+1 (non binding but lgtm)
On Wed, Sep 21, 2011 at 2:27 AM, Stephen Connolly
wrote:
> Hi,
>
> I'd like to release version 0.8.6-1 of Mojo's Cassandra Maven Plugin
> to sync up with the recent 0.8.6 release of Apache Cassandra.
>
>
> We solved 2 issues:
> http://jira.codehaus.org/secure/ReleaseNote
like Cassandra could detect data with the appropriate magic,
store as is and decode for us automatically on the way back.
Colin.
You don't have to use oracle and pay money, you can use postgresql for
example.
Triggers aren't that hard to implement. We actually do.all of our
mutations now via triggers and we did it inside by effectivley overriding
the mutate logic itself.
On Jan 20, 2012 11:42 AM, "Zach Richardson"
wrote:
ve any
> gotcha's I should be aware of wrt to the hardware?
>
> I do realise the CPU is fairly low computational power but I'm going
> to assume the system is going to be IO bound hence the RAM and SSD's.
>
>
> Thanks
>
> Jabbar Azam
--
*Colin Blower*
/Software Engineer/
Barracuda Networks Inc.
+1 408-342-5576 (o)
me new format.
5. Restart Cassandra process and monitor the logs file for any issues.
At step 5, we found the error messages as below.
Any ideas?
Thank you!
Colin
===
800200c9a66 |
f7af75d0-ddfa-11e2-b74c-35d7be46b354 | 2 | blah
11b1e59c-ddfa-11e2-a28f-0800200c9a66 |
f9893ee0-ddfa-11e2-b74c-35d7be46b354 | 1 | no
This way you can get the history of answers if you want and there is a
simple way to get the most current answers.
Just a though
ting key userId?
>
> Looking at the datastax driver code, is a bit confusing, it seems that
> it calculate the token only when all the values of a composite key is
> available, or I am missing something?
>
> Thanks,
>
> Haithem
>
--
*Colin Blower*
/Software Engineer/
Barracuda Networks Inc.
+1 408-342-5576 (o)
years. I hadn't noticed until I
> just upgraded to 1.2.6,
> but now I see it affects everything.
>
>
> Jim
--
*Colin Blower*
/Software Engineer/
Barracuda Networks Inc.
+1 408-342-5576 (o)
We've had our small cluster successfully running in production for ~6
weeks now with everything working beautifully. Over the weekend I
noticed the load on 2 boxes shoot up to 5-6x that of the others and
after kicking off a major compaction the load has come back down to
normal. What procedure sh
Java + Pelops
On Sat, Jan 15, 2011 at 10:58 PM, Dave Viner wrote:
> Perl using the thrift interface directly.
> On Sat, Jan 15, 2011 at 6:10 AM, Daniel Lundin wrote:
>>
>> python + pycassa
>> scala + Hector
>>
>> On Fri, Jan 14, 2011 at 6:24 PM, Ertio Lew wrote:
>> > Hey,
>> >
>> > If you have
Wouldn't something like Redis be a better fit than Cassandra?
On Tue, Feb 1, 2011 at 6:16 PM, Tong Zhu wrote:
> If it is a really session data, which will be active for a short time, a few
> hours, and it is OK to lose them, memcached is a better solution. I were
> using it when I was in Yahoo.
I'm seeing lots of ParNew messages which is affected performance,
along the lines of:
INFO 17:54:18,567 GC for ParNew: 1522 ms, 69437384 reclaimed leaving 979692384
used; max is 4424663040
INFO 17:54:22,567 GC for ParNew: 1989 ms, 69323576 reclaimed leaving 981439840
used; max is 4424663040
INF
I've got some data that I'm doing counts on, stored in a CF as:
{
:
:
}
With updates happening as an insert on the specific column.
I need to extract the top X values by count and I was wondering if
storing this as:
{
: PLACEHOLDER
: PLACEHOLDER
}
would be a bett
Hi Pete,
I set the swappiness to 0 but the problem remained. The only way I've
managed to avoid it is to use standard disk mode.
On Sat, Jun 5, 2010 at 9:14 PM, Peter Schuller
wrote:
>> INFO 17:54:18,567 GC for ParNew: 1522 ms, 69437384 reclaimed leaving
>> 979692384
>> used; max is 442466304
What were the right questions? I view Facebook's move away from
Cassandra as somewhat significant.
And are they indeed using HBase then, and if so, what were the right
answers?
On 7/6/2010 5:34 AM, David Strauss wrote:
On 2010-07-05 15:40, Eric Evans wrote:
On Sun, 2010-07-04 at 13:14
x27;t), then basing your
solution on un-proven storage solutions (commercial or open source, SQL
or NoSQL) is a risky and short sighted strategy."
Please send death threats via the channels iterated below:
Colin
+1 315 886 3422 cell
+1 701 212 4314 office
http://blog.cloudeventprocessing.co
Benjamin,
Please see below - it sounds like you're taking this a little personally
and I'm not sure why. You've made some errors in your reply.
