103 lines
3.6 KiB
Python
103 lines
3.6 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 sys
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import subprocess
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sys.path.append(sys.path[0] + "/../../")
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from gspylib.common.ErrorCode import ErrorCode
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from gspylib.os.gsplatform import g_Platform
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class SysctlInfo:
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"""
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class: SysctlInfo
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"""
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def __init__(self):
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"""
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function: constructor
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"""
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self.sysctlFile = g_Platform.getSysctlFile()
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def GetSysPara(self, paraList):
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"""
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function : Get system parameters by paraList
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input : paraList parameters list
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output : para_dict parameters dict
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"""
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para_dict = {}
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fullParaDict = {}
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try:
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cmd = "'%s' -a" % g_Platform.getSysctlCmd()
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(status, output) = subprocess.getstatusoutput(cmd)
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if (status != 0):
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raise Exception(ErrorCode.GAUSS_514["GAUSS_51400"] % cmd +
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" Error: \n%s" % str(output))
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line_list = output.split('\n')
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for line in line_list:
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words = line.split('=')
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if (len(words) < 2):
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continue
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fullParaDict[words[0].strip()] = words[1].strip()
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# chose para
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for para in paraList:
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if (para in fullParaDict.keys()):
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para_dict[para] = fullParaDict[para]
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except Exception as e:
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raise Exception(str(e))
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return para_dict
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def SetSysPara(self, paraDict):
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"""
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function : Set system parameters by dict
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input : paraDict parameters dict
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output : null
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"""
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try:
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# write or change configure file
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configure_file = self.sysctlFile
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with open(configure_file, 'r') as fp:
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full_line = fp.readlines()
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with open(configure_file, 'w') as fp:
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for current_line in full_line:
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isFind = False
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for key in paraDict.keys():
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if current_line.find(key) >= 0 \
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and current_line.strip()[0] != '#':
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new_line = "#" + current_line
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fp.write(current_line.replace(current_line,
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new_line))
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isFind = True
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if not isFind:
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fp.write(current_line.replace(current_line,
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current_line))
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for key in paraDict.keys():
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new_line = "\n" + key + " =" + paraDict[key]
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fp.write(new_line)
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# restart server
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cmd = "'%s' -p" % g_Platform.getSysctlCmd()
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(status, output) = subprocess.getstatusoutput(cmd)
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if status != 0:
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raise Exception(ErrorCode.GAUSS_514["GAUSS_51400"] % cmd +
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" Error: \n%s" % str(output))
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except Exception as e:
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raise Exception(str(e))
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g_sysctl = SysctlInfo()
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