put with timestamp after delete is not stored
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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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