hi
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
cal" clusters lead to problems?
>
> No real need to do that anyways, moving from 6 nodes to (eventually) 8
> should be enough lessen the load on the disks, and before more space is
> needed I will probably have more nodes.
>
> Lapo
>
> On 2021-03-20 16:23, Alex Ott wro
I get it correctly?
> Can it be done "better"?
>
> Thanks in advance for any suggestion or correction!
>
> --
> Lapo Luchini
> l...@lapo.it
>
>
> -----
> To unsubscribe, e-mail: user-unsubscr...@cassandr
ch etc.
>
>
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
h is going to pick the best option for local_one reads and any
> compactions or latency deviations from load will make it likely that
> another replica is chosen in practice)
>
> On Nov 11, 2020, at 3:46 AM, Alex Ott wrote:
>
>
> if you force routing key, then the replic
dinator only with no other connections to
> other nodes!
>
> Sent using Zoho Mail <https://www.zoho.com/mail/>
>
>
>
> Forwarded message
> From: Alex Ott
> To: "user"
> Date: Wed, 11 Nov 2020 11:28:56 +0330
> Subject: Re:
so the driver will pick a coordinator where
> the token (partition) exists. Cheers!
>
--
With best wishes, Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
e`.
>
> Is there a Cassandra friendly solution to store the last value of every
> `name` in a separate metadata table? It will come with a lot of
> tombstones... any other solution? :)
>
> --
> Bye,
> Auth Gábor
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
t;
> .setPagingState(pagingState))
>
>
>
> Thanks
>
> Manu
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
> Thanks
>
> Paul
> -
> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
> For additional commands, e-mail: user-h...@cassandra.apache.org
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
acket size).
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
t;
>
> Attila Wind
>
>
>
>
>
>
>
> http://www.linkedin.com/in/attilaw
>
>
> Mobile: +49 176 43556932
>
>
>
>
>
>
>
>
>
>
>
>
> 21.08.2020 11:04 keltezéssel, Alex Ott
>
> írta:
>
>
>
>
>
>
wrote:
>
>> Isn’t it so that explicitly setting a column to NULL also result in a
>> tombstone
>>
>
> True, thanks for pointing that out!
>
> Then as mentioned the use of list,set,map can also result in tombstones
>>
>> See
>> https://www.instaclustr
eresting to me
> why those never generated things like this
>
> thanks!
> --
> Attila Wind
>
> http://www.linkedin.com/in/attilaw
> Mobile: +49 176 43556932
>
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
look into a series of the blog posts that I sent, I think that it should be
in the 4th post
On Thu, Jul 16, 2020 at 8:27 PM Jai Bheemsen Rao Dhanwada <
jaibheem...@gmail.com> wrote:
> okay, is there a way to export the TTL using CQLsh or DSBulk?
>
> On Thu, Jul 16, 2020 at 11
525958
>
> (2 rows)
>
> On Wed, Jul 15, 2020 at 1:17 PM Jai Bheemsen Rao Dhanwada <
> jaibheem...@gmail.com> wrote:
>
>> thank you
>>
>> On Wed, Jul 15, 2020 at 1:11 PM Russell Spitzer <
>> russell.spit...@gmail.com> wrote:
>>
>>
; the new field an additional key then what will be the value of this key for
> existing data?
>
>
>
> Thanks
>
> Manu
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
s/known issues to
> keep in mind before attempting this?
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
r limits / potential performance
> issues I should be concerned about?
>
> Ben Christenson
> Developer
>
> Kinetic Data, Inc.
> Your business. Your process.
> 651-556-0937 | ben.christen...@kineticdata.com
> www.kineticdata.com | community.kineticdata.com
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
--
DSR> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
DSR> For additional commands, e-mail: user-h...@cassandra.apache.org
--
With best wishes,Alex Ott
Principal Architect, DataStax
http://datastax.com/
-
T/UPDATE statements, but that's probably not you).
>>>>
>>>> Or you can use a more flexible database.
>>>>
>>>>
>>>> 2. I need a way to learn all values that are in the "monthyear" and
>>>> "signalid" columns in order to be able to craft that query.
>>>> How can I achieve that in a reasonable way? As I said: The DB is
>>>> round
>>>> about 260 GB which makes it next to impossible to just "have a look"
>>>> at
>>>> the output of "SELECT *"..
>>>>
>>>>
>>>> You probably want to keep another table of monthyear + signalid pairs.
