I have been playing with this for a while, and managed to get an external
client node get into the topology, but it failed to communicate to the cluster.
Some points:1. Used TcpDiscoveryKubernetesIpFinder for sever nodes
2. Exposed pods via NodePort on custom ports (higher than 30000); more flexible
than hostNetwork = True
3. Created an address resolver for finding and communication SPIs, so that pods
addresses are conveyed to the external client.4. Used TcpDiscoveryVmIpFinder
for the client to successfully join the topology.
Unfortunately, TcpCommunicationSPI fails to connect to the server nodes. The
client has all addresses of the ClusterNode it attempts to connect to,
including internal pods' IP, 127.0.0.1, 0:0:0:0:0:0:0:0 and external IP, but
fails to reach the external IP from the list (see
TcpCommunicationSPI.createTcpClient). Having ClusterNode expose only the
address that was registered by the address resolver might fix it (haven't
checked yet) -- anyway, I think the client should not be provided with and
communicate via internal addresses iff external addresses are provided, should
it?
-- Roman
On Thursday, April 5, 2018, 3:33:10 p.m. GMT+9, sid_human
<siddarth.sre...@here.com> wrote:
Hi
I had recently come across this similar issue. I have multiple ignite server
pods up in a cluster and running in 3 - 4 nodes. At the same time, I have
ignite clients that can connect and work perfectly fine if they are running
as pods in these nodes.
I tried to implement an external client connecting to the ignite server pods
cluster but no avail. I have followed through the readme.io pages of
kubernetes discovery. Here are the issues I had confronted:
1) Setting hostNetwork = True in the yaml configuration of ignite pods is a
network issue because running multiple containers on a node and each
container trying to host the port would send an error. So, I tried running
one container - one node.
2) I have added a comment IGNITE-4161
<https://issues.apache.org/jira/browse/IGNITE-4161> with the exact client
configurations which seem to retrieve the server pods IP addresses. But no
connection is made.
I'm afraid no one has tried this before successfully and no development on
external clients are made as someone had posted in the same Jira- issue.
Thank you.
--
Sent from: http://apache-ignite-users.70518.x6.nabble.com/
