[SUPPORT] Can't get numDeletes in HoodieMetrics

[CaesarWangX]

Hi Team, I have a problem in the process of using HoodieMetrics

How I use it：
I use the customized MetricsRepoter which extends AbstractUserDefinedMetricsReporter, and get sortedMap<string, gauge> through MetricRegistry, but I can't get the data related to numDeletes in the result.

What have I done：
I go through the source code of HoodieMetrics and HoodieCommitMetadata. I found that the method getTotalRecordsDeleted has been defined in HoodieCommitMetadata in Hudi, but there is no call to getTotalRecordsDeleted in HoodieMetrics. In this case, using Hudi's metrics cannot obtain the amount of data deleted.

Question:
Is this a bug?
If so, which version is expected to be repaired?
If not, is there any plan to add it to metrics in a later version? Or is there any other way to get numDeletes from metrics？

Thanks in advance

[CaesarWangX]

I can get it from the .deltacommit files in .hoodie folder. But I prefer to get it in metrics

[xushiyan]

Question:
Is this a bug?
If so, which version is expected to be repaired?
If not, is there any plan to add it to metrics in a later version? Or is there any other way to get numDeletes from metrics？

@CaesarWangX it's not a bug. it's not in metrics by design. we can consider adding it. Filed https://issues.apache.org/jira/browse/HUDI-4596