CP hooks in Scan flow for fast forward when filter filters out a row
--------------------------------------------------------------------
Key: HBASE-5664
URL: https://issues.apache.org/jira/browse/HBASE-5664
Project: HBase
Issue Type: Improvement
Components: coprocessors
Affects Versions: 0.92.1
Reporter: Anoop Sam John
Fix For: 0.96.0
In HRegion.nextInternal(int limit, String metric)
We have while(true) loop so as to fetch a next result which satisfies
filter condition. When Filter filters out the current fetched row we call
nextRow(byte [] currentRow) before going with the next row.
{code}
if (results.isEmpty() || filterRow()) {
// this seems like a redundant step - we already consumed the row
// there're no left overs.
// the reasons for calling this method are:
// 1. reset the filters.
// 2. provide a hook to fast forward the row (used by subclasses)
nextRow(currentRow);
{code}
// 2. provide a hook to fast forward the row (used by subclasses)
We can provide same feature of fast forward support for the CP also.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
