Hi All,
I downloaded the latest cassandra driver but when used I get an error about
class io.netty.util.timer (netty-3.9.0.Final) not being found during runtime.
If I get the latest netty-alll-4.0.46.Final.jar during runtime I get an
exception about not having a java.security.cert.x509Certificat
-4.0.33.jar.
So what is the right combination to not get this timer class missing exception?
Thanks.
On Wednesday, May 25, 2016 8:26 PM, Tony Anecito
wrote:
Hi All,
I downloaded the latest cassandra driver but when used I get an error about
class io.netty.util.timer (netty-3.9.0.Final) not
?
I am using cassandra driver with the Wildfly J2EE container so I am using the
driver in that configuration not a standalone client. That by the way worked
fine when I was testing some CQL through the driver.
Regards,-Tony
On Wednesday, May 25, 2016 8:56 PM, Tony Anecito
wrote:
Ok
mailing list:
https://groups.google.com/a/lists.datastax.com/forum/m/#!forum/java-driver-user
On Thursday, May 26, 2016, Tony Anecito wrote:
Okay, think I understand the issue. Seems netty/casandra driver expect the
javax.security.cert.X509Certificate to be readily available which it is for
Hi All,Been awhile since I upgaded and wanted to know what the steps are to
upgrade from 2.1.0 to 2.1.9. Also want to know if I need to upgrade my java
database driver.
Thanks,-Tony
Hi All,
Can Cassandra use GPU's? If not can someone recommend a open source database
that runs on GPU's? I am interested in seeing the performance difference of a
database that is under 2GB run on a GPU card such as as NVIDA gtx 980.
Thanks,-Tony
I would also like to know.
Thanks!
On Thursday, March 31, 2016 6:14 AM, Steven Choo wrote:
Hi,
Is it possible to update Cassandra from 2.1.9 to 3.x (e.g. 3.4) in one step?
The info about the tick-tock release schedule does not say anything specific
about it and the documentation on htt
Hi All,Has anyone seen any test results for SQL Server? Although I am a
Cassandra user I do use SQL Server for other companies.
Thanks,-Tony
From: Dor Laor
To: user@cassandra.apache.org
Sent: Tuesday, January 9, 2018 10:31 AM
Subject: Re: Meltdown/Spectre Linux patch - Performance impa
That is great news keep up the great work!
Best Regards,
Tony Anecito
Founder/PresidentMyUniPortal LLC
http://www.myuniportal.com
On Tuesday, August 19, 2014 2:38 AM, Sylvain Lebresne
wrote:
The Cassandra team is pleased to announce the sixth release candidate for the
future Apache
Hi All,
I have a couple of simple questions.
When will Cassandra 2.1 be released as GA?
Will there be a datastax CQL driver available then?
Will Cassandra 2.1 and Datastax CQL driver support nested selects? If not for a
combination key table and detailed table (Star Schema) what is the fastest
20.08.2014 um 22:44 schrieb Tony Anecito :
When will Cassandra 2.1 be released as GA?
When it's finished :) RC6 has been released yesterday - cross your fingers -
this might be 2.1.0
Will there be a datastax CQL driver available then?
Both the Java and Python drivers will get a 2.1.0 release
connections thus
lowering OS resource usage.
Am 20.08.2014 um 23:09 schrieb Tony Anecito :
One last question. I read on someones blog that 2.1 will be up to 50% faster
than 2.0.9 and that CQL will be the fastest to use rather than thrift. Any
comments/thoughts on that?
>
install
do something with an older version I should be aware of? I will look at your
link.
-Tony
On Wednesday, August 20, 2014 4:10 PM, Robert Coli wrote:
On Wed, Aug 20, 2014 at 1:44 PM, Tony Anecito wrote:
When will Cassandra 2.1 be released as GA?
>
>
>
>Will there be a
after 2.0.x has been out awhile and 2.1 when it was
2.1.2 but sounds like should wait til 2.1.6.
So thanks for the help.
-Tony
On , Tony Anecito wrote:
Thanks for the suggestions. I am planning to wait till 2.1 is released and for
one or two minor releases that is why I have been on 1.2.5
.
Something like innovation, courage, determination, faith and wanting to be in
the front and not behind drive me and good to see it here.
Best Regards,
Tony Anecito
On Wednesday, August 20, 2014 8:19 PM, Benedict Elliott Smith
wrote:
The "run versions >= x.x.6" is IMO an out
Thanks Tyler that is good to know.
-Tony
On Thursday, August 21, 2014 10:20 AM, Tyler Hobbs wrote:
On Wed, Aug 20, 2014 at 3:44 PM, Tony Anecito wrote:
>
>Will there be a datastax CQL driver available then?
The Python and C# drivers already have 2.1.0 versions available. Th
Congrads team I know you worked hard on it!!
