Nate you are right in that it is a function of logical separation helps for
some reason.
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 20 Jun 2014, at 8:17 am, Nate McCall n...@thelastpickle.com wrote:
Sorry - should have been clear I was speaking
Yes your thinking is correct.
This article from TLP sums it all up beautifully
http://thelastpickle.com/blog/2011/06/13/Down-For-Me.html
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 18 Jun 2014, at 4:18 pm, Prabath Abeysekara prabathabeysek...@gmail.com
.
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 18 Jun 2014, at 7:18 pm, Daniel Chia danc...@coursera.org wrote:
While they guarantee IOPS, they don't really make any guarantees about
latency. Since EBS goes over the network, there's so many things
Cassandra in a VPC solution, but
we haven’t ever used it in a production environment or with a heavy load, so
caveat emptor.
As for the snitch… the GPFS is definitely the most flexible.
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 10 Jun 2014, at 1:42 am
Java ssl sockets need to be able to build a chain of trust. So having
either a nodes public cert or the root cert in the truststore works (as you
found out).
To get cassandra to use cypher suites 128 bit you will need to install
the JCE unlimited strength jurisdiction policy files. You will know
-in-cassandra
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 30 May 2014, at 8:40 am, Tupshin Harper tups...@tupshin.com wrote:
When one node or DC is down, coordinator nodes being written through will
notice this fact and store hints (hinted handoff
nonetheless.
Datastax OpsCenter also provides capacity planning and forecasting and can
provide an easy set of metrics you can make your scaling decisions on.
http://www.datastax.com/what-we-offer/products-services/datastax-opscenter
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr
Also once you've got your phi_convict_threshold sorted, if you see these again
check:
http://status.aws.amazon.com/
AWS does occasionally have the odd increased latency issue / outage.
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 19/05/2014, at 1:15 PM
make range queries slower (the query has more files to visit). See
http://stackoverflow.com/questions/8917882/cassandra-sstables-and-compaction (a
little old but still relevant). Compaction also fixes up things like merging
row fragments (when you write new columns to the same row).
Ben Bromhead
the public IPs.
If you run in a VPC without public addressing and want to connect from external
hosts you will want to look at a VPN
(http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_VPN.html).
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 13/05/2014
will be the way to go
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPN_CloudHub.html.
Additionally to access your Cassandra instances from your other VPCs you can
use VPC peering (within the same region). See
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/vpc-peering.html
Ben
Some imbalance is expected and considered normal:
See http://wiki.apache.org/cassandra/VirtualNodes/Balance
As well as
https://issues.apache.org/jira/browse/CASSANDRA-7032
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 29 Apr 2014, at 7:30 am, DuyHai Doan
/apidocs/com/datastax/driver/core/policies/LoadBalancingPolicy.html
… and set the distance based on which zone the node is in.
An alternate method would be to define the zones as data centres and then you
could leverage existing DC aware policies (We've never tried this though).
Ben Bromhead
in
production (after all the warnings), run most of your cluster on linux, then
run a single node or a separate DC with SmartOS, Solaris, BeOS, OS/2, Minix,
Windows 3.1 or whatever it is that you choose and let us know how it all goes!
Cheers
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr
to define its dc / rack and it will
use gossip to discover this information about other nodes.
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 10 Dec 2013, at 5:31 am, Marcelo Elias Del Valle marc...@s1mbi0se.com.br
wrote:
Hello everyone,
I have
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 14/08/2013, at 10:42 AM, Jon Haddad j...@jonhaddad.com wrote:
I strongly recommend against EBS, even with optimized ebs provisioned. The
throughput you'll get from local drives is significantly better than what
(SmartOS is based on Solaris).
Just make sure you test and benchmark all your options, a few days of testing
now will save you weeks of pain.
Good luck!
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr
On 05/08/2013, at 12:34 AM, David Schairer dschai...@humbaba.net wrote:
Of course
On ubuntu it is: apt-get install cassandra=1.2.4
So should be similar for debian
Ben Bromhead
Instaclustr | www.instaclustr.com | @instaclustr | +61 415 936 359
On 05/07/2013, at 10:59 PM, Kais Ahmed k...@neteck-fr.com wrote:
Hi ben,
You can get it from http://archive.apache.org/dist
Depending on your client, disable automatic client discovery and just specify a
list of all your nodes in your client configuration.
For more details check out
http://xzheng.net/blogs/problem-when-connecting-to-cassandra-with-ruby/ ,
obviously this deals specifically with a ruby client but it
Check out
http://techblog.netflix.com/2012/07/benchmarking-high-performance-io-with.html
Netflix used Cassandra with SSDs and were able to drop their memcache layer.
Mind you they were not using it purely as an in memory KV store.
Ben
Instaclustr | www.instaclustr.com | @instaclustr
On
), I am
guessing priam use the data backed up to S3 to restore a node data in another
instance, right?
[]s
2013/2/28 Ben Bromhead b...@relational.io
Off the top of my head I would check to make sure the Autoscaling Group you
created is restricted to a single Availability Zone, also
why? It's probably what is causing cassandra to die, right?
2013/2/27 Marcelo Elias Del Valle mvall...@gmail.com
Hello Ben, Thanks for the willingness to help,
2013/2/27 Ben Bromhead b...@instaclustr.com
Have your added the priam java agent to cassandras JVM argurments (e.g.
-javaagent
Hi Marcelo
A few questions:
Have your added the priam java agent to cassandras JVM argurments (e.g.
-javaagent:$CASS_HOME/lib/priam-cass-extensions-1.1.15.jar) and does the
web container running priam have permissions to write to the cassandra
config directory? Also what do the priam logs say?
Instaclustr out.
Cheers
Ben Bromhead
*Instaclustr*
On Fri, Jan 25, 2013 at 12:35 AM, Tim Dunphy bluethu...@gmail.com wrote:
Cool Thanks for the advice Aaron. I actually did get this working before I
read your reply. The trick apparently for me was to use the IP for the
first node in the seeds
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