I don't have grand visions of having fat clients connect directly to
Cassandra to read/write data. Too much risk in my opinion.
On Tue, Oct 25, 2011 at 4:50 PM, Edward Capriolo edlinuxg...@gmail.com wrote:
If you do not think restful API's are useful, try to make a fat client that
speaks a
Do you mind opening a bug report on
https://issues.apache.org/jira/browse/CASSANDRA?
--
Sylvain
On Thu, Oct 27, 2011 at 12:35 AM, Zhong Li z...@voxeo.com wrote:
Hi,
I am trying to upgrade our test servers to 1.0.0 from 0.8.5 and got
exceptions when restart.
INFO 22:25:37,727 Opening
is there such a thing? a query that runs against a SC family and
returns a subset of subcolumns from a set of super-columns?
is there a way to have eg a slice query (or super slice query) only
return the column names, rather than the value as well?
Hey folks, I am interested in what others have seen in regards to their
experience in the amount of depth and width (CF, Rows Columns) that they
can/do write per batch and simultaneously and what is the inflection point
where performance degrades. I have been expanding my use of counters and
am
Done. https://issues.apache.org/jira/browse/CASSANDRA-3407
On Oct 27, 2011, at 3:40 AM, Sylvain Lebresne wrote:
Do you mind opening a bug report on
https://issues.apache.org/jira/browse/CASSANDRA?
--
Sylvain
On Thu, Oct 27, 2011 at 12:35 AM, Zhong Li z...@voxeo.com wrote:
Hi,
I
I currently run a 2-node cluster with version cassandra 1.0 (stable). With
replication factor 2 on the keyspace which I'm testing. When I shutdown node
B, it's impossible to connect with thrift to node A.
The gossiper on node A says that node B is down.
My keyspace:
create keyspace Testing with
What's your bottleneck?
http://spyced.blogspot.com/2010/01/linux-performance-basics.html
On Thu, Oct 27, 2011 at 9:37 AM, Joe Stein crypt...@gmail.com wrote:
Hey folks, I am interested in what others have seen in regards to their
experience in the amount of depth and width (CF, Rows Columns)
You are unable to connect? or you are getting an UnavailableException?
On Thu, Oct 27, 2011 at 11:14 AM, RobinUs2 ro...@us2.nl wrote:
I currently run a 2-node cluster with version cassandra 1.0 (stable). With
replication factor 2 on the keyspace which I'm testing. When I shutdown
node
B,
The error I currently see when I take down node B:
Error performing get_indexed_slices on NODE A IP:9160: exception
'cassandra_UnavailableException'
--
View this message in context:
What consistency level are you using? With RF=2 your only option is CL.ONE
when a node is down.
On Thu, Oct 27, 2011 at 11:47 AM, RobinUs2 ro...@us2.nl wrote:
The error I currently see when I take down node B:
Error performing get_indexed_slices on NODE A IP:9160: exception
I'm reading with: cassandra_ConsistencyLevel::ANY (phpcassa lib). Is there
any way to verify that all the nodes know that they are RF=2 ?
--
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Thank you very much Jake! It solved the problem. All reads and writes are
working now.
Have a nice day!
--
View this message in context:
http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/2-node-cluster-1-node-down-overall-failure-tp6936722p6936947.html
Sent from the
Thanks Jake, bottleneck is the disk I believe each write is taking 50ms, EBS
probably (doing testing in ec2).
I will move my testing over to our production network and run it on some
nodes on some real hardware since that where it will end up.
I am seeing things slow down linearly and nothing
Ha. On the one hand, good on you for searching the list archives for
similar problems. On the other hand, after over a year it's probably
worth starting a new thread. :)
Standard questions:
- What Cassandra version are you running?
- Are there exceptions in the log for the machine still
What the problem might be is that you are setting the Consistency Level to a
value bigger than 1. In such cases, Cassandra will respond you with an
UnavailableException since it can't achieve the level of consistency you are
asking for.
Remember that, when you have RF=2, CS values as ALL and
(I see that you did start a new thread and solved it with Jake's help.)
