Hi Guys,
If anyone has some wisdom to contribute to the following, I would very much
appreciate it.
Our existing small web application has some _basic_ mechanisims to prevent
abuses such as repeated password guessing, sending spam, and so on, using a
MySQL table. Im looking at if it is practic
You do not need to have a license to use OpsCenter, although enterprise
features only work when running against a DataStax Enterprise cluster.
If the OpsCenter UI is not loading then there is something else wrong here.
A couple of ideas:
* Verify the opscenter process is actually running (and not
The tabs you see at the top of the page indicate distinct clusters not
datacenters. Unfortunately you can not change the name used for these
clusters, but I will note that as a feature request.
In some situations it is possible to add the same cluster twice. If you
click on 'Edit Cluster' after br
You can download it from maven central - http://search.maven.org - search
for cassandra-driver-core and download 2.0.0-rc2.
On Fri, Jan 24, 2014 at 12:36 PM, Chiranjeevi Ravilla <
rccassandr...@gmail.com> wrote:
>
> Thanks for your reply.
>
> Actually i have used datastax driver (
> https://git
Thanks for your reply.
Actually i have used datastax driver (https://github.com/datastax/java-driver)
source and created jar ,but no luck.
Where can we found pre compiled Jar which is suitable for Apache Cassandra
2.0.4 version.
Regards,
Chiru
On 25-Jan-2014, at 1:15 AM, Steven A Robenalt
Hi Chiru,
I would recommend that you consider building your Java application around
CQL3 and the Datastax Java Driver instead. While a JDBC driver gives a
familiar interface, it doesn't give you access to the full power of
Cassandra. If you really want to use JDBC, you may be better off with an
ac
On Fri, Jan 24, 2014 at 5:39 AM, Jean Paul Adant
wrote:
> I'm using cassandra 1.1.9
> I have this columnFamily, created with hector API. Here is its cql2
> descrition.
>
You should not use CQL2, it will be removed from future versions of
Cassandra.
=Rob
Hi All,
Please help me to find Apache-Cassandra-2.0.4 version supported
cassandra-jdbc jar file. we are planning to run java application which will
access Cassandra database.
Thanks
Chiru
We were seeing this issue on 2.0.1, with 9 nodes in one DC, 12 nodes in
another DC. Each DC has replication factor of 3 for all keyspaces. Does
anyone know how to work this around and make nodetool removenode work?
On Fri, Jan 24, 2014 at 6:50 AM, Andrew Losey wrote:
> The problem described in
Does anyone know of any good benchmark data about cassandra replication across
data centers? I'm aware of the articles below.
This article
http://techblog.netflix.com/2011/11/benchmarking-cassandra-scalability-on.html
from netflix is about benchmarking Cassandra scalability using AWS. It shows
did you start Cassandra server ?
thanks
Chandra
On Thu, Jan 23, 2014 at 12:08 AM, Jason Wee wrote:
> Just meant it cannot find the require library, why don't you install
> cassandra package to your distribution ?
> http://rpm.datastax.com/community/noarch/cassandra12-1.2.13-1.noarch.rpm
>
> ht
FYI we are running the enterprise version.
You would think that this might be a good feature to have available?
On 01/23/2014 12:11 PM, Brian Tarbox wrote:
A vaguely related question...my OpsCenter now has two separate tabs
for the same cluster...one tab shows all six nodes and has their
ag
Well, I haven't tried it, but that IS kinda the point of Enterprise vs
Community/free. We have the community version and all of the enterprise
features basically say "sorry you need enterprise version to use this feature"
..
Perhaps if you are evaluating whether you want to spend the money on a
The problem described in ticket 6542,
https://issues.apache.org/jira/browse/CASSANDRA-6542, has been observed in my
environment. This isn't a new problem, as it's been seen across several
differently sized, vnode enabled, clusters for much longer than the age of the
ticket. The problem has defi
Hi All,
Please help me where can we found Apache-Cassandra-2.0.4 version
supported cassandra-jdbc jar file. I want to rum java application.
Thanks
Chiru
On Thu, Jan 23, 2014 at 11:49 PM, Chiranjeevi Ravilla <
rccassandr...@gmail.com> wrote:
> yes,i have placed all the files in correct loc
Nobody to give an answear ?, perhaps i said something stupid :). I Want just
a confirmation that opscenter entreprise doesn't work without a licence.
John,
Yep that makes perfect sense. Thank you for your time I appreciate it!
From: John Anderstedt [mailto:john.anderst...@svenskaspel.se]
Sent: Friday, January 24, 2014 9:08 AM
To: user@cassandra.apache.org
Subject: Re: Cassandra Performance Testing
It sounds to me that the limitation in this
It sounds to me that the limitation in this setup is the disks.
if it’s in a mirror the cost for write’s is the dubble.
If you have the flatfile and the db on the same disk there will be a lot of io
wait.
There is also a question of diskspace and fragmentation, if the flat file
occupies 1,2TB o
Hi all
I'm using cassandra 1.1.9
I have this columnFamily, created with hector API. Here is its cql2
descrition.
CREATE TABLE TDF (
KEY bigint PRIMARY KEY
) WITH
comment='' AND
comparator='CompositeType(org.apache.cassandra.db.marshal.LongType,org.apache.cassandra.db.marshal.LongType,org.ap
Hello,
I am using a single node Cassandra setup with version 2.0.4 to do some simple
performance testing. I generated a 1.2TB flat file from DBGEN (TPC-H), and I
am loading that into Cassandra. I used the "COPY FROM" method from the CQLSH.
My question/problem, the import has been running for
H,
I've upgraded cassandra from 1.2.13 to 2.0.4 on a cluster of 5 nodes. when i
run nodetool -h localhost ring I see this errormessage in the end:
ERROR 10:33:28,324 Unable to initialize MemoryMeter (jamm not specified as
javaagent). This means Cassandra will be unable to measure object sizes
Hi,
I have a table with schema
CREATE TABLE TEST_TABLE (
keyCol bigint,
col1 bigint,
col2 bigint,
col3 text,
) WITH CLUSTERING ORDER BY (col1 DESC, col2 DESC)
on cassandra 1.2.13
I used SSTableSimpleUnsortedWriter and sstableloader to load some data and
loaded data for a keycolum
Is this a non-CQL trick? If not, then would it be possible for you to give
me the CQL3 CREATE TABLE definition instead?
I'm not entirely sure what you mean by "UserId, UserId, UserScore:Score"
and then FriendId, Score, etc.
On Thu, Jan 23, 2014 at 5:06 PM, Colin Clark wrote:
> One of tricks I'
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