Hello,
Is there a better way to monitor for Cassandra nodes going Down than
querying via JMX for a condition like FailureDetector.DownEndpointCount > 0?
The problem for us is when any node is decommissioned, it affects the
DownEndpointCount for another ~3 days (the famous 72 hours of gossip).
Is
Hi,
Not sure if StorageService should be accessed, but you can check node
movement here :
'org.apache.cassandra.db:type=StorageService/LeavingNodes',
'org.apache.cassandra.db:type=StorageService/LiveNodes',
'org.apache.cassandra.db:type=StorageService/UnreachableNodes',
'org.apache.cassandra.db:ty
On Fri, Jan 19, 2018 at 11:17 AM, Nicolas Guyomar wrote:
> Hi,
>
> Not sure if StorageService should be accessed, but you can check node
> movement here :
> 'org.apache.cassandra.db:type=StorageService/LeavingNodes',
> 'org.apache.cassandra.db:type=StorageService/LiveNodes',
> 'org.apache.cassand
Hello,
For an 8-node Cassandra 2.2.11 cluster which is spread over two
datacenters, I am looking to change from using private IP addresses to the
combination of private and public IP addresses and interfaces. The cluster
uses the GossipingPropertyFileSnitch.
The aim is to end up with each peer be
I have continued the upgrade of the cluster using the default protocol
setting and after upgrading all nodes there were no problems switching
back to "TLSv1.2". But I will try to reproduce the problem using a ccm
cluster, I think that should be relatively easy, and when can try the
-Djavax.net
Hi Oleksandr,
Here's the code I use, hope it helps:
ownership = jolokia_read("org.apache.cassandra.db:type=StorageService",
"Ownership")
unreachable =
jolokia_read("org.apache.cassandra.db:type=StorageService",
"UnreachableNodes")
ownership_by_ip = {}
for nodeinfo, ownership_ratio
