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cassandra

0
votes
2 answers
41 views

Create super column and key

I not too familiar with creating a super column, is column_type=Super the right way to assign Super1 as super column? I could not get the id as…
asked June 21, 2011 10:30 pm CDT
prob4
0
votes
2 answers
31 views

Java Clonable = Why is Interface Clonable required, otherwise Exception is thrown?

are "Row Counts" in Cassandra meanwhile supported for a) RAndomPartitioner ? b) OrderPreservingPartitioner?…
asked June 21, 2011 8:14 pm CDT
Markus
0
votes
0 answers
34 views

Is nosql a right tool for multy level forum like comment system?

I want to build a web app similar to Reddit.com, where you have multy level of comments, lots of reads and writes. I was wondering if nosql and…
asked June 21, 2011 5:22 pm CDT
user720943
0
votes
3 answers
39 views

When to use NoSql, and which one?

I've been programming with php and mySql for a while now and recently decided that I wanted to give nosql a try. I would really appreciate if some…
asked June 21, 2011 3:28 pm CDT
user720943
0
votes
2 answers
37 views

Problem when using Hector0.8.0 do addCounter

I'm using hector-core 0.8.0-1 and Cassandra 0.8.0 to test a addCounter operation, but I found my code cannot insert any data into the CF, can anyone…
asked June 21, 2011 4:04 am CDT
Teng Teng
1
vote
1 answer
47 views

Is there a NoSQL database that can effectively detect duplicate items?

I'm looking to implement a system that searches for duplicate entries before saving new entries, mostly by IP address. Since NoSQL databases have…
asked June 20, 2011 11:39 pm CDT
mpso
0
votes
1 answers
33 views

Cassandra and Secondary-Indexes, how do they work internally?

How does a Cassandra Secondary-Index work internally? The docs state it is some kind of Hash Index: Given i have the colum username="foobar" (Column…
asked June 20, 2011 5:12 pm CDT
Markus
0
votes
1 answers
38 views

How does Solandra store documents?

Does Solandra store documents as-they-are (in rows of a column family, for example), with the Lucene index containing only pointer information... or…
asked June 20, 2011 9:51 am CDT
Lionheart
0
votes
0 answers
39 views

How do you check for the existance of a column family in hector?

I have code that uses Hector to access Cassandra and needs to create column families on the fly if and only if they don't already exist. What is the…
asked June 18, 2011 7:11 pm CDT
user430788
0
votes
1 answers
41 views

Cassandra is not updating data with CQL, with mutator it does

With the following code I try to update a row Keyspace fKeyspace = HFactory.createKeyspace(KEYSPACE, fCluster); // Update with CQL…
asked June 18, 2011 5:12 am CDT
strauberry
0
votes
2 answers
36 views

Reading rows in cassandra and de-serialzation issue

I'd like to get all rows from a column family and display all columns as well. I tried this one: CqlQuery<String, String, String> cqlQuery =…
asked June 17, 2011 1:30 pm CDT
strauberry
0
votes
0 answers
38 views

Cassandra with scala

Is there anyone has an advance on cassandra with scala ? there is no native scala-cassandra client supporting cassandra version 8.0+, so I have to…
asked June 17, 2011 2:39 am CDT
sirmak
1
vote
2 answers
39 views

Inserting from erlang into cassandra

I am trying to insert something into cassandra 0.7.6 from Erlang R14B02 (through thrift 0.6.1) I am doing the following: Read record definitions…
asked June 16, 2011 8:28 am CDT
dkk
3
votes
2 answers
42 views

Implement search filters in java

We need to implement a search filter (Net-log like) for my social networking site against user profile, filters on profile include age range, gender…
asked June 16, 2011 7:32 am CDT
mtariq
0
votes
1 answers
18 views

Using require_once in a static class

I am requiring two classes from the PHPCassa project into my class. Before I made my Class static I was able to call the method in…
asked June 15, 2011 2:08 pm CDT
Jean-Nicolas Boulay Desjardins
0
votes
1 answers
51 views

Solr version supported by Solandra

Does anyone know what version of Solr that Solandra will support? Is it just the latest version? I'm most concerned with the geospatial capabilities…
asked June 15, 2011 10:44 am CDT
Lionheart
0
votes
1 answers
54 views

Solandra vs. ElasticSearch

We are working with a Cassandra database that will store data in the petabyte range. We are thinking of using either ElasticSearch or Solandra, but…
asked June 15, 2011 9:53 am CDT
user578730
0
votes
1 answers
48 views

Practical Limits of ElasticSearch + Cassandra

I am planing on using ElasticSearch to index my Cassandra database. I am wondering if anyone has seen the practical limits of ElasticSearch. Do…
asked June 15, 2011 9:31 am CDT
user578730
1
vote
2 answers
28 views

Efficient retrieval of column families

Recently I've come up against efficient retrieval of several columns from single row in single column family. Currently, I am using Pelops as…
asked June 15, 2011 8:00 am CDT
luckyjaca
1
vote
2 answers
49 views

Pelops - Catch Connection Error?

Is there a way to catch a connection error when using pelops in Java? I have the following code but for some reason, I'm not getting to my catch…
asked June 13, 2011 6:06 pm CDT
kevin.mansel
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cassandra

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