Question

我正在使用mysqldb / python将一些数据推送到mysql数据库中。

脚本解析数据的一堆XML文件。

MySQL服务器似乎退出并给我一个'＃2002 - 服务器没有响应（或者本地MySQL服务器的套接字没有正确配置）'错误在交易中途 - 在每次运行时在不同的地方（所以我假设它不是一个特定的数据，使它失败......）

它完美无缺，直到它达到~12或13档并且它给了我这个错误：

Error 2003: Can't connect to MySQL server on 'localhost' (10055)
Traceback (most recent call last):
File "sigFileParser.py", line 113, in <module>
 doParser(sigfile_filename)
File "sigFileParser.py", line 106, in
 doParser
  doFormatsPush(packedFormats)
File "sigFileParser.py", line 27, in
 doFormatsPush
sys.exit (1)
NameError: global name 'sys' is not defined

一旦发生错误，我无法进入MySQL控制台或通过PHOPmyadmin

如果我离开一段时间，我可以回到MySQL

MySQL表：

CREATE TABLE IF NOT EXISTS patterns
 (Version int(3),
 DateCreated DATETIME,
 SigID int(4),
 SigSpecificity CHAR(10),
 ByteSeqReference CHAR(12),
 MinFragLength int(4),
 Position int(4),
 SubSeqMaxOffset int(4),
 SubSeqMinOffset int(4),
 Pattern TEXT)

和

CREATE TABLE IF NOT EXISTS formats
(Version int(3),
DateCreated DATETIME,
FormatID int(4),
FormatName TEXT,
PUID TEXT,
FormatVersion TEXT,
FormatMIMEType TEXT,
InternalSignatureID int(4),
Extension TEXT,
HasPriorityOverFileFormatID int(4))

