This change makes the fetch rpc interruptable. If the user cancels the query in
the middle of a fetch, the shell reconnects to the impalad and closes the
query. It also includes some code consolidation.
Change-Id: Iaaf0dfd4cba9ce2557e4a7d0447bc9c3ffda5e29
Reviewed-on: http://gerrit.ent.cloudera.com:8080/717
Reviewed-by: Ishaan Joshi <ishaan@cloudera.com>
Tested-by: jenkins
This change has the following additions:
- If the user's connecting to a kerberized impalad, the Impala shell will check
whether a valid ticket exists by running 'klist -s'. If a valid ticket is not found,
then the shell will exit with an appropriate error message on the commandline.
- If the user's connecting to a kerberized impalad without the '-k' option, the Impala
Shell will issue a 'klist -s' to check if there are valid kerberos tickets in the
credentials cache. If a valid ticket is found, it will retry the connection with
kerberos enabled.
- The Impala shell encodes strings entered on the commandline as unicode. The sasl
module expects ascii strings as arguments. Explcitly encode any string sent to the
sasl module to ascii.
Change-Id: I1799b1e7988a19fa513b683afe1e3b66b68c1ffc
Reviewed-on: http://gerrit.ent.cloudera.com:8080/535
Reviewed-by: Ishaan Joshi <ishaan@cloudera.com>
Tested-by: Ishaan Joshi <ishaan@cloudera.com>
