Hi
Is the client API for cassandra available in AVRO. If so, any links to
examples or some documentation ?
and If so, any comparison between Thrift and Avro API's to determine the
better of them ?
Thanks
Atul
Mubarak Seyed seyed at apple.com writes:
- How does client (application) connect to cassandra cluster? Is it always for
one node (and thrift can get ring info) and send the request to connected node
This depends on client library you use. Any cassandra node can accept client
connections and
On Fri, 2010-06-18 at 12:27 +0530, Atul Gosain wrote:
Is the client API for cassandra available in AVRO.
Significant parts of it, but it is not yet finished.
If so, any links to examples or some documentation?
There is no samples or documentation yet, sorry.
and If so, any comparison
Would be interesting to have a snitch that manipulated responses for
read nodes based on historical response times.
On Fri, Jun 18, 2010 at 8:21 AM, James Golick jamesgol...@gmail.com wrote:
Our cassandra client fails over if a node times out. Aside from actual
failure, repair and major
See https://issues.apache.org/jira/browse/CASSANDRA-981
-Original Message-
From: Benjamin Black b...@b3k.us
Sent: Friday, June 18, 2010 12:32pm
To: user@cassandra.apache.org
Subject: Re: Failover and slow nodes
Would be interesting to have a snitch that manipulated responses for
read
To summarize:
If a request for a column comes in *after a period of several hours
with no requests*, then the node servicing the request hangs while
looking for its peer rather than servicing the request like it should.
It then throws either a TimedOutException or a (wrong)
NotFoundExeption.
And
*Hopefully* fixed. I was never able to duplicate the problem on my
workstation, but I had a pretty good idea what was causing the
problem. Julie, if you're in a position to apply and test the fix, it
would help help us make sure we've got this one nailed down.
Gary.
On Thu, Jun 17, 2010 at
In 0.6.x the iterating approach works ... but you need to flush and compact
(after GCGraceSeconds) in order to NOT see the keys in the CF.
Will the behavior of the truncate method in 0.7 require flush/compact as well?
Or will it be immediate?
-phil
On Jun 18, 2010, at 1:29 PM, Benjamin Black
On Fri, 2010-06-18 at 11:00 -0700, Paul Brown wrote:
At the risk of asking about religion (but with no interest in hearing
about it), why Avro instead of something like plain-old-JSON over
HTTP?
At the risk of having this thread veer off on a very long tangent...
In a nutshell, we need a way
As mentioned in the #cassandra IRC channel - there's going to be a dinner in
Austin on July 15th for people interested in Cassandra.
For those interested: http://cassandradinneraustin.eventbrite.com/
(Sorry if this doesn't apply to everyone, but everyone is welcome :)
blow all the data away ... how do you do that? What is the timestamp
precision that you are using when creating key/col or key/supercol/col items?
I have seen a fail to write a key when the timestamp is identical to the
previous timestamp of a deleted key/col. While I didn't examine the source
i'll jump in ... why AVRO over Thrift. can you guys point me at a
comparison? (i know next to nothing about both of them)
On 06/18/2010 03:41 PM, Paul Brown wrote:
On Jun 18, 2010, at 2:12 PM, Eric Evans wrote:
On Fri, 2010-06-18 at 11:00 -0700, Paul Brown wrote:
At the risk of
On Fri, Jun 18, 2010 at 2:12 PM, Eric Evans eev...@rackspace.com wrote:
On Fri, 2010-06-18 at 11:00 -0700, Paul Brown wrote:
At the risk of asking about religion (but with no interest in hearing
about it), why Avro instead of something like plain-old-JSON over
HTTP?
At the risk of having
On Fri, Jun 18, 2010 at 4:57 PM, Miguel Verde miguelitov...@gmail.com wrote:
On Fri, Jun 18, 2010 at 6:23 PM, Tatu Saloranta tsalora...@gmail.com
wrote:
Not that I wanted to criticize choices, but do they actually allow use
of JSON as encoding?
Avro does use JSON for specifying schemas, but
I tried the following :
- always one cassandra node on one EC2 m.large instance. two other m.large
instance, I run 4 stress.py (50 thread each, 2 stress.py on each instance)
- RAID0 EBS for data and ephemeral EBS (/dev/sda1 partition) for commit log.
- -Xmx4G
and I did not see any improvements
Howdy!
So, last week I finally got around to playing with Cassandra. After a
while I understood the basics. To test this assumption I started
working on my own Client implementation since Learning-by-doing is
what I do and existing Ruby Clients (which are awesome) already
abstracted too much for
@Chris, Did you get any bench you could share with us?
We're still working on it. It's a lower priority task so it will take a
while to finish. So far we've run on all the AWS data centers in the US
and used several different setups. We also did a test on Rackspace with
one setup and some
Fixed for 0.6.3: https://issues.apache.org/jira/browse/CASSANDRA-1042
On Fri, Jun 18, 2010 at 2:49 PM, Corey Hulen c...@earnstone.com wrote:
We are using MapReduce to periodical verify and rebuild our secondary
indexes along with counting total records. We started to noticed double
counting
I can't think of any scenario where leaving Cassandra idle would
affect the results returned. I think something else is going on here.
On Fri, Jun 18, 2010 at 2:05 AM, Manfred Muench
docma...@domainerschoice.com wrote:
Hi,
I have noticed the following behaviour (bug?) which I don't completely
Awesome...thanks.
I just downloaded the patch and applied it and verified it fixes our
problems.
what's the ETA on 0.6.3? (debating on weather to tolerate it or maintain
our own 0.6.2+patch).
-Corey
On Fri, Jun 18, 2010 at 8:21 PM, Jonathan Ellis jbel...@gmail.com wrote:
Fixed for 0.6.3:
Looks like the end of June.
On Fri, Jun 18, 2010 at 8:38 PM, Corey Hulen c...@earnstone.com wrote:
Awesome...thanks.
I just downloaded the patch and applied it and verified it fixes our
problems.
what's the ETA on 0.6.3? (debating on weather to tolerate it or maintain
our own 0.6.2+patch).
Hi Maxim,
Lucandra doesn't support numeric queries quite yet. A workaround would
be to load your numbers and convert them to strings.
I'll eventually add support for this. Please feel free to help out if
you can :)
Jake
On Jun 17, 2010, at 1:16 PM, Maxim Kramarenko
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