Adding New Node to an Existing Cluster

2012-12-17 Thread Adeel Akbar
Hi, I am using Cassandra Cluster 1.1.4 with two nodes alongwith REPLICA factor 2. I have added one new node in my existing Cassandra Cluster with instruction provided on http://www.datastax.com/docs/1.1/operations/cluster_management. Now Its only showing 285 MB data instead of 250GB +.

Re: multiget_slice SlicePredicate

2012-12-17 Thread Jason Wee
if you have rows like 10k and get 100 column per row, this gonna choke the cluster...been there. if you really still have to use multiget_slice, try slice your data before calling multiget_slice and check if your cluster read request pending increase... try to slow down the client sending request

[RELEASE CANDIDATE] Apache Cassandra 1.2.0-rc1 released

2012-12-17 Thread Sylvain Lebresne
The Cassandra team is pleased to announce the first release candidate for the future Apache Cassandra 1.2.0. Let me first stress that this is not the final release yet and as such is *not* ready for production use. This release is getting very close to a final version but may still contain bugs.

Re: Adding New Node to an Existing Cluster

2012-12-17 Thread Tomas Nunez
These tokens don't seem balanced at all. You should use nodetool move to move those tokens to some balanced values, for instance: C: 0 B: 56713727820156407428984779325531226112 A: 113427455640312814857969558651062452224 2012/12/17 Adeel Akbar adeel.ak...@panasiangroup.com Hi, I am using

Re: Read operations resulting in a write?

2012-12-17 Thread Mike
Thank you Aaron, this was very helpful. Could it be an issue that this optimization does not really take effect until the memtable with the hoisted data is flushed? In my simple example below, the same row is updated and multiple selects of the same row will result in multiple writes to the

Re: State of Cassandra and Java 7

2012-12-17 Thread Brian Tarbox
I was using jre-7u9-linux-x64 which was the latest at the time. I'll confess that I did not file any bugs...at the time the advice from both the Cassandra and Zookeeper lists was to stay away from Java 7 (and my boss had had enough of my reporting that *the problem was Java 7* for me to spend a

Data Model Review

2012-12-17 Thread Adam Venturella
My use case is capturing some information about Instagram photos from the API. I have 2 use cases. One, I need to capture all of the media data for an account and two I need to be able to privately annotate that data. There is some nuance in this, multiple http queries for example, but ignoring

Re: Adding New Node to an Existing Cluster

2012-12-17 Thread aaron morton
Use nodetool move and change the tokens one at a time to the values suggested by Tomas. for background http://www.datastax.com/docs/1.1/references/nodetool#nodetool-move Each move will take some time, you will see the node state change from UP to MOVING in the output from nodetool ring. When

Re: Read operations resulting in a write?

2012-12-17 Thread aaron morton
Could it be an issue that this optimization does not really take effect until the memtable with the hoisted data is flushed? No. The read path in collectTimeOrderedData() reads from the memtable first. It then reads the SStable meta data (maxTimestamp) and checks if the candidate columns are

Re: Read operations resulting in a write?

2012-12-17 Thread Edward Capriolo
Is there a way to turn this on and off through configuration? I am not necessarily sure I would want this feature. Also it is confusing if these writes show up in JMX and look like user generated write operations. On Mon, Dec 17, 2012 at 10:01 AM, Mike mthero...@yahoo.com wrote: Thank you