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https://issues.apache.org/jira/browse/HDFS-12371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16170581#comment-16170581
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Kihwal Lee commented on HDFS-12371:
-----------------------------------
Test failures are not related. They either pass when ran locally or are known
issues. E.g. HDFS-12480 is addressing TestNameNodeMetrics.
The block verification failure count was intended for actual checksum errors. I
don't think we need to increment the failure count here. Other than that, the
patch looks good.
{code}
if (block == null) {
metrics.incrBlockVerificationFailures();
return -1; // block not found.
}
{code}
> "BlockVerificationFailures" and "BlocksVerified" show up as 0 in Datanode JMX
> -----------------------------------------------------------------------------
>
> Key: HDFS-12371
> URL: https://issues.apache.org/jira/browse/HDFS-12371
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: metrics
> Affects Versions: 2.7.1
> Reporter: Sai Nukavarapu
> Assignee: Hanisha Koneru
> Attachments: HDFS-12371.001.patch
>
>
> "BlockVerificationFailures" and "BlocksVerified" show up as 0 in Datanode JMX
> Looking at the code, i see below description.
> {noformat}
> `BlockVerificationFailures` | Total number of verifications failures |
> `BlocksVerified` | Total number of blocks verified |
> {noformat}
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