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https://issues.apache.org/jira/browse/HBASE-2272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12839625#action_12839625
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Matthias Lehmann commented on HBASE-2272:
-----------------------------------------
I made a terribly stupid mistake: I was used to think of timestamps of seconds
since epoch time (python uses floats to express milliseconds) but HBase uses
Longs of millisenconds since epoch time. So obviously, my explicit timestamps
lay way back in the past, which is why the put with timestamp was shadowed by
the delete.
Sorry that I took so much of you time - larsgeorge and jdcryans.
> put with timestamp after delete is not stored
> ---------------------------------------------
>
> Key: HBASE-2272
> URL: https://issues.apache.org/jira/browse/HBASE-2272
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.20.3
> Reporter: Matthias Lehmann
>
> When I delete a row and afterwards put a value for that row again, I can not
> get it (so apparently it was not stored), but only, when I put the value with
> a timestamp.
> A flush of the table between delete and put bypasses the problem.
> I give a hbase-shell log as an example.
> Lets assume, we have a table 'foo' with a column-familiy 's:':
> The Error
> >put 'foo', '123', 's:bar', 'hello'
> >get 'foo', '123'
> COLUMN CELL
> s:bar timestamp=..., value=hello
> >deleteall 'foo', '123'
> // put WITH timestamp
> >put 'foo', '123', 's:bar', 'hello', 1267202287
> > get 'foo', '123'
> COLUMN CELL
> // nothing, even though a value was saved before
> But This Works
> >put 'foo', '123', 's:bar', 'hello'
> >get 'foo', '123'
> COLUMN CELL
> s:bar timestamp=..., value=hello
> >deleteall 'foo', '123'
> // put WITHOUT timestamp
> >put 'foo', '123', 's:bar', 'hello'
> > get 'foo', '123'
> COLUMN CELL
> s:bar timestamp=..., value=hello
> // value was saved
> And Also
> >put 'foo', '123', 's:bar', 'hello'
> >get 'foo', '123'
> COLUMN CELL
> s:bar timestamp=..., value=hello
> >deleteall 'foo', '123'
> // flush table
> >flush 'foo'
> // put WITH timestamp
> >put 'foo', '123', 's:bar', 'hello', 1267202287
> > get 'foo', '123'
> COLUMN CELL
> s:bar timestamp=..., value=hello
> // value was saved
> The error also occurs with single cells - one does not have to delete whole
> rows:
> >put 'foo', '123', 's:bar', 'hello'
> >put 'foo', '123', 's:baz', 'world'
> >get 'foo', '123'
> COLUMN CELL
> s:bar timestamp=..., value=hello
> s:baz timestamp=..., value=world
> >delete 'foo', '123', 's:bar'
> // put WITH timestamp
> >put 'foo', '123', 's:bar', 'hello', 1267202287
> >get 'foo', '123'
> COLUMN CELL
> s:baz timestamp=..., value=world
> // value for s:baz was not saved
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