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Posted to dev@phoenix.apache.org by "rukawakang (JIRA)" <ji...@apache.org> on 2017/10/18 08:46:00 UTC
[jira] [Created] (PHOENIX-4296) Dead loop in HBase reverse scan
when amount of scan data is greater than SCAN_RESULT_CHUNK_SIZE
rukawakang created PHOENIX-4296:
-----------------------------------
Summary: Dead loop in HBase reverse scan when amount of scan data is greater than SCAN_RESULT_CHUNK_SIZE
Key: PHOENIX-4296
URL: https://issues.apache.org/jira/browse/PHOENIX-4296
Project: Phoenix
Issue Type: Bug
Affects Versions: 4.6.0
Reporter: rukawakang
This problem seems to only occur with reverse scan not forward scan. When amount of scan data is greater than SCAN_RESULT_CHUNK_SIZE(default 2999), Class ChunkedResultIteratorFactory will multiple calls function getResultIterator. But in function getResultIterator it always readjusts startRow, in fact, if in reverse scan we should readjust stopRow. For example
{code:java}
if (ScanUtil.isReversed(scan)) {
scan.setStopRow(ByteUtil.copyKeyBytesIfNecessary(lastKey));
} else {
scan.setStartRow(ByteUtil.copyKeyBytesIfNecessary(lastKey));
}
{code}
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