[HBASE-3811] Allow adding attributes to Scan

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.92.0
• Component/s: Client
• Hadoop Flags: Reviewed
• Assignee: Alex Baranau
• Reporter: Alex Baranau
• Created: 21/Apr/11 15:31
• Updated: 20/Nov/15 12:43
• Resolved: 25/May/11 20:41

Description

There's sometimes a need to add custom attribute to Scan object so that it can be accessed on server side.
Example of the case where it is needed discussed here: http://search-hadoop.com/m/v3Jtb2GkiO. There might be other cases where it is useful, which are mostly about logging/gathering stats on server side.

Alternative to allowing adding any custom attributes to scan could be adding some fixed field, like "type" to the class.

Issue Links

• blocks: HBASE-3679 Provide cost information associated with moving region(s)
• relates to: HBASE-3921 Allow adding arbitrary blobs to Put