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https://issues.apache.org/jira/browse/HBASE-13945?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14596222#comment-14596222
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Anoop Sam John commented on HBASE-13945:
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Also the test case in TestDataBlockEncoder need change. assertEquals is not
asserting the bytes from actualKey and expectedKey. The BB's position will be
at the end and so not checking the actual key bytes. In tests we should rewind
both these BBs and then do assertEquals
> 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: 1.0.0, 0.98.2, 1.0.1, 1.1.0, 1.0.1.1, 1.1.0.1
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.98.14, 1.0.2, 1.2.0, 1.1.1, 1.1.2, 1.3.0, 1.2.1
>
> Attachments: HBASE-13945_0.98.patch, HBASE-13945_0.98_1.patch,
> HBASE-13945_0.98_2.patch, HBASE-13945_branch-1.1.patch,
> HBASE-13945_trunk.patch, HBASE-13945_trunk_1.patch
>
>
> 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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