Multiple data center nodetool ring output display 0% owns

2012-02-12 Thread Roshan
Hi I have deployed Cassandra 1.0.6 to a 2 data center and one data center (DC1) having one node and the other data center (DC2) having two nodes. But when I do a nodetool ring using one IP, the output says 0% owns of DC1 node. Please see the output below. # sh nodetool -h 10.XXX.XXX.XX ring

Re: Multiple data center nodetool ring output display 0% owns

2012-02-12 Thread David Schairer
There was a thread on this a couple days ago -- short answer, the 'owns %' column is effectively incorrect when you're using multiple DCs. If you had all 3 servers in 1 DC, since server YYY has token 1 and server XXX has token 0, then server XXX would truly 'own' 0% (actually, 1/(2^128) :) ),

Re: Multiple data center nodetool ring output display 0% owns

2012-02-12 Thread Peter Schuller
There was a thread on this a couple days ago -- short answer, the 'owns %' column is effectively incorrect when you're using multiple DCs.  If you had all 3 servers in 1 DC, since server YYY has token 1 and server XXX has token 0, then server XXX would truly 'own' 0% (actually, 1/(2^128) :)

Re: How to find a commit for specific release on git?

2012-02-12 Thread Dave Brosius
Based on the tags listed here: http://git-wip-us.apache.org/repos/asf?p=cassandra.git I would look here http://git-wip-us.apache.org/repos/asf?p=cassandra.git;a=commit;h=9d4c0d9a37c7d77a05607b85611c3abdaf75be94 On 02/12/2012 10:39 PM, Maki Watanabe wrote: Hello, How to find the right

Re: How to find a commit for specific release on git?

2012-02-12 Thread Maki Watanabe
I found I can get the info by git tag. I should better to learn git more to switch... 2012/2/13 Maki Watanabe watanabe.m...@gmail.com: Perfect! Thanks. 2012/2/13 Dave Brosius dbros...@mebigfatguy.com: Based on the tags listed here: http://git-wip-us.apache.org/repos/asf?p=cassandra.git I

Re: Unsubscribe

2012-02-12 Thread Dave Brosius
On 02/12/2012 10:53 PM, Shubham Srivastava wrote: -- Sent using BlackBerry send an email to user-unsubscr...@cassandra.apache.org

R: Re: How to find a commit for specific release on git?

2012-02-12 Thread giuseppe . zileni
unsubscribe Inviato dal mio smartphone BlackBerry® www.blackberry.com -Original Message- From: Maki Watanabe watanabe.m...@gmail.com Date: Mon, 13 Feb 2012 12:50:13 To: Dave Brosiusdbros...@mebigfatguy.com Reply-To: user@cassandra.apache.org Cc: user@cassandra.apache.org Subject: Re:

Re: How to find a commit for specific release on git?

2012-02-12 Thread Maki Watanabe
Updated http://wiki.apache.org/cassandra/HowToBuild . 2012/2/13 Maki Watanabe watanabe.m...@gmail.com: I found I can get the info by git tag. I should better to learn git more to switch... 2012/2/13 Maki Watanabe watanabe.m...@gmail.com: Perfect! Thanks. 2012/2/13 Dave Brosius

keycache persisted to disk ?

2012-02-12 Thread Franc Carter
Hi, I am testing Cassandra on Amazon and finding performance can vary fairly wildly. I'm leaning towards it being an artifact of the AWS I/O system but have one other possibility. Are keycaches persisted to disk and restored on a clean shutdown and restart ? cheers -- *Franc Carter* |

Re: keycache persisted to disk ?

2012-02-12 Thread zhangcheng
I think the keycaches and rowcahches are bothe persisted to disk when shutdown, and restored from disk when restart, then improve the performance. 2012-02-13 zhangcheng 发件人： Franc Carter 发送时间： 2012-02-13 13:53:56 收件人： user 抄送： 主题： keycache persisted to disk ? Hi, I am testing

Re: keycache persisted to disk ?

2012-02-12 Thread Franc Carter
On Mon, Feb 13, 2012 at 5:03 PM, zhangcheng zhangch...@jike.com wrote: ** I think the keycaches and rowcahches are bothe persisted to disk when shutdown, and restored from disk when restart, then improve the performance. Thanks - that would explain at least some of what I am seeing cheers