Hello,
We have a cluster of 4 nodes (0.6.6) and use the random partitioner and a
replication of 2.
When I insert a number of rows I can always retrieve them by their explicit id
(get_range_slices("","", 1).
Playing with consistency levels and temporarily shutting down a Cassandra node
all yield
Hi,
I'm trying the WordCount example and getting this error:
[12:33]$ ./bin/word_count
10/11/10 12:34:35 INFO WordCount: output reducer type: filesystem
10/11/10 12:34:36 INFO jvm.JvmMetrics: Initializing JVM Metrics with
processName=JobTracker, sessionId=
10/11/10 12:34:36 INFO WordCount: XXX:te
If I understand your correctly, you just want to add 8 nodes to a ring that
already has 2 ?
You could add the nodes and manually assign them tokens following the
guidelines here http://wiki.apache.org/cassandra/Operations
I'm not sure how to ensure the minimum amount of data transfer though. A
Thanks for the anwser.
It was not exactly my point, I would like to know if in a 10 nodes rings if
it is possible to restrict replication of some data to only 2 nodes, and
other data to all nodes ?
Regards.
Jean-Yves
On Wed, Nov 10, 2010 at 11:17 AM, aaron morton wrote:
> If I understand your co
Hi,
I am using cassandra to store a message steam, and want to use timestamps (like
mmddhhMIss or something alike) as the keys.
So if I use RandomPartitioner, I will loose the order when using
get_range_slices().
If I use OrderPreservingPartitioner, how should I configure cassandra to make
l
> I am using cassandra to store a message steam, and want to use timestamps
> (like mmddhhMIss or something alike) as the keys.
> So if I use RandomPartitioner, I will loose the order when using
> get_range_slices().
> If I use OrderPreservingPartitioner, how should I configure cassandra to
> m
Yes, on a per-keyspace basis with NetworkTopologyStrategy (in 0.7).
On Wed, Nov 10, 2010 at 4:40 AM, Jean-Yves LEBLEU wrote:
> Thanks for the anwser.
>
> It was not exactly my point, I would like to know if in a 10 nodes rings if
> it is possible to restrict replication of some data to only 2 nod
http://www.mail-archive.com/user@cassandra.apache.org/msg07093.html
On Wed, Nov 10, 2010 at 5:47 AM, Patrik Modesto
wrote:
> Hi,
>
> I'm trying the WordCount example and getting this error:
>
> [12:33]$ ./bin/word_count
> 10/11/10 12:34:35 INFO WordCount: output reducer type: filesystem
> 10/11/1
Was the node that should have the other replica of this row down when
it was inserted?
On Wed, Nov 10, 2010 at 6:08 AM, Eric van Orsouw
wrote:
>
> Hello,
>
>
>
> We have a cluster of 4 nodes (0.6.6) and use the random partitioner and a
> replication of 2.
>
> When I insert a number of rows I can
Hi,
Assuming I'm reading and writing with consitency level 1 (one), read repair
turned off, I have a few questions about data propagation.
Data is being stored at consistency level 3.
I'm not interested in the deletes. I can live with older data (or data that
has been deleted and will reappear),
No, all nodes were up and running while the single key was inserted.
The insert however was with consistency One. I assume however that the replicas
are still written in this case.
It is btw also very reproducible.
-Original Message-
From: Jonathan Ellis [mailto:jbel...@gmail.com]
Sent:
Hi,
I am trying to iterate over the entire dataset to calculate some
information. Now the way I am trying to do this is by going directly to the
node that has a data range, so here is the route I am following
- get TokenRange using - describe_ring
- then for each tokenRange pick a node and
> 1) If all nodes are up:
> - Will all writes eventually reach all nodes (of the 3 nodes)?
I believe that if read repair is completely off, then for data that
was written that did *not* get saved by hinted hand-off, would not
propagate until anti-entropy as part of a 'nodetool repair' or perhaps
Also, your Mapper class needs to look like this:
MyMapper extends Mapper,Text,SumWritable> ... with all the necessary fixes to the map method.
AD
-Original Message-
From: Jonathan Ellis [mailto:jbel...@gmail.com]
Sent: Wednesday, November 10, 2010 8:40 AM
To: user
Subject: Re: WordCount
Interesting. Does it simplify further to RF=1 and 2 nodes?
On Wed, Nov 10, 2010 at 8:58 AM, Eric van Orsouw
wrote:
> No, all nodes were up and running while the single key was inserted.
> The insert however was with consistency One. I assume however that the
> replicas are still written in this
On Wed, Nov 10, 2010 at 8:54 AM, Thibaut Britz
wrote:
> Assuming I'm reading and writing with consitency level 1 (one), read repair
> turned off, I have a few questions about data propagation.
> Data is being stored at consistency level 3.
> 1) If all nodes are up:
> - Will all writes eventually
Aditya,
Can you reproduce the problem locally with "pig -x local myscript.pig"?
Also, moving this message back to the cassandra user list.
On Nov 10, 2010, at 10:47 AM, Aditya Muralidharan wrote:
> Hi,
>
> I'm still getting the error associated with
> https://issues.apache.org/jira/browse/CAS
moving this to the cassandra user list.
