How to debug/prevent "Internal Error: Internal error: failed to load AAA from CDB"

CDB and CDB API
1

In one of our setups, sometime

  • $CONFD_DIR/bin/confd -c ./confd.conf --ignore-initial-validation --addloadpath ./fxs --addloadpath ./clispec --start-phase0 runs successfully.
  • But confd --start-phase1 fails with failed to load AAA from CDB error. At that moment we generally recover from CDB backup files.

We tried to see the difference between non-working and working CDB files using --cdb-debug-dump option, and cannot see any difference in nacm database.

What should we look into to understand the issue?

2

The logs are the best place to start, but you probably know that. Is there anything more in the logs that would help?

3

Binary lines in confd error log

	
nonode@nohost�k$failed to load AAA ~p from CDB: ~p~nllldhttp://tail-f.com/ns/aaa/1.1daaajhhbadmatchd	not_foundl
                                                                                                                  hd
aaa_serverget_elemalhdfilekaaa_server.erlhdlineb<jhd
aaa_serverd	read_useralhdfilekaaa_server.erlhdlineb�jhd
aaa_serverd
read_usersalhdfilekaaa_server.erlhdlineb�jhd
aaa_serverd
read_usersalhdfilekaaa_server.erlhdlineb�jhd
]jhdserverread_aaaalhdfilekaaa_server.erlhdlineb
Rjhdserverread_aaaalhdfilekaaa_server.erlhdlineb
aaa_serverd-init_cdb/1-fun-3-alhdfilekaaa_server.erlhdlineb
                                                           �jhdlistsdfoldlalhdfilek	lists.erlhdlineb�jhd
aaa_serverinit_cdbalhdfilekaaa_server.erlhdlineb
                                                �jhd
gen_serverdinit_italhdfilekgen_server.erlhdlinebSjhproc_libdinit_p_do_applyalhdfilek
nonode@nohost�kinit:boot_msg: ~plk,Internal error: failed to load AAA from CDB      proc_lib.erlhdlinea�jjj�bWLA�hk1-May-2025::11:27:46.009hderrorgd

I could confirm tail-aaa.fxs (and hence http://tail-f.com/ns/aaa/1.1) exists and loaded into confd

<DEBUG> ... confd[5258]: - Loading file ./fxs/tailf-aaa.fxs

Other than this I did not find anything