89 lines
3.7 KiB
Python
89 lines
3.7 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 os
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import json
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from gspylib.inspection.common import SharedFuncs
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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 gspylib.common.ErrorCode import ErrorCode
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from base_utils.os.file_util import FileUtil
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class CheckDNSkew(BaseItem):
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def __init__(self):
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super(CheckDNSkew, self).__init__(self.__class__.__name__)
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def doCheck(self):
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nodeInfo = self.cluster.getDbNodeByName(self.host)
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maxusage = None
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minusage = None
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usagedic = {}
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val = ""
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masterDnList = SharedFuncs.getMasterDnNum(self.user, self.mpprcFile)
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for DnInstance in nodeInfo.datanodes:
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if (DnInstance.instanceId in masterDnList):
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datadir = os.path.join(DnInstance.datadir, "base")
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output = FileUtil.getDirSize(datadir, "m")
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output = output.split()[0][:-1]
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if (not output.isdigit()):
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raise Exception(ErrorCode.GAUSS_504["GAUSS_50412"]
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% (DnInstance.instanceId))
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if (not maxusage or int(maxusage) < int(output)):
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maxusage = int(output)
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if (not minusage or int(minusage) > int(output)):
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minusage = int(output)
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usagedic[DnInstance.instanceId] = output
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val += "\ndn %s: vol %sm" % (DnInstance.instanceId, output)
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if (not usagedic):
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self.result.rst = ResultStatus.NA
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self.result.val = "No master database node in this host"
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else:
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if (maxusage > minusage * 1.05):
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self.result.rst = ResultStatus.NG
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self.result.val = "The result is not ok:\n%s" % val
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self.result.raw = json.dumps(usagedic)
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else:
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self.result.rst = ResultStatus.OK
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self.result.val = "Data distributed well in local host"
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self.result.raw = json.dumps(usagedic)
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def postAnalysis(self, itemResult):
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maxusage = None
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minusage = None
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val = "The result is not ok"
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for v in itemResult.getLocalItems():
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try:
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tmpdic = json.loads(v.raw)
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for key, value in tmpdic.items():
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val += "\ndn %s: vol %sM" % (key, value)
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if (not maxusage or int(maxusage) < int(value)):
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maxusage = int(value)
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if (not minusage or int(minusage) > int(value)):
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minusage = int(value)
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except Exception as err:
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val += str(err)
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if (maxusage and minusage):
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if (maxusage > minusage * 1.05):
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itemResult.rst = ResultStatus.NG
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itemResult.analysis = val
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else:
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itemResult.rst = ResultStatus.OK
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itemResult.analysis = "Data distributed well in all dns"
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else:
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itemResult.rst = ResultStatus.NA
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itemResult.analysis = "No master database node in this cluster"
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return itemResult
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