[mgmt-framework]: unable to parse schema file sonic-acl-deviation.yin

[nazariig]

Description

mgmt-framework pollutes syslog with the following error messages:

Jan 19 09:11:51.319994 sonic INFO mgmt-framework#supervisord: rest-server libyang[1]: Failed to open libyang extensions plugins directory "/usr/lib/x86_64-linux-gnu/libyang/extensions" (No such file or directory). 
Jan 19 09:11:51.320207 sonic INFO mgmt-framework#supervisord: rest-server libyang[1]: Failed to open libyang user types plugins directory "/usr/lib/x86_64-linux-gnu/libyang/user_types" (No such file or directory). 
Jan 19 09:11:51.320825 sonic INFO mgmt-framework#supervisord: rest-server libyang[0]: Invalid keyword "type" as a child to "annotation". (path: /) 
Jan 19 09:11:51.320992 sonic INFO mgmt-framework#supervisord: rest-server libyang[0]: Module "yang" parsing failed. 
Jan 19 09:11:51.321168 sonic INFO mgmt-framework#supervisord: rest-server libyang[0]: Invalid arguments (lys_parse_path()). 
Jan 19 09:11:51.321258 sonic INFO mgmt-framework#supervisord: rest-server ERROR: logging before flag.Parse: F0119 09:11:51.320612    2024 util.go:167] Unable to parse schema file sonic-acl-deviation.yin 
Jan 19 09:11:51.321314 sonic INFO mgmt-framework#supervisord: rest-server goroutine 1 [running, locked to thread]: 
Jan 19 09:11:51.321367 sonic INFO mgmt-framework#supervisord: rest-server github.com/golang/glog.stacks(0xc00000e000, 0x0, 0x0, 0x0) 
Jan 19 09:11:51.321437 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/gopkgs/src/github.com/golang/glog/glog.go:769 +0xf6 
Jan 19 09:11:51.321500 sonic INFO mgmt-framework#supervisord: rest-server github.com/golang/glog.(*loggingT).output(0x1d0b980, 0x3, 0xc0001b8160, 0x19fcde4, 0x7, 0xa7, 0x0) 
Jan 19 09:11:51.321563 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/gopkgs/src/github.com/golang/glog/glog.go:720 +0x406 
Jan 19 09:11:51.321649 sonic INFO mgmt-framework#supervisord: rest-server github.com/golang/glog.(*loggingT).printf(0x1d0b980, 0x3, 0xc0001b42c0, 0x33, 0x0, 0x0, 0x0) 
Jan 19 09:11:51.321649 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/gopkgs/src/github.com/golang/glog/glog.go:655 +0x207 
Jan 19 09:11:51.321676 sonic INFO mgmt-framework#supervisord: rest-server github.com/golang/glog.Fatalf(0xc0001b42c0, 0x33, 0x0, 0x0, 0x0) 
Jan 19 09:11:51.321705 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/gopkgs/src/github.com/golang/glog/glog.go:1148 +0x67 
Jan 19 09:11:51.321788 sonic INFO mgmt-framework#supervisord: rest-server cvl/internal/util.CVL_LEVEL_LOG(0x303, 0xc0001b42c0, 0x33, 0x0, 0x0, 0x0) 
Jan 19 09:11:51.321788 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/src/cvl/internal/util/util.go:167 +0x14d 
Jan 19 09:11:51.321788 sonic INFO mgmt-framework#supervisord: rest-server cvl.CVL_LOG(0x111c803, 0xc0001b42c0, 0x33, 0x0, 0x0, 0x0) 
Jan 19 09:11:51.321884 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/src/cvl/cvl.go:154 +0x5c 
Jan 19 09:11:51.321884 sonic INFO mgmt-framework#supervisord: rest-server cvl.Initialize(0x0) 
Jan 19 09:11:51.321970 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/src/cvl/cvl_api.go:139 +0x9fa 
Jan 19 09:11:51.321970 sonic INFO mgmt-framework#supervisord: rest-server cvl.init.0() 
Jan 19 09:11:51.321970 sonic INFO mgmt-framework#supervisord: rest-server #011/sonic/src/sonic-mgmt-framework/src/cvl/cvl.go:187 +0x436 
Jan 19 09:11:51.617508 sonic INFO ansible-command: Invoked with creates=None executable=None _uses_shell=False strip_empty_ends=True _raw_params=pgrep -f logrotate removes=None argv=None warn=True chdir=None stdin_add_newline=True stdin=None 
Jan 19 09:11:52.768789 sonic INFO ansible-extract_log: Invoked with start_string=start-LogAnalyzer-acl.2020-01-19-09:11:45 directory=/var/log target_filename=/tmp/syslog file_prefix=syslog 

Steps to reproduce the issue:

1. Install SONiC.HEAD.13-a29a2a49 [201911]
2. Deploy t1-lag topo

Describe the results you received:
mgmt-framework pollutes syslog with the error messages and makes a lot of tests fail

Describe the results you expected:
no error message are expected while operating in idle mode

Additional information you deem important (e.g. issue happens only occasionally):

**Output of `show version`:**

```
(paste your output here)
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```

[xinliu-seattle]

@ben to help to find the right contact for mgmt.-frame.

[dutta-partha]

This is due to the problem that path settings for libyang extension plugin is outdated with new libyang repo changes. Please assign this defect to me.

[liat-grozovik]

When should he expect a fix?

[lguohan]

@dutta-partha , do we have an eta for the fix?

[lguohan]

btw, is this the same problem? this is the latest master image.

admin@vlab-01:~$ show version

SONiC Software Version: SONiC.HEAD.243-51fa5e46
Distribution: Debian 9.12
Kernel: 4.9.0-9-2-amd64
Build commit: 51fa5e46
Build date: Tue Feb 11 11:53:09 UTC 2020
Built by: johnar@jenkins-worker-12

root@sonic:/# supervisorctl status
rest-server                      FATAL     Exited too quickly (process log may have details)
rsyslogd                         RUNNING   pid 35, uptime 0:58:45
start.sh                         EXITED    Feb 12 03:11 PM

[dutta-partha]

@lguohan I believe this should be the same problem. REST server will throw FATAL error if it can't parse the schema files as libyang could not load extension and user-type plugins.