Re: updates on hector, a java cassandra client

2010-03-23 Thread Ran Tavory
Download ready jars with all required libs are available at http://github.com/rantav/hector/downloads On Mon, Mar 22, 2010 at 6:29 PM, Ned Wolpert wrote: > Ran- > > Are you going to make builds (jars) of Hector for each supported version > of Cassandra? Or leave it in source for the time being?

RE: updates on hector, a java cassandra client

2010-03-23 Thread Carlos Sanchez
Ran, Are you planning to submit hector to a maven repository? Carlos From: Ran Tavory [ran...@gmail.com] Sent: Tuesday, March 23, 2010 4:36 AM To: user@cassandra.apache.org Subject: Re: updates on hector, a java cassandra client Download ready jars with a

Re: updates on hector, a java cassandra client

2010-03-23 Thread Ran Tavory
I wanted to, but I hit a wall: There are libraries I use (such as cassandra and thrift) that aren't in a public repository. Any suggestion of to deal with it? On Tue, Mar 23, 2010 at 12:58 PM, Carlos Sanchez < carlos.sanc...@riskmetrics.com> wrote: > Ran, > > Are you planning to submit hector to

Re: updates on hector, a java cassandra client

2010-03-23 Thread gabriele renzi
On Sat, Mar 20, 2010 at 4:54 AM, Ran Tavory wrote: > Hector is a java client for cassandra, > see http://github.com/rantav/hector , http://prettyprint.me/2010/02/23/hector-a-java-cassandra-client/ , http://prettyprint.me/2010/03/03/load-balancing-and-improved-failover-in-hector/ Hey Ran, > Over

Re: updates on hector, a java cassandra client

2010-03-23 Thread Carlos Sanchez
I am afraid no suggesting about dealing w/ it. My only suggestion would be to change the name space (me.prettyprint) to something more presentative of what the library is for On Mar 23, 2010, at 6:05 AM, Ran Tavory wrote: I wanted to, but I hit a wall: There are libraries I use (such as cassand

Re: updates on hector, a java cassandra client

2010-03-23 Thread Ran Tavory
ok, this is a long and puzzling sentence, from http://en.wikipedia.org/wiki/Hector *Hektōr*, is a Trojan prince and the greatest fighter of Troy in the Trojan War . As the son of Priam and Hecuba , a descendant of Dardanus , who lived under Mount Ida , and of Tros , the founder of Troy,[2] <#cit

Re: updates on hector, a java cassandra client

2010-03-23 Thread john . dunlap
It's not ideal but you could always set the scope of the cassandra/thrift dependencies to provided. Quoting Ran Tavory : I wanted to, but I hit a wall: There are libraries I use (such as cassandra and thrift) that aren't in a public repository. Any suggestion of to deal with it? On Tue, Mar

Timestamp for versioning?

2010-03-23 Thread Waaij, B.D. (Bram) van der
Hi there, Is there already support for doing something with the timestamp? I would like to use it as a versioning mechanism of the value belonging to a certain key. When i store a column with the same key, different value and different timestamp, would i still be able to retrieve both versions? L

Re: Timestamp for versioning?

2010-03-23 Thread 张宇
HBase supports the version through the timestamp,but Cassandra not. 2010/3/23 Waaij, B.D. (Bram) van der > Hi there, > > Is there already support for doing something with the timestamp? I would > like to use it as a versioning mechanism of the value belonging to a certain > key. When i store a

RE: Timestamp for versioning?

2010-03-23 Thread Waaij, B.D. (Bram) van der
Are there any plans to add versioning in the near future to cassandra? What is the purpose of the timestamp in the current implementation? Best regards, Bram From: 张宇 [mailto:zyxt...@gmail.com] Sent: dinsdag 23 maart 2010 14:56 To: us

Re: Timestamp for versioning?

2010-03-23 Thread Gary Dusbabek
Work is in progress. https://issues.apache.org/jira/browse/CASSANDRA-580 Gary 2010/3/23 Waaij, B.D. (Bram) van der : > Are there any plans to add versioning in the near future to cassandra? > > What is the purpose of the timestamp in the current implementation? > > Best regards, > Bram > > _

RE: Timestamp for versioning?

