The conversation around the partitioner sidetracks a bit from your original
question.
You originally asked:
>>
Business case: Show me all events for a given customer in a given time frame
In RDBMS it will be
(Query1)
where customer_id = '289'
and event_time >= '2016-03-01 18:45:00+' and even
eful given the
difference between the synthetic workload used to create those ratings and
the workload that Cassandra is producing for your particular case. You can
find out more about those here:
https://www.jedec.org/standards-documents/docs/jesd219a
Matt Kennedy
Sr. Product Manager, DSE Core
ndurance drive to replace your next round of failed units.
[image: datastax_logo.png] <http://www.datastax.com/>
Matt Kennedy
Partner Architect | +1.703.582.5017 | matt.kenn...@datastax.com
[image: linkedin.png] <https://www.linkedin.com/pub/matt-kennedy/25/258/663>
[ima
//hothardware.com/news/google-data-center-ssd-research-report-offers-surprising-results-slc-not-more-reliable-than-mlc-flash
and the paper that article mentions:
http://0b4af6cdc2f0c5998459-c0245c5c937c5dedcca3f1764ecc9b2f.r43.cf2.rackcdn.com/23105-fast16-papers-schroeder.pdf
Hope this helps.
Ma
On its way... https://issues.apache.org/jira/browse/CASSANDRA-1828
On Mar 10, 2011, at 11:17 PM, Mark wrote:
> I thought I read somewhere that Pig has an output format that can write to
> Cassandra but I am unable to find any documentation on this. Is this possible
> and if so can someone pleas
Great, that worked, thanks for your time.
On Thu, Mar 10, 2011 at 4:57 PM, Jonathan Ellis wrote:
> Drop the index, then restart once more. It shouldn't try to rebuild
> the index after that.
>
> On Thu, Mar 10, 2011 at 3:36 PM, Matt Kennedy
> wrote:
> > Sorry, I wa
more data than you can index
> in-memory.
>
> You should wait for the next Hudson build (which will include 2295)
> and use that. Or, create your indexes before adding the data.
>
> On Thu, Mar 10, 2011 at 12:26 PM, Matt Kennedy
> wrote:
> > Well it looks like the index
e I get to a certain number of indexes on the column family?
Thanks,
Matt
On Wed, Mar 9, 2011 at 8:40 PM, Jonathan Ellis wrote:
> https://issues.apache.org/jira/browse/CASSANDRA-2294
> https://issues.apache.org/jira/browse/CASSANDRA-2295
>
> On Wed, Mar 9, 2011 at 5:47 PM, Matt Kenned
I'm trying to gain some insight into what happens with a cluster when
indexes are being built, or when CFs with indexed columns are being written
to.
Over the past couple of days we've been doing some loads into a CF with 29
indexed columns. Eventually, the nodes just got overwhelmed and the clie
I'm currently the proud owner of an 8-node cluster that won't start up.
Yesterday we had a developer doing very high volume writes to our cluster
via a Hadoop job that was reading an HDFS file and running six concurrent
mappers on each of 8 nodes and using Hector to do the load and it sort of
kill
If you edit the $CASSANDRA_HOME/conf/cassandra-env.sh script, you should be
able to set up ssl for the JMX connection. That should allow you to do a
direct connection from a locally running JConsole to the JMX port on the
public IP of your EC2 instance.
On Wed, Mar 2, 2011 at 9:10 PM, Sameer Faroo
Apparently it is tricky, I found this: http://vafer.org/blog/20061010091658/
On Feb 26, 2011, at 4:17 PM, ruslan usifov wrote:
> Hello
>
> For example if servers in cluster hav etwo network interfaces, one of which
> is private (accessible only from local network). Is it possible to bind jmx
>
Right, so I'm interpreting silence as a confirmation on all points. I
opened:
https://issues.apache.org/jira/browse/CASSANDRA-2245
https://issues.apache.org/jira/browse/CASSANDRA-2246
to work on these.
On Wed, Feb 23, 2011 at 5:31 PM, Matt Kennedy wrote:
> Let me start out by sayin
a into Pig with this
sytax:
rows = LOAD 'cassandra://mykeyspace/mycolumnfamily?country=UK' using
CassandraStorage();
I'd like to get some feedback on that syntax.
Thanks,
Matt Kennedy
aves it on for everything else. So far, I can't see any
negative side effects from it.
Thoughts?
On Fri, Feb 11, 2011 at 3:37 PM, Matt Kennedy wrote:
> Sorry it has taken me a while to get back to this. I'm still trying to get
> to the bottom of this to find where the discon
es so with
only one mapper. It looks like the Pig map combiner isn't using the
split.getLength call to determine how the maps get combined as I originally
suspected. I'll update when I figure more out.
-Matt
On Sat, Feb 5, 2011 at 1:01 AM, Jonathan Ellis wrote:
> On Fri, Feb 4, 201
Found the culprit. There is a new feature in Pig 0.8 that will try to reduce
the number of splits used to speed up the whole job. Since the
ColumnFamilyInputFormat lists the input size as zero, this feature eliminates
all of the splits except for one.
The workaround is to disable this featu
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