I want to get a large table from an Hive2/Hadoop cluster with R. I'n not quite sure on the values that I have to fill. On Cloudera WorkBench, we don't need to do a   kinit   to get our ticket.     cdsw@myMachine:~$ klist Ticket cache: FILE:/tmp/krb5cc_8536 Default principal: MYUSER@AAA.COM Valid starting Expires Service principal 02/05/20 15:45:12 02/06/20 01:45:12 krbtgt/BBB.COM@AAA.COM renew until 02/12/20 15:45:09       So I have a valid ticket. Now here what I have for my code in CDSW (R):     library(DBI) library(rJava) library(RJDBC) # Loading Hive2 driver from cloudera driver <- JDBC('org.apache.hive.jdbc.HiveDriver', classPath = list.files("/opt/cloudera/parcels/CDH-5.13.3-1.cdh5.13.3.p0.2/jars/",pattern="jar$",full.names=T), identifier.quote="`") HOSTNAME <- "my.super.host.from.aws.my-company.com" PORT <- 10000 server <- sprintf("jdbc:hive2://%s:%s/default;principal=hive/BBB.COM@AAA.COM", HOSTNAME, PORT) conn <- dbConnect(driver, server, "", "") # No user/password     I get This error: INFO jdbc.Utils: Supplied authorities: my.super.host.from.aws.my-company.com:10000 INFO jdbc.Utils: Resolved authority: my.super.host.from.aws.my-company.com:10000 ERROR transport.TSaslTransport: SASL negotiation failure javax.security.sasl.SaslException: GSS initiate failed [Caused by GSSException: No valid credentials provided (Mechanism level: Failed to find any Kerberos tgt)]     Here is what I'm unsure of, is my server variable correct? Did I mess up the REALM?     "jdbc:hive2:/my.super.host.from.aws.my-company.com:10000/default;principal=hive/BBB.COM@AAA.COM"     Maybe i'm missing something, i've also tried using  AuthMech=1;KrbRealm=AAA.COM;KrbHostFQDN=BBB.COM;KrbServiceName=hive  instead of  principal=hive , but no success.   Other Info, the Java version :      $JAVA_HOME = /usr/java/jdk1.8.0_121-cloudera     ... View more