MODIFY ON KEYSPACE uat_chat_api from reaper;
do not. Any ideas why?
Please, help.
--
Best regards,
Alex Kolesnik
hi
>
>
--
With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
hosts or "asymmetrical" 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-
8) nodes?
>
> Did 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:
and change to
> NetworkTopologyStrategy later? I suspect this might not work as I think
> this needs changing snitch etc.
>
>
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
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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 replica t
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
are policy 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
>
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e)
>
> .setPagingState(pagingState))
>
>
>
> Thanks
>
> Manu
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
>
>
>
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> Thanks
>
> Paul
> -
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of packet size).
>
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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:
>
>
>
>
>
>
>
qvantel.com> 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://
rently but still interesting to me
>why those never generated things like this
>
> thanks!
> --
> Attila Wind
>
> http://www.linkedin.com/in/attilaw
> Mobile: +49 176 43556932
>
>
>
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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
> 4525958
>
> (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:
&g
ty. But if I am allowed to make
> 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
>
>
>
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With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
limitations/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
>
>
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Twitter: alexott_en (English), alexott (Russian)
DSR> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org
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Principal Architect, DataStax
http://datastax.com/
---
t;>> advanced, in which case you do it based on the transaction semantics of
>>>> the INSERT/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.
>>>
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quot;SELECT *"..
> >
> >
> > You probably want to keep another table of monthyear + signalid pairs.
>
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> Depot terms of business or client engagement letter. The Home Depot
> disclaims all responsibility and liability for the accuracy and content of
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> items of a destructive nature, which may be contained in this attachment
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K> Regards,
K> Kunal
K>
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Principal Architect, DataStax
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you could 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/.
alid type for column "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
community and DataStax
have answers! Share your expertise on
ER> https://community.datastax.com/.
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cassandra.apache.org
>> *Objet :* Re: COPY command with where condition
>>
>> 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
>>
>>
>>
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With best wishes,Alex Ott
http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
age of ResultSet.
l> Can anyone explain?
l> thx
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.
>
>
> *Thanks & Regards,*
> *Ankit Gadhiya*
>
>
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http://alexott.net/
Twitter: alexott_en (English), alexott (Russian)
the code. 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
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Solutions Architect EMEA, DataStax
xception on
thread 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,
&
ache.org
BR> For additional commands, e-mail: user-h...@cassandra.apache.org
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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 consistenc
-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 Grass
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
$>quit
Happy deleting
-----Original Message-
From: Alex [mailto:m...@aca-o.com]
Sent: Wednesday, A
e have different tokens in system.peers.
I should add that I also tried decommission on a node that still
192.168.1.18 in its peers. - it is still marked as "leaving" 5 days
later. Nothing in notetool netstats or nodetool compactionstats.
Thank you for taking the time to re
000KiB/s
OH> Peak transfer rate : 0.000KiB/s
OH> I'm always getting the message "Skipping file mc-11-big-Data.db: table
snapshots.table3 doesn't exist". I also tried to rename
OH> the snapshots folder into the keyspace name (cass_testapp) but then I get
t
Hi Anumod
Echoing what Christophe said, you should also mention what OS you are
using, so that we would be able to help you get to the solution.
Cheers,
Alex.
On Wed, 28 Mar 2018 at 11:05 Christophe Schmitz
wrote:
> Hi Anumod,
>
> When you install Cassandra using the tarball install,
I see a lot of that on one of our clusters.
There is pretty much no load on it. Clocks are quite well synchronized.
date +start:%H:%M:%S.%N ; for d in 2 3 4 5 6 8 9; do ssh 10.3.0.17$d date
+%H:%M:%S.%N & done;date +end:%H:%M:%S.%N
start:01:22:45.478726356
end:01:22:45.480993049
01:22:45.570313
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 <
> alex.kotelni...@di
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 materialized view ...
>>
>>
>>
>
LY 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 problem creating
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 set>,
PR
ra-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.
>>
>> First of all,can you sha
17 August 2017 at 19:54, Dor Laor 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.
>> I've run my scans on 3 diff
or 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 wrote:
> Hi Alex,
>
> You probably didn't get the paralelism right. Serial scan has
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 wo
ied 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
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
nfortunate 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://cassandrasummit.or
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. «
t said 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
o 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
can then construct a DataSet myself.
>
> Thanks & regards
> Arko
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
ore). 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
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 | @al3xandru
Sen. Product Manager @ DataStax
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
27;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?
etc. etc)
ation 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
the way, when would be the version 2.1.10 published?
>
> 2015-12-15 10:02 GMT+08:00 joseph gao :
>
>> That's great. Thanks, Alex!
>>
>> 2015-10-02 0:36 GMT+08:00 Alexandre Dutra :
>>
>>> I confirm that the optional schema metadata feature (JAVA-828
>&
calling
> CreateClusterConfController: 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?
>
> Please advice. Thank you!
