You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@kylin.apache.org by "steven zhang (JIRA)" <ji...@apache.org> on 2015/07/23 10:32:04 UTC
[jira] [Updated] (KYLIN-904) Recursive queries to method
collectResourceRecursively(ResourceStore.java) is not necessary
[ https://issues.apache.org/jira/browse/KYLIN-904?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
steven zhang updated KYLIN-904:
-------------------------------
Description:
it is not necessary collect Resource Recursively when kylin load metadata to cache
because the path of Resource in table kylin_metadata such as /cube , /cube_desc etc. is not prefix structure as follow example
/a/b
/a/b/xx
/a/b/xx/xx
/a/b/yy/yy
/a/c
even it have the prefix structure also it is unnecessary
for example it will get all the records with prefix ‘a/b’ when query ‘a/b’
/a/b
/a/b/xx
/a/b/xx/xx
/a/b/yy/yy
when query ’/a/b/xx‘ it will return children of it
/a/b/xx/xx (it already queried before)
so it is not necessary to query path of resource recursively
was:
it is not necessary collect Resource Recursively when kylin load metadata to cache
because the path of Resource in table kylin_metadata such as /cube , /cube_desc etc. is not prefix structure as follow example
/a/b
/a/b/xx
/a/b/xx/xx
/a/b/yy/yy
/a/c
even it have the prefix structure also it is unnecessary
for example it will get all the records with prefix ‘a/b’ when query ‘a/b’
/a/b
/a/b/xx
/a/b/xx/xx
/a/b/yy/yy
when query ’/a/b/xx‘ it will return children of it
/a/b/xx/xx (it already queried before)
so it is not necessary to query path of resource
> Recursive queries to method collectResourceRecursively(ResourceStore.java) is not necessary
> -------------------------------------------------------------------------------------------
>
> Key: KYLIN-904
> URL: https://issues.apache.org/jira/browse/KYLIN-904
> Project: Kylin
> Issue Type: Improvement
> Affects Versions: 0.7.1
> Reporter: steven zhang
> Priority: Minor
> Labels: github-import
> Fix For: 0.7.1
>
>
> it is not necessary collect Resource Recursively when kylin load metadata to cache
> because the path of Resource in table kylin_metadata such as /cube , /cube_desc etc. is not prefix structure as follow example
> /a/b
> /a/b/xx
> /a/b/xx/xx
> /a/b/yy/yy
> /a/c
> even it have the prefix structure also it is unnecessary
> for example it will get all the records with prefix ‘a/b’ when query ‘a/b’
> /a/b
> /a/b/xx
> /a/b/xx/xx
> /a/b/yy/yy
> when query ’/a/b/xx‘ it will return children of it
> /a/b/xx/xx (it already queried before)
> so it is not necessary to query path of resource recursively
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)