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Could someone please point me in right direction by commenting on the above
ideas ?
On Fri, Jan 28, 2011 at 11:50 PM, Ertio Lew ertio...@gmail.com wrote:
Hi,
I have two kinds of data that I would like to fit in one super column
family; I am trying this, for the reasons of implementing fast
This sounds reasonable to me; the general rule of thumb is, a row
should be data that you access together.
The tricky part is when you have data that is accessed multiple ways
for multiple queries. Sometimes the answer is denormalize,
sometimes the answer is accept that the queries you do less
I'm very new to Cassandra, but I'll pitch in my $0.02.
Row look-ups are super fast, why do you think it would be more efficient to
store these two rows together in the super column method you describe?
Why would you not just look-up the rows, one after the other?
If I understand correctly,
I am once again having severe problems with my Cassandra cluster. This time,
I straight up cannot read sections of data (consistency level ONE). Client
side, I am seeing timeout exceptions. On the Cassandra node, I am seeing
errors as shown below. I don't understand what has happened or how to fix
Hi All,
Does Cassandra 0.7.0 need to deserialize the complete row in order to count all
columns? I know from this ML that Cassandra 0.6 did that.
Thank you very much,
Oleg
When I do a lot of inserts into my cluster (10k at a time) I get timeouts
from Thrift, the TScoket.py module.
What do I do?
Thanks,
Maxim
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/TSocket-timing-out-tp5973548p5973548.html
Sent from the
This has not changed.
On Sat, Jan 29, 2011 at 3:37 PM, Oleg Proudnikov ol...@cloudorange.com wrote:
Hi All,
Does Cassandra 0.7.0 need to deserialize the complete row in order to count
all
columns? I know from this ML that Cassandra 0.6 did that.
Thank you very much,
Oleg
--
The recommendation is to wait few milliseconds and retry.
For Example if you use Hector ( I don't think it is your case), Hector will
retry to different nodes in your cluster and the retry mechanisms is tunable
as well.
On Sat, Jan 29, 2011 at 2:20 PM, buddhasystem potek...@bnl.gov wrote:
It may also be an idea to check the node's memory usage. I encountered this on
a few occasions and I simply killed
any unneeded process that was eating away my node's memory. In each instance it
worked fine after there was about 300MB of free memory
From: Patricio Echagüe
Sent: Sunday,
I try to re-generate the Java interface from cassandra.thrift, however, i
got error message as
gen-thrift-java:
[echo] Generating Thrift Java code from
/Documents/eclipse/MaaSWorkspace/C_7_0/interface/cassandra.thrift
[exec]
Looks like you have an old version of the Thrift compiler.
On Sat, Jan 29, 2011 at 9:27 PM, Liangzhao Zeng
liangzhao.z...@gmail.com wrote:
I try to re-generate the Java interface from cassandra.thrift, however, i
got error message as
gen-thrift-java:
[echo] Generating Thrift Java code
I a student and developing a web crawler and I want to use Cassandra +
Thrift.
I successfully have started the Cassandra and Cassandra-cli. But when I use
the source codes(JAVA) listed on the website, the program contains errors
and when I modify it by referencing the Doc the program hangs. How
Use Hector instead of pure Trift. https://github.com/rantav/hector/
And checkout wiki.
Thank you very much. I will try and use Hector.
Vedarth Kulkarni,
TYBSc (Computer Science).
On Sun, Jan 30, 2011 at 11:20 AM, Andrey V. Panov panov.a...@gmail.comwrote:
Use Hector instead of pure Trift. https://github.com/rantav/hector/
And checkout wiki.
How can I use Hector please can you explain me in detail ?
I am new to these things.
-
Vedarth Kulkarni,
TYBSc (Computer Science).
On Sun, Jan 30, 2011 at 11:20 AM, Andrey V. Panov panov.a...@gmail.comwrote:
Use Hector instead of pure Trift. https://github.com/rantav/hector/
And checkout
This project may be what you are looking for, or provide some inspiration
https://github.com/jbohman/logsandra
Cloud Kick has an example or rolling up time series data
https://www.cloudkick.com/blog/2010/mar/02/4_months_with_cassandra/
The schema below sounds reasonable. If you will always
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