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https://issues.apache.org/jira/browse/HADOOP-13998?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16038691#comment-16038691
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Steve Loughran commented on HADOOP-13998:
-----------------------------------------

bq. Actually I believe a few of those tests had transient failures at a fairly 
consistent rate (something like 1 in 4 or 1 in 6 test runs if I remember 
correctly) that had always been assumed to be the result of inconsistency. They 
stopped failing entirely once the initial work for list-after-put consistency 
was incorporated.

yes. That's why our docs on using s3 as a dest now say "dont". The big test 
runs fail as they have validation of the output and catch problems. Other 
people's apps may not do that validation, so end up getting bad data & not 
noticing

> initial s3guard preview
> -----------------------
>
>                 Key: HADOOP-13998
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13998
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>            Reporter: Steve Loughran
>
> JIRA to link in all the things we think are needed for a preview/merge into 
> trunk



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