On Nov 10, 2010, at 11:05 AM, Aditya Muralidharan wrote:
> Hi,
>
> I'm building (on windows) a release tar from the HEAD of the Cassandra 0.7
> branch. Running a new single node instance of Cassandra gives me the
> following bootstrap exception:
> INFO 1
Hey Aditya,
Would you mind attaching that last hundred few lines from before the exception
from the server log to this ticket:
https://issues.apache.org/jira/browse/CASSANDRA-1724 ?
Thanks,
Stu
-Original Message-
From: "Jeremy Hanna"
Sent: Wednesday, November 10, 2010 11:40am
To: user
Cassandra keys and values are just bytes. My values range from simple doubles
to complex objects so I need to serialize them with something like avro, thrift
or protobuf.
Since I am working in a test environment and casssandra is moving to avro I
decided to use the avro protocol to communicate
My bad. Moved to Cassandra user list.
-Original Message-
From: Aditya Muralidharan [mailto:aditya.muralidha...@nisc.coop]
Sent: Wednesday, November 10, 2010 10:48 AM
To: u...@pig.apache.org
Subject: RE: MapReduce/Hadoop in cassandra 0.7 beta3
Hi,
I'm still getting the error associated w
We are moving towards treating Thrift more as a driver than as a
format itself, and using libraries like Hector, pycassa, and phpcassa
from the client.
On Wed, Nov 10, 2010 at 1:03 PM, Koert Kuipers
wrote:
> Cassandra keys and values are just bytes. My values range from simple
> doubles to comple
Hello,
We've had Cassandra running in a single production data center now for several
months and have started detailed plans to add data center fault tolerance.
Our requirements do not appear to be solved out-of-the-box with Cassandra. I'd
like to share a solution we're planning and find others
It's been about a month since our last stable update and we've
accumulated a few changes[1] worth having, so I'm pleased to announce
the release of 0.6.7.
If you're coming from a version older than 0.6.6 then please be sure to
read the release notes[2]; upgrades from 0.6.6. should be completely
s
On Wed, Nov 10, 2010 at 10:05 AM, Anand Somani wrote:
> Hi,
>
> I am trying to iterate over the entire dataset to calculate some
> information. Now the way I am trying to do this is by going directly to the
> node that has a data range, so here is the route I am following
>
> get TokenRange using
Afternoon all - I'm playing with 0.7beta3 on some boxes I have here at the
office and while checking out the stats from one of my tests I'm seeing Write
Latency being reported as "0.009 ms". I haven't done any timing yet in my
client, but is this really microsecond latency, or is there a mismatc
Yeah, that's really microsecond latency. Note, though that this isn't
the full request timing, its just the storage proxy down, so it
doesn't account for any latency added by thrift or the network.
-ryan
On Wed, Nov 10, 2010 at 1:43 PM, Rock, Paul wrote:
> Afternoon all - I'm playing with 0.7bet
Hi,
I'm trying to work out a way to support a non-unique index.
For example, lets say I have a contact list, where its possible to have
Names that are the same but are for different people and so should have
different contact entries but I'd want to be able to search on their full
name and get a
On Wed, Nov 10, 2010 at 5:55 PM, J T wrote:
> CF: Contacts (with an index on 'fullname')
> key : id1 { fullname : "John Brown", address : "London" }
> key : id2 { fullname : "John Brown", address : "Paris" }
> Would the 0.7 index on fullname allow me to lookup the 2 entries if I
> searched on "
Ok, so non-unique indexes are supported, but only full equality matches on
the values are supported right now.
Will it in the future allow for partial/range matches ?
e.g. Find all contacts with a J as the first letter ?
Jason
On Thu, Nov 11, 2010 at 12:13 AM, Jonathan Ellis wrote:
> On Wed,
https://issues.apache.org/jira/browse/CASSANDRA-1630
On Wed, Nov 10, 2010 at 6:09 PM, gbanks wrote:
>
--
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com
Yes.
On Wed, Nov 10, 2010 at 6:39 PM, J T wrote:
> Ok, so non-unique indexes are supported, but only full equality matches on
> the values are supported right now.
> Will it in the future allow for partial/range matches ?
>
> e.g. Find all contacts with a J as the first letter ?
> Jason
> On Thu,
Warm regards,
Vibhaw Rajan
Application Developer-Mainframes
IBM India Pvt. Ltd. DLF IT Park, Chennai, India
Office +91 44 22723552 Mobile +91 996 253 3029
Email vibra...@in.ibm.com
"Success is not final, failure is not fatal: it is the courage to continue
that counts"
Thanks, I'll do.
P.
On Wed, Nov 10, 2010 at 16:28, Aditya Muralidharan
wrote:
> Also, your Mapper class needs to look like this:
> MyMapper extends Mapper IColumn>,Text,SumWritable> ... with all the necessary fixes to the map method.
>
> AD
>
> -Original Message-
> From: Jonathan Ellis [
That's exactly what's happening to me. I wonder why Google did't find it.
Thanks!
P.
On Wed, Nov 10, 2010 at 15:39, Jonathan Ellis wrote:
> http://www.mail-archive.com/user@cassandra.apache.org/msg07093.html
>
> On Wed, Nov 10, 2010 at 5:47 AM, Patrik Modesto
> wrote:
>> Hi,
>>
>> I'm trying t
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