>
> --
>
> Sergey Panov
>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
jor versions isn't supported, which is why we recommend that
> you take a snapshot before upgrading. Your only real option for
> downgrading without data 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
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
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>>
>
>
> **
> 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
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Sen. Product Manager @ DataStax
anager.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
duce 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&utm_medium=summiticon&utm_source=emailsignature>
el.DefaultChannelPipeline.fireChannelRead(
> *DefaultChannelPipeline.java:846*)
>
>at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(
> *AbstractNioByteChannel.java:131*)
>
>at io.netty.channel.nio.NioEventLoop.processSelectedKey(
> *NioEventLoop.java:511*
nts
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
/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 | @
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
S
documentation for the async API 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
he 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 Manager @ DataStax
so dump, but I 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
wrote:
> We will be anxious to co
some good suggestions
here.
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
.237:9042]
>> Cannot connect*
>>
>>
>>
>>
>>
>> Does anyone have any experience with connecting to AWS clusters from dev
>> machines? How have you set up your aliases to get around this issue?
>>
>>
>>
>> Current setup in sales3 (seed node) cassandra.yaml:
>>
>>
>>
>> *- seeds: "sales3"*
>>
>> *listen_address: sales3*
>>
>> *rpc_address: sales3*
>>
>>
>>
>> Current setup in other nodes (eg sales2) cassandra.yaml:
>>
>>
>>
>> *- seeds: "sales3"*
>>
>> *listen_address: sales2*
>>
>> *rpc_address: sales2*
>>
>>
>>
>>
>>
>> Thanks!
>>
>> Matt
>>
>>
>>
>
--
Bests,
Alex Popescu | @al3xandru
Sen. Product Manager @ DataStax
#x27;t support skipping so this is not really a limitation of
the driver.
--
[:>-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
ror.
>
> If I remove "IF NOT EXISTS" from cql, insert passed.
>
> Please advice. thx.
>
> best regards
> Tom
>
--
[:>-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
ertEquals(4, priceType.getFieldNames().size()); //
> AssertionFailedError: expected:<4> but was:<0>
>
>
>
> I am testing with Cassandra v.2.1.2 on Windows using Datastax Java Driver
> 2.1.2.
>
>
>
> I am thankful for any suggestions.
>
>
>
> Regards
>
> Andi
>
--
[:>-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
Works ok (rund in devcenter and cqlsh) but dev centre flags the missing
> values with an error. Minor, but may throw people a curve.
>
> Andy
>
>
>
> The University of Dundee is a registered Scottish Charity, No: SC015096
>
--
[:>-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
t;
> How can I increase the number of threads that the driver uses to query
> Cassandra?
>
>
>
--
[:>-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
ng * Alerting * Anomaly Detection * Centralized Log Management
> Solr & Elasticsearch Support * http://sematext.com/
>
>
--
[:>-a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
to avoid having to rewrite all my tools at once, so if I 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/p
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 <
siddharth.
support in descanter ?
>
> Andy
>
>
> The University of Dundee is a registered Scottish Charity, No: SC015096
>
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
itself?
>
> Looking at the docs and the current Java driver it doesn't seem that way.
>
--
:- 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
dif
//goo.gl/k4eM39 (CHANGES.txt)
> [2]: http://goo.gl/npCsro (NEWS.txt)
> [3]: http://wiki.apache.org/cassandra/DebianPackaging
> [4]: http://goo.gl/MjohJp
> [5]: http://goo.gl/f8jSme
> [6]: http://goo.gl/6TJPH6
> [7]: http://goo.gl/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
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
physically
ra. Then
the next stage is using the model to classify new data, e.g. recommend
similar items 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&qu
cluster sizes. I've also
> seen duplicity mentioned 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 wrote:
>
>> On Thu, Jul 24, 2014 at 12:12
On Thu, Jul 24, 2014 at 12:12 AM, Hao Cheng 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
> performance
h better 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
ocal/lib/python2.7/site-packages/cassandra/cluster.py",
> line 2300, in result
> raise self._final_exception
> cassandra.ReadTimeout: code=1200 [Timeout during read request]
> message="Operation timed out - received only 1 responses."
> info={'re
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 to
; * each DC: 7 nodes
> * RF=5
> * Leveled compaction
>
> After cassandra restart on all nodes, the latencies are alright again
> (average < 5ms, max 50ms).
>
> Any thoughts are greatly appreciated.
>
> Thanks,
> Alexey
>
>
>
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
otocol.readAll(TBinaryProtocol.java:362)
>>> > at
>>> org.apache.thrift.protocol.TBinaryProtocol.readI32(TBinaryProtocol.java:284)
>>> > at
>>> org.apache.thrift.protocol.TBinaryProtocol.readMessageBegin(TBinaryProtocol.java:191)
>>> > at
>>> org.apache.thrift.TServiceClient.receiveBase(TServiceClient.java:69)
>>> >
>>> > Any pointer/suggestions?
>>> >
>>> > -Vivek
>>>
>>>
>>
>>
>
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
gt; [cqlsh 4.1.1 | Cassandra 2.0.6 | CQL spec 3.1.1 | Thrift protocol
> 19.39.0]
> Use HELP for help.
>
> What can I do to make DevCenter understand it should be connecting using
> 3.1.1?
>
> ---
> Philip
> g...@gpcentre.net
> http://www.gpcentre.net/
>
--
:- a)
Alex Popescu
Sen. Product Manager @ DataStax
@al3xandru
On Thu, Mar 27, 2014 at 2:23 AM, user 01 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
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