Colin
+1 315 886 3422 cella
+1 701 212 4314 office
http://blog.cloudeventprocessing.com
http://twitter.com/EventCloudPro <
ntprocessing.com
http://twitter.com/EventCloudPro <http://twitter.com/EventCloudPro%20>
On 7/12/2010 7:07 PM, Jonathan Ellis wrote:
On Sat, Jul 10, 2010 at 2:22 PM, Colin Clark
wrote:
Although I'm a fan of Cassandra, there's no way I'd use it today for my tier
1 deployments,
Have you checked the timestamp you're using for the subsequent inserts
is higher than that used in the delete?
On Thu, Jul 22, 2010 at 2:29 AM, Oleg Tsvinev wrote:
> Hi there,
> I'm trying to implement a simple CRUD service based on Cassandra. I use
> Hector client.
> While writing tests, I found
+1 for this
> I know this is a fun thread, and I hate being a "debby downer"
> but...In my opinion, naming servers after anything then their function
> is not a great idea. Lets look at some positives and negatives:
>
> System1:
> cassandra01
> cassandra02
> cassandra03
>
> VS
>
> System2:
> tom
>
Are you using mmapped i/o? If so you'll be running into
https://issues.apache.org/jira/browse/CASSANDRA-1214
On Tue, Sep 7, 2010 at 6:38 PM, Dathan Pattishall wrote:
> For this java process
>
> /opt/java/bin/java -ea -Xms1G -Xmx7G -XX:+UseParNewGC
> -XX:+UseConcMarkSweepGC -XX:+CMSParallelRemarkE
exist?
Thanks
Colin
after I post a fix for
> http://issues.apache.org/jira/browse/CASSANDRA-1415.
>
> On Thu, Sep 16, 2010 at 12:53 PM, Colin Britton
> wrote:
> > Hi,
> >
> > I am using Casandra 0.7 trunk (r997357) and am having issues with a
> > secondary index.
> >
>
Hi all,
I've just started playing with Cassandra and investigating if it's
useful for us, so please be gentle when I ask silly questions :).
When user super columns is it possible to perform a slice operation to
pull out all SC's/Keys that match a specific/range of column names?
Putting it more c
trying to
figure out if I could bypass the second index completely.
For other operations I need to extract the Top X entries for each row
key (LH)- does this sound sane or am I still stuck in RDBMS land?
On Wed, Mar 24, 2010 at 12:56 PM, Jeremy Dunck wrote:
> On Wed, Mar 24, 2010 at 4:57 AM,
Peter,
Do you think 0-padding the entries would be more efficient than just
implementing your own comparator?
On Wed, Mar 24, 2010 at 10:57 PM, Peter Chang wrote:
> If there's not much overhead, I recommend client side as well.
> Otherwise, you can only sort on column. Therefore, you could creat
Hi all,
I have read the docs and lots of posts on this
forum and it feels like things are starting to
click into place, but I wanted to make sure. Bear
with me please :)
Basically we have the following model:
Client {
projects: Collection
users: Collection
}
Project {
owner: User (in a
Hi,
In our architecture, our consultants want to perform some
analysis on the train, disconnected from the web.
How can I achieve this in Cassandra? I realise this isn't quite
the use-case that was thought about when the clustering
was designed, but will it work?
Scenario:
- consultantA is
Hi,
Assume I have:
SCF: Projects : {
CF:"project1": {
20100101: {cost:10, other columns},
20100102: {cost:10, other columns},
.
20100120: {cost 10, other columns}
},
CF:"project2": {
20100105: {cost:12, other columns}
.
Thanks for all your advice - I am evaluating couchDB now. I can
see that each is designed for different use-cases and couchDB is optimal
for this.
Many thanks all.
Col
Colin Yates gmail.com> writes:
Take a look at Hector, a Java client:
http://wiki.github.com/rantav/hector/
There's example code here:
http://github.com/rantav/hector/blob/master/src/main/java/me/prettyprint/cassandra/service/ExampleClient.java
On Fri, Apr 16, 2010 at 10:56 AM, Nirmala Agadgar wrote:
> Hi,
>
> Can anyone tel
e.rat/apache-rat/ivy-0.6.xml.original.
Parent=org.
apache.rat#apache-rat-project;0.6
When I wget those poms they do look like binary corrupted files.
Any suggestions? Can anyone else build from scratch [ie blowing away ivy cache]
cheers
Colin
n Thu, Apr 29, 2010 at 10:32 AM, Colin Taylor wrote:
> Hi, I currently can't build Cassandra from the source repository.
> I get a bunch of checksum issues like:
>
> [ivy:retrieve] problem while downloading module descriptor:
> http://repo1.maven.org/maven2/org/apache/apache/
Hello !
I'm experiencing a data imbalance issue with one of my nodes within a
3-nodes C* 2.1.4 cluster. All of them are using JBOD (2 physical disks),
and this particular node seems to have recently made a relatively big
compaction (I'm using STCS), creating a 56Go SSTable file, which results in
o
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