[
https://issues.apache.org/jira/browse/HBASE-12303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14178765#comment-14178765
]
Lars Hofhansl commented on HBASE-12303:
---------------------------------------
Opened HBASE-12311 for more brainstorming around this.
> Seek to next row after family delete markers
> --------------------------------------------
>
> Key: HBASE-12303
> URL: https://issues.apache.org/jira/browse/HBASE-12303
> Project: HBase
> Issue Type: Bug
> Reporter: Lars Hofhansl
> Attachments: 12303.txt
>
>
> Currently we seek to the next column when we encounter a family delete marker.
> I think we safely seek the current store to next row.
> We ran into a scenario with very slow scans after a lot of rows have been
> deleted with family delete markers. Some profiling revealed that we seek for
> once for each row and column.
> This won't make this go away entirely, but at least we can seek once per row
> rather than once per column.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
