Ldapjs keep showing in logs , can someone let me know what it does?

Running LDAP in debug log mode gives me those outputs in the console . This keep running and the only thing change is the “ldap_id” that it goes ++ .
Background sync is set to 1 second that’s why it prob runs every second .

Is this normal ?
What exactly does it do ?

Feb 04 13:44:11 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“101__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:11.860Z”,“v”:0}

Feb 04 13:44:13 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“102__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:13.084Z”,“v”:0}

Feb 04 13:44:14 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“103__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:14.303Z”,“v”:0}

Feb 04 13:44:15 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“104__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:15.509Z”,“v”:0}
Feb 04 13:44:16 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“105__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:16.716Z”,“v”:0}

Feb 04 13:44:17 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“106__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:17.933Z”,“v”:0}

Feb 04 13:44:19 aaa rocketchat-server.rocketchat-server[31062]: {“name”:“ldapjs”,“component”:“client”,“hostname”:“aaa”,“pid”:31141,“clazz”:“Client”,“ldap_id”:“107__ldap://IP”,“level”:20,“msg”:“connected after 1 attempt(s)”,“time”:“2021-02-04T13:44:19.141Z”,“v”:0}