[
https://issues.apache.org/jira/browse/HBASE-2794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13118247#comment-13118247
]
Ted Yu commented on HBASE-2794:
-------------------------------
TestServerCustomProtocol#testRowRange failed during test suite run but passed
standalone.
> ROWCOL bloom filter not used if multiple columns within same family are
> requested in a Get
> ------------------------------------------------------------------------------------------
>
> Key: HBASE-2794
> URL: https://issues.apache.org/jira/browse/HBASE-2794
> Project: HBase
> Issue Type: Improvement
> Components: performance
> Reporter: Kannan Muthukkaruppan
> Assignee: Mikhail Bautin
> Fix For: 0.92.0
>
>
> Noticed the following snippet in StoreFile.java:Scanner:shouldSeek():
> {code}
> switch(bloomFilterType) {
> case ROW:
> key = row;
> break;
> case ROWCOL:
> if (columns.size() == 1) {
> byte[] col = columns.first();
> key = Bytes.add(row, col);
> break;
> }
> //$FALL-THROUGH$
> default:
> return true;
> }
> {code}
> If columns.size > 1, then we currently don't take advantage of the bloom
> filter. We should optimize this to check bloom for each of columns and if
> none of the columns are present in the bloom avoid opening the file.
--
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