One question. Where can users get a java Datastax driver to support this
version? If so is it released?
Best Regards,
-Tony Anecito
Founder/President
MyUniPortal LLC
http://www.myuniportal.com
On Thursday, September 11, 2014 9:05 AM, Sylvain
Ok is it part of the release or needs to be downloaded from Datastax somewhere.
I am wondering about the java driver.
Thanks!
-Tony
On Thursday, September 11, 2014 9:47 AM, abhinav chowdary
wrote:
Yes its was released java driver 2.1
On Sep 11, 2014 8:33 AM, "Tony Anecito&qu
If you cached your tables or the database you may not see any difference at all.
Regards,
-Tony
On Tuesday, September 16, 2014 6:36 PM, Mohammed Guller
wrote:
Hi -
We are running Cassandra 2.0.5 on AWS on m3.large instances. These instances
were using EBS for storage (I know it is no
a:
>>>
>>> Latest version: 2.1.1
>>> Maven: http://maven-repository.com/artifact/com.datastax.cassandra
>>> Binary distro: http://www.datastax.com/download#dl-datastax-drivers
>>>
>>> Python:
>>>
>>> Latest version: 2
Thanks for the detail.
1. So how do we know from the trace if the read was from memory or I/O? You
might want to use a java profiler like VisualVM and a plugin for it to show
I/O. But you will have to be a Cassandra developer to understand the output and
tune your filters for the tool.
2. Also
Hi All,
Has anyone done any performance testing of say Cassandra 2.1 using Java 8?
Thanks,-Tony
Hi All,
I asked this over a year ago and it seemed as if OPSCENTER did not have the
capability to maintain data like SQL Server Enterprise tool did. I need a
visual tool that displays rows and allows me to hand edit column info.
Does this tool now do that? Before it was to create schemas and ma
and execute commands
against Cassandra, but it doesn’t have a spreadsheet-like tool for hand editing
columns. That sounds like a great suggestion to make.
See:
http://www.datastax.com/what-we-offer/products-services/devcenter
-- Jack
Krupansky
From: Tony Anecito
Sent: Tuesday, April 15
Hi All,
I am using jdbc driver and noticed that if I run the same query twice the
second time it is much faster.
I setup the row cache and column family cache and it not seem to make a
difference.
I am wondering how to setup cassandra such that the first query is always as
fast as the second on
Tony
From: Jabbar Azam
To: user@cassandra.apache.org; Tony Anecito
Sent: Friday, June 21, 2013 3:32 PM
Subject: Re: Cassandra driver performance question...
Hello Tony,
I would guess that the first queries data is put into the row cache and the
filesystem cache. The second query gets the
the second preparedStatement
object is because of the Metadata is cached then.
So my question is how to test this theory? Is there a way to stop the metadata
from coming accross from Cassandra? A 20x performance improvement would be nice
to have.
Thanks,
-Tony
From: Tony Anecito
To: "
.
Regards,
-Tony
From: Tony Anecito
To: "user@cassandra.apache.org" ; Tony Anecito
Sent: Friday, June 21, 2013 9:33 PM
Subject: Re: Cassandra driver performance question...
Hi Jabbar,
I think I know what is going on. I happened accross a change mentioned by the
jdbc driver
now I am trying to get inserts to work via
JDBC. Running into issues there also but I will work at it till I get them to
work.
Regards,
-Tony
From: Jabbar Azam
To: user@cassandra.apache.org
Cc: Tony Anecito
Sent: Monday, June 24, 2013 3:26 AM
Subject: Re: Cassandra driver performance question
Hi All,
Is nested select supported by Cassandra JDBC driver?
So for a simple example to get a list of user details from a users column
family:
Select * from user_details where user_id in (Select user_id from users)
Thanks!
-Tony
ot; ; Tony Anecito
Sent: Tuesday, June 25, 2013 9:06 AM
Subject: Re: Is nexted selects supported by Cassandra JDBC??
No. CQL3 doesn't support nested selects.
--
Sylvain
On Tue, Jun 25, 2013 at 5:02 PM, Tony Anecito wrote:
Hi All,
>
>
>Is nested select supported by Cassandra
I get http status 404 when I try to download.
Where can I find the release notes for this version?
Thanks,
-Tony
From: Sylvain Lebresne
To: "user@cassandra.apache.org"
Sent: Wednesday, June 26, 2013 8:53 AM
Subject: [RELEASE] Apache Cassandra 1.2.6 release
Hi All,
I have a column family with multiple columns and when I try a where clause with
one of the columns that is not the "key" column Cassandra gives me an error
about it not being an index column.
So where can I find an example of creating a column family with one or more
columns being "Inde
Never mind I figured it out. I found it via a search for Secondary indexes.
