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https://issues.apache.org/jira/browse/HDFS-7579?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14268329#comment-14268329
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Chris Nauroth commented on HDFS-7579:
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Hi [~clamb]. This is a good idea. Thanks for the patch.
One difference I see in this patch is that the logged value of
{{numReportsSent}} is set to the length of the per-volume report list on both
the "single message" and "split RPC per report" code paths. Previously, this
would have been 1 for the "single message" case. I think the intent of this
counter was to give an indication of the actual number of RPCs, so we'd want to
keep 1 for the "single message" case. Cc'ing [~arpitagarwal] for a second
opinion.
> Improve log reporting during block report rpc failure
> -----------------------------------------------------
>
> Key: HDFS-7579
> URL: https://issues.apache.org/jira/browse/HDFS-7579
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: datanode
> Affects Versions: 2.7.0
> Reporter: Charles Lamb
> Assignee: Charles Lamb
> Priority: Minor
> Labels: supportability
> Attachments: HDFS-7579.000.patch
>
>
> During block reporting, if the block report RPC fails, for example because it
> exceeded the max rpc len, we should still produce some sort of LOG.info
> output to help with debugging.
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