load balance issue

Hi there, I had a 3 nodes ring, added a 4th one, and moved others to appropriate tokens..doing nodetool ring shows: 127.0.0.1 datacenter1 rack1 Up Normal 348.82 MB 25.00% 0 127.0.0.2 datacenter1 rack1 Up Normal 349.81 MB 25.00% 42535295865117307932921825928971

Re: commodity server spec

Then what will be the sweetspot for Cassandra? I am more interested in Cassandra because my application is write heavy. Till now what I have understood is that Cassandra will not work best for SANs too? P.S Mongodb is also a nosql database and designed for horizontal scaling then how its good

Re: Limiting ColumnSlice range in second composite value

It seems that you did not set the AbstractComposite.ComponentEquality.GREATER_THAN_EQUAL to the endComp. You could try something like: endComp=new Compsite() ; endComp.addComponent(timeUUID) ; endComp.addComponent("ACTIVE", StringSerializer.get(), "UTF8Type", AbstractComposite.ComponentEquality.GR

what did actually happen?

Hi: I created a new super column family and insert 1000 super columns into it in a short time. Cassandra 0.8 was running on my laptop. When inserting, the system was continuing flushing to files and compaction. I use the default configuration. I just can't figure out why the size of data file i

Debug & Timeout

Hi I've already set Long rpc_timeout_in_ms = Long.MAX_VALUE; How can i avoid time out exception, when debugging the cassandra server. Best Regards! Yi Wang(Jenny)

Re: Not all data structures need timestamps (and don't require wasted memory).

Kevin, You will find that many of us using cassanda are already doing what you suggest (custom serializer/deserializer). We call it JSON. -- Colin *Sent from Star Trek like flat panel device, which although larger than my Star Trek like communicator device, may have typo's and exhibit imprope

cassandra 0.8.4 + pig (using cloudera rpms)

I've had some troubles, so I thought I'd pass on my various bug fixes: -Cass 0.8.4 has troubles with pig/hadoop (you get NPE's when trying to connect to cassandra in the pig logs). You need this patch: http://svn.apache.org/viewvc?revision=1158940&view=revision And maybe this: http://svn.apache.

Re: Unable to link C library (for jna.jar) on 0.7.5

Thank you guys. I installed jna using yum and then put jna.jar on the classpath and everything seems fine. On Thu, Sep 1, 2011 at 9:51 AM, Eric Evans wrote: > On Thu, Sep 1, 2011 at 10:13 AM, Eric Czech wrote: > > I got it here : https://nodeload.github.com/twall/jna/tarball/master > > Is the

about partitioner in cluster

Hi, I am new to Cassandra. I have some questions about the cluster partitioner. It looks like once I set the partitioner, there is no way to change it later. However, in our application, some keyspaces need to be sorted based on key, some don't. Is there a flexible way to define a cluster to con

Re: cassandra 0.8.4 + pig (using cloudera rpms)

Thanks William - so you were able to get everything running correctly, right? FWIW, we're in the process of upgrading to 0.8.4 and found that all we needed was that first link you mentioned - the VersionedValue modification. It's running fine on our staging cluster and we're in the process of m

Why no need to query all nodes on secondary index lookup?

Hi, (This is the 2nd time I'm sending this message. I sent it the first time a few days ago but it does not appear in the archives.) I have a follow up question on a question from February 2011. In short, I wonder why one won't have to query all Cassandra nodes when doing a secondary index lookup