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https://issues.apache.org/jira/browse/HADOOP-13873?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16153296#comment-16153296
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Steve Loughran commented on HADOOP-13873:
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yes, that'd work...we wouldn't be logging it except on debug, so eliminating
rdns on the main path
but, we should use {{NetUtils.createSocketAddrForHost()}} for its handling of
problems, even if that doesn't quite match what's going on in URL handling.
> log DNS addresses on s3a init
> -----------------------------
>
> Key: HADOOP-13873
> URL: https://issues.apache.org/jira/browse/HADOOP-13873
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Priority: Minor
>
> HADOOP-13871 has shown that network problems can kill perf, and that it's v.
> hard to track down, even if you turn up the logging in hadoop.fs.s3a and
> com.amazon layers to debug.
> we could maybe improve things by printing out the IPAddress of the s3
> endpoint, as that could help with the network tracing. Printing from within
> hadoop shows the one given to S3a, not a different one returned by any load
> balancer.
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