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Subject: [jira] [Commented] (HBASE-12817) Data missing while scanning using
 PREFIX_TREE data block encoding
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    [ https://issues.apache.org/jira/browse/HBASE-12817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14268780#comment-14268780 ] 

Hadoop QA commented on HBASE-12817:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12690711/HBASE-12817-0.98.patch
  against master branch at commit 645fbd7d87450b31b67b1e535cdb9c1cf50ffd16.
  ATTACHMENT ID: 12690711

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 4 new or modified tests.

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/12356//console

This message is automatically generated.

> Data missing while scanning using PREFIX_TREE data block encoding
> -----------------------------------------------------------------
>
>                 Key: HBASE-12817
>                 URL: https://issues.apache.org/jira/browse/HBASE-12817
>             Project: HBase
>          Issue Type: Bug
>          Components: Scanners
>    Affects Versions: 0.98.9
>            Reporter: zhangduo
>            Assignee: zhangduo
>             Fix For: 1.0.0, 2.0.0, 0.98.10, 1.1.0
>
>         Attachments: HBASE-12817-0.98.patch, HBASE-12817-branch-1.patch, HBASE-12817.patch, HBASE-12817_1.patch
>
>
> write a testcase like this
> {code}
>   @Test
>   public void test() throws IOException {
>     for (int i = 0; i < 100; i++) {
>       region.put(new Put(Bytes.toBytes("obj" + (2900 + i))).add(fam, qual1, Bytes.toBytes(i)));
>     }
>     region.put(new Put(Bytes.toBytes("obj299")).add(fam, qual1, Bytes.toBytes("whatever")));
>     region.put(new Put(Bytes.toBytes("obj29")).add(fam, qual1, Bytes.toBytes("whatever")));
>     region.put(new Put(Bytes.toBytes("obj2")).add(fam, qual1, Bytes.toBytes("whatever")));
>     region.put(new Put(Bytes.toBytes("obj3")).add(fam, qual1, Bytes.toBytes("whatever")));
>     region.flushcache(true);
>     Scan scan = new Scan(Bytes.toBytes("obj29995"));
>     RegionScanner scanner = region.getScanner(scan);
>     List<Cell> cells = new ArrayList<Cell>();
>     assertFalse(scanner.next(cells));
>     assertArrayEquals(Bytes.toBytes("obj3"), Result.create(cells).getRow());
>   }
> {code}
> use obj29995 to scan should return obj3, but obj2990 is returned.
> Seems a bug introduced by the fix of HBASE-11728.



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