Traitement de données massives
John Samuel
                          CPE Lyon
                        Year: 2020-2021
                        Email: john(dot)samuel(at)cpe(dot)fr
                        
 
                            
                       
		      
                            
                           
                            
                           
                         
                         
                         
                        
                     $ tail /var/log/apache2/access.log
                   
                   
127.0.0.1 - - [14/Nov/2018:14:46:49 +0100] "GET / HTTP/1.1" 200 3477 "-"
         "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0"
127.0.0.1 - - [14/Nov/2018:14:46:49 +0100] "GET /icons/ubuntu-logo.png HTTP/1.1" 304 180 "http://localhost/"
         "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0"
127.0.0.1 - - [14/Nov/2018:14:46:49 +0100] "GET /favicon.ico HTTP/1.1" 404 294 "-"
         "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:63.0) Gecko/20100101 Firefox/63.0"
                   
		
                     $ tail /var/log/apache2/error.log
                   
                   
[Wed Nov 14 09:53:39.563044 2018] [mpm_prefork:notice] [pid 849]
         AH00163: Apache/2.4.29 (Ubuntu) configured -- resuming normal operations
[Wed Nov 14 09:53:39.563066 2018] [core:notice] [pid 849]
         AH00094: Command line: '/usr/sbin/apache2'
[Wed Nov 14 11:35:35.060638 2018] [mpm_prefork:notice] [pid 849]
         AH00169: caught SIGTERM, shutting down
                   
		 
                            
                            
                           
                    $ cat /etc/apache2/apache2.conf
                   
                   
LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined
LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined
LogFormat "%h %l %u %t \"%r\" %>s %O" common
LogFormat "%{Referer}i -> %U" referer
LogFormat "%{User-agent}i" agent
                   
		
[
  {
    "languageLabel": "ENIAC coding system",
    "year": "1943"
  },
  {
    "languageLabel": "ENIAC Short Code",
    "year": "1946"
  },
  {
    "languageLabel": "Von Neumann and Goldstine graphing system",
    "year": "1946"
  }
]			
		
<?xml version="1.0" encoding="UTF-8"?>
<root>
   <element>
      <languageLabel>ENIAC coding system</languageLabel>
      <year>1943</year>
   </element>
   <element>
      <languageLabel>ENIAC Short Code</languageLabel>
      <year>1946</year>
   </element>
   <element>
      <languageLabel>Von Neumann and Goldstine graphing system</languageLabel>
      <year>1946</year>
   </element>
</root>
			
		languageLabel,year ENIAC coding system,1943 ENIAC Short Code,1946 Von Neumann and Goldstine graphing system,1946
Il est impossible sur un système informatique de calcul distribué de garantir en même temps (c'est-à-dire de manière synchrone) les trois contraintes suivantes
.png) 
                            
                         
                        | num | languageLabel | year | 
|---|---|---|
| 1 | ENIAC coding system | 1943 | 
| 2 | ENIAC Short Code | 1946 | 
| 3 | Von Neumann and Goldstine graphing system | 1946 | 
ENIAC coding system:1; ENIAC Short Code:2 Von Neumann and Goldstine graphing system:3 1943:1; 1946:2; 1946:3
  {
    "languageLabel": "ENIAC coding system",
    "year": "1943"
  }
  {
    "languageLabel": "ENIAC Short Code",
    "year": "1946"
  }
  {
    "languageLabel": "Von Neumann and Goldstine graphing system",
    "year": "1946"
  }
			
		| identifiant | languageLabel,year | 
|---|---|
| p1 | ENIAC coding system,1943 | 
| p2 | ENIAC Short Code,1946 | 
| p3 | Von Neumann and Goldstine graphing system,1946 | 
 
			   
                        import requests
url = "https://api.github.com/users/johnsamuelwrites"
response = requests.get(url)
print(response.json())
 
			   
<xs:schema attributeFormDefault="unqualified"
      elementFormDefault="qualified" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="root" type="rootType"/>
  <xs:complexType name="elementType">
    <xs:sequence>
      <xs:element type="xs:string" name="languageLabel"/>
      <xs:element type="xs:short" name="year"/>
    </xs:sequence>
  </xs:complexType>
  <xs:complexType name="rootType">
    <xs:sequence>
      <xs:element type="elementType" name="element" maxOccurs="unbounded" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>
</xs:schema>
			
		| num | languageLabel | year | 
|---|---|---|
| 1 | ENIAC coding system | 1943 | 
\({num}\rightarrow{languageLabel}\)
\({languageLabel}\rightarrow{year}\)
\({num}\rightarrow{year}\)
 
                      
                      
                      
                           
                         
                           
                           
                           
                           
                         
                          