How can I get Cassandra to automatically rebalance?

Neo Rebalance!
September 19, 2010 01:58:50 AM
Yo, I've finally uploaded a working version of the rebalance implementation I've been thinking about for forever. It's inteface is very raw, and I'd like to hear feedback about ways to make it easier to use. I'll be filling in a wiki page with…

Rebalance stuck?
September 8, 2010 05:46:17 AM
Hi, I have a problem with enable_rebalance. It seems that after a while it stopped working. Now i read in Store.pm about List::Util::shuffle() not being really random, is this still true? I've also setup a test environment to analyse the…

Re: Does anyone actively use rebalance?
July 31, 2010 03:33:06 AM
Rebalance has been immensely useful to us. When adding new storage nodes, we are able to mitigate the damage from HD failures, are able to add nodes more sparingly, and just generally balances out load across storage nodes. ( 12 storage nodes, 6…

Rebalance.pm patch
October 28, 2010 05:39:20 AM
Hi, I'm finally trying the new Rebalance stuff and stubbled upon an error when using a global limit. When the JobMaster tries to load the saved rebal_state, Rebalance.pm croaks because it doesn't recognize the saved setting 'limit'. bye, Martijn.…

Rebalance docs, Roadmap, etc
September 19, 2010 07:51:34 PM
First off, I have posted initial documentation for the unreleased rebalance overhaul: http://code.google.com/p/mogilefs/wiki/Rebalance Next, I have posted a quick Roadmap of all the major features I've been planning on working on: …

Re: source socket, rebalance issues
August 23, 2010 06:28:41 PM
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 8/23/10 12:24 PM, dormando wrote: >> It looks like the maxconns default is 10K and I don't set it explicitly. >> I assume that is connections that would show up in netstat? I'm seeing…

source socket, rebalance issues
August 19, 2010 02:18:34 PM
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'm running mogilefs 2.30 with 14 hosts with 4 devices each. When I !watch on one of my trackers, I see lots (several to many a minute) of messages like these: :: [replicate(9979)] Unable to create…

How can the cassandra token of a key be determined from the cassandra client side?
September 24, 2010 01:08:03 PM
This is a multi-part message in MIME format. This question relates to a C++ client application, to direct the Cassandra request to the correct Cassandra node based on token form of the key. Would the following work? If the token form of the key…

Re: How can the cassandra token of a key be determined from the cassandra client side?
September 24, 2010 01:19:06 PM
Take a look at your particular implementation of org.apache.cassandra.dht.IPartitioner: each partitioner: creates tokens in a different way, but all of them are straightforward. ----- Reply message ----- From: "Dwight Smith"…

Automatically Add Session ID
September 23, 2010 02:04:38 PM
Hello, I have a stateless webservice that I am running with Tomcat 6.0. The product owners want to start tracking user sessions to the webservice (how many request per session, etc.). Since its been stateless up to this point, I am not using the…

fauna/cassandra gem does not work with Cassandra 0.7
December 7, 2010 04:22:02 AM
Hi, I pull out fauna/cassandra gem 0.10.0 from github. I then tried to get a value from cassandra as such. irb(main):002:0> require 'cassandra/0.7' => true irb(main):003:0> client = Cassandra.new('Keyspace1', '127.0.0.1:9160') =>…

znode recovery automatically?
October 21, 2010 11:09:11 AM
Can a lost znode be recovered automatically? Say, in a 3 znodes Zookeeper cluster, the cluster get into a critical status if a znode is lost. If I bring that lost znode back into running, can it rejoin the quorum? If it can, then that means my…

How to automatically undeploy a context
December 19, 2010 05:14:31 AM
Hi folks, I'd like to know how I could trigger an automatic undeploy of a context after it has been fully loaded. The thing is that I'd be able to deploy some code whenever I want (in order to cleanup my database, clear the caches, etc), and be…

Regionserver not shutting down automatically
November 8, 2010 05:04:59 AM
Hi, I have seen that the *stop-hbase.sh* script does not execute*hbase-daemons.sh stop regionservers *, although it does stop the master and zookeeper. Is this intentional? Why is it? Won't it create any problems if I forget to stop all…

Re: How to automatically undeploy a context
December 19, 2010 06:58:00 AM
Alexandre FILLATRE schrieb am 19.12.2010 um 12:13 (+0100): > > The thing is that I'd be able to deploy some code whenever I want (in > order to cleanup my database, clear the caches, etc) Have you considered using cronjobs, or a context…

Why the transaction committed automatically?I don't want it!
December 9, 2010 03:03:19 AM
Hello,every one: I am using MyBatis3.0.2.I found the transaction committed automatically when an exception was thrown out.I tried to insert some data into several tables but the last one insert statement failed because the following error:…

Updated: (CLI-113) Generate an Ant task automatically from CLI
June 15, 2010 02:25:24 PM
[ https://issues.apache.org/jira/browse/CLI-113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Emmanuel Bourg updated CLI-113:

Automatically generate legal files
November 3, 2010 11:02:14 PM
Hi I finally tried to finalize the update of our parent POM to use the functionality provided by the Apache parent POM 7. See my last comment [2] on FELIX-1747 [1] and the attached patch [3]. To use this POM, projects will have to implement a few…

Running a script where a value increments automatically
October 1, 2010 08:20:52 AM
I have created a basic plan where I access our website using a particular user who then makes a payment from 1 person to another. However what I would like to do is get that same user to create lots of payments (over 100) but all these payments…

created a new repository, it's automatically secured?
June 4, 2010 02:05:35 PM
Hi, I've been using archiva for a while now as a proxy as well as a manager for 3rd party dependencies that aren't public. Up until now, I haven't had to ever create a new repository, I had just been dropping in these JARs and what not into the…