a metrics like
> Client r-w latencies, node status, jvm metrics and such.
> https://github.com/prometheus/jmx_exporter
>
>
>
>
> 2018-07-06 18:01 GMT+03:00 Thouraya TH :
>
>>
>>
>> 2018-07-06 13:04 GMT+01:00 Simon Fontana Oscarsson <
>> simon.fonta
.
2018-07-06 16:01 GMT+01:00 Thouraya TH :
>
>
> 2018-07-06 13:04 GMT+01:00 Simon Fontana Oscarsson <
> simon.fontana.oscars...@ericsson.com>:
>
>> Running nodetool status is okay if you want the simplest solution.
>> But it generates a lot of output and creates
atan 1
> 37133 Karlskrona, Sweden
> simon.fontana.oscars...@ericsson.com
> www.ericsson.com
>
> On fre, 2018-07-06 at 11:18 +0100, Thouraya TH wrote:
> > Hi,
> > Thank you so much for answers.
> >
> > Please, can you explain more what's metric libraries ? and give me so
makes monitoring the health of
> cluster very easy.
>
> Regards,
> Anthony
>
> On Sun, 1 Jul 2018 at 20:19, Thouraya TH wrote:
>
>> Hi,
>> Thank you so much for answer.
>> Please, is it possible to use this command ?
>>
>> nodetool status my
.11/
> src/java/org/apache/cassandra/tools/nodetool/Status.java
>
> On Tue, Jul 3, 2018 at 7:57 AM, Thouraya TH wrote:
>
>> Hi all,
>> Please, can you give me a link to the source code behind the command
>> "nodetool status" ?
>> Thank you so much.
&
Hi all,
Please, can you give me a link to the source code behind the command
"nodetool status" ?
Thank you so much.
KInd regards.
etool you are
> actually accessing data inside Cassandra via JMX.
>
> You can start there at first.
>
> Rahul
> On Jun 28, 2018, 10:55 AM -0500, Thouraya TH ,
> wrote:
>
> Hi,
>
> Please, how can check the health of my cluster / data center using
> cassandra ?
> In
Hi,
Please, how can check the health of my cluster / data center using
cassandra ?
In fact i'd like to generate a hitory of the state of each node. an history
about the failure of my cluster ( 20% of failure in a day, 40% of failure
in a day etc...)
Thank you so much.
Kind regards.
Hello,
Please is there a comparision study "DHT cassandra VS DHT GlusterFS" ?
Thanks for help.
gt;
> Carlos Alonso | Software Engineer | @calonso <https://twitter.com/calonso>
>
> On 17 March 2016 at 16:10, Thouraya TH <thouray...@gmail.com> wrote:
>
>> Hi all;
>>
>> Please, i have a question about the architecure behind SELECT command.
>> Gi
Hi all;
Please, i have a question about the architecure behind SELECT command.
Given this table:
c1 c2 c3
value1 value2 value3
...
etc...
lines of this table are distributed over nodes that's it ?
Thank you so much
tested it and i can get the list of all elements from ANY NODE.
Bests.
2016-03-17 16:10 GMT+01:00 Thouraya TH <thouray...@gmail.com>:
> Hi all;
>
> Please, i have a question about the architecure behind SELECT command.
> Given this table:
>
> c1 c2 c3
Can you give me more details please ?
Thanks a lot.
2016-02-21 20:24 GMT+01:00 Jonathan Haddad <j...@jonhaddad.com>:
> You don't need to use Gossip to store that, you can just put it in a
> table.
>
> On Sun, Feb 21, 2016 at 9:38 AM Thouraya TH <thouray...@gmail.com>
pansky
>
> On Sun, Feb 21, 2016 at 8:56 AM, Thouraya TH <thouray...@gmail.com> wrote:
>
>> Hi all;
>>
>> Please, where can i find what are the details saved by gossip protocol ?
>>
>> Is it possible to add other informations to informations exchanged
>> between nodes using gossip protcol ?
>>
>> Thank you so much.
>> Kind regards.
>>
>
>
Hi all;
Please, where can i find what are the details saved by gossip protocol ?
Is it possible to add other informations to informations exchanged between
nodes using gossip protcol ?
Thank you so much.
Kind regards.
Hi all,
Please, is there a scientific paper about this topic "How Cassandra reduce
the size of stored data on nodes and exchanged between nodes"?
Thank you so much for help.
Best Regards.
damentals.
> It'll answer a lot of the questions you're likely to ask next, including
> this one.
>
> https://academy.datastax.com/courses/ds101-introduction-cassandra
>
> On Tue, Sep 15, 2015 at 2:04 PM Thouraya TH <thouray...@gmail.com> wrote:
>
>> Hi all;
>>
&g
Hi all;
Please, is it possible to use insert queries in parallel at the same time
in two different nodes ? Or, i will a concurrency problem ?
Thanks you so much for answers.
Best regards.
