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https://issues.apache.org/jira/browse/HDFS-13435?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16439683#comment-16439683
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Íñigo Goiri commented on HDFS-13435:
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[^HDFS-13435.003.patch] LGTM.
We can tune these in the future if we think they are too verbose.
For now, this should be good.
> RBF: Improve the error loggings for printing the stack trace
> ------------------------------------------------------------
>
> Key: HDFS-13435
> URL: https://issues.apache.org/jira/browse/HDFS-13435
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Affects Versions: 3.0.1
> Reporter: Yiqun Lin
> Assignee: Yiqun Lin
> Priority: Major
> Attachments: HDFS-13435.001.patch, HDFS-13435.002.patch,
> HDFS-13435.003.patch
>
>
> There are many places that using {{Logger.error(String format, Object...
> arguments)}} incorrectly.
> A example:
> {code:java}
> LOG.error("Cannot remove {}", path, e);
> {code}
> The exception passed here is no meaning and won't be printed. Actually it
> should be update to
> {code:java}
> LOG.error("Cannot remove {}: {}.", path, e.getMessage());
> {code}
> or
> {code:java}
> LOG.error("Cannot remove " + path, e));
> {code}
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