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From "zhangduo (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-12078) Missing Data when scanning using PREFIX_TREE DATA-BLOCK-ENCODING
Date Wed, 24 Sep 2014 07:15:34 GMT
zhangduo created HBASE-12078:

             Summary: Missing Data when scanning using PREFIX_TREE DATA-BLOCK-ENCODING
                 Key: HBASE-12078
                 URL: https://issues.apache.org/jira/browse/HBASE-12078
             Project: HBase
          Issue Type: Bug
    Affects Versions:
         Environment: CentOS 6.3
hadoop 2.5.0(hdfs)
hadoop 2.2.0(hbase)
sun-jdk 1.7.0_67-b01
            Reporter: zhangduo

our row key is combined with two ints, and we found that sometimes when we using only the
first int part to scan, the result returned may missing some rows. But when we dump the whole
hfile, the row is still there.

We have written a testcase to reproduce the bug. It works like this:

put 1-12345
put 12345-0x01000000
put 12345-0x01010000
put 12345-0x02000000
put 12345-0x02020000
put 12345-0x03000000
put 12345-0x03030000
put 12345-0x04000000
put 12345-0x04040000

then scan using 12345,the returned row key will be 12345-0x20000000(12345-0x10000000 expected)

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