Expiring columns are 0.7 only.
An expired column behaves like a deleted column until it is compacted away.
On Mon, Oct 4, 2010 at 8:48 AM, Utku Can Topçu u...@topcu.gen.tr wrote:
Hi Jonathan,
Thank you for mentioning about the expiring columns issue. I didn't know
that it had existed.
A simpler approach might be to insert expiring columns into a 2nd CF
with a TTL of one hour.
On Mon, Oct 4, 2010 at 5:12 AM, Utku Can Topçu u...@topcu.gen.tr wrote:
Hey All,
I'm planning to run Map/Reduce on one of the ColumnFamilies. The keys are
formed in such a fashion that, they are
What I can understand from behaving like a deleted column is
- They'll be there for at most GCGraceSeconds?
On Mon, Oct 4, 2010 at 3:51 PM, Jonathan Ellis jbel...@gmail.com wrote:
Expiring columns are 0.7 only.
An expired column behaves like a deleted column until it is compacted away.
On
Hi Peter,
Thanks again for your time and thoughts on this problem.
We think we've got a bit ahead of the problem by just
scaling back (quite savagely) on the rate that we try to
hit the cluster. Previously, with a surplus of optimism,
we were throwing very big Hadoop jobs at Cassandra,
On 4 October 2010 10:58, Utku Can Topçu u...@topcu.gen.tr wrote:
Recently I've tried to upgrade (hw upgrade) one of the nodes in my cassandra
cluster from ec2-small to ec2-large.
Something that bit me on this (I've done it with both
Cassandra and Hadoop boxes, and some problems
might be more
Hi Jonathan,
Thank you for mentioning about the expiring columns issue. I didn't know
that it had existed.
That's really great news.
First of all, does the current 0.6 branch support it? If not so, is the
patch available for the 0.6.5 somehow?
And about the deletion issue, if all the columns in a
Hey All,
Recently I've tried to upgrade (hw upgrade) one of the nodes in my cassandra
cluster from ec2-small to ec2-large.
However, there were problems and since the IP of the new instance was
different from the previous instance. The other nodes didnot recognize it in
the ring.
So what should
It should work this way:
1. Move your data to the new node (scp, etc.)
2. Make sure the new node is configured to use the same token as the new node.
3. Stand up the new node.
4. Turn off the old node.
If your environment is volatile, it's probably best to run `nodetool
repair` on the new node.
from the Upgrading section of NEWS.txt:
The Cassandra inter-node protocol is incompatible with 0.6.x
releases (and with 0.7 beta1), meaning you will have to bring your
cluster down prior to upgrading
On Mon, Oct 4, 2010 at 8:53 AM, Ian Rogers ian.rog...@contactclean.com wrote:
I've
Thanks, I just pushed ahead with the rolling upgrade with bootstrap
off. This just meant the beta1 cluster got smaller and dissappeared
while the beta2 cluster got bigger and took over.
This is only a dev system so no writes will/should have been lost.
Ian
On 04/10/2010 14:55, Jonathan
Yes, but probably not in 0.7.0.
On Sun, Oct 3, 2010 at 12:08 PM, Petr Odut petr.o...@gmail.com wrote:
Thanks for the info. Will be ever possible to going throught a secondary
index (since SI is sorted by default)? My use case is to display newest
comments, users, etc. SI from my point of view
partly good news, thanks
Petr Odut
On Mon, Oct 4, 2010 at 5:40 PM, Jonathan Ellis jbel...@gmail.com wrote:
Yes, but probably not in 0.7.0.
On Sun, Oct 3, 2010 at 12:08 PM, Petr Odut petr.o...@gmail.com wrote:
Thanks for the info. Will be ever possible to going throught a secondary
index
Hello all,
I am here with a very basic question.
I am very new to Cassandra slowly migrating from RDBMS world. Is there any
worked example that I can use it to learn Cassandra? I have lots of
documentation around Cassandra but any simple worked example will be of
great help in understanding
Did you see twissandra linked from
http://wiki.apache.org/cassandra/ArticlesAndPresentations ?
(Twissandra is targetted at 0.7 now, btw.)
On Mon, Oct 4, 2010 at 10:56 AM, Himanshu Jani himanshu.j...@gmail.com wrote:
Hello all,
I am here with a very basic question.
I am very new to Cassandra
http://wiki.apache.org/cassandra/UseCases
On Mon, Oct 4, 2010 at 5:56 PM, Himanshu Jani himanshu.j...@gmail.comwrote:
Hello all,
I am here with a very basic question.
I am very new to Cassandra slowly migrating from RDBMS world. Is there any
worked example that I can use it to learn
I posted a real life example how we used cassandra to store data for a
facebook chat like application. Check it out at
http://www.juhonkoti.net/2010/09/25/example-how-to-model-your-data-into-nosql-with-cassandra
- Juho Mäkinen
On Mon, Oct 4, 2010 at 7:04 PM, Petr Odut petr.o...@gmail.com wrote:
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