Issue after upgrading from node 1.24.x to 1.25.1

Hi All,

Just grabbed to newest docker image for cardano-node 1.25.1, started up the node and I see now a lot of error messages in the log which was not there before. They look like this:

cardano-node_1 | [9ad50f8a:cardano.node.LocalErrorPolicy:Error:546] [2021-02-03 14:59:13.52 UTC] IP LocalAddress “” ErrorPolicyUnhandledApplicationException (MuxError MuxBearerClosed “<socket: 36> closed when reading data, waiting on next header True”)

Anyone has any idea how to fix this?

Thanks in advance!

Is your node following chain tip correctly?

If so, its probably just a change to the way the logging is done (either this is a new log message or a change in the severity level which makes it visible) and can safely be ignored.

Many thanks for your feedback!
(I forgot to mention I am completely new to Cardano blockchain, but not new in general in this area)

Yes, my node is following the chain correctly, for example:

cardano-node_1 | [9ad50f8a:cardano.node.ChainDB:Notice:525] [2021-02-04 13:21:23.16 UTC] Chain extended, new tip: 5d35568b0cc93e8c3989b78aa7ee2aeff6fbfca0e1fddfcfb506ee5ba3b23e11 at slot 20878592

Do you maybe happen to know where can I set up these logging severity levels?

Also in this:
IP LocalAddress “”
→ Looks for me that my IP address is missing maybe from some config file, as it is empty between the “” sings.


The logging levels are in the config file. The minSeverity setting is probably what you want.