Controller Ping may fail on host with multiple ip addresses
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Key: SEQUOIA-1101
URL: https://forge.continuent.org/jira/browse/SEQUOIA-1101
Project: Sequoia
Type: Bug
Components: JDBC Driver
Versions: Sequoia 2.10.8
Environment: I have sequoia installed on a host h1 with two ip addresses ip1
and ip2.
On this host its address is ip1 (pint h1 returns ip1)
I installed a client on another host h2. On h2 if I make ping h1 it returns
ip2.
Reporter: xavier roques
I can connect to sequoia without any problem but all the ping failed
with the following error:
I got the following
- ERROR: Unknown controller /10.1.19.5:9001 responded to ping!
(list={vinvmdbserver/10.1.13.170:9001=org.continuent.sequoia.driver.Wa
tc
[EMAIL PROTECTED])
So after controllerTimeoutInMs=25S, I'm disconnected from the host h1.
If I connect by using the ip address ip1 instead of the hostname all
is ok.
=======================
A possible solution
=======================
I checked the code and the identification of the responding controller is made
thanks to its ip address.
Unfortunately, on some networks configuration with NAT ... this protocol will
not work.
A solution is that the ControllerPingSender sends the version and a randomly
generated UUID to the controller.
The controller will respond by sending back the version and the UUID.
So the controller will be identified thanks to its UUID and no more thanks to
its ip address.
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