[ https://issues.apache.org/jira/browse/HBASE-5980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack updated HBASE-5980: ------------------------- Attachment: 5980v5.txt Retry (had to do minor fixup so still applies) > Scanner responses from RS should include metrics on rows/KVs filtered > --------------------------------------------------------------------- > > Key: HBASE-5980 > URL: https://issues.apache.org/jira/browse/HBASE-5980 > Project: HBase > Issue Type: Improvement > Components: Client, metrics, regionserver > Affects Versions: 0.95.2 > Reporter: Todd Lipcon > Assignee: Jonathan Lawlor > Priority: Minor > Attachments: 5980v5.txt, HBASE-5980-branch-1.patch, > HBASE-5980-v1.patch, HBASE-5980-v2.patch, HBASE-5980-v2.patch, > HBASE-5980-v3.patch, HBASE-5980-v4.patch > > > Currently it's difficult to know, when issuing a filter, what percentage of > rows were skipped by that filter. We should expose some basic counters back > to the client scanner object. For example: > - number of rows filtered by row key alone (filterRowKey()) > - number of times each filter response was returned by filterKeyValue() - > corresponding to Filter.ReturnCode > What would be slickest is if this could actually return a tree of counters > for cases where FilterList or other combining filters are used. But a > top-level is a good start. -- This message was sent by Atlassian JIRA (v6.3.4#6332)