Hi,
Reading in the documentation (specially on the tuning section) is clear the
the number of Column Families affects the performance, in particular the
amount of memory assigned to the heap.
My question is: What's the hard limit on the number of CFs?
Does anybody implemented an application with l
Are you using Virtual Machines to run Cassandra? Ive found that performance
in VMs is crap
Nicolas Santini
On Thu, Feb 3, 2011 at 11:17 PM, aaron morton wrote:
> This page has a guide to setting the initial tokens for the nodes
> http://wiki.apache.org/cassandra/Operations#Ring_management
>
> <
One thing you can do is create one CF, then as the row key use the
application name + timestamp, with that you can do your range query using
OOP. then store whatever you want in the row
problem would be if one app generates far more logs than the others
Nicolas Santini
On Thu, Jan 27, 2011 at 1
Jan 25, 2011 at 2:59 PM, Nick Santini wrote:
>
>> Hi,
>> I'm trying a test scenario where I create 100 rows in a CF, then
>> use get_range_slices to get all the rows, and I get 100 rows, so far so good
>> then after the test I delete the rows using "remove&quo
Hi,
I'm trying a test scenario where I create 100 rows in a CF, then
use get_range_slices to get all the rows, and I get 100 rows, so far so good
then after the test I delete the rows using "remove" but without a column or
super column, this deletes the row, I can confirm that cos if I try to get
i
now :)
>
> Can you also tell me where to keep the cassandra folder with phpcassa to
> use it with wamp server.. Thanks for your great help!!
>
> Regards
> Rajkumar
>
>
> On Fri, Dec 17, 2010 at 2:31 AM, Nick Santini wrote:
>
>> just tried my self
>> seems
just tried my self
seems to be that you are not starting the cassandra process first
the cli is only to access it, not to start it
execute cassandra first
Nicolas Santini
On Fri, Dec 17, 2010 at 9:55 AM, Rajkumar Gupta wrote:
> yes I tried to connect through:
>
> *cassandra-cli -host localhost
found the issue, was on the logic of the test
sorry about crying wolf :-p
thanks for reading and all your help guys
Nicolas Santini
On Thu, Dec 16, 2010 at 3:55 PM, Nick Santini wrote:
> btw, inside the test the data row gets deleted, but not the secondary index
> row/columns
>
&g
btw, inside the test the data row gets deleted, but not the secondary index
row/columns
Nicolas Santini
On Thu, Dec 16, 2010 at 3:53 PM, Nick Santini wrote:
> ok, after a few tests and debugs ive found that is actually deleting those
> columns, so great
>
> but the problem is di
de where I inserted the references is exactly the same, but
> without the deletion part in the mutations
>
>
> Nicolas Santini
>
>
> On Thu, Dec 16, 2010 at 12:55 PM, Tyler Hobbs wrote:
>
>> What client are you using? If you're not using a client, what does your
#x27;re not using a client, what does your
> deletion code look like?
>
> - Tyler
>
>
> On Wed, Dec 15, 2010 at 4:58 PM, Nick Santini wrote:
>
>> thats not exactly what im seeing, is not a row, but columns on a row that
>> i was deleting
>>
>> ie:
>>
thanks
Nicolas Santini
On Thu, Dec 16, 2010 at 12:08 PM, Jonathan Ellis wrote:
> Known bug. Upgrade.
>
>
> On Wed, Dec 15, 2010 at 4:19 PM, Nick Santini wrote:
>
>> Hi,
>> im working with the 0.7beta2 version and using the supported secondary
>> indexes for S
utate, but you are probably
> seeing this:
>
> http://wiki.apache.org/cassandra/FAQ#range_ghosts
>
> - Tyler
>
>
> On Wed, Dec 15, 2010 at 4:26 PM, Nick Santini wrote:
>
>> since the 0.7beta2 version doesnt support indexes for Super CF or for
>> columns that you m
since the 0.7beta2 version doesnt support indexes for Super CF or for
columns that you might not now the name yet, im supporting them manually by
adding a row on the same CF where the key is the name of the column plus the
value, and in the columns hold the key to the referenced rows
this works as
Hi,
im working with the 0.7beta2 version and using the supported secondary
indexes for Standard CF
they work, as in I can find rows by searching on those indexes.
what ive just found is that when I delete the row, using "remove", the
indexes dont get updated, so im still able to find the referenc
Thanks Jonathan
Nicolas Santini
actually, the solution would be something like my last mail, but pointing to
the name of the super column and the row key
Nicolas Santini
Director of Cloud Computing
Auckland - New Zealand
(64) 09 914 9426 ext 2629
(64) 021 201 3672
On Fri, Dec 3, 2010 at 1:08 PM, Nick Santini wrote:
>
Hi,
as I got answered on my mail, secondary indexes for super column families is
not supported yet, so you have to implement your own
easy way: keep another column family where the row key is the value of your
field and the columns are the row keys of your super column family
(inverted index)
N
you will find secondary indexes are not supported for super columns
>
> Sent from my iPhone
>
> On Dec 3, 2010, at 10:22, Nick Santini wrote:
>
> > Hi,
> > Im creating a column family and adding some secondary indexes on the
> column definition for some columns inside
Hi,
Im creating a column family and adding some secondary indexes on the column
definition for some columns inside my super columns
I save a row, but then when I try to get the indexed slice with an
expression that would match that row I got nothing back
Is there anything special about secondary
Hi,
this is an hypothetical situation highly likely to happen:
I have a cassandra 0.7 cluster, filled with production data, and I want to
upgrade cassandra to the 0.8 version (and so on as new versions get
released)
what happen with my data and keyspace / column families definitions? whats
the pr
21 matches
Mail list logo
