Forgot to mention: 0.94.6.1 (CDH 4.3)
Best regards,
Vladimir Rodionov
Principal Platform Engineer
Carrier IQ, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
________________________________________
From: Vladimir Rodionov
Sent: Monday, July 22, 2013 4:17 PM
To: dev@hbase.apache.org; lars hofhansl
Subject: does append delete all cell versions except the last one?
I am doing some tests of append operation (HTable.append(Append append)) and it
seems that
if cell being appended has multiple versions , all except the last one get
deleted. Is it correct behavior or I am doing something wrong in my tests?
The test is simple. I have a row with 3 CF and 3 qualifiers in each CF and 10
versions (total # KVs stored for row is 90). I test append on the row
(for each CF:Qualifier combination)
public void testAppend()
{
int index = 2;
LOG.error("Test append started. Testing "+index+" row");
byte[] row = data.get(index).get(0).getRow();
byte[] toAppend = "APPEND".getBytes();
LOG.error(" Append row: "+ new String(row));
// Get all data for the row
Get get = createGet(row, null, null, null);
get.setMaxVersions(Integer.MAX_VALUE);
Result result = tableA.get(get);
List<KeyValue> ll = result.list();
// Correct list size is 3 (total families)*3 (total columns) *10
(# versions) = 90
assertEquals( 90, ll.size() );
// Do append to All 3 * 3 = 9 cells in a row
Append append = createAppend(row, Arrays.asList(FAMILIES),
Arrays.asList(COLUMNS), toAppend);
Result r = tableA.append(append);
ll = r.list();
assertEquals( 9, ll.size() );
// Check row again
get = createGet(row, null, null, null);
get.setMaxVersions(Integer.MAX_VALUE);
result = tableA.get(get);
assertEquals (90, result.size()); // This assertion FAILS:
actual size is 9
}
Best regards,
Vladimir Rodionov
Principal Platform Engineer
Carrier IQ, www.carrieriq.com
e-mail: vrodio...@carrieriq.com
Confidentiality Notice: The information contained in this message, including
any attachments hereto, may be confidential and is intended to be read only by
the individual or entity to whom this message is addressed. If the reader of
this message is not the intended recipient or an agent or designee of the
intended recipient, please note that any review, use, disclosure or
distribution of this message or its attachments, in any form, is strictly
prohibited. If you have received this message in error, please immediately
notify the sender and/or notificati...@carrieriq.com and delete or destroy any
copy of this message and its attachments.
