HBase Java API remote Access Kerberos authentication

Hbaseconnker.java

1  PackageBigdata.conn;2 3 ImportBigData.utils.resource.ResourcesUtils;4 Importorg.apache.hadoop.conf.Configuration;5 Importorg.apache.hadoop.hbase.HBaseConfiguration;6 Importorg.apache.hadoop.hbase.client.Connection;7 Importorg.apache.hadoop.hbase.client.ConnectionFactory;8 Importorg.apache.hadoop.security.UserGroupInformation;9 Ten Importjava.io.IOException; One ImportJava.io.InputStream; A ImportJava.nio.file.Files; - Importjava.nio.file.Paths; - Importjava.util.Properties; the  -  Public classHbaseconnker { -  -     Private StaticConnection Connectionker =NULL; +  -     Private Static volatileHbaseconnker Instanceker; +  A     PrivateHbaseconnker () { at         Try { -Properties Pro = Resourcesutils.getresourceasproperties ("Kerberos/hbaseconfigker.properties"); -  -         /*This configuration file mainly records the relevant configuration information of Kerberos, such as which IP is the KDC? Which realm is the default?  - This file was copied from the remote server.*/ -System.setproperty ("java.security.krb5.conf", Pro.getproperty ("java.security.krb5.conf")); in  -Configuration conf =hbaseconfiguration.create (); to  +             //-----Kerberos Configuration----- -InputStream Hbasesiteinputstream = Files.newinputstream (Paths.get (Pro.getproperty ("Hbase.site")))); the             if(Hbasesiteinputstream = =NULL) { *System.out.println ("The Hbase-site.xml is null!"); $             }Panax Notoginseng Conf.addresource (hbasesiteinputstream); -Conf.set ("Hadoop.security.authentication", Pro.getproperty ("Hadoop.security.authentication")); the  +             //This can be understood as user name information, which is principal AConf.set ("Kerberos.principal", Pro.getproperty ("Kerberos.principal")); the  + usergroupinformation.setconfiguration (conf); -Usergroupinformation.loginuserfromkeytab (Pro.getproperty ("Kerberos.principal"), $Pro.getproperty ("Kerberos.keytab")); $             // ---------- -  -             //Show connected Servers theSYSTEM.OUT.PRINTLN ("Connect server:" +conf.get ("Hbase.zookeeper.quorum"))); - WuyiConnectionker =connectionfactory.createconnection (conf); theSYSTEM.OUT.PRINTLN ("Create connection Success! "); -}Catch(IOException e) { Wu e.printstacktrace (); -         } About  $     } -  -      Public StaticConnection getconnection () { -         returnConnectionker; A     } +  the      Public StaticHbaseconnker getistance () { -         //defines a common static method that returns an instance of the type $         if(Instanceker = =NULL) { the             //when an object is instantiated (without using a synchronous block of code, instance is not equal to NULL, the object is returned directly, improving operational efficiency) the             synchronized(Hbaseconnker.class) { the                 //Synchronizing code blocks (when an object is not initialized, use a synchronous block of code to guarantee that the object will not be created again after the first creation of the multi-threaded access) the                 if(Instanceker = =NULL) { -                     //Uninitialized , the initial instance variable inInstanceker =NewHbaseconnker (); the                 } the             } About         } the         returnInstanceker; the     } the}

Hbaseconfigker.properties

# HBase Confighbase.zookeeper.quorum=20.1.1.93hbase.zookeeper.property.clientport=2181java.security.krb5.conf= src/main/resources/kerberos/krb5.confhadoop.security.authentication=kerberoshbase.site=src/main/resources/ Kerberos/hbase-site.xmlkerberos.keytab=src/main/resources/kerberos/xxx.keytab[email protected]

HBase Java API remote Access Kerberos authentication