Proxied hosts randomly roving.

[kofeyh]

I have a weird issue, well two, within Zabbix 1.8.5.

I have a set of (active) hosts for various sites, sitting behind proxies. I recently had to rebuild our environment (long story short, db died due to a disk issue) and i've had to re-constitute the discovery rules.

The first issue is that discovery rules no longer seem to send email. At all. Actions (such as triggered events) email just fine. That's not really a huge concern, it's just a little frustrating (but it leads into the next issue).

The second, which is very frustrating is that hosts periodically (randomly) change their associated proxy. Because the email from discovery actions is not sending, I can't see what is happening.

But the end result is that hosta.domaina.local, monitored via proxya.domaina.local, suddenly shifts to proxyb.domainb.local, however it's not consistant across all hosts. Of course when the proxy changes theirs an associated blast of emails as hosts suddenly appear "down" when in fact they are up.

Has anyone seen this "roving" proxy issue, or has suggestions as to how that might happen?

[kofeyh]

To answer my own question, it may be a side effect of discovery of agents when no proxy is defined as part of the rule.

In the past I had a single rule that would 'add' a host if it had a linux/ windows zabbix agent (i.e. following the boilerplate action bundled with Aabbix).

I then had additional (specific) rules that would group based on proxy/ ip range. This made the rules a lot simpler as one would add the client, the others would define it's proxy, which host group to add, etc (the zabbix server and DB are located in a DMZ).

It is as though Zabbix randomly chooses a proxy and or updates an existing hosts proxy to a random one, if there is no proxy defined in a discovery action, even if there are additional rules that define proxy, host group, etc.

I'm still not seeing any emails from discovery actions either. All in all 1.8.5 has created a whole bunch of new issues. I see 1.8.6 has a laundry list of fixes so will see if things have stabilised by then before raising a bug report.