request.strip())
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return result
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def getClusterInstancenum(self):
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cnnum = 0
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dnnum = 0
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nodeInfo = self.cluster.getDbNodeByName(self.host)
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for i in nodeInfo.coordinators:
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if i.datadir != "":
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cnnum += 1
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for i in nodeInfo.datanodes:
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if (i.instanceType == MASTER_INSTANCE):
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dnnum += 1
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if (i.instanceType == STANDBY_INSTANCE):
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dnnum += 1
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return (dnnum + cnnum) * 1048576
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def doCheck(self):
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expectedScheduler = "104857600"
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flag = True
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resultStr = ""
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instancenum = 0
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if (self.cluster):
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instancenum = self.getClusterInstancenum()
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data = self.collectAsynchronousIORequest()
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if len(data) == 0:
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flag = False
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resultStr += "Not find AsynchronousIORequest file.\n"
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if (instancenum > expectedScheduler):
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resultStr += "Asy IO requests must be greater than %s.\n" \
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% instancenum
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else:
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resultStr += "Asy IO requests must be greater than %s.\n" \
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% expectedScheduler
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else:
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for i in iter(data):
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request = i
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if (int(request) < int(instancenum) and int(
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expectedScheduler) < int(instancenum)):
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flag = False
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resultStr += "Asy IO requests %s expectedScheduler " \
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"%s.\n" \
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% (
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request, instancenum)
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elif (int(request) < int(expectedScheduler) and int(
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instancenum) < int(expectedScheduler)):
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flag = False
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resultStr += "Asy IO requests %s expectedScheduler " \
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"%s.\n" \
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% (
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request, expectedScheduler)
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else:
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resultStr += "Asy IO requests is %s\n" % request
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self.result.val = resultStr
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if flag:
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self.result.rst = ResultStatus.OK
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else:
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self.result.rst = ResultStatus.WARNING
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def doSet(self):
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resultStr = ""
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cmd = "echo 104857600 > /proc/sys/fs/aio-max-nr"
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(status, output) = subprocess.getstatusoutput(cmd)
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if (status != 0):
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resultStr = "Failed to set Asy IO requests.\nError : %s." % \
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output + "The cmd is %s " % cmd
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if (len(resultStr) > 0):
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self.result.val = resultStr
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else:
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self.result.val = "Set Asy IO requests successfully."
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