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https://issues.apache.org/jira/browse/HIVE-338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716655#action_12716655
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Joydeep Sen Sarma commented on HIVE-338:
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there's a singleton sessionstate per thread that captures session settings.
thread can switch from one session to another.
yes - the variables in SessionState are pseudo global variables - but this is
easier to organize than passing those properties to each and every method. Do
you consider the System object in Java to be an abuse of global variables? Or
do you consider environment variables and system properties available globally
to processes as things that prevent reuse? If you look at the things that are
part of sessionstate - they are similar in nature (input/output streams, list
of systemwide resources and so on).
this is of course open-source and re-writes are as welcome as any other
contribution. i have not been a heavy user of thrift myself so cannot comment
on its speed. it would be easy enough to write more rpc layers on top of hive
if required. however - the current problems in the threaded server code need
immediate fixing since users are trying to use it right now. probably we will
have to do this as part of a separate jira.
> Executing cli commands into thrift server
> -----------------------------------------
>
> Key: HIVE-338
> URL: https://issues.apache.org/jira/browse/HIVE-338
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Server Infrastructure
> Affects Versions: 0.3.0
> Reporter: Min Zhou
> Attachments: hiveserver-v1.patch
>
>
> Let thrift server support set, add/delete file/jar and normal HSQL query.
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