Hi all,
Please, the gossip procotol in cassandra is running every ... seconds ?
Thank you so much for answers.
Best Regards.
, to three seconds ?
Kind regards.
2015-09-14 14:15 GMT+01:00 Thouraya TH <thouray...@gmail.com>:
> Hi all,
>
> Please, the gossip procotol in cassandra is running every ... seconds ?
>
>
> Thank you so much for answers.
> Best Regards.
>
Hi all;
Please with the version cassandra 2.0.6, we have by default one coordinator
per data center, per client or per query ?
Thank you so much for help.
Kind Regards.
Hi all,
Each node in cassandra ring has a unique identifier nodeID of
128bytes, obtained
by a hashing of ?
ip address ?
Thank you so much for help.
Kind Regards.
Hi all,
1- I have 4 nodes A, B, C, and D (A is the seed node). I have modified
seed node address and listen address of each Cassandra.yaml file (I have
modified nothing else)
2-
Then, from A:
CREATE KEYSPACE my_keyspace WITH REPLICATION = {‘class’:’Simple Strategy,
Hi all,
Please, i try to undestand how gossip protocol is used in cassandra.
I read this:
“This is most critical the first time a node starts up. By default, a node
remembers other nodes it has gossiped with between subsequent restarts. *The
seed node designation has no purpose other than
Ok, thank you so much for answer.
Kind Regards.
2015-08-03 15:09 GMT+01:00 DuyHai Doan doanduy...@gmail.com:
Yes it is used by Gossip
On Mon, Aug 3, 2015 at 3:33 PM, Thouraya TH thouray...@gmail.com wrote:
Ok, i will see this reference. thank you so much for answer.
So i understand
-entropy protocols.
In Proceedings
of the 2nd Large Scale Distributed Systems and Middleware Workshop (LADIS
'08)
- bharat
On Sun, Aug 2, 2015 at 10:31 AM, Thouraya TH thouray...@gmail.com wrote:
Hi all,
Please, is there Scientific Paper of Gossip Protocol (algorithm) used by
cassandra
Hi all,
Please, can you explain me this sentence:
The configuration parameter phi_convict_threshold in the cassandra.yaml
file is used to control Cassandra’s sensitivity of node failure detection.
?
Thank you so much for help.
Kind regards.
://vsedach.googlepages.com/HDY04.pdf
The phi value is the level of suspicion a server might be down.
phi_convict_threshold = suspicion level above which a server is marked down
On Mon, Aug 3, 2015 at 1:29 PM, Thouraya TH thouray...@gmail.com wrote:
Hi all,
Please, can you explain me
Hi all,
Please, is there Scientific Paper of Gossip Protocol (algorithm) used by
cassandra
i need a paper published in a conference or in a journal.
?
Thank you so much for help.
Kind Regards.
Hi all,
Please, is that possible to change this command:
nodetool getendpoints MyKeyspace MyTable text
10.147.243.4
10.147.243.5
to
nodetool getendpoints MyKeyspace MyTable text=Hello ?
is there a solution to get more details about mes rows ?
Thanks a lot.
Best Regards.
Please, what is the difference between 1) and 2)
http://pastie.org/private/ydziir2376ru58ywrjq
Bests.
2015-07-20 12:55 GMT+01:00 Thouraya TH thouray...@gmail.com:
Hi all,
Please, is that possible to change this command:
nodetool getendpoints MyKeyspace MyTable text
10.147.243.4
%
ownership indicates RF=2).
On Mon, Jul 20, 2015 at 10:38 AM, Thouraya TH thouray...@gmail.com
wrote:
Please, what is the difference between 1) and 2)
http://pastie.org/private/ydziir2376ru58ywrjq
Bests.
2015-07-20 12:55 GMT+01:00 Thouraya TH thouray...@gmail.com:
Hi all,
Please
Hi all,
I'm trying to set up this environnement:
i have two hosts A and B and 6 vms:
On Host 'A', i have three guests : x, y and z
On Host 'B' i have three guests : e, f and g
I have launched cassandra on all guests (seed node: x)
Now i'd like to start cassandra on the two Hosts A and B.
Hi all,
Please, is there someone who has tested this case.
Tracking changes of state of nodes.
Datacenter: 147
===
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- AddressLoad Tokens Owns (effective) Host
ID Rack
*UN*
Hello all,
Please, i try to start cassandra remotely but it didn't work. i don't find
cassandra process when using ps aux|grep cassandra
ssh -t root@g-8 -x sshpass -p 'ubuntu' ssh -t root@10.147.243.163 -o
StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -x
Hi all;
I have, yesterday, downloaded cassandra archive and unpack it. I have this
following structure:
https://www.dropbox.com/s/4s0xb1os3gi8dr6/cassandra.PNG?dl=0
I have change some configs in the yaml (listen_address, seeds,
rpc_address).
My question: how the binary ‘cassandra’ will
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