Lock and unlock from netconf client

Core Engine and APIs
1

Hi,

I am sending lock rpc message from the netconf client, and receive rpc-reply with OK.
lookking at the callbacks that were called by the confd, I see that both lock and then unlock callbacks were called:

TRACE New user session: 20 for user:admin ctx:netconf --> CONFD_OK
TRACE CALL db lock(running) --> CONFD_OK
TRACE CALL db unlock(running) --> CONFD_OK
TRACE Close user sess 20
–> CONFD_OK

can you explain why the unlock callback was called as well?
Is there a timer that I should configure in confd?
please see below the confd_netconf.log.

thanks
Inbal

28-Nov-2017::15:32:38.514 isim_Host1 confd[18131]: netconf id=20 new ssh
session for user “admin” from 172.31.244.171
28-Nov-2017::15:32:38.673 isim_Host1 confd[18131]: netconf id=20 got rpc:
{urn:ietf:params:xml:ns:netconf:base:1.0}lock attrs: message-id=“urn:uuid:40b7f
329-cdcf-4cca-bdcb-a147308dcf3b”
28-Nov-2017::15:32:38.674 isim_Host1 confd[18131]: netconf id=20 lock tar
get=running attrs: message-id=“urn:uuid:40b7f329-cdcf-4cca-bdcb-a147308dcf3b”
28-Nov-2017::15:32:38.676 isim_Host1 confd[18131]: netconf id=20 sending
rpc-reply, attrs: message-id=“urn:uuid:40b7f329-cdcf-4cca-bdcb-a147308dcf3b”
28-Nov-2017::15:32:38.785 isim_Host1 confd[18131]: netconf id=20 close-se
ssion attrs: message-id=“urn:uuid:3ce2a2a0-a099-4a09-adee-8da4cca70174”
28-Nov-2017::15:32:38.787 isim_Host1 confd[18131]: netconf id=20 sending
rpc-reply, attrs: message-id=“urn:uuid:3ce2a2a0-a099-4a09-adee-8da4cca70174”

2

The user session ends as indicated by the “TRACE Close user sess 20
–> CONFD_OK” message.

From RFC 6241:
The duration of the lock is defined as beginning when the lock is acquired and lasting until either the lock is released or the NETCONF session closes.

3

Hi Jonas,

One more related question.
While the DB is locked, if another client call lock() to Confd, does Confd retruns Error or calls the lock callback? I would like to know if the following scenario is valid: DB locked by NetConf client and lock callback is operating by confd due to other client request (or Confd takes care and blocks that)?
In a similar way, if a client calls commit while the DB is locked by other client, does Confd block it or Prepare/Commit callback will be issued and I should implement such block?

thanks
Inbal