Getting Error as "Missing the operation node"

[raman-in]

I am new to the libyang usage.
I am having below xml data which i need to set for o-ran-fm.yang using sysrepocfg command as mentioned below:

oran_fm.xml:

<active-alarm-list xmlns="urn:o-ran:fm:1.0">
  <active-alarms>
   <fault-id>1</fault-id>
   <fault-source>Network Element X</fault-source>
    <affected-objects>
      <name>Radio Unit</name>
    </affected-objects>
    <fault-severity>MAJOR</fault-severity>
    <is-cleared>true</is-cleared>
    <fault-text>Equipment Power supply</fault-text>
    <event-time>2021-09-27T18:05:26Z</event-time>
  </active-alarms>
</active-alarm-list>

> sysrepocfg --edit=oran_fm.xml --format=xml --datastore=running --module=o-ran-fm -v3
[INF] Connection 2 created.
[INF] Session 2 (user "root", CID 2) created.
libyang error: Unexpected data state node "active-alarm-list" found. (Schema location "/o-ran-fm:active-alarm-list", line number 2.)
sysrepocfg error: Data parsing failed

--> Not sure about this error 'Unexpected data state node'

3. When i try to run through yanglint in libyang i got below output.
> data -t reply /home/oran_fm_copy.xml
libyang[0]: Missing the operation node. (path: Line number 14.)

--> But there is no "operation" node available in "o-ran-fm.yang" file.

Kindly help me on this issue.

[michalvasko]

You obviously want to "set" state data, which is not possible, you are trying to add them into the running datastore but they can only be in the operational datastore. Here you can learn how to populate the operational datastore with some data.

[raman-in]

Hi,
How you able to say that this can be only in operational datastore[Any keywords to identify that it goes to oper datastore??]. Because i thought this "oran_fm.xml" data can also be set similar to "ssh_callhome.xml" using below command:
sysrepocfg --edit=ssh_callhome.xml --format=xml --datastore=running --module=ietf-netconf-server

So you meant to say this can be set only using "sr_set_item_str()" APIs through the code but not using any "sysrepocfg" CLI commands? Please clarify.

[jktjkt]

You'll have to review the YANG definition to learn about the difference between the data nodes and state nodes. The error message means that /o-ran-fm:active-alarm-list is not a data node, and as such it cannot be set like that. You might want to re-read the sysrepo's documentation which explains how these YANG-level concepts map to sysrepo functionality.

[raman-in]

ok thanks for clarification as the leaf is marked as config false hence it is considered as operational data. I am able to set the data for these leaf through the code using operational data callback.