Re: Short column names

2016-02-11 Thread Jeremy Hanna
It has been talked about in the past, see https://issues.apache.org/jira/browse/CASSANDRA-4175 for example. However with https://issues.apache.org/jira/browse/CASSANDRA-8099, the duplication of column names is gone. So once you’re on Cassandra 3+, this optimization is a lot less valuable. >

Short column names

2016-02-11 Thread Bhuvan Rawal
Hi, We are modelling schema for database revamp from mysql to Cassandra. It has been recommended in several places that column names must be kept as small as possible to optimise disk storage. I have a doubt here, why can't we map column names and store it as an index, say in memory. I mean, make

Re: Statistics.db file in Cassandra 3.0

2016-02-11 Thread Rajath Subramanyam
Thanks Tyler. Rajath Subramanyam On Wed, Feb 10, 2016 at 8:45 AM, Tyler Hobbs wrote: > Take a look at MetadataSerializer and the MetadataComponent subclasses. > > On Tue, Feb 9, 2016 at 4:34 PM, Rajath Subramanyam > wrote: > > > Hello Cassandra-Dev, > > > > I have not

Re: Keyspaces not found in cqlsh

2016-02-11 Thread Ryan Svihla
Kedar, I recommend asking the user list u...@cassandra.apache.org this list is for the development of cassandra and you're more likely to find someone on the user list who may have hit this issue. Curious issue though I haven't seen that myself. Regards, Ryan Svihla > On Feb 11, 2016, at 7:56

Keyspaces not found in cqlsh

2016-02-11 Thread kedar
Dev Team, Need some help with a burning cqlsh issue I am using cqlsh 5.0.1 | Cassandra 2.1.2, recently we are unable to see / desc keyspaces and query tables through cqlsh on either of the two nodes cqlsh> desc keyspaces cqlsh> use user_index; cqlsh:user_index> desc table list_1_10; Keyspac

Re: RandomPartitioner and new token allocation algorithm

2016-02-11 Thread Brice Dutheil
On Thu, Feb 11, 2016 at 12:28 PM, Sylvain Lebresne wrote: > and honestly the difference with Murmur3 are not big enough that its worth > going through a very painful migration if that's your case > Agreed, after some tests, we didn't found it was an actual issue for our *reasonably sized* cluste

Re: RandomPartitioner and new token allocation algorithm

2016-02-11 Thread Sylvain Lebresne
On Thu, Feb 11, 2016 at 11:56 AM, Romain Hardouin wrote: > I targeted the dev list because I would like to know why the developer > (patch by branimir and reviewed by benedict) mentions "Only supported with > the Murmur3Partitioner" whereas his patch uses IPartitioner interface. (I > will try to

Re: RandomPartitioner and new token allocation algorithm

2016-02-11 Thread Romain Hardouin
I targeted the dev list because I would like to know why the developer (patch by branimir and reviewed by benedict) mentions "Only supported with the Murmur3Partitioner" whereas his patch uses IPartitioner interface. (I will try to reach them on IRC if they don't see this message.)