Hi Everyone,
I have a cluster using NetworkTopologyStrategy that looks like this:
10.41.116.22 DC1 RAC1 Up Normal 13.21 GB10.00%
0
10.54.149.202 DC2 RAC1 Up Normal 6.98 GB
0.00% 1
10.41.116.20 DC1 RAC2 Up
Hi!
I have a 3 node cassandra cluster.
I use Hector API.
I give hecotr one of the node's IP address
I call setAutoDiscoverHosts(true) and setRunAutoDiscoveryAtStartup(true).
The describe on one node returns:
Replication Strategy: org.apache.cassandra.locator.SimpleStrategy
Durable Writes:
If your replication factor is set to one, your cluster is obviously in a bad
state following any node failure. At best, I think it would make sense that
about a third of your operations fail, but I'm not sure why all of them would.
I don't know if Hector just refuses to work with a
More detail…
I'm running 1.0.7 on these boxes, and the keyspace readout from the CLI looks
like this:
create keyspace Users
with placement_strategy = 'NetworkTopologyStrategy'
and strategy_options = {DC2 : 1, DC1 : 2}
and durable_writes = true;
Thanks!
Caleb Rackliffe | Software
Hi!
Thanks for the prompt answer,
That is true, I intend to have it at two.
What you say, is that if I change that, then even when the node is down, my
application will be able to read\write from the other node where the data
is replicated?
Forgot to mention that I have
Because your RF is 1, so you need all nodes up.
maki
On 2012/03/18, at 16:15, Tamar Fraenkel ta...@tok-media.com wrote:
Hi!
I have a 3 node cassandra cluster.
I use Hector API.
I give hecotr one of the node's IP address
I call setAutoDiscoverHosts(true) and
Thanks!
I updated replication factor to 2, and now when I took one node down all
continued running (I did see Hector complaining on the node being down),
but things were saved to db and read from it.
Just so I understand, now, having replication factor of 2, if I have 2 out
of 3 nodes running all
Hi All,
Getting the following parse error when trying to create a CF with a secondary
index using the bytestype attribute, the index is for a column called 'subject':
java.lang.RuntimeException: org.apache.cassandra.db.marshal.MarshalException:
cannot parse 'subject' as hex bytes
Im doing
Hi me again - sorry i've just read that bytestype will expect hex input so my
question now is how to create a column that will accept non-validated text as
as input? I think I can maybe get round this by forcing UTF8Encoding
regardless if the string is already identified as UTF8 or not
Hi All,
With twitter, when I search for words like: cassandra is the bestest, 4
tweets will appear, including one i just did. My understand that the
internals of twitter work in that each word in a tweet is allocated,
irrespective of the presence of a # hash tag, and the tweet id is assigned
The simpliest modeling you could have is using the keyword as key, a
timestamp/time UUID as column name and the tweetid as value
- cf['keyword']['timestamp'] = tweetid
then you do a range query to get all tweetid sorted by time (you may
want them in reverse order) and you can limit to the number
yes -- but given i have two keywords, and want to find all tweets that have
cassandra and bestest ... means, retrieving all columns + values in
each row, iterating through both to see if tweet id's in one, exist in the
other and finishing up with a consolidated list of tweet id's that only
exist
That sounds right to me :)
Caleb Rackliffe | Software Developer
M 949.981.0159 | ca...@steelhouse.com
[cid:8E620335-844B-4EFF-ACAB-3D4439A3B4B6]
From: Tamar Fraenkel ta...@tok-media.commailto:ta...@tok-media.com
Reply-To: user@cassandra.apache.orgmailto:user@cassandra.apache.org
http://blip.tv/datastax/getting-to-know-the-cassandra-codebase-4034648
2012/3/18 Tharindu Mathew mcclou...@gmail.com:
Hi,
It seems that [1] is broken. Wonder if it exists somewhere else?
[1] -
http://www.channels.com/episodes/show/11765800/Getting-to-know-the-Cassandra-Codebase
--
Appreciate the quick reply. Thanks.
On Mon, Mar 19, 2012 at 12:20 AM, Benoit Perroud ben...@noisette.ch wrote:
http://blip.tv/datastax/getting-to-know-the-cassandra-codebase-4034648
2012/3/18 Tharindu Mathew mcclou...@gmail.com:
Hi,
It seems that [1] is broken. Wonder if it exists
Yes, read and write won't fail with single node failure.
But your read may return old data.
maki
On 2012/03/19, at 1:08, Caleb Rackliffe ca...@steelhouse.com wrote:
That sounds right to me :)
Caleb Rackliffe | Software Developer
M 949.981.0159 | ca...@steelhouse.com
Why you suppose they did search on Cassandra?
On 19 March 2012 00:16, Sasha Dolgy sdo...@gmail.com wrote:
yes -- but given i have two keywords, and want to find all tweets that
have cassandra and bestest ... means, retrieving all columns + values
in each row, iterating through both to see if
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