Ping only - poller service

Help
1

Hi,

when I try to add hosts (via IP) to Ping only - discovery not work:
/opt/librenms/discovery.php 56 2018-05-09 11:35:22 - 0 devices discovered in 0.000 secs
./poller.php -h 56
LibreNMS Poller
Starting polling run:

Device ID: 56
OS: generic

Polled in 1.011 seconds
UPDATED!

Start Alerts

End Alerts

SNMP [0/0.00s]: Get[0/0.00s] Getnext[0/0.00s] Walk[0/0.00s]
MySQL [17/0.01s]: Cell[4/0.00s] Row[0/-0.00s] Rows[7/0.01s] Column[2/0.00s] Update[2/0.00s] Insert[2/0.00s] Delete[0/0.00s]
RRD [4/0.00s]: Update[2/0.00s] Create [0/0.00s] Other[2/0.00s]

In Front - no data for device:
ICMP Response - Error Drawing Graph

ping and fping from poller and web front interface working OK.
VALIDATE:

Component Version
LibreNMS 1.39-28-g5273b29
DB Schema 249
PHP 7.0.28-0ubuntu0.16.04.1
MySQL 5.7.21-20-log
RRDTool 1.5.5
SNMP NET-SNMP 5.7.3

====================================

[OK] Composer Version: 1.6.5
[OK] Dependencies up-to-date.
[OK] Database connection successful
[OK] Database schema correct
[WARN] Some devices have not been polled in the last 5 minutes. You may have performance issues.
[FIX] Check your poll log and see: http://docs.librenms.org/Support/Performance/
Devices:
<all_ping_only_devices>

I use this configuration:
https://docs.librenms.org/#Extensions/Poller-Service/

2

This is my problem: [SOLVED] RRD files no longer created on device rrd folder
But how to solve it now?

3

The Poller service is not recommend for use.

4

Is depricated or no longer support?
How to migrate from poller service into “normal” polling service. I like poller service because is multi thread and fast. Solution with crons needs a lot of CPU because all polling tasks starts in the same moment.