On Thu, Oct 27, 2011 at 11:23 AM, Jonathan Ellis jbel...@gmail.com wrote:
Ha. On the one hand, good on you for searching the list archives for
similar problems. On the other hand, after over a year it's probably
worth
Hi,
Have a requirement to do a multi dc low latency application. This will be
in an active/standby setup. So I am planning on using LOCAL_QUORUM for
writes. Now if there is a hard requirement of maximum loss of data (on a dc
destruction) to some minutes,
- In cassandra what is the recommended
I had the same question you did, I think. Below is as far as I got with Hector…
I have a column family of super-columns with long names. The columns in each
super-column also have long names. I'm using Hector, and what I want to do is
get the last column in each super-column, for a range of
Hello , can anyone tell me what's wrong with the following error:
ERROR [HintedHandoff:1] 2011-10-27 19:57:09,914 AbstractCassandraDaemon.java
(line 133) Fatal exception in thread Thread[HintedHandoff:1,5,main]
java.lang.AssertionError
at
https://issues.apache.org/jira/browse/CASSANDRA-3385
On Thu, Oct 27, 2011 at 1:27 PM, mike...@thomsonreuters.com wrote:
Hello , can anyone tell me what’s wrong with the following error:
** **
ERROR [HintedHandoff:1] 2011-10-27 19:57:09,914
AbstractCassandraDaemon.java (line 133) Fatal
Thank you, Johnathan.
Mike Li
Lead Database Engineer
Thomson Reuters
Phone: 314-468-8128
mike...@thomsonreuters.com
www.thomsonreuters.com
From: Jonathan Ellis [mailto:jbel...@gmail.com]
Sent: Thursday, October 27, 2011 1:37 PM
To: user@cassandra.apache.org
Subject: Re: error message
Why these two gives different results?
./nodetool -h 172.xx.xxx.xx getcompactionthreshold Timeseries TickData
Current compaction thresholds for Timeseries/TickData:
min = 1, max = 2147483647
[default@Timeseries] show schema;
use Timeseries;
...
and min_compaction_threshold = 4
and
It seems that org.apache.cassandra.auth.SimpleAuthenticator is missing in the
cassandra 1.0 binaries. Is this on purpose or did I found a bug?
--
View this message in context:
Thats correct. It was a read consistency problem, not so smart of me ;-)
Thank you anyway.
2011/10/27 Jonathan Ellis jbel...@gmail.com
(I see that you did start a new thread and solved it with Jake's help.)
On Thu, Oct 27, 2011 at 11:23 AM, Jonathan Ellis jbel...@gmail.com
wrote:
Ha. On
On Thu, Oct 27, 2011 at 3:25 PM, RobinUs2 ro...@us2.nl wrote:
It seems that org.apache.cassandra.auth.SimpleAuthenticator is missing in the
cassandra 1.0 binaries. Is this on purpose or did I found a bug?
From NEWS.txt:
- The SimpleAuthenticator and SimpleAuthority classes have been moved
https://issues.apache.org/jira/browse/CASSANDRA-2922
On Thu, Oct 27, 2011 at 3:25 PM, RobinUs2 ro...@us2.nl wrote:
It seems that org.apache.cassandra.auth.SimpleAuthenticator is missing in the
cassandra 1.0 binaries. Is this on purpose or did I found a bug?
--
View this message in context:
Oke, that makes sense, even though I couldn't find it in the first place.
What would you suggest for authentication? Firewall rules that only allow
from whitelist hosts? Writing a custom Authenticator?
--
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For what it's worth, here's where I ended up after digging into Cassandra
security as a new user:
http://petewarden.typepad.com/searchbrowser/2011/08/securing-cassandra-on-ec2.html
On Thu, Oct 27, 2011 at 1:39 PM, RobinUs2 ro...@us2.nl wrote:
Oke, that makes sense, even though I couldn't find
Had found the same thing, and updated:
http://wiki.apache.org/cassandra/SimpleAuthenticator
On 10/27/2011 04:25 PM, RobinUs2 wrote:
It seems that org.apache.cassandra.auth.SimpleAuthenticator is missing in the
cassandra 1.0 binaries. Is this on purpose or did I found a bug?
--
View this
Hi,
I am new for Cassandra and Java.
Can someone guide me to load multiple columns of Cassandra column family
using single statement in Cassandra-cli?
Or load multiple columns using Java program?
Sending sample will be great help.
Thanks
Neetu
Normally in SQL I would use % operator to get what looks like what I
am searching.
Example:
[...] type = image/%
It would give me all the rows that have a column type with image/ in it.
So those would show up:
image/png
image/gif
...
Is there anything similar with Cassandra?
I am also using
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