why read operation use so much of memory?

2010-04-18 Thread Bingbing Liu
Hi,all I have a cluster of 5 nodes, each node has a 4 cores cpu and 8 G Memory. I use the 0.6-beta3 cassandra for testting. First , i insert 6,000,000 rows each of which is 1k bytes, the speed of write is so excited. But then ,when i read them each row at a time from two clients at the same ti

[VOTE RESULTS] was: [VOTE] Release 0.6.1

2010-04-18 Thread Eric Evans
On Thu, 2010-04-15 at 09:01 -0500, Eric Evans wrote: > We sat on 0.6.0 for a bit longer than usual in order to coordinate > with the press team, and in the meantime accumulated some important > bug fixes in the 0.6 branch. I propose we move forward with an > 0.6.1 now, and get these changes[1] out

Re: need help regarding Cassandra Setup in eclipse

2010-04-18 Thread j p
Thanks!!! it worked... On Sun, Apr 18, 2010 at 1:40 PM, Roger Schildmeijer wrote: > > On 18 apr 2010, at 09.53fm, j p wrote: > > > I am a newbie in this domain so please can u describe the required steps. > > 1, start jconsole (or some other JMX client, > http://java-source.net/open-source/jmx) >

Re: need help regarding Cassandra Setup in eclipse

2010-04-18 Thread Roger Schildmeijer
On 18 apr 2010, at 09.53fm, j p wrote: > I am a newbie in this domain so please can u describe the required steps. 1, start jconsole (or some other JMX client, http://java-source.net/open-source/jmx) 2, connect to your running CassandraDeamon 3, navigate to the MBeans tab 4, expand org.apache.c

Re: Can not start cassandra in local correctly

2010-04-18 Thread Roger Schildmeijer
On 18 apr 2010, at 09.46fm, Jeff Zhang wrote: > Hi all, > > When I use the cassandra trunk, keyspace defined in cassandra.xml can not > been initialized, only two tables "system" and "definitions" is initialized. > I look at the code , find that some migration work is done in trunk. Is > there a

Re: need help regarding Cassandra Setup in eclipse

2010-04-18 Thread j p
I am a newbie in this domain so please can u describe the required steps. thanks in advance. BR jp On Sun, Apr 18, 2010 at 2:56 AM, Jonathan Ellis wrote: > http://wiki.apache.org/cassandra/LiveSchemaUpdates > > On Sat, Apr 17, 2010 at 4:51 PM, bilal ahmed > wrote: > > gr8 its configured and

Can not start cassandra in local correctly

2010-04-18 Thread Jeff Zhang
Hi all, When I use the cassandra trunk, keyspace defined in cassandra.xml can not been initialized, only two tables "system" and "definitions" is initialized. I look at the code , find that some migration work is done in trunk. Is there anyway I can run it correctly ? or is it a bug ? -- Best Re