¡Eureka!
At last !!!
the trick??
As well as putting the jar libraries dependecies in the sharelib folder in
hdfs ...
I had define this and the other environment variables in the bash_profile
and works fine if I launch pig scripts from command line shell.
I have to define these
variables: PIG_
Hello,
I have two questions regarding modelling a schema optimized for performance
for Cassandra.
My service does have users who can add a message to a list. The list of
message is sorted by date and displayed. When a user changes the message
the date is changed and the message moves to the top o
Hi,
I am not able to create collection inside another collection in Cassandra.
Please find screenshot below
[cid:image001.png@01CEF750.4A9B5020]
In the above screenshot, I am trying to create column named feeschedule with
type Map and Map have values which is of type List.
Could anybody sugge
Hi,
after adding 2 more nodes to a 4 nodes cluster (before) we are experiencing
high load on both new nodes. After doing some investigation we found out the
following:
- High cpu load on vm5+6
- Higher data load on vm5+6
- Write requests are evenly distributed to all 6 nodes by our client
appl
You could use CassandraAuthorizer and PaaswordAuthenticator which ships
with Cassandra. See this article[1] for a good overview.
[1]
http://www.datastax.com/dev/blog/a-quick-tour-of-internal-authentication-and-authorization-security-in-datastax-enterprise-and-apache-cassandra
On Thursday, Decembe
On Wed, Dec 11, 2013 at 10:49 PM, Aaron Morton wrote:
> It is the write latency, read latency is ok. Interestingly the latency is
> low when there is one node. When I join other nodes the latency drops about
> 1/3. To be specific, when I start sending traffic to the other nodes the
> latency for a
Hi Aaron,
As you can see in the picture, there is not much steal on iostat. That's
the same with top.
https://imageshack.com/i/0jm4jyp
Philippe
2013/12/10 Aaron Morton
> Thanks for the update Philip, other people have reported high await on a
> single volume previously but I don’t think it’s
Thanks!
On Wed, Dec 11, 2013 at 9:37 PM, Aaron Morton wrote:
> If you have two nodes, and RF 2, you will only be able to use eventual
> consistency. If you want to have stronger consistency and some redundancy 3
> nodes is the minimum requirement.
>
> In the current setup, with only 2 nodes, I w
Hey Folks,
I need some ideas about support implementing of pagination on the browser,
from the backend. So python code (backend) gets request from frontend with
page=1,2,3,4 and so on and count_per_page=50.
I am trying to use xget with column_count and buffer_size parameters. Can
someone explain
Why did you switch to RandomPartitioner away from Murmur3Partitioner? Have
you tried with Murmur3?
1. # partitioner: org.apache.cassandra.dht.Murmur3Partitioner
2. partitioner: org.apache.cassandra.dht.RandomPartitioner
On Fri, Dec 6, 2013 at 10:36 AM, srmore wrote:
>
>
>
> On Fri, De
On Thu, Dec 12, 2013 at 11:15 AM, J. Ryan Earl wrote:
> Why did you switch to RandomPartitioner away from Murmur3Partitioner?
> Have you tried with Murmur3?
>
>
>1. # partitioner: org.apache.cassandra.dht.Murmur3Partitioner
>2. partitioner: org.apache.cassandra.dht.RandomPartitioner
>
>
Hello,
We are in the process of isolating multiple applications currently running in
one large cassandra cluster to individual smaller clusters. Each application
runs in its own keyspace. In order to reduce/eliminate downtime for a
migration, I was curious if anyone had attempted the followin
Hi,
We did it once and it worked well.
Those two links should help (this is more or less what we've done) :
http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/operations/ops_add_dc_to_cluster_t.html
http://www.datastax.com/documentation/cassandra/1.2/webhelp/cassandra/operations
Hey Folks,
I have a row like this. 'twitter_row_key' is the row key and
411186035495010304 is column. Rest is values for 411186035495010304 column.
See below.
'twitter_row_key': OrderedDict([('411186035495010304', u'{"score": 0,
"tid": 411186035495010304, "created_at": "Thu Dec 12 17:29:24 +
Thanks Aaron.
On Wed, Dec 11, 2013 at 10:45 PM, Aaron Morton wrote:
> > SYSTEM_MANAGER.create_column_family('Narrative','Twitter_search_test',
> comparator_type='CompositeType', default_validation_class='UTF8Type',
> key_validation_class='UTF8Type', column_validation_classes=validators)
>
> Comp
Hi Michael,
Upgrading from 2.0.2 to 2.0.3 seems to have done the trick! Thank you for the
recommendation!
Best regards,
-David Laube
On Dec 9, 2013, at 3:57 PM, "Laing, Michael" wrote:
> My experience is that you must upgrade to 2.0.3 ASAP to fix this.
>
> Michael
>
>
> On Mon, Dec 9, 2013
Thank you for the reply Aaron. Unfortunately, I could not seem to find any
additional info in the logs. However, upgrading from 2.0.2 to 2.0.3 seems to
have done the trick!
Best regards,
-David Laube
On Dec 11, 2013, at 6:51 PM, Aaron Morton wrote:
>> [2013-12-08 11:04:02,047] Repair session
Below is my CQL table -
CREATE TABLE test1 (
id text,
record_name text,
record_value blob,
PRIMARY KEY (id, record_name)
)
here id column will have data like this -
timestamp.count
And here timestamp is in milliseconds but rounded up to nearest seconds. So
as
Thanks Aaron, I was able to generate sstables and load using sstableloader.
But after loading the tables when I do a select query I get this, the table
has only one record. Is there anything I am missing or any logs I can look
at.
Request did not complete within rpc_timeout.
On Wed, Dec 11, 2013
Hi Aaron,
It seems like you answered the question here.
https://groups.google.com/forum/#!topic/nosql-databases/vjZA5vdycWA
Can you give me the link to the blog which you mentioned
http://thelastpickle.com/2013/01/11/primary-keys-in-cql/
Thanks in advance
Varun
On Thu, Dec 12, 2013 at 3:36 P
Quote from
http://www.datastax.com/dev/blog/performance-improvements-in-cassandra-1-2
*"Murmur3Partitioner is NOT compatible with RandomPartitioner, so if you’re
upgrading and using the new cassandra.yaml file, be sure to change the
partitioner back to RandomPartitioner"*
On Thu, Dec 12, 2013 at
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