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https://issues.apache.org/jira/browse/HDFS-9941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15191356#comment-15191356
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Chris Nauroth commented on HDFS-9941:
-------------------------------------
The Checkstyle warning is not practical to address in scope of this patch. The
test failures are unrelated.
While reviewing this, I squinted at the static {{Block#toString}} method for an
hour thinking that I was misunderstanding something about the way Java dynamic
dispatch works. It turns out no, my understanding is fine, and HDFS-9350
introduced a bug in that method. This isn't directly related to the HDFS-9941
patch though, so I left a comment on HDFS-9350 for follow-up.
I am +1 for patch v003 going into trunk, but it doesn't merge cleanly to
branch-2. [~arpitagarwal], would you please post a patch for
branch-2/branch-2.8? Thank you.
> Do not log StandbyException on NN, other minor logging fixes
> ------------------------------------------------------------
>
> Key: HDFS-9941
> URL: https://issues.apache.org/jira/browse/HDFS-9941
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.8.0
> Reporter: Arpit Agarwal
> Assignee: Arpit Agarwal
> Attachments: HDFS-9941.01.patch, HDFS-9941.02.patch,
> HDFS-9941.03.patch
>
>
> The NameNode can skip logging StandbyException messages. These are seen
> regularly in normal operation and convey no useful information.
> We no longer log the locations of newly allocated blocks in 2.8.0. The DN IDs
> can be useful for debugging so let's add that back.
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