Lost everything after topology change

Hi everyone, I'm coming to you because I'm quite in a pickle, and need to get the Cassandra database working asap… I tried to change the topology file and tried a node tool repair… in cassandra-cli when I tried to list a column family, it tells me null UnavailableException() at

Re: Lost everything after topology change

, Robert Coli rc...@eventbrite.com a écrit : On Mon, Aug 12, 2013 at 9:36 AM, Morgan Segalis msega...@gmail.com wrote: I'm coming to you because I'm quite in a pickle, and need to get the Cassandra database working asap… First, #cassandra on freenode is usually better for emergent cases like

Having 2 nodes with 100% Ownership ?

Hi everyone, I would like to have 100% Effective-Owership on both cassandra nodes… I just have created the second node now… ./nodetool ring gives me : Address DC RackStatus State Load Effective-Owership Token

Re: Having 2 nodes with 100% Ownership ?

token 2) move nodes to that token or use vnodes For the first option see: http://www.datastax.com/docs/0.8/install/cluster_init On Mon, Aug 12, 2013 at 12:06 PM, Morgan Segalis msega...@gmail.com wrote: Hi everyone, I would like to have 100% Effective-Owership on both cassandra

Re: Lost everything after topology change

you want to change, we should be able to help. Cheers - Aaron Morton Cassandra Consultant New Zealand @aaronmorton http://www.thelastpickle.com On 13/08/2013, at 4:52 AM, Morgan Segalis msega...@gmail.com wrote: Actually I was creating my second node… Since I

Re: Having 2 nodes with 100% Ownership ?

...@gmail.com a écrit : Hi, You should use a 50% token distribution as Mohit pointed out, but configure a replication factor of 2, so all your rows will be effectively in both nodes. -- Francisco Andrades Grassi www.bigjocker.com @bigjocker On Aug 12, 2013, at 2:44 PM, Morgan Segalis msega

Re: Having 2 nodes with 100% Ownership ?

the cassandra-topology.properties file ? (it is currently the out-of-the-box version) Thank you. Morgan. Le 13 août 2013 à 01:22, Robert Coli rc...@eventbrite.com a écrit : On Mon, Aug 12, 2013 at 4:19 PM, Morgan Segalis msega...@gmail.com wrote: It is still a little fuzzy when it comes to calculate

Re: Having 2 nodes with 100% Ownership ?

Le 13 août 2013 à 01:50, Robert Coli rc...@eventbrite.com a écrit : On Mon, Aug 12, 2013 at 4:41 PM, Morgan Segalis msega...@gmail.com wrote: So I fetched the whole apache-cassandra (not the /var/lib/cassandra) folder from my first server to my second server. Including the data directory

Adding my first node to another one...

Hi everyone, I'm trying to wrap my head around Cassandra great ability to expand… I have set up my first Cassandra node a while ago… it was working great, and data wasn't so important back then. Since I had a great experience with Cassandra I decided to migrate step by step my MySQL data to

Re: Adding my first node to another one...

here with questions and more details. Regards, Arthur -Original Message- From: Morgan Segalis Sent: Thursday, August 01, 2013 11:24 AM To: user@cassandra.apache.org Subject: Adding my first node to another one... Hi everyone, I'm trying to wrap my head around Cassandra great

Re: Adding my first node to another one...

Hi Rob, Le 2 août 2013 à 00:15, Robert Coli rc...@eventbrite.com a écrit : On Thu, Aug 1, 2013 at 2:07 PM, Morgan Segalis msega...@gmail.com wrote: Actually I was thinking I would like Cassandra choose by itself the token. You NEVER want Cassandra to choose its own token in production

Re: Store a timeline with uniques properties

@aaronmorton http://www.thelastpickle.com On 30/08/2012, at 11:32 PM, Morgan Segalis msega...@gmail.com wrote: Sorry for the scheme that has not keep the right tabulation for some people... Here's a space-version instead of a tabulation. user1 row :| lte

Re: Store a timeline with uniques properties

On 30/08/2012, at 11:32 PM, Morgan Segalis msega...@gmail.com wrote: Sorry for the scheme that has not keep the right tabulation for some people... Here's a space-version instead of a tabulation. user1 row :| lte| lte -1

Store a timeline with uniques properties

Hi everyone, I'm trying to use cassandra in order to store a timeline, but with values that must be unique (replaced). (So not really a timeline, but didn't find a better word for it) Let's me give you an example : - An user have a list of friends - Friends can change their nickname, status,

Re: Store a timeline with uniques properties

-status-change | user2-status-change | Le 30 août 2012 à 13:22, Morgan Segalis a écrit : Hi everyone, I'm trying to use cassandra in order to store a timeline, but with values that must be unique (replaced). (So not really a timeline, but didn't find a better word for it) Let's me give you

Re: Data model question, storing Queue Message

http://www.thelastpickle.com On 27/04/2012, at 1:30 AM, Morgan Segalis wrote: Hi everyone ! I'm fairly new to cassandra and I'm not quite yet familiarized with column oriented NoSQL model. I have worked a while on it, but I can't seems to find the best model for what I'm looking

Re: Data model question, storing Queue Message

feature should come do it's work. Le 30 avr. 2012 à 13:16, samal a écrit : On Mon, Apr 30, 2012 at 4:25 PM, Morgan Segalis msega...@gmail.com wrote: Hi Aaron, Thank you for your answer, I was beginning to think that my question would never be answered ;-) Actually, this is what I

Re: Data model question, storing Queue Message

Isn't kafka too young for production using purpose ? Clearly that would fit much better my needs but I can't afford early stage project not ready for production. Is it ? Le 30 avr. 2012 à 14:28, samal samalgo...@gmail.com a écrit : On Mon, Apr 30, 2012 at 5:52 PM, Morgan Segalis msega

Data model question, storing Queue Message

Hi everyone ! I'm fairly new to cassandra and I'm not quite yet familiarized with column oriented NoSQL model. I have worked a while on it, but I can't seems to find the best model for what I'm looking for. I have a Erlang software that let user connecting and communicate with each others,