Ah ha! So the row key orders the results, I just do an unbounded Scan,
and stop after N iterations.
Like this...
Scan scan = new Scan();
Filter filter = new SingleColumnValueFilter(...);
scan.setFilter(filter);
ResultScanner scanner = hTable.getScanner(scan);
Iterator<Result> it = scanner.iterator();
for ( int i=0; i<1000 && it.hasNext(); i++) {
Result result = it.next();
... do stuff with result...
}
Do I have to worry about efficiency? Is the Server madly retrieving
rows, in the background, that the Client will never use?
Thanks
P
On 3/2/12 4:31 PM, Doug Meil wrote:
Hi there-
Take a look at this section of the book...
http://hbase.apache.org/book.html#reverse.timestamp
On 3/2/12 4:02 PM, "Peter Wolf"<[email protected]> wrote:
Hello all,
I want to retrieve the most recent N rows from a table, with some column
qualifiers.
I can't find a Filter, or anything obvious in my books, or via Google.
What is the idiom for doing this?
Thanks
Peter
