Among the hosts in a cluster? It depends on how much data you're trying to
read and write. In general, you're going to want a lot more bandwidth
among hosts in the cluster than you have external-facing. Otherwise things
like repairs and bootstrapping new nodes can get slow/difficult. To put it
Hello,
What is the general network throughput (mb/s) requirement for Cassandra?
Thanks in advance for your advise,
Justin
Simon,Trace would be significant burden on the cluster and it has to be on all
the time. I am trying to find a way to know when a row is written on demand
basis, is there a way to determine that? Naidu Saladi
On Tuesday, July 10, 2018 2:24 AM, Simon Fontana Oscarsson
wrote:
Have
Thanks Michael, While I agree with the advantage of symlinks , I am worried for
future upgrades.
My concern here is how to unlink the Cassandra binaries like nodetool,cassandra
,cqlsh etc after migrating to tar gz installation.
Thanks,
> On Jul 10, 2018, at 5:46 AM, Michael Shuler wrote:
>
Alain,Thanks for the response and I completely agree with you about your
approach but there is a small caveat, we have another DC in Europe, right now
this keyspace is not replicating there but eventually will be added. EU DC has
significant latency of 200 ms RTT, so going with EACH_QUORUM
On Tue, Jul 10, 2018 at 8:29 AM, Code Wiget wrote:
> Hi,
>
> I have been tasked with picking and setting up a database with the
> following characteristics:
>
>- Ultra-high availability - The real requirement is uptime - our whole
>platform becomes inaccessible without a “read” from the
Hi,
I have been tasked with picking and setting up a database with the following
characteristics:
• Ultra-high availability - The real requirement is uptime - our whole platform
becomes inaccessible without a “read” from the database. We need the read to
authenticate users. Databases will
Thanks, checked the ticket which is about a client hostname verification,
but this is not an optimal solution for us; maintaining the allowed hosts
list is not convenient way, once new hosts added you have reissue a new
cert.and deploy it. What we are looking for is for example certificate
Hello,
I did not work with the 'jmx_exporter' in a production cluster, but for
datadog agent and other collectors I could work with, the number of metrics
being collected was a key point.
Cassandra exposes a lot of metrics and I saw datadog agents taking too much
CPU, I even saw Graphite servers
Hello,
I have multi DC (3 DC's) Cassandra cluster/ring - One of the application
> wrote a row to DC1(using Local Quorum) and within span of 50 ms, it tried
> to read same row from DC2 and could not find the row.
[...]
So how to determine when the row is actually written in each DC?
To me,
Hello,
It sounds like a client/coding issue. People are working with distinct
clients to connect to Cassandra. And it looks like there are not many
'spring-data-cassandra' users around ¯\_(ツ)_/¯.
You could try giving a try there see if you have more luck:
https://spring.io/questions.
C*heers,
On 07/10/2018 02:48 AM, rajasekhar kommineni wrote:
> Hi Rahul,
>
> The problem for removing the old links is Cassandra binaries are pointed
> from /usr//bin/, /usr//sbin etc ..
>
> $ which nodetool
> /usr/bin/nodetool
> $ which cqlsh
> /usr/bin/cqlsh
> $ which cassandra
> /usr/sbin/cassandra
Hi Rahul,
The problem for removing the old links is Cassandra binaries are pointed from
/usr//bin/, /usr//sbin etc ..
$ which nodetool
/usr/bin/nodetool
$ which cqlsh
/usr/bin/cqlsh
$ which cassandra
/usr/sbin/cassandra
$
Thanks,
> On Jul 10, 2018, at 12:28 AM, Rahul Singh
> wrote:
>
>
You may want to keep an eye on the following ticket:
https://issues.apache.org/jira/browse/CASSANDRA-13404
On 09.07.2018 17:12, Vitali Dyachuk wrote:
> Hi,
> There is a certificate validation based on the mutual CA this is a 1st
> factor, the 2nd factor could be checking the common name of the
Nice find, Ben. I added this to my list of c* monitoring tools.
--
Rahul Singh
rahul.si...@anant.us
Anant Corporation
On Jul 9, 2018, 8:20 PM -0500, rajpal reddy , wrote:
> Thanks Ben!. will look into it
> > On Jul 9, 2018, at 10:42 AM, Ben Bromhead wrote:
> >
> > Hi Rajpal
> >
> > I'd invite
That approach will work, however that may take a long time.
The important things that are unique to your cluster will be your configuration
files & your data /log directories.
The binaries can be placed on the same machines via tar installation. While
keeping the machines running on the old
Have you tried trace?
--
SIMON FONTANA OSCARSSON
Software Developer
Ericsson
Ölandsgatan 1
37133 Karlskrona, Sweden
simon.fontana.oscars...@ericsson.com
www.ericsson.com
On mån, 2018-07-09 at 19:30 +, Saladi Naidu wrote:
> Cassandra is an eventual consistent DB, how to find when a row is
17 matches
Mail list logo