Regards,
-Tony
From: Tony Anecito
To: Users-Cassandra
Sent: Wednesday, June 26, 2013 10:39 AM
Subject: Creating an "Index" column...
Hi All,
I have a column f
Hi All,
I noticed the JDBC driver supports batching of preparedStatements but when I
checked into it via google there were comments that it was not supported on the
server side and that was early this Month it was mentioned.
So I assume that is still the status but is there some idea when batch
learning fast and there are some
challenges when moving to a new data model driven by these factors.
Regards,
-Tony
From: Robert Coli
To: user@cassandra.apache.org; Tony Anecito
Sent: Wednesday, June 26, 2013 11:32 AM
Subject: Re: Creating an "Index&qu
_____
From: Arthur Zubarev
To: Tony Anecito ; Robert Coli ;
Users-Cassandra
Sent: Wednesday, June 26, 2013 3:08 PM
Subject: Re: Creating an "Index" column...
Tony hi,
Yes, in some scenarios (e.g. a DW), e.g. absence of proper PKs or indexes
(just too hard to envision, you need
starting to understand it and I agree with you comments it
just depends upon your requirements.
Regards,
-Tony
From: Arthur Zubarev
To: Tony Anecito
Cc: Robert Coli ; Users-Cassandra
Sent: Wednesday, June 26, 2013 9:40 PM
Subject: Re: Creating an "Index" column...
Appre
Hi All,
Using JDBC prepareStatement when I use secondary index and use that in
preparedStatement I get no rows back. If I replace the ? with a integer I get
the rows back I expect. If I use setObject() instead of setInt() I get the
following exception:
encountered object of class: class java.la
Hi All,
What is the best client to use? I want to use CQL 3.0.3 and have support for
preparedStatmements. I tried JDBC and the thrift client so far.
Thanks!
Where can I get a compiled jar? I found out about this yesterday but do not
have environment setup to compile it.
Thanks!
From: Theo Hultberg
To: user@cassandra.apache.org; Tony Anecito
Sent: Thursday, July 4, 2013 2:34 AM
Subject: Re: What is best Cassandra client?
Datastax Java driver
Thanks I found the jar in the maven repository.
-Tony
From: Theo Hultberg
To: user@cassandra.apache.org; Tony Anecito
Sent: Thursday, July 4, 2013 2:34 AM
Subject: Re: What is best Cassandra client?
Datastax Java driver: https://github.com/datastax/java-driver
T#
On Thu, Jul 4, 2013
Hi All,
I am using the DataStax driver and got prepared to work. When I tried to use
the "IN" keyword with a SQL it did not work. According to DataStax IN should
work.
So if I tried:
Select * from items Where item_id IN (Select item_id FROM users where user_id =
?)
Thanks for the feedb
Hi All,
I updated a table with a secondary index. I discovered using CLI describe that
the index was not built.
How do I build an index after I have altered an existing table with data?
I looked at nodetool and cli and saw no command that had the word build index
associated with it. And most o
Thanks,
Apparently for 1.2.5 it did not build automatically. Diescribe shows index[]
which indicates it was not built.
I will try the nodetool command. I dd not see it in the hep list though.
Best Regards,
-Tony
From: Sylvain Lebresne
To: "user@cassandra.apache.org" ; Tony Aneci
ava org.apache.cassandra.tools.NodeCmd --host
What am I doing wrong? Is there good documentation somewhere with command line
example?
Thanks,
-Tony
From: Sylvain Lebresne
To: "user@cassandra.apache.org" ; Tony Anecito
Sent: Friday, July 5, 2013 3:
Hi All,
Had problems with prepared statements not working with Datastax driver and JDBC
driver. I discovered that when changing indexes yoy need to change column
family caching from All to None then back again. Problem is sometimes CLI
crashes when you do that and you need to run it again. I t
back to
the starting state.
I hope someone can tell me why Cassandra is doing this. Is there someing I need
to do so that when I set caching to ALL for my column table and I stop-start
Cassandra the query still works?
Thanks,
-Tony
From: Tony Anecito
To: Users-Cassandra
Sent: Saturday
uly 2013 23:16, Rui Vieira wrote:
>
>CQL does not support sub-queries.
>>
>>
>>
>>On 4 July 2013 22:53, Tony Anecito wrote:
>>
>>Hi All,
>>>
>>>I am using the DataStax driver and got prepared to work. When I tried to use
>>>the
and repeated it. I
can see how this got past all the automated testing.
Regards,
Tony Anecito
JavaOne 2010 Dukes Award Winner
Outstanding Developer and Future of Java Award Winner
Founder/President
MyUniPortal
http://www.myuniportal.com
From: Robert Coli
To: user@cassandra.apache.org; Tony
I will try the pre-prod environment to see what happens.
I filed the issue in JIRA.
Thanks!
