Can you provide me a approximate estimation of performance gain ?
2016-04-01 19:27 GMT+02:00 Mateusz Korniak :
> On Friday 01 April 2016 13:16:53 vincent gromakowski wrote:
> > (...) looking
> > for a way to use some kind of tiering with few SSD caching hot data from
> > HDD.
> > I have identifi
But, if there were a Java driver provided by the Apache Cassandra project
itself, then it'd be an easy choice.
On Fri, Apr 1, 2016 at 2:16 PM Robert Coli wrote:
> On Fri, Apr 1, 2016 at 10:43 AM, James Carman
> wrote:
>
>> A, my bad. One might wonder why the heck the Java driver is "owned
On Fri, Apr 1, 2016 at 10:43 AM, James Carman
wrote:
> A, my bad. One might wonder why the heck the Java driver is "owned"
> by an outside entity, eh?
>
FWIW, the status quo prior to the Datastax drivers was a wide assortment of
non-compatible drivers in different languages, not one set of
Because it's a community driver not provided by the Apache project. There
have historically been community provided drivers in the past. See
Hector, Astyanax, pycassa, etc.
On Fri, Apr 1, 2016 at 10:43 AM James Carman
wrote:
> A, my bad. One might wonder why the heck the Java driver is "o
A, my bad. One might wonder why the heck the Java driver is "owned" by
an outside entity, eh?
On Fri, Apr 1, 2016 at 11:58 AM Tyler Hobbs wrote:
> I'm not sure which driver you're referring to, but if it's the java
> driver, it has its own mailing list that may be more helpful:
> https://gr
Anishek,
AFAIK you can not have clusters "overlap" each oder.
Just an idea: Try to address it as an sstable restore.
http://docs.datastax.com/en/cassandra/2.0/cassandra/operations/ops_snapshot_restore_new_cluster.html
What I would try to do (not tested!):
- create a logical DC in each cluster (
On Friday 01 April 2016 13:16:53 vincent gromakowski wrote:
> (...) looking
> for a way to use some kind of tiering with few SSD caching hot data from
> HDD.
> I have identified two solutions (...)
We are using lvmcache for that.
Regards,
--
Mateusz Korniak
"(...) mam brata - poważny, domator, l
I'm not sure which driver you're referring to, but if it's the java driver,
it has its own mailing list that may be more helpful:
https://groups.google.com/a/lists.datastax.com/forum/#!forum/java-driver-user
On Thu, Mar 31, 2016 at 4:40 PM, James Carman
wrote:
> No thoughts? Would an upgrade of
I am looking for way to optimize large reads.
I have seen using SSD is a good option but out of budget, so I am looking
for a way to use some kind of tiering with few SSD caching hot data from
HDD.
I have identified two solutions and would like to get opinions from you and
if you have any experienc
Hi ,
We have the data dump into directory taken from Mysql using the
CQLSSTableWriter.
Our requirement is to read this data and load it into MySql. We don't want
to use Cassandra as it will lead to read traffic and this operation is just
for some validation .
Can anyone help us with the solutio
Hi Joe,
> I am doing resource planning and could use some help.
I have been working alone 4 years operating a growing cluster (from 3 to
60+ nodes, from t1.micro instances to I2.2xlarge AWS instances), on the
biggest cluster, +2 other clusters and handling MySQL too :'(. I now joined
a team of
Hi,
is there any way to determine that rebuild is complete
If you ran it from a screen (
https://www.gnu.org/software/screen/manual/screen.html) or similar stuff,
you should see the command return.
Also, 'nodetool netstats | grep -v 100%' will show you remaining stream.
No stream = rebuild fin
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