ramkrishna.s.vasudevan created HBASE-13945:
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Summary: [0.98] Prefix_Tree seekBefore() does not work correctly
Key: HBASE-13945
URL: https://issues.apache.org/jira/browse/HBASE-13945
Project: HBase
Issue Type: Bug
Affects Versions: 0.98.2
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
Fix For: 0.98.14
This is related to the TestSeekTo test case where the seekBefore() does not
work with Prefix_Tree because of an issue in getFirstKeyInBlock(). In the trunk
and branch-1 changing the return type of getFirstKeyInBlock() from BB to Cell
resolved the problem, but the same cannot be done in 0.98. Hence we need a
change in the KvUtil.copyToNewBuffer API to handle this. Since the limit is
made as the position - in seekBefore when we do
{code}
byte[] firstKeyInCurrentBlock = Bytes.getBytes(firstKey);
{code}
in HFileReaderV2.seekBefore() we end up in an empty byte array and it would not
be the expected one based on which we try to seek to load a new block.
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