Error: Failed to Conncet to Hiveserver2
Good morning, We have a problem with the following error:
additionally these errors also appear
I appreciate your collaboration since it has not been possible to give solution and it is more and more recurrent
thank you very much for your help
Edwin Garzón
Answers
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Ignacio_Toledo Dataiku DSS Core Designer, Dataiku DSS Core Concepts, Neuron 2020, Neuron, Registered, Dataiku Frontrunner Awards 2021 Finalist, Neuron 2021, Neuron 2022, Frontrunner 2022 Finalist, Frontrunner 2022 Winner, Dataiku Frontrunner Awards 2021 Participant, Frontrunner 2022 Participant, Neuron 2023 Posts: 415 NeuronHi @Egarzon
,We started not so long ago to use a Hadoop stack (hdfs / hive / spark) with DSS. From the first set of logs you are showing this seems like a problem in the hive server.
We got the same kind of problems at the beginning, and they were found to be related to problems with the memory management of the Hive server. We could notice that the problems were not from the DSS side because the whole hive server was down usually (until it re-scaled itself to restart).
So that would be the first thing to check. If the hive server is still up, then there could be a problem with the network connection (either a configuration problem or a hardware problem). The kind of messages that you are getting later also seem to point in the same direction (specially when you see the error to connect to DSS).
If you don't find the problem there, then the next step would be to create a support ticket with Dataiku, as it doesn't seem as an easy to reproduce problem.
Hope this helps, and good luck