As far as i know, the tbuffered/tsocket issue only applies to c# (btw, que had a lot of problems with hector#). In java, the class tbufferedtransport doenst exist.
Carlos On 5/10/10, Arie Keren <a...@doubleverify.com> wrote: > Using TSocket without TBufferedTransport hurts performance. > > See > http://mail-archives.apache.org/mod_mbox/cassandra-user/201005.mbox/%3cd0c18662921df14f983c53625de8a7241e4c11f...@34093-mbx-c14.mex07a.mlsrvr.com%3e > > > > > > From: Ran Tavory [mailto:ran...@gmail.com] > Sent: May 10, 2010 11:48 AM > To: user@cassandra.apache.org > Subject: Re: Tuning Cassandra > > > > Hector uses tsocket. not sure what you mean by "buffered" - is that framed? > Hector by default does not use framed. > > The code is here if you'd like to have a look > http://github.com/rantav/hector/blob/master/src/main/java/me/prettyprint/cassandra/service/CassandraClientFactory.java#L77 > > > > However, I find it hard to believe that the actual connection is the slowing > factor. > > > > Roughly speaking, cassandra is fast on writes and slow on reads. Exact > numbers are per-scenario so it's hard to say, but if you only write and > objects are small then from my experience you should expect a few k writes > per second on a single host. How much do you see? > > > > There are many configuration factors and they all depend on expected usage > and available h/w. > > On Mon, May 10, 2010 at 11:27 AM, vd > <vineetdan...@gmail.com<mailto:vineetdan...@gmail.com>> wrote: > > What is the complete code string you are using to connect with cassandra > from Java code > > > > > > > On Mon, May 10, 2010 at 1:49 PM, David Boxenhorn > <da...@lookin2.com<mailto:da...@lookin2.com>> wrote: > > I don't know what "TSocket or the buffered one" means. Maybe I should know? > > I'm using Hector. Does that explain anything? > > > > On Mon, May 10, 2010 at 11:15 AM, vd > <vineetdan...@gmail.com<mailto:vineetdan...@gmail.com>> wrote: > > > Hi > > what is it that you are using to connect with cassnadra TSocket or the > buffered one ? > > > ____________________________________ > > _______________________________________ > > > > > > > On Mon, May 10, 2010 at 1:29 PM, David Boxenhorn > <da...@lookin2.com<mailto:da...@lookin2.com>> wrote: > > I'm running Java on the client, jdbc queries on Oracle, Hector on > Cassandra. > > The Cassandra and Oracle database designs are radically different, as you > might guess. > > I have no doubt that Cassandra can be tuned, in a multiple-server cluster, > to have superior throughput (that's why I'm doing it!). But for now, it's > really frustrating my development effort that Cassandra is so slow. Can't I > get it up to twice as slow as Oracle in my configuration? > > > > On Mon, May 10, 2010 at 10:47 AM, vd > <vineetdan...@gmail.com<mailto:vineetdan...@gmail.com>> wrote: > > Hi David > > If I may ask...how do you plan to import data from oracle to cassandra ? > As answer AFAIK cassandra's true ability comes into play when running on > more than one machine...and please share how you are making comparisons like > on writes or reads from cassandra. > > > > _______________________________________ > _______________________________________ > > > > > > > > On Mon, May 10, 2010 at 1:04 PM, David Boxenhorn > <da...@lookin2.com<mailto:da...@lookin2.com>> wrote: > > I'm running Oracle and Cassandra on my machine, trying to import my data to > Cassandra from Oracle. > > In my configuration Oracle is about ten times faster than Cassandra. > Cassandra has out-of-the-box tuning. > > I am new to Cassandra. How do I begin trying to tune it? > > Thanks. > > > > > > > > > > > > > > > > __________ Information from ESET NOD32 Antivirus, version of virus signature > database 4628 (20091122) __________ > > > > The message was checked by ESET NOD32 Antivirus. > > > > http://www.eset.com > > -- Sent from my mobile device Tal vez hubo un error en la grafía. O en la articulación del Sacro Nombre.
