Re: Cassandra 1.0.0 - Node Load Bug

2011-10-24 Thread Henrik Schröder
We're also seeing something similar since upgrading to 1.0.0. We have a 6-node cluster with replication factor of 3, but three of the nodes are older running 32-bit Windows Server 2008, and three of the nodes are newer and running 64-bit Windows Server 2008 R2, and we're running 32-bit java on the

Re: Using elasticsearch on cassandra nodes

2011-10-24 Thread Mike Peters
Brian, We've taken the same approach, with ElasticSearch running on the same nodes as Cassandra. Make sure you have enough memory on your nodes, because ElasticSearch and Cassandra both love memory. We started with 12gb of memory, allocating ElasticSearch and Cassandra 5gb each and it wasn

1.0 compaction exceptions

2011-10-24 Thread Terry Cumaranatunge
Hello, I'm seeng the following exception during compaction. This is happening on Linux (RHEL 6) running Cassandra 1.0. This particular instance is with Leveled compaction, but we have seen this error in the past with SizeTiered compaction as well. We are not using compression. Any ideas on what m

Updates Question

2011-10-24 Thread Sam Hodgson
Hi, Im currently experimenting with Cassandra on a single node using phpcassa and im having issues when trying to update data in existing columns. I can write new columns/rows etc no problem however when updating I get no errors back and the update does not occur. I've also tried updating ma

Re: Updates Question

2011-10-24 Thread Tyler Hobbs
It sounds like you're looking at different rows in the CLI compared to phpcassa and Cassandra Cluster Admin. My guess is that this is due to the CLI using a hex encoding by default: http://stackoverflow.com/questions/4662940/cassandra-cli-returning-weird-code On Mon, Oct 24, 2011 at 7:23 AM, Sam

ConcurrentModificationException during nodetool repair

2011-10-24 Thread Scott Fines
Hello all, Right now, I have 10 machines running Cassandra 0.8.7, and mostly they are working fine. However, during a nodetool repair of one machine, I'm seeing: ERROR [AntiEntropySessions:12] 2011-10-24 11:17:52,154 AbstractCassandraDaemon.java (line 139) Fatal exception in thread Thread[Anti

TotalDiskSpaceUsed and LiveDiskSpaceUsed

2011-10-24 Thread Rene Kochen
What is the difference between these JMX column family attributes: TotalDiskSpaceUsed and LiveDiskSpaceUsed Thanks! Rene

Re: ConcurrentModificationException during nodetool repair

2011-10-24 Thread Sylvain Lebresne
On Mon, Oct 24, 2011 at 6:23 PM, Scott Fines wrote: > Hello all, > Right now, I have 10 machines running Cassandra 0.8.7, and mostly they are > working fine. However, during a nodetool repair of one machine, I'm seeing: > ERROR [AntiEntropySessions:12] 2011-10-24 11:17:52,154 > AbstractCassandraDa

RE: ConcurrentModificationException during nodetool repair

2011-10-24 Thread Scott Fines
Created https://issues.apache.org/jira/browse/CASSANDRA-3400 Thanks for your help, Scott Fines From: Sylvain Lebresne [sylv...@datastax.com] Sent: Monday, October 24, 2011 11:37 AM To: user@cassandra.apache.org Subject: Re: ConcurrentModificationException

Changing the replication factor of a keyspace

2011-10-24 Thread Konstantin Naryshkin
We are setting up my application around Cassandra .8.0 (will move to Cassandra 1.0 in the near future). In production the application will be running in a two (or more) node cluster with RF 2. In development, we do not always have 2 machines to test on, so we may have to run a Cassandra cluster con

Re: TotalDiskSpaceUsed and LiveDiskSpaceUsed

2011-10-24 Thread Sylvain Lebresne
On Mon, Oct 24, 2011 at 6:26 PM, Rene Kochen wrote: > What is the difference between these JMX column family attributes: > > > > TotalDiskSpaceUsed  and LiveDiskSpaceUsed Prior to Cassandra 1.0, obsolete data files (compacted ones) were not deleted right away, but potentially quite some times aft

Re: Updates Question

2011-10-24 Thread Erik Forkalsrud
On 10/24/2011 05:23 AM, Sam Hodgson wrote: I can write new columns/rows etc no problem however when updating I get no errors back and the update does not occur. I've also tried updating manually using the Cassandra cluster admin gui and the same thing happens. I can write but updates do not wo

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2011-10-24 Thread Ernst D Schoen-René
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2011-10-24 Thread Dave Brosius
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Re: simple get_slice() gives error?

2011-10-24 Thread Yang
I currently use buf.getLong(0), assuming the current position is 0. (instead of using buf.getLong(buf.getPosition()) ) my code seems to be working fine. - I even added just now a check to throw an exception if the position is not 0. but I think I have seen cases where the position is no zero

cassandra-1.0.0 schema-sample.txt problems

2011-10-24 Thread Maki Watanabe
Hello, I'm writing CassandraCli wiki page draft (sorry to late, aaron), and found 2 problems in schema-sample.txt shipped with 1.0.0 release. cassandra-cli prints following warning and error on loading the schema. WARNING: [{}] strategy_options syntax is deprecated, please use {} a0f41dc0-feba-11

Re: Changing the replication factor of a keyspace

2011-10-24 Thread Maki Watanabe
Konstantin, You can modify the RF of the keyspace with following command in cassandra-cli: update keyspace KEYSPACE_NAME with storage_options = {replication_factor:N}; When you decrease RF, you need to run nodetool clean on each node. When you increase RF, you need to run nodetool repair on ea

schema-sample.txt issues in Cassandra-1.0.0

2011-10-24 Thread Maki Watanabe
Hello, I'm writing CassandraCli wiki page draft (sorry to late, aaron), and found 2 problems in schema-sample.txt shipped with 1.0.0 release. cassandra-cli prints following warning and error on loading the schema. WARNING: [{}] strategy_options syntax is deprecated, please use {} a0f41dc0-feba-11