But how can i do range query?, for example get all objects of wolrd?
2010/2/19 Wojciech Kaczmarek
> Hi Ruslan,
>
> I'd model your objects as rows. You can have a concatenation of worldId &
> objectId as a key, or just objectId alone.
>
>
> On Thu, Feb 18, 2010
For example i have worlds with objects in it (stones, trees and so on). In
my case worldid is key, objects are supercollums(some extra info or draw)
2010/2/18 Ted Zlatanov
> On Thu, 18 Feb 2010 18:05:50 +0300 ruslan usifov
> wrote:
>
> ru> 2010/2/18 Ted Zlatanov
> &
Friends relations, for statistic
2010/2/18 Ted Zlatanov
> On Thu, 18 Feb 2010 00:44:17 +0300 ruslan usifov
> wrote:
>
> ru> I have Table where 10 rows have 10 columns about 200 bytes in each
> ru> column, So if read only this 10 records only nodes that have this r
Hm. Pity
I have Table where 10 rows have 10 columns about 200 bytes in each
column, So if read only this 10 records only nodes that have this rows does
work, another nodes are idle. This bad, and cassandra doesn't provide any
solution to solve this
Hello
For example if we have table, which have rows with many columns (1 or
more) how this data will by partitioned?? I expect that one row may by slit
on some nodes. But look at source of cassandra i think that one row store on
one node, and never slits, or i be mistaken??
I think that you have not enough room for your data. run df -h to see that
one of your discs is full
2010/2/17 Ran Tavory
> I'm running some high load writes on a pair of cassandra hosts using an
> OrderPresenrvingPartitioner and ran into the following error after which one
> of the hosts killed
Hello
If i have worked cluster with replication count 2, how can i increase
replication factor to 3, without loss of data??
Yes, for test case
2010/2/15 Jonathan Ellis
> are you mixing windows and unix machines in the same cluster?
>
> On Fri, Feb 12, 2010 at 2:38 PM, ruslan usifov
> wrote:
> > Also i have problem with StreamInitiateVerbHandler, the problem in
> > PendingFile.getTargetFi
org.apache.cassandra.net.FileStreamTask.runMayThrow(FileStreamTask.java:63)
at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
... 3 more
2010/2/12 Jonathan Ellis
> Care to include a stack trace? Those are useful when reporting problems.
>
> On Fri, Feb 12, 2010 at 2:31 PM, ruslan usifov
Also i have problem with StreamInitiateVerbHandler, the problem in
PendingFile.getTargetFile, namely difference in slashes on win and unix, so
i change PendingFile.java like this:
public PendingFile(String targetFile, long expectedBytes, String table)
{
targetFile_ = targetFile.rep
Yes
My first node is ander win32, and there is problem in FileStreamTask.java
here:
public static final int CHUNK_SIZE = 64*1024*1024;
On windows this buffer is very big so stream method of class FileStreamTask
always fail, i reduce buffer to 32MB, and this works in my case.
2010/2/12 ruslan
Hello
I have two nodes. First i on only one node and populate it with records.
Then i start second node in bootstrap mode. And it hung. I run ./nodetool
many times but it allways print
identical results (67108864/240394603) Nothing to grows. And CPU on
bootstrap node on 100%
freebsd# ./nodetool -
My cassandra thrift interface was configured on that port, on one of nodes
Hello
I use follow python program to insert records into cassandra cluster (i my
test case this is two computers). And i have very very slow inserts (1.4 sec
per 100 records).
lazyboy python lib use round robin to chose which connection need use to
insert.
from lazyboy import *
from lazyboy.key
Thanks for your answer.
I read that doc. But i misunderstand what is 50Gb of Database??? How much
records in it?
lazyboy use ONE consistency level, and that is good.
I don't use multi_gets because they don't need for me and not usefull in my
case.
I don't think that cassandra has very fast writes
> and
> http://wiki.apache.org/cassandra/FAQ#what_kind_of_hardware_should_i_use
> ?
>
> Cheers
> TuxRacer
>
>
> ruslan usifov wrote:
>
>> Hello!
>>
>> I'm new in cassandra son i can misunderstand some things.
>>
>> In follow "benchmar
Hello!
I'm new in cassandra son i can misunderstand some things.
In follow "benchmark". I have insert 400 records like this
{"value": str(i), "text": "some small text"}
I use lazyboy lib (http://github.com/digg/lazyboy) to simplify work with
cassandra thrift interface. So my insert python
18 matches
Mail list logo
