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https://issues.apache.org/jira/browse/IMPALA-12573?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17819452#comment-17819452
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Maxwell Guo commented on IMPALA-12573:
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[~stigahuang]Thanks for your reply. I think load_dbs_in_background and
load_tables_in_background may help.
But maybe I didn't understand your expression clearly, does this two
configurations should be string that just like table/db black list , if some
one want some tables be always loaded. These configurations are not going to be
boolean flags , am I right ?
> Give configuration load_catalog_in_background more fine-grained configuration
> -----------------------------------------------------------------------------
>
> Key: IMPALA-12573
> URL: https://issues.apache.org/jira/browse/IMPALA-12573
> Project: IMPALA
> Issue Type: Improvement
> Components: Catalog
> Reporter: Maxwell Guo
> Assignee: Maxwell Guo
> Priority: Minor
>
> As we know if load_catalog_in_background set to true, then the table meta
> will load async for catalogd.
> During this period when catalogd starts up, if the flag set to true, then all
> the table will load async, then the queue will be big . So we may left it to
> false by deafult. But if we invalidate some table manually ,we may want them
> to load . So I think we can introduce a new flag
> load_catalog_in_background_at_startup , we can set
> load_catalog_in_background_at_startup to false, and
> load_catalog_in_background to true by default.
>
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