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Chaoqiang Zhong commented on HBASE-25115: ----------------------------------------- This maybe cased by HFileBlockIndex#rootBlockContainingKey(). When we use HFileBlockIndex#rootBlockContainingKey() with a cell created by PrivateCellUtil.createFirstOnRow(), it will return -1. > 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 > Assignee: niuyulin > Priority: Major > > 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. -- This message was sent by Atlassian Jira (v8.3.4#803005)