[
https://issues.apache.org/jira/browse/HBASE-5104?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13177425#comment-13177425
]
Lars Hofhansl commented on HBASE-5104:
--------------------------------------
It seems to me that ColumnPaginationFilter should wrap another filter (similar
to how FilterList wraps other filters), and then apply the pagination on the
result (the wrapper filter of course could be another filter list).
> FilterList doesn't work right with filters (such as ColumPrefixFilter) which
> use the SEEK_NEXT_USING_HINT
> ---------------------------------------------------------------------------------------------------------
>
> Key: HBASE-5104
> URL: https://issues.apache.org/jira/browse/HBASE-5104
> Project: HBase
> Issue Type: Bug
> Reporter: Kannan Muthukkaruppan
> Assignee: Madhuwanti Vaidya
> Attachments: testFilterList.rb
>
>
> Thanks Jiakai Liu for reporting this issue and doing the initial
> investigation. Email from Jiakai below:
> Assuming that we have an index column family with the following entries:
> "tag0:001:thread1"
> ...
> "tag1:001:thread1"
> "tag1:002:thread2"
> ...
> "tag1:010:thread10"
> ...
> "tag2:001:thread1"
> "tag2:005:thread5"
> ...
> To get threads with "tag1" in range [5, 10), I tried the following code:
> ColumnPrefixFilter filter1 = new
> ColumnPrefixFilter(Bytes.toBytes("tag1"));
> ColumnPaginationFilter filter2 = new ColumnPaginationFilter(5 /* limit
> */, 5 /* offset */);
> FilterList filters = new FilterList(Operator.MUST_PASS_ALL);
> filters.addFilter(filter1);
> filters.addFilter(filter2);
> Get get = new Get(USER);
> get.addFamily(COLUMN_FAMILY);
> get.setMaxVersions(1);
> get.setFilter(filters);
> Somehow it didn't work as expected. It returned the entries as if the filter1
> were not set.
> Turns out the ColumnPrefixFilter returns SEEK_NEXT_USING_HINT in some cases.
> The FilterList filter does not handle this return code properly (treat it as
> INCLUDE).
--
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