Hi all,
We are using the Ruby gem wrapper for Cassandra:
"cassandra-cql"
I was wondering if anyone has come across this error before:
Error #,
/usr/local/rvm/gems/ruby-1.9.3-p448-turbo/gems/thrift-0.8.0/lib/thrift/transport/socket.rb:109:in
`read':
We seem to get this when there is a heavy loa
, but if it is all on one machine then why
> use
> > Cassandra or hadoop?
> >
> > Sent from my phone
> >
> > On 13 Jul 2013 01:16, "Martin Arrowsmith"
> > wrote:
> >>
> >> Dear Cassandra experts,
> >>
> >> I
Dear Cassandra experts,
I have an HP Proliant ML350 G8 server, and I want to put virtual
servers on it. I would like to put the maximum number of nodes
for a Cassandra + Hadoop cluster. I was wondering - what is the
minimum RAM and memory per node I that I need to have Cassandra + Hadoop
before th
gt;
>> -
>> Aaron Morton
>> Freelance Developer
>> @aaronmorton
>> http://www.thelastpickle.com
>>
>> On 14/02/2012, at 11:00 AM, Martin Arrowsmith wrote:
>>
>> Hi Experts,
>>
>> My program is such that it queries all
Hi Franc,
Or, you can consider using composite columns. It is not recommended to use
Super Columns anymore.
Best wishes,
Martin
On Thu, Feb 23, 2012 at 7:51 PM, Indranath Ghosh wrote:
> How about using a composite row key like the following:
>
> Entity.Day1.TypeA: {col1:val1, col2:val2, . . .
Hi Experts,
My program is such that it queries all keys on Cassandra. I want to do this
as quick as possible, in order to get as close to real-time as possible.
One solution I heard was to use the sstables2json tool, and read the data
in as JSON. I understand that reading from each line in Cassan
I believe this calls for Cassanda Cookbook 2nd edition :)
On Wed, Dec 28, 2011 at 10:26 AM, Edward Capriolo wrote:
> Super columns have the same fundamental problem and perform worse in
> general. So switching from composites to super columns is NEVER a good idea.
>
>
> On Wed, Dec 28, 2011 at 1:
Dear Cassandra Experts,
Are the number of composite attributes fixed for each column family ?
I have been doing : "create column family MyCF with comparator =
'CompositeType(IntegerType, UTF8Type)'
And this creates a composite { integer:string }
Hector complains when I give a 3rd attribute.
If
Dear Cassandra and Hector experts,
I am using Hector to implement and query information from Composite Columns.
I found this site to be quite useful:
http://randomizedsort.blogspot.com/2011/11/cassandra-range-query-using.html
It goes through the steps of creating a composite column, to perform s
