Hi Stefan,
Hi John,
thanks for your answers, this helps me a lot.
@John: you are right, EJB does not bring any advantage in this case. I
will change my classes to simple CDI.
I will write a short blog about this solution after I finished.
Best regards
Ralph
On 12.06.19 07:58, Stefan Miklos
Hi,
I am using JanusGraph along with Cassandra as the backend. I have created a
graph using JanusGraphFactory.open() method. I want to create one more
graph and traverse it. Can you please help me.
Regards,
Vinayak
Hi Ralph,
yes this is completely fine, even advisable. You can further extend
this idea to have sessions per keyspace for example if you really
insist, and it could be injectable based on some qualifier ... thats
up to you.
On Wed, 12 Jun 2019 at 11:31, John Sanda wrote:
>
> Hi Ralph,
>
> A sess
(dropped dev@ x-post; user@ was correct)
Possibly #12765, fixed in 2.1.17. Wouldn't hurt to update to latest 2.1.21.
https://issues.apache.org/jira/browse/CASSANDRA-12765
https://github.com/apache/cassandra/blob/cassandra-2.1/CHANGES.txt#L1-L36
Michael
On 6/11/19 9:58 PM, Laxmikant Upadhyay wr
Does range query ignore purgable tombstone (which crossed grace period) in
some cases?
On Tue, Jun 11, 2019, 2:56 PM Laxmikant Upadhyay
wrote:
> In a 3 node cassandra 2.1.16 cluster where, one node has old mutation and
> two nodes have evict-able (crossed gc grace period) tombstone produced by
>
Hi Ralph,
A session is intended to be a long-lived, i.e., application-scoped object.
You only need one session per cluster. I think what you are doing with
the @Singleton is fine. In my opinion though, EJB really does not offer
much value when working with Cassandra. I would be inclined to just us
Hi,
I have a question concerning the Cassandra DataStax Java Driver in
combination with Java EE and EJBs.
I have implemented a Rest Service API based on Java EE8. In my
application I have for example a jax-rs rest resource to write data into
cassandra cluster. My first approach was to create
We had a three-DC (asia-tokyo/europe/us) cassandra 2.2.13 cluster, AWS, IPV6
Needed to scale out the asia datacenter, which was 5 nodes, europe and us
were 25 nodes
We were running into bootstrapping issues where the new node failed to
bootstrap/stream, it failed with
"java.lang.RuntimeException
In a 3 node cassandra 2.1.16 cluster where, one node has old mutation and
two nodes have evict-able (crossed gc grace period) tombstone produced by
TTL. A read range query with local quorum return the old mutation as
result. However expected result should be empty. Next time running the same
query