>>>
>>> -
>>> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
>>> For additional commands, e-mail: user-h...@cassandra.apache.org
>>>
>>>
>>>
>>>
>>> The information in this Internet Email is confidential and may be legally
>>> privileged. It is intended solely for the addressee. Access to this Email
>>> by anyone
>>> else is unauthorized. If you are not the intended recipient, any
>>> disclosure, copying,
>>> distribution or any action taken or omitted to be taken in reliance on it,
>>> is
>>> prohibited and may be unlawful. When addressed to our clients any opinions
>>> or advice
>>> contained in this Email are subject to the terms and conditions expressed
>>> in any
>>> applicable governing The Home Depot terms of business or client engagement
>>> letter. The
>>> Home Depot disclaims all responsibility and liability for the accuracy and
>>> content of
>>> this attachment and for any damages or losses arising from any
>>> inaccuracies, errors,
>>> viruses, e.g., worms, trojan horses, etc., or other items of a destructive
>>> nature,
>>> which may be contained in this attachment and shall not be liable for
>>> direct, indirect,
>>> consequential or special damages in connection with this e-mail message or
>>> its
>>> attachment.
>>>
>>> -
>>> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
>>> For additional commands, e-mail: user-h...@cassandra.apache.org
>>>
>>
>> -
>> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
>> For additional commands, e-mail: user-h...@cassandra.apache.org
MR> -
MR> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
MR> For additional commands, e-mail: user-h...@cassandra.apache.org
--
With best wishes,Alex Ott
Principal Architect, DataStax
http://datastax.com/
-
To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
For additional commands, e-mail: user-h...@cassandra.apache.org
year + signalid pairs.
>
> -
> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
> For additional commands, e-mail: user-h...@cassandra.apache.org
>
>
>
>
> The information in this Internet Email is confidential and may be legally
> privileged. It is intended solely for the addressee. Access to this Email
> by anyone else is unauthorized. If you are not the intended recipient, any
> disclosure, copying, distribution or any action taken or omitted to be
> taken in reliance on it, is prohibited and may be unlawful. When addressed
> to our clients any opinions or advice contained in this Email are subject
> to the terms and conditions expressed in any applicable governing The Home
> Depot terms of business or client engagement letter. The Home Depot
> disclaims all responsibility and liability for the accuracy and content of
> this attachment and for any damages or losses arising from any
> inaccuracies, errors, viruses, e.g., worms, trojan horses, etc., or other
> items of a destructive nature, which may be contained in this attachment
> and shall not be liable for direct, indirect, consequential or special
> damages in connection with this e-mail message or its attachment.
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
; Regards,
K> Kunal
K>
--
With best wishes,Alex Ott
Principal Architect, DataStax
http://datastax.com/
-
To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
For additional commands, e-mail: user-h...@cassandra.apache.org
simply run netstat at regular
intervals and go from there. Cheers!
RP> GOT QUESTIONS? Apache Cassandra experts from the community and DataStax
have answers! Share your expertise on https://community.datastax.com/.
--
With
t;in(bam_user)".
Expected: , Got:
NK> ; (cannot convert argument to
integer)
NK> I found examples for prepared statements for inserts but couldn't find any
for select and not able to make it to work.
NK> Any suggestions?
and DataStax
have answers! Share your expertise on
ER> https://community.datastax.com/.
--
With best wishes,Alex Ott
Principal Architect, DataStax
http://datastax.com/
-
To unsubscribe, e-mail: user-unsubs
ondition
>>
>> The COPY command doesn't support filtering and it doesn't perform well
>> for large tables.
>>
>> Have you considered the DSBulk tool from DataStax? Previously, it only
>> worked with DataStax Enterprise but a few weeks ago, it was made free and
>> works with open-source Apache Cassandra. For details, see this blogpost
>> <https://www.datastax.com/blog/2019/12/tools-for-apache-cassandra>.
>> Cheers!
>>
>> On Fri, Jan 17, 2020 at 6:57 PM adrien ruffie
>> wrote:
>>
>> Hello all,
>>
>> In my company we want to export a big dataset of our cassandra's ring.
>> We search to use COPY command but I don't find if and how can a WHERE
>> condition can be use ?
>>
>> Because we need to export only several data which must be return by a
>> WHERE closure, specially
>> and unfortunately with ALLOW FILTERING due to several old tables which
>> were poorly conceptualized...
