Ted, It is not still clear to me. What I am observing in my tests can be explained only if on each Append we read the latest version of a cell, then put delete marker then put new version.
The question still remains: expected behavior or a bug? Best regards, Vladimir Rodionov Principal Platform Engineer Carrier IQ, www.carrieriq.com e-mail: vrodio...@carrieriq.com ________________________________________ From: Ted Yu [yuzhih...@gmail.com] Sent: Monday, July 22, 2013 4:54 PM To: dev@hbase.apache.org Subject: Re: does append delete all cell versions except the last one? Take a look at the release notes for: https://issues.apache.org/jira/browse/HBASE-4583 The fix went to 0.95.0 Cheers On Mon, Jul 22, 2013 at 4:20 PM, Vladimir Rodionov <vrodio...@carrieriq.com>wrote: > 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. > 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.
