On Thu, Jan 3, 2013 at 10:21 AM, Alain RODRIGUEZ arodr...@gmail.com wrote:
Does this mean that there absolutely no way to switch to the new
partitioner for people that are already using Cassandra ?
Yes, that is what this means.
--
Sylvain
Hi,
I use the following code to generate the primary key.
public static java.util.UUID getTimeUUID() {
return java.util.UUID.fromString(new
com.eaio.uuid.UUID().toString());
}
Is this the correct approach?
Do let me know if there i any better approach which guarantees no
Hi Everton,
AFAIK, the pb is not forcing data to a specific node, but forcing some kind of
data locality.
There is things into cql to do it: you define a composite key (K1, K2), and K1
part is used as a rowkey and K2 is used within column name. So, all rows with
same K1 are on the same node.
Another option is PlayOrm UniqueKeyGenerator.generateKey(). While it is not
returning a UUID, it does return a unique key for a specific cluster that is
nice and short too.
Dean
From: Baskar Sikkayan techba...@gmail.commailto:techba...@gmail.com
Reply-To:
Multiple nodes could be a problem but multiple threads is probably just fine.
If you have two threads write to the same column, the last one wins though so I
hope your timestamps are unique even across threads so you don't lose data ;).
Dean
From: Jay Svc
Hi Dominique,
I have the same problem! I would like to place an object in a specific node
because I'm working in a spatial application. How should I choose the K1
part to forcing a given object to go to a node?
2013/1/3 DE VITO Dominique dominique.dev...@thalesgroup.com
Hi Everton,
**
Hi Sávio,
There is no definitive response: it depends on your business model ;-)
I just guess here it should be something like the id of some data root.
Take also a look at http://www.datastax.com/dev/blog/schema-in-cassandra-1-1
and look for partition key, if you want to go through CQL.
De :
Does anyone see anything wrong in these settings? Anything to account for a 8s
timeout during a counter increment?
Thanks,
André
On 31/12/2012, at 14:35, André Cruz andre.c...@co.sapo.pt wrote:
On Dec 29, 2012, at 8:53 PM, Mohit Anchlia mohitanch...@gmail.com wrote:
Can you post gc
Your description above was much better :-) I'm more interested in docs for
the raw metrics provided in JMX.
I don't think there are any good docs for what is exposed directly through
JMX. Most of the OpsCenter metrics map closely to one exposed JMX item, so
that's a start. Other than that,
I'm having huge upgrade issues from 1.1.7 - 1.2.0 atm but in a 12 node cluster
which I am slowly massaging into a good state I haven't seen this in 15+ hours
of operation…
This looks related to JNA?
From: Alain RODRIGUEZ arodr...@gmail.commailto:arodr...@gmail.com
Reply-To:
Wow, so you're going live with 1.2.0, good luck with that. When it's done,
whould you mind letting me know if everything went fine or if you have some
advice or feedback?
This looks related to JNA?
Does it ? The only thing logged about JNA is the following : JNA mlockall
successful.
What does
:) yes, I'm crazy
The assertion appears to be compiled code which is why I was guessing jna.
Biggest issue right now is that upgraded 1.2.0 nodes only see other 1.2.0 nodes
in the ring. 1.1.7 nodes don't see the 1.2.0 nodes..
Upgrading every node to 1.2.0 now lists all nodes in the ring...
On
By the way 10% faster does not necessarily mean 10% more requests.
https://issues.apache.org/jira/browse/CASSANDRA-2975
https://issues.apache.org/jira/browse/CASSANDRA-3772
Also if you follow the tickets My tests show that Murmur3Partitioner
actually is worse than MD5 with high cardinality
Just a shot in the dark, but I would try setting -Xss higher then the
default. It's probably like 180, but I cant even start at that level,
bumped it up to 256 for JDK 7.
On Thu, Jan 3, 2013 at 12:02 PM, Michael Kjellman
mkjell...@barracuda.comwrote:
:) yes, I'm crazy
The assertion appears to
Without knowing any details of your problem, try using a Time To Live on the
column.
You will get a better reply if you ask a more specific question.
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 3/01/2013, at
I am not sure which
Avro data types Cassandra support
None.
Any mention to avro internally is from a dark time in the past.
Cassandra presents it's own data model, which can be used to store pretty much
anything. So you could serialise the avro types and store them as byte streams
if you
The only true drain is
1) turn on ip tables to stop all incoming traffic
2) flush
3) wait
4) delete files
5) upgrade
6) restart
On Thu, Jan 3, 2013 at 2:59 PM, Michael Kjellman mkjell...@barracuda.comwrote:
That's why I didn’t create a ticket as I knew there was one. But, I
thought this had
Instead, I get an error from CassandraStorage that the initial address isn't
set (on the slave, the master is ok).
Can you post the full error ?
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 11:15
Collections might be what you are looking for
http://www.datastax.com/dev/blog/cql3_collections
Cheers
-
Aaron Morton
Freelance Cassandra Developer
New Zealand
@aaronmorton
http://www.thelastpickle.com
On 4/01/2013, at 11:35 AM, Renato Marroquín Mogrovejo
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