From: Tony Anecito
To: Robert Coli ; "user@cassandra.apache.org"
Sent: Monday, July 8, 2013 3:18 PM
Subject: Re: Cassandra intermittant with query in 1.2.5...
Thanks Robert I will
,
-Tony
From: Robert Coli
To: Tony Anecito
Cc: "user@cassandra.apache.org"
Sent: Monday, July 8, 2013 4:27 PM
Subject: Re: Cassandra intermittant with query in 1.2.5...
On Mon, Jul 8, 2013 at 2:39 PM, Tony Anecito wrote:
I filed the issue in JIRA.
For those playing along at hom
Hi All,
I am trying to compare Cassandra to another relational database. I am getting
around 2-3msec response time using Datastax driver, Java 1.7.0_05 64-bit jre
and the other database is under 500 microseconds for the jdbc SQL
preparedStatement execute.. One of the major differences is Cassan
Hi All,
I am using the Datastax native client for Cassandra and have a question. Does
the resultset contain all the Rows? On a JDBC driver there is this concept of
fetch record size. I do not seem to think Datastax did that in their
implementation but that probably is not a requirement.
But I b
: "user@cassandra.apache.org" ; Tony Anecito
Sent: Tuesday, July 16, 2013 12:10 AM
Subject: Re: Recordset capabilities...
Yes, currently the resultSet will contain all the rows, there is no "fetch
size" supported. This will change soon however since Cassandra 2.0 has some
Hi All,
Well I got most everything working I wanted using Cassandra then discovered I
needed to use an Order By. I am using Cassandra 1.2.5.
The use of Order By requires Primary Key which appears to be only supported by
by using CQL and not Cassandra-cli. So I dropped my table created uisng CLI
will post to Datastax the same question
Please ask questions to one group at a time so people do not waste their time
providing answers you already have.
Cheers
-
Aaron Morton
Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com/
On 17/07/2013, at 3:44
, at 11:38 PM, Tony Anecito wrote:
Thanks for the answers.
>
>The reason why I ask is it is stated the composite keys are not the same as
>Primary Key. I found no examples for thrift where it specifcally said the
>composite key is a primary key required by order by. All the ex
ct me if I'm wrong.
On 17/07/2013, at 3:44 PM, Tony Anecito wrote:
>>
>>> Hi All,
>>>
>>> Well I got most everything working I wanted using Cassandra then discovered
>>> I needed to use an Order By. I am using Cassandra 1.2.5.
>>> The
To: "user@cassandra.apache.org" ; Tony Anecito
Sent: Thursday, July 18, 2013 10:16 AM
Subject: Re: Intresting issue with getting Order By to work...
On Thu, Jul 18, 2013 at 8:12 AM, Tony Anecito wrote:
As I work more with CQL and CLI as some other posting I have seen regarding
usage I am t
Hi All,
I am trying to have a table that I can have a key for one CQL to get a row
based on a key and another CQL to where I have a list of keys using the "IN"
keyword and have an ORDER BY clause. The data I am getting is from the Column
value not the Column Name. The issue I am having is tryin
Hi All,
Is there a GUI tool for managing data in Cassandra database? I have google and
seen tools but they seem to be schema management or explorer to just view data.
IT would be great to delete/inset rows or update values for a column via GUI.
Thanks,
-Tony
I use the DataStax driver anm happy with it so far. Also, think about if driver
is being worked on as Cassandra gets updated since CQL version always getting
improved so driver needs to improve wth it. So if driver developers not work on
it often then you should not use it. Also, I think DataSta
in Casandra?
There is a list here.
http://wiki.apache.org/cassandra/Administration%20Tools
Cheers
-
Aaron Morton
Cassandra Consultant
New Zealand
@aaronmorton
http://www.thelastpickle.com/
On 3/08/2013, at 6:19 AM, Tony Anecito wrote:
Hi All,
>
>
>Is there a GUI
>http://www.thelastpickle.com
>
>On 7/08/2013, at 1:28 AM, Tony Anecito wrote:
>
>Thanks Aaron. I found that before I asked the question and Helenos seems the
>closest but it does not allow you to easily use CRUD like say SQL Server
>Management tools where you can get a
Congradulations on all your hard work!
Can 1.2.5 run alongside of 2.0.0 RC 1?
Thanks,
-Tony
From: Eric Evans
To: user@cassandra.apache.org
Sent: Thursday, August 8, 2013 1:44 PM
Subject: [RELEASE] Apache Cassandra 2.0.0 RC 1
The Cassandra team is pleased to announce the first release cand
I agree. I ran into a issue where I ran a single instance and the server was
shut down (without stopping cassandra) and for some reason I lost the database
schema. I was back up quickly only because I had scripts to create the schema
and a backup of the data to load once the schema was created.
67 matches
Mail list logo
