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https://issues.apache.org/jira/browse/HBASE-686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12605415#action_12605415
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acure edited comment on HBASE-686 at 6/16/08 2:28 PM:
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My test case :
you have to create table 'aaa' with a column family 'xxx'
HTable htable = new HTable("aaa");
BatchUpdate batch = new BatchUpdate("123456".getBytes());
batch.put("xxx", "some value".getBytes());
htable.commit(batch);
byte[][] cols = new byte[][]{ "xxx".getBytes() };
RowResult row = htable.getRow("123456".getBytes(), cols, new
Date().getTime());
System.out.println("there is a row = " +
row.get("xxx".getBytes()).toString());
cols = new byte[][]{ "xxx:".getBytes() };
Scanner scanner = htable.getScanner(cols);
if (scanner.iterator().hasNext()) {
System.out.println(" GOOD !!!! - scanner returns some
rows ");
} else {
System.out.println(" WRONG !!!! - scanner didn't
found any rows");
}
was (Author: acure):
yes - of course, i will post it as soon as possible.
Thanks - Acure
> MemcacheScanner didn't return the first row(if it exists), cause
> HScannerInterface's output incorrect
> -----------------------------------------------------------------------------------------------------
>
> Key: HBASE-686
> URL: https://issues.apache.org/jira/browse/HBASE-686
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.1.2
> Reporter: LN
> Assignee: Jim Kellerman
>
> HTable.obtainScanner methods should return the start row if it exists,
> although HTable's javadoc didn't clearly desc. but i found the result of
> htable scanners sometimes contain the start row, sometimes not.
> after more testing and code review, i found it should be a bug in
> HStore.Memcache.MemcacheScanner. in the constructor it set this.currentRow =
> firstRow, but when doing next(), there's a this.currentRow =
> getNextRow(this.currentRow) before fetch result.
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