>>
>> Do you know a means to do that please ?
>>
>> Thank all and best regards
>>
>> Adrian
>>
>>
>>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
> Can anyone explain?
l> thx
--
With best wishes,Alex Ott
Principal Architect, DataStax
http://datastax.com/
-
To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
For additional commands, e-mail: user-h...@cassandra.apache.org
;
> *Thanks & Regards,*
> *Ankit Gadhiya*
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
ode. I’m not a developer
though I want to know why developer don’t have any control on
JB> this to happen.
JB> I’ll appreciate your guidance here.
JB> Thanks
JB> Asad
--
With best wishes,Alex Ott
Solutions Architect EMEA, DataStax
http
ead Thread[MutationStage-2,5,main]:
So... I restarted again. The error disappeared. I ran a full repair and
everything seems to be back in order. I could decommission a node
without problem.
Thanks for your help !
Alex
Le 05.04.2019 10:55, Alain RODRIGUEZ a écrit :
> Alex,
>
>> W
ache.org
BR> For additional commands, e-mail: user-h...@cassandra.apache.org
--
With best wishes,Alex Ott
Solutions Architect EMEA, DataStax
http://datastax.com/
-
To unsubscribe, e-mail: user-unsubsc
rack1
UN 192.168.1.22 27.7 GiB 256 37.2%
09d24557-4e98-44c3-8c9d-53c4c31066e1 rack1
Alex
Le 04.04.2019 18:26, Alex a écrit :
> Hi,
>
> @ Alain and Kenneth :
>
> I use C* for a time series database (KairosDB) ; replication and consist
-53c4c31066e1
Is it expected ?
If I cannot fix this, I think I will add new nodes and remove, one by
one, the nodes that show the dead node in nodetool status.
Thanks all for your help.
Alex
Le 04.04.2019 17:45, Alain RODRIGUEZ a écrit :
> Hi Alex,
>
> About previous advices:
has been
changed by the previous instance.
In 'nodetool gossipinfo', the node is marked as "LEFT" on every node.
However, in 'nodetool describecluster', this node is marked as
"unreacheable" on 3 nodes out of 5.
Alex
Le 04.04.2019 00:56, Anthony Grasso a écrit :
>
clops-group/jmxterm-1.0-alpha-4-uber.jar
java -jar ./jmxterm.jar
$>open localhost:7199
$>bean org.apache.cassandra.net:type=Gossiper
$>run unsafeAssassinateEndpoint 192.168.1.18
$>quit
Happy deleting
-----Original Message-
From: Alex [mailto:m...@aca-o.com]
Sent: Wednesday, A
e have different tokens in system.peers.
I should add that I also tried decommission on a node that still
192.168.1.18 in its peers. - it is still marked as "leaving" 5 days
later. Nothing in notetool netstats or nodetool compactionstats.
Thank you for taking the time to re
Peak transfer rate : 0.000KiB/s
OH> I'm always getting the message "Skipping file mc-11-big-Data.db: table
snapshots.table3 doesn't exist". I also tried to rename
OH> the snapshots folder into the keyspace name (cass_testapp) but then I get
the message "Skipping file
Hi Anumod
Echoing what Christophe said, you should also mention what OS you are
using, so that we would be able to help you get to the solution.
Cheers,
Alex.
On Wed, 28 Mar 2018 at 11:05 Christophe Schmitz <christo...@instaclustr.com>
wrote:
> Hi Anumod,
>
> When you install
I see a lot of that on one of our clusters.
There is pretty much no load on it. Clocks are quite well synchronized.
date +start:%H:%M:%S.%N ; for d in 2 3 4 5 6 8 9; do ssh 10.3.0.17$d date
+%H:%M:%S.%N & done;date +end:%H:%M:%S.%N
start:01:22:45.478726356
end:01:22:45.480993049
t;
>
> --> But if your MV has the same primary key as your view, how can it be
> possible ?
>
> Can you elaborate on what you mean by "non filtered full scan on MV" ?
> Please give us some sample SELECT queries
>
> On Thu, Sep 7, 2017 at 5:11 PM, Alex Kotelnikov
y...@gmail.com> wrote:
>
>> The answer of your question is in the error message. For once it's very
>> clear. The primary key of your materialized view is EXACTLY the same as for
>> your base table.
>>
>> So the question is what's the point creating this materia
materialized view is EXACTLY the same as for
> your base table.
