Facebook Messaging – HBase Comes of
Agehttp://facility9.com/2010/11/18/facebook-messaging-hbase-comes-of-age
http://facility9.com/2010/11/18/facebook-messaging-hbase-comes-of-age
2010/11/21 David Boxenhorn da...@lookin2.com
Eventual consistency is not good enough for instant messaging.
On
On Sun, Nov 21, 2010 at 12:10 PM, André Fiedler
fiedler.an...@googlemail.com wrote:
Facebook Messaging – HBase Comes of Age
http://facility9.com/2010/11/18/facebook-messaging-hbase-comes-of-age
2010/11/21 David Boxenhorn da...@lookin2.com
Eventual consistency is not good enough for instant
(I'm new here so forgive any mistakes or mis-presumptions...)
I've set up a cassandra-0.7.0-beta3 and populated it with
thrift-serialised objects via a scribe server. This seems a great way to
get thrift beans out of the application asap and have then sitting in
cassandra for later processing.
I
I've been using "Tunable Consistency" when explaining Cassandra to people as well. I've also started pointing out the different Consistency models of the standard Transaction Isolation Levels of an ACID compliant DB, as well as "eventually consistent" async replication like MYSQL / Couch DBI've
On Sun, 2010-11-21 at 11:32 -0500, Simon Reavely wrote:
As a cassandra user I think the key sentence for this community is:
We found Cassandra's eventual consistency model to be a difficult
pattern to reconcile for our new Messages infrastructure.
In my experience, we needed strong
+1 Ed
On Nov 21, 2010, at 12:13 PM, Edward Capriolo edlinuxg...@gmail.com wrote:
On Sun, Nov 21, 2010 at 12:10 PM, André Fiedler
fiedler.an...@googlemail.com wrote:
Facebook Messaging – HBase Comes of Age
http://facility9.com/2010/11/18/facebook-messaging-hbase-comes-of-age
Also I believe saying HBASE is consistent is not true. This can happen:
Write to region server. - Region Server acknowledges client- write
to WAL - region server fails = write lost
I wonder how facebook will reconcile that. :)
Are you sure about that? Client writes to WAL before ack user?
On Sun, Nov 21, 2010 at 2:06 PM, Edward Ribeiro edward.ribe...@gmail.comwrote:
Also I believe saying HBASE is consistent is not true. This can happen:
Write to region server. - Region Server acknowledges client- write
to WAL - region server fails = write lost
I wonder how facebook will
I don't know the details of operation of HBase, so I can't speak on that
point. But, I do know that Facebook hired Jonathan Grey, former CTO of
Streamy, who is a huge HBase contributor. Streamy ended in Mar 2010 -
although I'm not sure when he went to work for Facebook.
He presented on HBase at
On Sun, Nov 21, 2010 at 6:16 PM, Todd Lipcon t...@lipcon.org wrote:
[only jumping in because info was requested - those who know me know that I
think Cassandra is a very interesting architecture and a better fit for many
applications than HBase]
Hey Todd! Good to see you de-lurk!
In the
On Sun, Nov 21, 2010 at 6:25 PM, Jonathan Ellis jbel...@gmail.com wrote:
On Sun, Nov 21, 2010 at 6:16 PM, Todd Lipcon t...@lipcon.org wrote:
[only jumping in because info was requested - those who know me know that
I
think Cassandra is a very interesting architecture and a better fit for
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