Hi all,
We were previously using RHEL for our Flink machines. I'm currently working on
moving them over to Ubuntu. When I start the task manager, it fails to connect
to the job manager with the following message -
2020-01-16 10:54:42,777 INFO
org.apache.flink.runtime.util.LeaderRetrievalUtils - Trying to
select the network interface and address to use by connecting to the leading
JobManager.
2020-01-16 10:54:42,778 INFO
org.apache.flink.runtime.util.LeaderRetrievalUtils - TaskManager
will try to connect for 10000 milliseconds before falling back to heuristics
2020-01-16 10:54:52,780 WARN org.apache.flink.runtime.net.ConnectionUtils
- Could not find any IPv4 address that is not loopback or
link-local. Using localhost address.
The network interface on the machine looks like this -
ens5: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 9001
inet 10.16.75.30 netmask 255.255.255.128 broadcast 10.16.75.127
ether 02:f1:8b:34:75:51 txqueuelen 1000 (Ethernet)
RX packets 69370 bytes 80369110 (80.3 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 28787 bytes 2898540 (2.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
loop txqueuelen 1000 (Local Loopback)
RX packets 9562 bytes 1596138 (1.5 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 9562 bytes 1596138 (1.5 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
Note: On RHEL, the primary network interface was eth0. Could this be the issue?
Here's the full task manager log - https://paste.ubuntu.com/p/vgh96FHzRq/
Thanks
Harshith