>
> So the question is what's the point creating this materialized view ...
>
>
>
> On Thu, Sep 7, 2017 at 4:01 PM, Alex Kotelnikov <
> alex.kotelni...@diginetica.com> wrote:
>
>> Hey. I have a
Hey. I have a problem creating a materialized view.
My case is quite similar to
https://issues.apache.org/jira/browse/CASSANDRA-13564
but discussion in comments there faded, let me describe by case.
I have a table like
CREATE TABLE users (
site_id int,
user_id text,
n int,
data
https://github.com/brianmhess/cassandra-loader/blob/master/
> src/main/java/com/datastax/loader/CqlDelimUnload.java
>
>
>
> On Thu, Aug 17, 2017 at 10:00 AM, Alex Kotelnikov <
> alex.kotelni...@diginetica.com> wrote:
>
>> yup, user_id is the primary key.
>>
>> Firs
17 August 2017 at 19:54, Dor Laor <d...@scylladb.com> wrote:
> On Thu, Aug 17, 2017 at 9:36 AM, Alex Kotelnikov <
> alex.kotelni...@diginetica.com> wrote:
>
>> Dor,
>>
>> I believe, I tried it in many ways and the result is quite disappointing.
>>
tor to validate that my test multithreaded app is
not the bottleneck. It is not.
I expected some kind of elasticity, I see none. Feels like I do something
wrong...
On 17 August 2017 at 00:19, Dor Laor <d...@scylladb.com> wrote:
> Hi Alex,
>
> You probably didn't get the paralelism right. S
Hey,
we are trying Cassandra as an alternative for storage huge stream of data
coming from our customers.
Storing works quite fine, and I started to validate how retrieval does. We
have two types of that: fetching specific records and bulk retrieval for
general analysis.
Fetching single record
he quiet
>>> periods). Tried restarting the clients, also no luck. Checked nodetool
>>> status and ownership is even across the cluster.
>>>
>>> Curious if anyone's seen this behavior before. Seems like the next step
>>> will be to debug the client and see why it's choosing that node.
>>>
>>> [image: Inline image 1]
>>>
>>>
>>> --
>>> AB
>>>
>>
>
>
> --
> AB
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
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.x509Certificate
> class.
>
> So what to do?
>
> Thanks!
>
>
>
>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
<http://cassandrasummit.org/Email_Signature>
» DataStax Enterprise - the database for cloud applications. «
reaking changes. That's unfortunate but sometimes
the only way we can push things forward.
I do agree with your assessment 1000% that if starting now, the best
version to go with is the latest on the 3.0 branch.
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
<http://c
Driver release is most stable (production ready) for
> Cassandra 2.1?
>
> Thanks
> Anuj
>
>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
<http://cassandrasummit.org/Email_Signature>
» DataStax Enterprise - the database for cloud applications. «
d to "please report" so I guess I am. If what I have
> provided is enough information to actually file a bug report, please let me
> know and I will. Otherwise, what additional information can I collect for
> this?
>
> Thanks,
> Thunder
>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
e schema def to 1-3 letters, to no
> avail.
>
> Does anyone know what this is about and how I can solve this?
>
> Running Cassandra 2.2.4, Datastax driver 3.0.0.
>
> Regards,
> Emils
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
hen construct a DataSet myself.
>
> Thanks & regards
> Arko
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
future versions
will add more). Just to give you a quick example, if using DevCenter to
make schema changes it will offer the options of saving the final
definition or just the set of changes applied (to an existing CQL file or a
new one).
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
On Tue, Feb 2, 2016 at 8:12 AM, Richard L. Burton III <mrbur...@gmail.com>
wrote:
> is this behavior only related to the Java Drivers?
All DataStax drivers for Cassandra provide the node discovery feature and
are aware of the cluster topology.
--
Bests,
Alex Popescu | @al3x
but
I've never jumped to answer any of them as I confess not knowing the
purpose of your research/report makes me caution (e.g. are you doing this
for your current employer evaluating the future use of the product? are you
doing this for an analyst company? are you planning to sell this report
or am I going down the wrong
> path? I am using the DataStax 2.0.2 driver, with Cassandra 2.0.8.
>
>
>
> Should I be using instead of ?
>
>
>
> Does anybody have a working example they can share? Any help to get me
> going would be appreciated. Thanks.
