Schema size

Hi All, I have a question about schema cleaning in cassandra. I use cassandra version 1.0.9. I have 5 keyspaces and about 1500 column family per keyspace. After dynamically creating and deleting CF my schema's sstables size were very high. For example size of Migrations was 45 GB and Schema

Schema changes not getting picked up from different process

Hi all, This is my first message on this posting list so I'm sorry if I am breaking any rules. I just wanted to report some sort of a problem that I'm having with Cassandra. Short version of my problem: if I make changes to the schema from within a process, they do not get picked up by the other

Re: Schema changes not getting picked up from different process

What version are you using? It might be related to https://issues.apache.org/jira/browse/CASSANDRA-4052 On 05/25/2012 07:32 AM, Victor Blaga wrote: Hi all, This is my first message on this posting list so I'm sorry if I am breaking any rules. I just wanted to report some sort of a problem

Re: Schema changes not getting picked up from different process

Hi Dave, Thank you for your answer. 2012/5/25 Dave Brosius dbros...@mebigfatguy.com What version are you using? I am using version 1.1.0 It might be related to https://issues.apache.org/jira/browse/CASSANDRA-4052 Indeed the Issue you suggested goes into the direction of my problem.

Re: Schema size

In Cassandra 1.1 the schema is no longer a full migration history. Before that each schema change is recorded in the table and they all have to be replayed when a node bootstraps. Also 1.1 has some bug ATM that means you should not switch to it. People tend to say things like with cassandra X you

FYI: Java 7u4 on Linux requires higher stack size

Hell all, We've started to test Oracle Java 7u4 (currently we're on 7u3) on Linux to try G1 GC. Cassandra can't start on 7u4 with exception: The stack size specified is too small, Specify at least 160k Cannot create Java VM Changing in cassandra-env.sh -Xss128k to -Xss160k allowed to start

Re: FYI: Java 7u4 on Linux requires higher stack size

Thanks, we're investigating in https://issues.apache.org/jira/browse/CASSANDRA-4275. On Fri, May 25, 2012 at 10:31 AM, Viktor Jevdokimov viktor.jevdoki...@adform.com wrote: Hell all, ** ** We’ve started to test Oracle Java 7u4 (currently we’re on 7u3) on Linux to try G1 GC. **

Frequent exception with Cassandra 1.0.9

I am running embedded Cassandra version 1.0.9 on Windows2008 Server frequently encounter the following exception: Stack: [0x7dc6,0x7dcb], sp=0x7dcaf0b0, free space=316k Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) j

RE: will compaction delete empty rows after all columns expired?

This is an old thread from December 27, 2011. I interpret the yes answer to mean you do not have to explicitly delete an empty row after all of its columns have been deleted, the empty row (i.e. row key) will automatically be deleted eventually (after gc_grace). Is that true? I am not

Re: will compaction delete empty rows after all columns expired?

do not delete empty rows. It refreshes tombstone and they will never expire.

CounterColumns with double, min/max

Hi all, I am currently investigating the possibilities of Cassandra for my company, I have played around with Hector and Cassandra for a month now, and I have a few questions to ask (in a separate mail for each topic). So here are my first questions: 1) I found the CounterColumns to be a very

Re: Composite keys question

I'm not much advanced in cassandra, but seeing the pycassa doc http://pycassa.github.com/pycassa/assorted/composite_types.html, for composites you can't even search for the second term, you need a first term, the second will filter, you just do range slices on the composite columns it's totally

Re: Composite keys question

Thanks for your response, Cyril. Yeah, I realized shortly after asking that indeed the second term is not being indexed, so it must be doing a table scan. Indexing for composite columns is in the works ( https://issues.apache.org/jira/browse/CASSANDRA-3680), but not sure how soon that will be

Re: CounterColumns with double, min/max

On 1, countandra.org. On 2, the issue is a little more deep (we have investigated this at countandra). To approach it a little more comprehensively, the issue has more to do with events rather than counts (at least in IMO). A similar issue is about averages... countandra does sums and counts

Re: nodetool repair taking forever

Thanks for the reply Aaron. By compaction being on, do you mean if run nodetool compact, then the answer is no. I haven't set any explicit compaction_thresholds which means it should be using the default, min 4 and max 32. Having said that to solve the problem, I just did a full cluster restart

Re: nodetool repair taking forever

On Sat, May 19, 2012 at 8:14 AM, Raj N raj.cassan...@gmail.com wrote: Hi experts, [ repair seems to be hanging forever ] https://issues.apache.org/jira/browse/CASSANDRA-2433 Affects 0.8.4. I also believe there is a contemporaneous bug (reported by Stu Hood?) regarding failed repair resulting

Re: NetworkTopologyStrategy with 1 node

replication_factor = 1 and strategy_options = [{DC1:0}] You should not be setting both of these. All you should need is: strategy_options = [{DC1:1}] On Fri, May 25, 2012 at 1:47 PM, Cyril Auburtin cyril.aubur...@gmail.com wrote: I was using a single node, on cassandra 0.7.10 with Network