smengcl commented on PR #10235:
URL: https://github.com/apache/ozone/pull/10235#issuecomment-4513118562
> The current patch seems to compare the contents of a snapshot and live OM.
The intent of the JIRA seems to be to verify the integrity of snapshots after
defrag iterations. Ex.,
>
> ```
> Setup - Take snapshots : S1(at T1) S2(at T2)
S3(at T3)
>
> Test#1:
> Run Defrag Iteration#1: S1' = compact(S1) S2' = S1' +
diff(S1, S2) S3' = S1' + diff(S1, S2) + diff(S2, S3)
> Verify contents: S1' == S1 S2'
== S2 S3' == S3
>
> Test#2:
> Delete S2
> Run Defrag Iteration#2: S2'' = compact(S2') S3'' = S2''
+ diff(S2, S3)
> Verify contents: S2'' == S2
S3'' == S3
> ```
>
> cc @smengcl could you confirm?
@SaketaChalamchala you are right. The intention of the jira is to check
defrag integrity before and after. Sorry if it the wording was confusing.
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