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https://issues.apache.org/jira/browse/CALCITE-1654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15879235#comment-15879235
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Josh Elser commented on CALCITE-1654:
-------------------------------------
Put up a pull-request with the trivial change..
https://github.com/apache/calcite/pull/380
> Serialized messages are generated even though they are not logged
> -----------------------------------------------------------------
>
> Key: CALCITE-1654
> URL: https://issues.apache.org/jira/browse/CALCITE-1654
> Project: Calcite
> Issue Type: Bug
> Components: avatica
> Reporter: Sergey Soldatov
> Assignee: Josh Elser
> Priority: Critical
> Fix For: avatica-1.10.0
>
>
> [~sergey.soldatov] made a good find through some careful log reading.
> In ProtobufTranslationImpl, some TRACE logging that I had added in
> CALCITE-1159 is causing a bunch of garbage to be created on the heap.
> The trace logging messages should be wrapped in a conditionals to avoid the
> generation of the message itself. I was a little too overzealous thinking
> that the slf4j api was saving me.
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