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https://issues.apache.org/jira/browse/HIVE-16354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-16354:
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Description:
This would enable:
* to *not* ship unneeded things for the api users...the jdbcdriver contains a
hiveserver2 with the full hive runtime and a metastore with the orm...all these
are not neccessary
* make it easier for the api users to integrate with hive, because it wouldnt
pull in transitively garbage
* would make it clear that where is the line...by enforcing the usage of these
modules internally - it would make the external api for the users really usable
- this is especcialy true for metastore; which currently have deep ties with
the ql module.
in HIVE-16214 I've identified some pieces which might be good to move to new
modules...since that I've looked into it a bit more what could be done in this
aspect...and to prevent going backward in this path; or get stuck at some point
- I would like to be able to propose smaller changes prior to creating any
modules...
The goal here is to remove the unneeded dependencies from the modules which
doesn't necessarily need them: the biggest fish in this tank is the {{jdbc}}
module, which currently ships with full hiveserver server side + all of the ql
codes + the whole metastore (including the jpa persistence libs) - this makes
the jdbc driver a really fat jar...
These changes will also reduce the hive binary distribution size; introducing
service-client have reduce it by 20% percent alone.
was:
in HIVE-16214 I've identified some pieces which might be good to move to new
modules...since that I've looked into it a bit more what could be done in this
aspect...and to prevent going backward in this path; or get stuck at some point
- I would like to be able to propose smaller changes prior to creating any
modules...
The goal here is to remove the unneeded dependencies from the modules which
doesn't necessarily need them: the biggest fish in this tank is the {{jdbc}}
module, which currently ships with full hiveserver server side + all of the ql
codes + the whole metastore (including the jpa persistence libs) - this makes
the jdbc driver a really fat jar...
These changes will also reduce the hive binary distribution size; introducing
service-client have reduce it by 20% percent alone.
> Make hive internal parts more private - avoid exposing them for
> jdbc/metastore api users
> ----------------------------------------------------------------------------------------
>
> Key: HIVE-16354
> URL: https://issues.apache.org/jira/browse/HIVE-16354
> Project: Hive
> Issue Type: Improvement
> Components: Metastore, Server Infrastructure
> Reporter: Zoltan Haindrich
> Attachments: allinwonder.1.patch, allinwonder.2.patch,
> allinwonder.3.patch, allinwonder.4.patch
>
>
> This would enable:
> * to *not* ship unneeded things for the api users...the jdbcdriver contains a
> hiveserver2 with the full hive runtime and a metastore with the orm...all
> these are not neccessary
> * make it easier for the api users to integrate with hive, because it wouldnt
> pull in transitively garbage
> * would make it clear that where is the line...by enforcing the usage of
> these modules internally - it would make the external api for the users
> really usable - this is especcialy true for metastore; which currently have
> deep ties with the ql module.
> in HIVE-16214 I've identified some pieces which might be good to move to new
> modules...since that I've looked into it a bit more what could be done in
> this aspect...and to prevent going backward in this path; or get stuck at
> some point - I would like to be able to propose smaller changes prior to
> creating any modules...
> The goal here is to remove the unneeded dependencies from the modules which
> doesn't necessarily need them: the biggest fish in this tank is the {{jdbc}}
> module, which currently ships with full hiveserver server side + all of the
> ql codes + the whole metastore (including the jpa persistence libs) - this
> makes the jdbc driver a really fat jar...
> These changes will also reduce the hive binary distribution size; introducing
> service-client have reduce it by 20% percent alone.
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