2010-03-23 Thread Waaij, B.D. (Bram) van der
Hi Gary, The description of that issue says: "Allow a ColumnFamily to be versioned via vector clocks, instead of long timestamps. Purpose: enable incr/decr; flexible conflict resolution." That suggests it is already possible using long timestamps. Any idea's on that? Best regards, Bram >

Re: Timestamp for versioning?

2010-03-23 Thread Jonathan Ellis
No, we're not planning to add support for retrieving old versions. 2010/3/23 Waaij, B.D. (Bram) van der : > Are there any plans to add versioning in the near future to cassandra? > > What is the purpose of the timestamp in the current implementation? > > Best regards, > Bram > > __

RE: Timestamp for versioning?

2010-03-23 Thread Waaij, B.D. (Bram) van der
Can you explain then to me what the purpose is of the timestamp? > -Original Message- > From: Jonathan Ellis [mailto:jbel...@gmail.com] > Sent: dinsdag 23 maart 2010 15:35 > To: user@cassandra.apache.org > Subject: Re: Timestamp for versioning? > > No, we're not planning to add support

Re: Timestamp for versioning?

2010-03-23 Thread Erik Holstad
If I'm not totally mistaken the timestamp is used for conflict resolution on the server. Have a look at: http://wiki.apache.org/cassandra/DataModel for more info 2010/3/23 Waaij, B.D. (Bram) van der > Can you explain then to me what the purpose is of the timestamp? > > > > -Original Messa

Re: get ordered by value

2010-03-23 Thread Peter Chang
Perhaps an inverted index would work. supercolumn=5 subcolumn=1036 supercolumn=3 subcolumn=13838 I only used a super column family so that you could have multiple subcolumns for the same supercolumn. Peter 2010/3/22 Juan Manuel García del Moral > Hello > > I have this: > > get SocialAds.Anoni

Re: Digg's data model

2010-03-23 Thread Ned Wolpert
I'm curious why you are storing the backups (sstables and commit logs) to HDFS instead of something like lustre. Are your backups using Hadoop's map/reduce somehow? Or is it for convenience? On Sat, Mar 20, 2010 at 8:40 AM, Chris Goffinet wrote: > > 5. Backups : If there is a 4 or 5 TB cassandr

Re: Hackathon?!?

2010-03-23 Thread Jeff Hodges
I'll be there. -- Jeff On Mon, Mar 22, 2010 at 8:40 PM, Eric Florenzano wrote: > Nice, I'll go! > > -Eric Florenzano

Re: libcassandra - C++ Cassandra Client

2010-03-23 Thread Jack Culpepper
Hey Padraig, I followed your blog post a while back, http://posulliv.github.com/2010/02/22/cpp-cassandra.html and was able to get my c++ thrift interface working. I would like to switch over to libcassandra, but I am getting build errors on Debian. What platform are you on? I am experiencing lib

cassandra gem 0.8.0 released

2010-03-23 Thread Ryan King
I just released version 0.8.0 of the cassandra gem: http://github.com/fauna/cassandra http://rubygems.org/gems/cassandra The major new feature is compatibility with the 0.6 betas of cassandra (0.5 is no longer supported). If you use ruby to talk to cassandra (and can use 0.6), please give it a t

Frustrations installing Cassandra on Windows

2010-03-23 Thread Raymond Wilson
Hi, I've been looking at using Cassandra as a distributed database for use in our server software, which runs on Windows. This afternoon I've been trying to get Cassandra installed and running. Actually installing Cassandra was pretty easy, at least in the steps of "Download it, setup CASSANDRA_H

Re: Frustrations installing Cassandra on Windows

2010-03-23 Thread Jonathan Ellis
On Tue, Mar 23, 2010 at 9:49 PM, Raymond Wilson wrote: > As a suggestion, is it worth considering producing Cassandra builds that > contain all the peripheral bits and pieces it relies on (essentially > running the 'ant ivy-retrieve' command and bundling up the results as a > single download/insta