Chaoqiang Zhong created HBASE-25115:
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Summary: HFilePrettyPrinter can't seek to the row which is the
first row of a hfile
Key: HBASE-25115
URL: https://issues.apache.org/jira/browse/HBASE-25115
Project: HBase
Issue Type: Bug
Components: HFile, tooling
Affects Versions: 2.2.6
Reporter: Chaoqiang Zhong
This issue can be reproduced by below steps:
* make a hfile contains two rows '000' and '001';
{code:java}
D:\bin>hbase hfile -p -f
/hbase/data/default/test2/df76e4acab5398e70be332f6807ec3ba/f1/fda213c556d540a58d29d6bd85931dcd
K: 000/f1:a/1601282789548/Put/vlen=4/seqid=4 V: aaaa
K: 001/f1:a/1601282792779/Put/vlen=4/seqid=5 V: aaaa
Scanned kv count -> 2{code}
* '001' can be seeked to;
{code:java}
D:\bin>hbase hfile -e -w 001 -f
/hbase/data/default/test2/df76e4acab5398e70be332f6807ec3ba/f1/fda213c556d540a58d29d6bd85931dcd
K: 001/f1:a/1601282792779/Put/vlen=4/seqid=5
Scanned kv count -> 1{code}
* but '000' can't be seeked to;
{code:java}
D:\bin>hbase hfile -e -w 000 -f
/hbase/data/default/test2/df76e4acab5398e70be332f6807ec3ba/f1/fda213c556d540a58d29d6bd85931dcd
Scanned kv count -> 0{code}
In HFilePrettyPrinter we use
"scanner.seekTo(PrivateCellUtil.createFirstOnRow(this.row))" to seek to row.But
this method will retrurn -1 when the row is the first row of hfile.
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