Py代码

from lxml import etree
import re, os, MySQLdb
def doPatternPush(packedPatterns):
 try:
  db = MySQLdb.connect (host = "localhost", user = "root", passwd = "", db = "sigfiles")
  c = db.cursor()
  c.execute('''INSERT INTO sigfiles.patterns
  (Version,DateCreated,SigID,SigSpecificity,ByteSeqReference,MinFragLength,Position,SubSeqMaxOffset,SubSeqMinOffset,Pattern)
   VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)''', packedPatterns)
  db.commit()
  except MySQLdb.Error, e:
  print "Error %d: %s" % (e.args[0], e.args[1])
  sys.exit (1)
 return (db)
def doFormatsPush(packedFormats):
 try:
  db = MySQLdb.connect (host = "localhost", user = "root", passwd = "", db = "sigfiles")
  c = db.cursor()
  c.execute('''INSERT INTO sigfiles.formats
  (Version,DateCreated,FormatID,FormatName,PUID,FormatVersion,FormatMIMEType,InternalSignatureID,Extension,HasPriorityOverFileFormatID)
  VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s, %s)''', packedFormats)
  db.commit()
 except MySQLdb.Error, e:
  print "Error %d: %s" % (e.args[0], e.args[1])
  sys.exit (1)
 return(db)
def doParser(sigfile_filename):
 tree = etree.parse(sigfile_filename) 
 root = tree.getroot()
 attributes = root.attrib
 if 'DateCreated' in root.attrib:
  DateCreated = (attributes["DateCreated"])
 if 'Version' in root.attrib:
  Version = (attributes["Version"])
 ##--------- get internal sig details ------------------
 for a in range (len(root[0])):  #loops for sig ID
  attributes = root[0][a].attrib
  SigID=(attributes["ID"])
  SigSpecificity = (attributes["Specificity"])
  for b in range (len(root[0][a])):  # loops for sequence pattern inside each sig
   attributes = root[0][a][b].attrib
   if 'Reference' in root[0][a][b].attrib: 
    ByteSeqReference = (attributes["Reference"])
   else:
    ByteSeqReference = "NULL"  
   attributes = root[0][a][b][0].attrib
   if 'MinFragLength' in root[0][a][b][0].attrib:
    MinFragLength=(attributes["MinFragLength"])
   else: 
    MinFragLength=''
   if 'Position' in root[0][a].attrib:
    Position=(attributes["Position"])
   else:
    Position=''
   if 'SubSeqMaxOffset' in root[0][a][b][0].attrib:
    SubSeqMaxOffset=(attributes["SubSeqMaxOffset"])
   else:
    SubSeqMaxOffsee = ''  
   if 'SubSeqMinOffset' in root[0][a][b][0].attrib:
    SubSeqMinOffset=(attributes["SubSeqMinOffset"])
   else:
    SubSeqMinOffset = ''     
   Pattern = root[0][a][b][0][0].text
   packedPatterns =     [Version,DateCreated,SigID,SigSpecificity,ByteSeqReference,MinFragLength,Position,SubSeqMaxOffset,SubSeqMinOffset,Pattern]
   doPatternPush(packedPatterns)
##-------- get format ID details-------------
 for a in range (len(root[1])):
  attributes = root[1][a].attrib
  if 'ID' in root[1][a].attrib:
   FormatID = (attributes['ID'])
  else:
   FormatID = "NULL" 
  if 'Name' in root[1][a].attrib:
   FormatName = (attributes['Name'])
  else:
   FormatName = "NULL" 
  if 'PUID' in root[1][a].attrib:
   PUID = (attributes['PUID'])
  else:
   PUID = "NULL" 
  if 'Version' in root[1][a].attrib:
   FormatVersion = (attributes['Version'])
  else:
   FormatVersion = "NULL" 
  if 'MIMEType' in root[1][a].attrib:
   FormatMIMEType = (attributes['MIMEType'])
  else:
   FormatMIMEType = "NULL"  
  InternalSignatureID,Extension,HasPriorityOverFileFormatID = ('', 'NULL', '') 
  for b in range (len(root[1][a])): #extracts the tags for each format ID
   tagType = root[1][a][b].tag
   tagText = root[1][a][b].text
   tagType = re.sub('{http://www.nationalarchives.gov.uk/pronom/SignatureFile}', '', tagType)
   if tagType == 'InternalSignatureID':
    InternalSignatureID = tagText
   elif tagType == 'Extension':
    Extension = tagText
    HasPriorityOverFileFormatID = ''
   else:
    HasPriorityOverFileFormatID = tagText
    Extension = 'NULL' 
   packedFormats = [Version,DateCreated,FormatID,FormatName,PUID,FormatVersion,FormatMIMEType,InternalSignatureID,Extension,HasPriorityOverFileFormatID]
   doFormatsPush(packedFormats)
 if __name__ == "__main__":
 path = "C:\Users\NDHA\Desktop\droid sigs all"
 for (path, dirs, files) in os.walk(path):
  for file in files:
   sigfile_filename = str(path)+"\\"+str(file)
   doParser(sigfile_filename) 
   print sigfile_filename
 db.close()

所有XML都来自此处：http://www.nationalarchives.gov.uk/aboutapps/pronom/droid-signature-files.htm

Answer 1

你得到的错误告诉你究竟出了什么问题

NameError: global name 'sys' is not defined

你的python文件中没有import sys。

对于db连接，如果您的套接字未放在/tmp/mysql.sock中，则可以在尝试使用unix_socket参数连接到db时指定查找位置。

尝试：

db = MySQLdb.connect (unix_socket = 'path_to_sock', host = "localhost", 
                      user = "root", passwd = "", db = "sigfiles")

将'path_to_sock'替换为mysql sock的实际路径。

如果不是问题，您应该检查的其他内容：

检查以确保用户名/密码组合正确
尝试停止并重新启动mysqld服务
检查错误日志文件以查找更具体的错误

Answer 2

这是你的第一个错误：

错误2003：无法连接到'localhost'（10055）
上的MySQL服务器

似乎你在某些时候与MySQL断开连接。检查您的代码，看看您是否明确或隐含地断开与服务器的连接，并检查您的MySQL服务器是否仍在监听连接...也许您从应用程序外部查杀服务器......谁知道？：）

MYSQL - 服务器在脚本中途退出

2 个答案: