Andrew Sherman has uploaded a new patch set (#3). ( http://gerrit.cloudera.org:8080/11459 )
Change subject: IMPALA-589: Add sql function returning the impalad coordinator hostname. ...................................................................... IMPALA-589: Add sql function returning the impalad coordinator hostname. In every execution of an Impala query, one of the impalad daemons acts as the coordinator node. In some cases, such as when using a proxy, a user cannot predict which host will act as the coordinator. To aid in diagnosis, we provide a sql function which returns the name of the host on which the coordinator is running. EXTERNAL DESCRIPTION: Add a builtin function called coordinator(), which returns the name of the host which is running the impalad that is acting as the coordinator for the current query. TESTING: - Added a basic unit test for the new function. - Added a unit test which simulates the case when coord_address is unset. - Added a query that uses coordinator() to exprs.test - Hand tested in a development deployment. - Ran regression tests and got a clean run. Change-Id: I94d6e2664ba659b48df53c5c06f67b502c533e47 --- M be/src/exprs/expr-test.cc M be/src/exprs/utility-functions-ir.cc M be/src/exprs/utility-functions.h M common/function-registry/impala_functions.py M docs/topics/impala_misc_functions.xml M testdata/workloads/functional-query/queries/QueryTest/exprs.test 6 files changed, 66 insertions(+), 0 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/59/11459/3 -- To view, visit http://gerrit.cloudera.org:8080/11459 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I94d6e2664ba659b48df53c5c06f67b502c533e47 Gerrit-Change-Number: 11459 Gerrit-PatchSet: 3 Gerrit-Owner: Andrew Sherman <asher...@cloudera.com> Gerrit-Reviewer: Andrew Sherman <asher...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Thomas Marshall <thomasmarsh...@cmu.edu> Gerrit-Reviewer: Zoram Thanga <zo...@cloudera.com>
