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https://issues.apache.org/jira/browse/HBASE-28328?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shubham Roy updated HBASE-28328:
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Release Note: The JIRA adds a feature in RowCounter tool to count the
various types of delete markers (DELETE_COLUMN, DELETE_FAMILY,
DELETE_FAMILY_VERSION) and the number of rows containing at least one delete
marker. The feature can be enabled by passing the flag --countDeleteMarkers as
a CLI option. When the feature is enabled, raw scan is performed without
FirstKeyOnlyFilter.
> Add an option to count different types of Delete Markers in RowCounter
> ----------------------------------------------------------------------
>
> Key: HBASE-28328
> URL: https://issues.apache.org/jira/browse/HBASE-28328
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Reporter: Himanshu Gwalani
> Assignee: Shubham Roy
> Priority: Minor
> Labels: pull-request-available
>
> Add an option (count-delete-markers) to the
> [RowCounter|https://github.com/apache/hbase/blob/8a9ad0736621fa1b00b5ae90529ca6065f88c67f/hbase-mapreduce/src/main/java/org/apache/hadoop/hbase/mapreduce/RowCounter.java#L240C62-L240C75]
> tool to count the number of Delete Markers of all types, i.e. (DELETE,
> DELETE_COLUMN, DELETE_FAMILY,DELETE_FAMILY_VERSION)
> We already have such a feature within our internal implementation of
> RowCounter and it's very useful.
> Implementation Ideas:
> 1. If the option is passed, initialize the empty job counters for all 4 types
> of deletes.
> 2. Within mapper, increase the respective delete counts while processing each
> row.
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