Support Questions
Find answers, ask questions, and share your expertise
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

impala cache

impala cache

New Contributor

i created table by impala,when i apend data in this file by "hadoop append",but i can not select data what i append. i must refresh data.why?

thank you very much!


Re: impala cache


Impala caches metadata to minimize load on the NN. We're thinking about ways to automatically detect when metadata might have changed but for now, you will need to issue refresh if the files change.

Don't have an account?
Coming from Hortonworks? Activate your account here