>
>
>
> Bill
>
>
>
>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
configuration with replication factor=2
> Spark 1.5.1
> Cassandra Java Driver 2.2.0-rc3
> Spark Cassandra Java Connector 2.10-1.5.0-M2
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
bok...@gmail.com> wrote:
> By the way, when would be the version 2.1.10 published?
>
> 2015-12-15 10:02 GMT+08:00 joseph gao <gaojf.bok...@gmail.com>:
>
>> That's great. Thanks, Alex!
>>
>> 2015-10-02 0:36 GMT+08:00 Alexandre Dutra <alexandre.du...@datastax.co
eClusterConfController: Unable to connect to cluster. Error is: Unable
> to connect to any
> seed nodes, tried [u'172.20.30.91']
>
>
> How can we switch to protocol_version to 4?
> Does OpsCenter officially support the latest version of Cassandra?
> Did anybody try to setup it?
ata loss is to dump your data (using cqlsh's COPY TO
> or something similar) and then re-load it on 2.2 (using cqlsh's COPY FROM
> or something similar).
>
>
> --
> Tyler Hobbs
> DataStax <http://datastax.com/>
>
>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
;> saving. http://www.gov.uk/PHE
>>>
>>> **
>>>
>>
>>
>> **
>> The information contained in the EMail and any attachments is
>> confidential and intended solely and for the attention and use of the named
>> addressee(s). It may not be disclosed to any other person without the
>> express authority of Public Health England, or the intended recipient, or
>> both. If you are not the intended recipient, you must not disclose, copy,
>> distribute or retain this message or any part of it. This footnote also
>> confirms that this EMail has been swept for computer viruses by
>> Symantec.Cloud, but please re-sweep any attachments before opening or
>> saving. http://www.gov.uk/PHE
>> **
>>
>
>
> **
> The information contained in the EMail and any attachments is confidential
> and intended solely and for the attention and use of the named
> addressee(s). It may not be disclosed to any other person without the
> express authority of Public Health England, or the intended recipient, or
> both. If you are not the intended recipient, you must not disclose, copy,
> distribute or retain this message or any part of it. This footnote also
> confirms that this EMail has been swept for computer viruses by
> Symantec.Cloud, but please re-sweep any attachments before opening or
> saving. http://www.gov.uk/PHE
> **
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
e.SessionManager.initAsync(SessionManager.java:75)
> at
> com.datastax.driver.core.SessionManager.init(SessionManager.java:67)
> at
> com.datastax.driver.mapping.MappingManager.getProtocolVersion(MappingManager.java:65)
> at
> com.datastax.driver.mapping.MappingManager.(MappingManager.java:56)
>
> Could you please say what does it mean?
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
ld extremely reduce the memory
> usage
>
> thanks a lot
>
> --
> --
> Joseph Gao
> PhoneNum:15210513582
> QQ: 409343351
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
<http://cassandrasummit-datastax.com/?utm_campaign=summit15_medium=summiticon_source=emailsignature>
*)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(
*NioEventLoop.java:382*)
at io.netty.channel.nio.NioEventLoop.run(*NioEventLoop.java:354*)
... 2 more
What Am I doing wrong?
Thank you for your help.
Regards
Philippe SURAY
--
Bests,
Alex Popescu | @al3xandru
Sen
. It is the most up-to-date, feature rich, and
tunable C# driver for Apache Cassandra and DataStax Enterprise.
Anyways, if there's anything missing we are always happy to improve it.
(as you can see from my sig, I do work for DataStax, but the above is very
true)
--
Bests,
Alex Popescu | @al3xandru
Sen
/26436009/eclipse-luna-crashes-on-new-project-in-ubuntu
which mentions a workaround.
3. Last but definitely the most important, I'd strongly encourage you to
upgrade to the latest version of DevCenter 1.3.1
http://www.datastax.com/download-ops-dev#DataStax_DevCenter
--
Bests,
Alex Popescu
-statements
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
is very sparse and there's no mention on
how to plug this into Twisted event-loop.
Does anyone have a small working example on how to use both of these?
Thanks!
Jonathan
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
cassandra.h . the compilation is never completed and I have the error
file/directory cassandra.h not found. Any idea how to fix this knowing that
I have the Datastax Cassandra cpp-driver installed??
In advance, thank you for your response,
Sara
--
Bests,
Alex Popescu | @al3xandru
Sen. Product
will really appreciate an
answer.
