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https://issues.apache.org/jira/browse/IMPALA-2647?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17107530#comment-17107530
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Tim Armstrong commented on IMPALA-2647:
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[~stigahuang] do you know if this is still an issue?
> Use a more compact serialization/deserialization protocol layer for Thrift
> --------------------------------------------------------------------------
>
> Key: IMPALA-2647
> URL: https://issues.apache.org/jira/browse/IMPALA-2647
> Project: IMPALA
> Issue Type: Improvement
> Components: Perf Investigation
> Affects Versions: Impala 2.2.4
> Reporter: Dimitris Tsirogiannis
> Priority: Minor
> Labels: performance, usability
>
> Currently, when we serialize/deserialize Thrift objects in the FE we use the
> default binary protocol, TBinaryProtocol. However, Thrift specifies other
> more efficient and compact binary protocols such as TCompactProtocol and
> TDenseProtocol which can help reduce the memory footprint of serialized
> thrift objects especially for large tables with lots of metadata.
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