[
https://issues.apache.org/jira/browse/IMPALA-15234?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aleksandr Efimov reassigned IMPALA-15234:
-----------------------------------------
Assignee: Aleksandr Efimov
> Provide a way to clear HBO cache
> --------------------------------
>
> Key: IMPALA-15234
> URL: https://issues.apache.org/jira/browse/IMPALA-15234
> Project: IMPALA
> Issue Type: New Feature
> Components: Backend
> Reporter: Quanlong Huang
> Assignee: Aleksandr Efimov
> Priority: Major
>
> We should provide a command (in impala-shell) or WebUI endpoint to clear HBO
> stats, in case when "bad" stats are stored, to prevent poisoning future query
> plans.
> In e2e tests while testing expected HBO stats are stored, we also need this
> to clear the cache, to make sure they are not accidentially stored by
> previous queries.
> The HBO cache are keyed by hash strings so it's hard to identify which keys
> belong to a specific table. As a first step, we should at least support
> clearing the entire cache.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