PS 2: I'm intern and i'm completely new to cassandra so...
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
We run between US/EU regions on AWS with more than 45ms latency without any
issues. Just use an appropriate amount of replicas in each datacenter and
make use of the appropriate consistency level (e.g local_quoram)
On Tue, Apr 28, 2015 at 2:43 PM, Daniels, Kelly kelly.dani...@charter.com
wrote:
.
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
doesn't support skipping so this is not really a limitation of
the driver.
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
, insert passed.
Please advice. thx.
best regards
Tom
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
.
Regards
Andi
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
.
Andy
The University of Dundee is a registered Scottish Charity, No: SC015096
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
that the driver uses to query
Cassandra?
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
/
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
could support
it from CQL that would be great.
Regards,
\EF
You'll have better chances to get an answer about the Python driver on its
own mailing list
https://groups.google.com/a/lists.datastax.com/forum/#!forum/python-driver-user
--
[:-a)
Alex Popescu
Sen. Product Manager @ DataStax
Just make sure you understand the effect of consistency levels on your
performance. You (probably) don't want to be going over the WAN for reads
etc.
We run across the US/EU AWS regions and don't have any problems with higher
RTT.
On Mon, Oct 13, 2014 at 2:51 AM, Siddharth Karandikar
in descanter ?
Andy
The University of Dundee is a registered Scottish Charity, No: SC015096
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
.
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
/YT7znJ
[8]: http://goo.gl/Rg3tdA
[9]: http://goo.gl/JfDBGW
[10]: http://goo.gl/kQl7GW
[11]: http://goo.gl/OTNqiQ
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
When you say you moved from EBS to SSD, do you mean the EBS HDD drives to
EBS SSD drives? Or instance SSD drives? The m3.large only comes with 32GB
of instance based SSD storage. If you're using EBS SSD drives then network
will still be the slowest thing so switching won't likely make much of a
Mohammed, to add to previous answers, EBS is network attached, with SSD or
without it , you access your disk via network constrained by network
bandwidth and latency, if you really need to improve IO performance try
switching to ephemeral storage (also called instance storage) which is
based on a log of new purchases, there you could once again
use Spark or Storm with something like this
https://github.com/pmerienne/trident-ml.
Alex
On Fri, Aug 29, 2014 at 10:24 PM, Adaryl Bob Wakefield, MBA
adaryl.wakefi...@hotmail.com wrote:
I’m planning to speak at a local meet-up and I
On Thu, Jul 24, 2014 at 12:12 AM, Hao Cheng br...@critica.io wrote:
Hello,
Based on what I've read in the archives here and on the documentation on
Datastax and the Cassandra Community, EBS volumes, even provisioned IOPS
with EBS optimized instances, are not recommended due to inconsistent
as a backup solution, although I know even less
about it. Did you use Priam and if so, how were your experiences with it?
On Thu, Jul 24, 2014 at 3:07 AM, Alex Major al3...@gmail.com wrote:
On Thu, Jul 24, 2014 at 12:12 AM, Hao Cheng br...@critica.io wrote:
Hello,
Based on what I've read
results than a generic interface. This would make things a lot
more complicated on C* side
and could potentially expose your data to security risks.
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
are running in a two node cluster, with RF = 2, write and read
consistency = ALL (but same results using QUORUM).
Thanks in advance.
Best regards,
Marcelo.
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
I am reasonably experienced with Hadoop and Pig but less so with Cassandra.
I have been banging my head against the wall as all the documentation
assumes I know something...
I am using Apache's tarball of Cassandra 1.something and I see that there
are some example pig scripts and a shell script
).
Any thoughts are greatly appreciated.
Thanks,
Alexey
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
)
Any pointer/suggestions?
-Vivek
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
On Thu, Mar 27, 2014 at 2:23 AM, user 01 user...@gmail.com wrote:
Btw both Hector Datastax java driver are maintained by Datastax, both
for java, this speaks for itself !
Hector is not maintained by DataStax.
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
/lib/python2.7/site-packages/cassandra/io/asyncorereactor.py,
line 52, in _run_loop
type 'exceptions.AttributeError': __exit__
Can someone help me fixing this error?
Regards,
Sundeep
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
(or find a
way to pool Sessions), but should I be creating a new cluster first? What
about a builder?
John “lost in the abyss”
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
1 - 100 of 155 matches
Mail list logo
