You mean MapFile?
http://hadoop.apache.org/core/docs/r0.16.3/api/org/apache/hadoop/io/MapFile.html
It says: The index file is read entirely into memory. Thus key
implementations should try to keep themselves small.
I'll support it though.
Ted Dunning skrev:
There is a MapTable available in Hadoop. It is a bit slow because random
reads from HDFS are kind of slow.
It might be just what you need.
On 4/19/08 3:47 PM, "Karl Wettin" <[EMAIL PROTECTED]> wrote:
We could implement our own transactionless variant that use Writable for
serialization. Is it possible to seek on DFS?
karl
Grant Ingersoll skrev:
Yeah, I think it does the good ol' download process, meaning it isn't
compatible :-(
How much work to roll your own? Or, I suppose, find something that is
compatible.
On Apr 19, 2008, at 12:45 PM, Karl Wettin wrote:
trunk/contrib/db/bdb-je to be precise
but I notice it is not in the libs there.
Grant Ingersoll skrev:
Is that what Lucene Java contrib/db/bdb uses? Or at least a
different version?
On Apr 18, 2008, at 5:58 PM, Karl Wettin wrote:
http://www.oracle.com/technology/software/products/berkeley-db/htdocs/lice
nsing.html
Grant Ingersoll skrev:
What's the license?
On Apr 18, 2008, at 5:37 PM, Karl Wettin wrote:
I need to persist my tree is some way. Was thinking ad hoc:
a file with branch node pks
a file with branch node records
a file with leaf node pks
a file with leaf node records
an optional file with node mean instances
Will probably start with BDB JE though. Any comments to adding
that to the libs?
karl
