135 lines
4.4 KiB
Python
135 lines
4.4 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.common.ErrorCode import ErrorCode
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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 base_utils.os.disk_util import DiskUtil
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from os_platform.UserPlatform import g_Platform
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expectedReadAhead = "16384"
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g_needRepair = []
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class blockdev:
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def __init__(self):
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"""
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function : Init class blockdev
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input : NA
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output : NA
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"""
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self.ra = dict() # key is device name value is getra value
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self.errormsg = ''
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class CheckBlockdev(BaseItem):
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def __init__(self):
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super(CheckBlockdev, self).__init__(self.__class__.__name__)
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def getDevices(self):
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"""
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"""
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cmd = "fdisk -l 2>/dev/null | grep \"Disk /dev/\"" \
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" | grep -v \"/dev/mapper/\" | awk '{ print $2 }' " \
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"| awk -F'/' '{ print $NF }' | sed s/:$//g"
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output = SharedFuncs.runShellCmd(cmd)
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devList = output.split('\n')
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return devList
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def getDeviceIoctls(self, devName):
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"""
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function : Get device ioctls
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input : devName device name
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output : blockSize
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"""
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blockSize = 0
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cmd = g_Platform.getBlockdevCmd(devName)
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(status, output) = subprocess.getstatusoutput(cmd)
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if status != 0:
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raise Exception(ErrorCode.GAUSS_504["GAUSS_50408"] % cmd +
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" Error: \n%s" % str(output))
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if str(output.strip()) != "" and output.isdigit():
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blockSize = int(output)
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return blockSize
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def collectBlockdev(self):
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"""
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function : Collector blockdev
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input : NA
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output : Instantion
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"""
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data = blockdev()
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devices = list()
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try:
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diskName = ''
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# If the directory of '/' is a disk array,
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# all disk prereads will be set
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devlist = self.getDevices()
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allDiskList = DiskUtil.getMountInfo()
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for diskInfo in allDiskList:
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if (diskInfo.mountpoint == '/'):
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diskName = diskInfo.device.replace('/dev/', '')
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for dev in devlist:
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if (dev.strip() == diskName.strip()):
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continue
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devices.append("/dev/%s" % dev)
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except Exception as e:
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data.errormsg = e.__str__()
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for d in devices:
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data.ra[d] = self.getDeviceIoctls(d)
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return data
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def doCheck(self):
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global g_needRepair
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data = self.collectBlockdev()
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flag = True
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abnormalMsg = ""
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resultStr = ""
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for dev in data.ra.keys():
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ra = data.ra[dev]
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if int(ra) < int(expectedReadAhead):
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g_needRepair.append(dev)
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abnormalMsg += "On device (%s) 'blockdev readahead'" \
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" RealValue '%s' ExpectedValue '%s'\n" % (
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dev, ra, expectedReadAhead)
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flag = False
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else:
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resultStr += "On device (%s) 'blockdev readahead': '%s' \n" % (
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dev, ra)
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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.NG
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self.result.val = abnormalMsg
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self.result.raw = abnormalMsg + resultStr
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def doSet(self):
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for dev in g_needRepair:
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self.SetBlockdev(dev)
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def SetBlockdev(self, devname):
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(THPFile, initFile) = SharedFuncs.getTHPandOSInitFile()
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cmd = "/sbin/blockdev --setra %s %s " % (expectedReadAhead, devname)
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cmd += " && echo \"/sbin/blockdev --setra %s %s\" >> %s" % (
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expectedReadAhead, devname, initFile)
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SharedFuncs.runShellCmd(cmd)
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