12-05-2018 02:59 AM
We have different applications/scripts that are fetching data via Impala.
These are jdbc connections. The output of the queries ends up with exceptions
Caused by: com.cloudera.support.exceptions.GeneralException: [Simba][ImpalaJDBCDriver](500051) ERROR processing query/statement. Error Code: null, SQL state: HY000,
The issue gets resolved after a service restart of Impala.
Is there a way to check how many open connections ? Please let us know.
Thanks and regards
12-23-2018 03:33 PM
You might also create triggers in CM by going to CM > Impala > Charts on the right hand side > Queries Across Impala Daemons
And then follow on screen instructions.
More details here: