Hi all,<br><br>I see the following notification in the logfile:<br>plugin_notification_meta_free: n == NULL!<br>plugin_notification_meta_free: n == NULL!<br>.<br>.<br>plugin_notification_meta_free: n == NULL!<br>exec plugin: pipe failed: Too many open files<br>
.<br>.<br>exec plugin: pipe failed: Too many open files<br><br>After it:<br>Notification: severity = FAILURE, host = x01.switch, plugin = snmp, type = if_std_traffic, type_instance = FastEthernet0_37, message = x01.switch/snmp/if_std_traffic-FastEthernet0_37 has not been<br>
updated for 683 seconds.<br>.<br>.<br>.<br>Notification: severity = FAILURE, host = x02.switch, plugin = snmp,
type = if_std_traffic, type_instance = FastEthernet0_15, message =
x02.switch/snmp/if_std_traffic-FastEthernet0_15 has not been<br>
updated for 13421 seconds.<br><br><br>As I didn't notice it, there aren't data about interfaces of these host in this period.<br><br><br>Only the collectd restarting solved the problem.<br><br>Have you got any idea, why this problem was?<br>
<br><br>Thank you in advance.<br><br>