Quanlong Huang has posted comments on this change. ( 
http://gerrit.cloudera.org:8080/18792 )

Change subject: IMPALA-11457 Fix regression with unknown disk id
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Patch Set 1: Code-Review+2

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> > > > > Nice finding! Can we reveal the bug using existing test data? Or does 
> > > > > it only happen on Ozone?
> > > >
> > > > I don't know of a case with HDFS where the storage ID is unknown. Maybe?
> > >
> > > I think cloud storages like S3 will have unknown disk id as -1. But now 
> > > sure if we actually use it.
> > >
> > > If this can't be revealed by existing test data, maybe it won't worth a 
> > > separated patch and we can merge it with the ozone patch.
> >
> > That's fair, I can't think of any way this would show up outside of Ozone. 
> > The main implication seems to be that local reads don't get assigned 
> > individual read queues, and we only get into that scenario with Ozone.
>
> I'm tempted to leave it separate though because Ozone is usable in Impala 
> already, so this is an issue customers could run into. The other ticket is 
> all internal dev/test work.

Ah, that makes sense. It seems that we can't add tests due to missing Ozone in 
the test cluster. I'm ok to merge this without tests.


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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: comment
Gerrit-Change-Id: I571ac0669ceb6a42561594c3f96723d5ed293902
Gerrit-Change-Number: 18792
Gerrit-PatchSet: 1
Gerrit-Owner: Michael Smith <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Quanlong Huang <[email protected]>
Gerrit-Comment-Date: Fri, 29 Jul 2022 01:12:29 +0000
Gerrit-HasComments: No

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