I'm attempting to delete all rows from a table that contain a specific word
in the value of a specified column. My current process looks like:
accumulo shell -e 'egrep .*EXPRESSION.* -np -t tab -c col' | awk 'BEGIN
{print "table tab"}; {print "deletemany -f -np -r" $1}; END {print "exit"}'
> rows.
You could use a RegEx filter to get the rowids, and then pass them to the
RowDeletingIterator .
~A
On Tue, Oct 22, 2013 at 11:45 AM, Mike Drob wrote:
> I'm attempting to delete all rows from a table that contain a specific
> word in the value of a specified column. My current process looks lik
If its a significant amount of data, you could create a class that extends
row filter and set it as a compaction iterator.
On Tue, Oct 22, 2013 at 11:45 AM, Mike Drob wrote:
> I'm attempting to delete all rows from a table that contain a specific
> word in the value of a specified column. My cu
Thanks for the feedback, Aru and Keith.
I've had some more time to play around with this, and here's some
additional observations.
My existing process is very slow. I think this is due to each deletemany
command starting up a new scanner and batchwriter, and creating a lot of
rpc overhead. I didn
Hi Mike,
Did you wind up writing java code to do this? Did you go with a RowFilter?
I have a similar circumstance where I need to delete millions of rows daily
and the criteria for deletion is not in the rowkey.
Thanks in advance,
Terry
On Wed, Oct 23, 2013 at 4:21 PM, Mike Drob wrote:
> Th
Terry,
Yea, a RowFilter + full compaction takes care of the issue. Note that
simply setting a RowFilter for scan time and expecting the data to delete
naturally might not work if your clients set varying fetch columns on their
scanners.
Mike
On Thu, Oct 31, 2013 at 5:11 PM, Terry P. wrote:
>
Thanks Mike. It looks like the AgeOffFilter class would be a good starting
point as a template for my filter: override the logic in the *init *method
as appropriate and put the criteria in the *accept* method.
What I can't figure out is where is the magic to remove entries? I don't
see anything i
