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From "Bharath Vissapragada (Code Review)" <>
Subject [Impala-ASF-CR] IMPALA-4822: Implement dynamic log level changes
Date Tue, 28 Feb 2017 06:41:25 GMT
Bharath Vissapragada has posted comments on this change.

Change subject: IMPALA-4822: Implement dynamic log level changes

Patch Set 13:

(1 comment)
File be/src/util/

Line 40
> This mechanism exists so that we can configure Impala's logging in one plac
> I don't think we should introduce the burden of having them configured separately - is
that what this change now implies? 

No. the users can still configure it from a single place 

> Is trace logging off by default? 

TRACE logging is ON/OFF depending on how users configure GLOG (ex: JniCatalog/JniFrontend
still call GlogAppender.Install() based on --v). 

> We should expect that 95% of deployments won't use this feature for fine-grained control,
so the out-of-the-box behaviour has to be good enough for them.

Yes. Like I mentioned above, this patch doesn't break any existing way of configuring logging.
We still configure it using the central GLOG config.

I think there is some disconnect in my understanding here. This patch doesn't break any existing
ways per my understanding. May be we can chat offline to clear it out. Apologies for the back
and forth.

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Gerrit-MessageType: comment
Gerrit-Change-Id: I588418e9bcb0b66d33138baf96207a5a35bfbd63
Gerrit-PatchSet: 13
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Bharath Vissapragada <>
Gerrit-Reviewer: Alex Behm <>
Gerrit-Reviewer: Bharath Vissapragada <>
Gerrit-Reviewer: Dimitris Tsirogiannis <>
Gerrit-Reviewer: Henry Robinson <>
Gerrit-Reviewer: Marcel Kornacker <>
Gerrit-HasComments: Yes

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