Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-20 Thread Aditya Gupta
@Tamar: Thanks a ton! works perfect now! On Mon, Feb 20, 2012 at 12:02 PM, Tamar Fraenkel ta...@tok-media.comwrote: On 19/02/2012 21:55, Aditya Gupta wrote: Is there anything to do with running cassandra on a VMware ubuntu instance !? I am trying Cassandra on VMware ubuntu server instance.

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-19 Thread Aditya Gupta
Is there anything to do with running cassandra on a VMware ubuntu instance !? I am trying Cassandra on VMware ubuntu server instance. On Sun, Feb 19, 2012 at 2:45 AM, Aditya Gupta ady...@gmail.com wrote: In my case, after installing cassandra, as soon as the server is started it hangs on it

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-19 Thread Tamar Fraenkel
On 19/02/2012 21:55, Aditya Gupta wrote: Is there anything to do with running cassandra on a VMware ubuntu instance !? I am trying Cassandra on VMware ubuntu server instance. I am doing that for the past couple of weeks both on VMWare player and on ESXi in development and it works fine. My

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Watanabe Maki
I haven't use the packaged kit, but Cassandra uses half of physical memory on your system by default. You need to edit cassandra-env.sh to decrease heap size. Update MAX_HEAP_SIZE and NEW_HEAP_SIZE and restart. From iPhone On 2012/02/18, at 20:40, Aditya Gupta ady...@gmail.com wrote: I just

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Aditya Gupta
Thanks! But what about the 100% cpu consumption that is causing the server to hang? On Sat, Feb 18, 2012 at 6:19 PM, Watanabe Maki watanabe.m...@gmail.comwrote: I haven't use the packaged kit, but Cassandra uses half of physical memory on your system by default. You need to edit

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Aditya Gupta
For clarification, I'm running Cassandra on a VMware ubuntu server instance. On Sat, Feb 18, 2012 at 6:44 PM, Aditya Gupta ady...@gmail.com wrote: Thanks! But what about the 100% cpu consumption that is causing the server to hang? On Sat, Feb 18, 2012 at 6:19 PM, Watanabe Maki

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread R. Verlangen
You might want to check your Cassandra logs, they contain important information that might lead you to the actual cause of the problems. 2012/2/18 Aditya Gupta ady...@gmail.com Thanks! But what about the 100% cpu consumption that is causing the server to hang? On Sat, Feb 18, 2012 at 6:19

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Bart Swedrowski
On 18 February 2012 13:14, Aditya Gupta ady...@gmail.com wrote: Thanks! But what about the 100% cpu consumption that is causing the server to hang? Do you have any application talking to that Cassandra, or is it just freshly installed Cassandra with no data at all?

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Aditya Gupta
No data at all. just a fresh installation On Sat, Feb 18, 2012 at 6:57 PM, R. Verlangen ro...@us2.nl wrote: You might want to check your Cassandra logs, they contain important information that might lead you to the actual cause of the problems. 2012/2/18 Aditya Gupta ady...@gmail.com

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Aditya Gupta
Am I installing it the right way ? While installing I didn't verify the signatures using public key. On Sat, Feb 18, 2012 at 8:21 PM, Aditya Gupta ady...@gmail.com wrote: No data at all. just a fresh installation On Sat, Feb 18, 2012 at 6:57 PM, R. Verlangen ro...@us2.nl wrote: You might

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Guy Incognito
perhaps entirely unrelated, but somebody was asking about lockups on EC2 yesterday and found: http://wiki.apache.org/cassandra/FAQ#ubuntu_hangs On 18/02/2012 14:58, Aditya Gupta wrote: Am I installing it the right way ? While installing I didn't verify the signatures using public key. On

Re: Newbie Question: Cassandra consuming 100% CPU on ubuntu server

2012-02-18 Thread Aditya Gupta
In my case, after installing cassandra, as soon as the server is started it hangs on it own (totally unresponsive). It had openJDK-6's jdk jre implementations. On Sat, Feb 18, 2012 at 10:30 PM, Guy Incognito dnd1...@gmail.com wrote: perhaps entirely unrelated, but somebody was asking about

Re: Newbie to cassandra

2010-07-18 Thread S Ahmed
read the wiki, read about nosql in general. download and install it, play with it. browse the source code. read the bigdata paper by google, dynamo by amazon. On Sun, Jul 18, 2010 at 2:46 PM, sonia gehlot sonia.geh...@gmail.comwrote: Hi everyone, I am new to Cassandra and wanted to try and

Re: Newbie to cassandra

2010-07-18 Thread Jonathan Ellis
Start with the recommended articles on http://wiki.apache.org/cassandra/ArticlesAndPresentations On Sun, Jul 18, 2010 at 1:46 PM, sonia gehlot sonia.geh...@gmail.com wrote: Hi everyone, I am new to Cassandra and wanted to try and start learning Cassandra. I have database background. I am fully

Re: Newbie to cassandra

2010-07-18 Thread Bill Hastings
Or perhaps this one. This is the Cassandra paper from the guys at FB. http://www.cs.cornell.edu/projects/ladis2009/program.htm#session3 On Sun, Jul 18, 2010 at 1:21 PM, Jonathan Ellis jbel...@gmail.com wrote: Start with the recommended articles on

Re: Newbie to cassandra

2010-07-18 Thread Jonathan Ellis
Which is bullet #4 on the list I linked. :) On Sun, Jul 18, 2010 at 5:31 PM, Bill Hastings bllhasti...@gmail.com wrote: Or perhaps this one. This is the Cassandra paper from the guys at FB. http://www.cs.cornell.edu/projects/ladis2009/program.htm#session3 On Sun, Jul 18, 2010 at 1:21 PM,

RE: Newbie to cassandra

2010-07-18 Thread Dwight Smith
Is there a link available for the Cassandra Summit in SF?? From: Eben Hewitt [mailto:eben.hew...@gmail.com] Sent: Sunday, July 18, 2010 5:02 PM To: user@cassandra.apache.org Subject: Re: Newbie to cassandra Hi Sonia If you're still interested after the reading and want something more

Re: Newbie to cassandra

2010-07-18 Thread Jonathan Ellis
in SF?? From: Eben Hewitt [mailto:eben.hew...@gmail.com] Sent: Sunday, July 18, 2010 5:02 PM To: user@cassandra.apache.org Subject: Re: Newbie to cassandra Hi Sonia If you're still interested after the reading and want something more hands-on, Eric Evans is doing a workshop at OSCON