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openGauss-OM/script/gspylib/inspection/items/device/CheckLogicalBlock.py
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2022-03-05 18:51:52 +08:00

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Python

# -*- coding:utf-8 -*-
# Copyright (c) 2020 Huawei Technologies Co.,Ltd.
#
# openGauss is licensed under Mulan PSL v2.
# You can use this software according to the terms
# and conditions of the Mulan PSL v2.
# You may obtain a copy of Mulan PSL v2 at:
#
# http://license.coscl.org.cn/MulanPSL2
#
# THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OF ANY KIND,
# EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
# MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
# See the Mulan PSL v2 for more details.
# ----------------------------------------------------------------------------
import glob
import subprocess
from gspylib.inspection.common import SharedFuncs
from gspylib.inspection.common.CheckItem import BaseItem
from gspylib.inspection.common.CheckResult import ResultStatus
from base_utils.os.file_util import FileUtil
g_expectedScheduler = "512"
result = {}
class CheckLogicalBlock(BaseItem):
def __init__(self):
super(CheckLogicalBlock, self).__init__(self.__class__.__name__)
def doCheck(self):
global result
devices = set()
self.result.val = ""
files = glob.glob("/sys/block/*/queue/logical_block_size")
for f in files:
words = f.split("/")
if len(words) != 6:
continue
devices.add(words[3].strip())
for d in devices:
request = \
FileUtil.readFile("/sys/block/%s/queue/logical_block_size" % d)[
0]
result[d] = request.strip()
if len(result) == 0:
self.result.val = "Warning:Not find logical block file," \
"please check it."
self.result.rst = ResultStatus.WARNING
flag = True
for i in result.keys():
reuqest = result[i]
self.result.raw += "%s %s\n" % (i, reuqest)
if (i.startswith('loop') or i.startswith('ram')):
continue
if int(reuqest) < int(g_expectedScheduler):
flag = False
self.result.val += "\nWarning:On device (%s) '" \
"logicalBlock Request' RealValue '%d' " \
"ExpectedValue '%d'" % (
i, int(reuqest),
int(g_expectedScheduler))
if flag:
self.result.rst = ResultStatus.OK
self.result.val = "All disk LogicalBlock values are correct."
else:
self.result.rst = ResultStatus.NG
def doSet(self):
resultStr = ""
for dev in result.keys():
(THPFile, initFile) = SharedFuncs.getTHPandOSInitFile()
cmd = " echo %s >> /sys/block/%s/queue/logical_block_size" % (
g_expectedScheduler, dev)
cmd += \
" && echo \"echo %s >> " \
"/sys/block/%s/queue/logical_block_size\" >> %s" % (
g_expectedScheduler, dev, initFile)
(status, output) = subprocess.getstatusoutput(cmd)
if (status != 0):
resultStr = "Failed to set logicalBlock Request.\n " \
"Error : %s." % output
resultStr += "The cmd is %s " % cmd
self.result.val = resultStr