I have created an issue in jira
https://issues.apache.org/jira/browse/CASSANDRA-5544
--
Best regards
Shamim A.
06.05.2013, 22:26, "Shamim" :
> I think It will be better to open a issue in jira
> Best regards
> Shamim A.
>
>> Unfortunately I've just tried with a new cluster with RandomPart
I was going to open one. Great !
--
Cyril SCETBON
On May 7, 2013, at 9:03 AM, Shamim mailto:sre...@yandex.ru>>
wrote:
I have created an issue in jira
https://issues.apache.org/jira/browse/CASSANDRA-5544
___
> Use case = rows with rowkey like (folder id, file id)
> And operations read/write multiple rows with same folder id => so, it could
> make sense to have a partitioner putting rows with same "folder id" on the
> same replicas.
The entire row key the thing we use to make the token used to both lo
> I have also been changing types, e.g. lock_tokens__ from MAP
> to MAP.
The error looks like the schema was changed and a log replayed from before the
change. Which obviously is not something we would expect to happen.
Do you change the map type using ALTER TABLE (not sure if that is possible
> i want to know which cassandra client is better？
Go with Astynax or Native Binary, they are both under active development and
support by a vendor / large implementor.
Cheers
-
Aaron Morton
Freelance Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com
O
> Why did you increase the stack-size to 5.5 times greater than recommended?
> Since each threads now uses 1000KB minimum just for the stack, a large number
> of threads will use a large amount of memory.
I'd say that is the reason you are running out of memory.
Cheers
-
Aaron
I tried to use your quick workaround but the task is lasting really longer than
before even if it uses 2 mappers in //. The fact is that there are 1000 tasks.
Are you using vnodes ? I didn't try to disable them.
Kind% Complete Num Tasks Pending Running CompleteKilled
Fai
> -Message d'origine-
> De : aaron morton [mailto:aa...@thelastpickle.com]
> Envoyé : mardi 7 mai 2013 10:22
> À : user@cassandra.apache.org
> Objet : Re: cost estimate about some Cassandra patchs
>
> > Use case = rows with rowkey like (folder id, file id)
> > And operations read/write mu
Definitely knew that for major releases, didn't expect it for a minor
release at all.
Le 6 mai 2013 19:22, "Robert Coli" a écrit :
> On Sat, May 4, 2013 at 5:41 AM, Philippe wrote:
> > After trying every possible combination of parameters, config and the
> rest,
> > I ended up downgrading the ne
Dear All,
I am using cassandra bulkload program from
www.datastax.com/dev/blog/bulk-loading
In This for CSV entry we are giving column name and validation class .
Is there any way to get the column names and validation class directly from
database by giving
just keyspace and column family name
On 05/07/2013 01:37 AM, aaron morton wrote:
i want to know which cassandra client is better？
Go with Astynax or Native Binary, they are both under active development
and support by a vendor / large implementor.
Native Binary being which one specifically? Do you mean the new
DataStax java-dri
On 05/07/2013 01:28 AM, aaron morton wrote:
I have also been changing types, e.g. lock_tokens__ from MAP to MAP.
The error looks like the schema was changed and a log replayed from
before the change. Which obviously is not something we would expect to
happen.
Do you change the map type using A
I am running 1.2.4 with Vnodes and have been writing at low volume. I have
doubled the volume and suddenly 3 of my 6 nodes are showing much higher load
than the others (30 vs 3) and tpstats show the mutation stage as completely
full (see below). I did find a FileNotFoundException that I pasted
I'm recovering from a significant failure and so am doing lots of nodetool
move, removetoken, repair and cleanup.
For most of these I can do "nodetool netstats" to monitor progress but it
doesn't show anything for cleanup...how can I monitor the progress of
cleanup? On a related note: I'm able to
I have a column family with really wide rows set to use Snappy like this:
compression_options = {'sstable_compression' :
'org.apache.cassandra.io.compress.SnappyCompressor'}
My understanding is that if a file is compressed I should not be able
to use "strings" command to view its contents. B
Hi -I had a question on hinted-handoff. We have 2 DCs configured with overall
RF = 2 (DC1:1, DC2:1) and 4 nodes in each DC (total - 8 nodes across 2 DCs)
Now we do a write with CL = ONE and Hinted Handoff enabled.
*If node 'X ' in DC1 which is a 'replica' node is down and a write
co
On Tue, May 7, 2013 at 4:26 AM, Philippe wrote :
> Definitely knew that for major releases, didn't expect it for a minor
> release at all.
This sort of incompatibility is definitely more common between major
versions, but not unheard of within minor series.
=Rob
Hi all,
I was hoping you could provide some assistance with a data modeling
question (my apologies if a similar question has already been posed). I have
time based data that I need to store on a per customer (aka app id ) basis so
that I can easily return it in sorted order by event time.
We use PlayOrm to do 60,000 different streams which are all time series and use
the virtual column families of PlayOrm so they are all in one column family.
We then partition by time as well. I don't believe that we really have any
hotspots from what I can tell.
Dean
From: Keith Wright mailt
So in that case I would create a different column family for each app id
and then a "time bucket" key as the row key with perhaps an hour
resolution? Something like this:
create 123_table organic_events (
hour timestamp,
event_id UUID,
app_id INT,
event_time TIMESTAMP,
user_id INT,
Playorm is not yet on CQL3 and cassandra doesn't work well with +10,000
CF's as we went down that path and cassandra can't cope, so we have one
cassandra CF with 60,000 virtual CF's thanks to PlayOrm and a few other
CF's.
But yes, we bucket into hour or month or whatever depending on your rates
an
Hi - If we have a RF=2 in a 4 node cluster, how do we ensure that the backup
taken is only for 1 copy of the data ? in other words, is it possible for us to
take back-up only from 2 nodes and not all 4 and still have at least 1 copy of
the data ?
Thanks,
Kanwar
Not sure about making things go faster, but you should be able to monitor
it with nodetool compactionstats.
Thanks,
Mike
On Tue, May 7, 2013 at 12:43 PM, Brian Tarbox wrote:
> I'm recovering from a significant failure and so am doing lots of nodetool
> move, removetoken, repair and cleanup.
>
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