Istvan Toth created HBASE-28622:
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Summary: FilterListWithAND can swallow SEEK_NEXT_USING_HINT
Key: HBASE-28622
URL: https://issues.apache.org/jira/browse/HBASE-28622
Project: HBase
Issue Type: Bug
Components: Filters
Reporter: Istvan Toth
Assignee: Istvan Toth
org.apache.hadoop.hbase.filter.FilterListWithAND.filterRowKey(Cell) will return
true if ANY of the filters returns true for Filter#filterRowKey().
However, the SEEK_NEXT_USING_HINT mechanism relies on filterRowKey() returning
false, so that filterCell() can return SEEK_NEXT_USING_HINT.
If none of the filters matches, but one of them returns true for
filterRowKey(), then the filter(s) that returned to false, so that they can
return SEEK_NEXT_USING_HINT in filterCell() never get a chance to return
SEEK_NEXT_USING_HINT, and instead of seeking, FilterListWithAND will do very
slow full scan.
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