[Xymon] Spurious purple messages

[Colin Coe]

OK, looking at this again.  The main view looks fine, but the 'conn'
test on every host is a yellow circle with a question mark (unknown)
in the snapshot report view since September 4, 2015 at 13:32:42.

September 4, 2015 at 13:32:41 and earlier look fine.

Thanks

On Sat, Sep 12, 2015 at 5:48 PM, Vernon Everett
<everett.vernon at gmail.com> wrote:
> Good to know it's not just me that fights with SELinux. :-)
>
> Now that it works, what does the snapshot report reveal at the time the
> purple alerts go out?
>
> Purples require a "no report" for 30 minutes to trigger.
> You might want to check all your logs at around 30-35 minutes before the
> emails.
>
>
>
>
> On 11 September 2015 at 18:13, Colin Coe <colin.coe at gmail.com> wrote:
>>
>> Almost...
>>
>> Turned out to be SELinux, my old nemesis.  :)
>>
>>
>>
>> On Tue, Sep 8, 2015 at 5:37 PM, Vernon Everett <everett.vernon at gmail.com>
>> wrote:
>> > That might be a permissions thing.
>> >
>> >
>> >
>> > On 8 September 2015 at 19:15, Colin Coe <colin.coe at gmail.com> wrote:
>> >>
>> >> Hi Vernon
>> >>
>> >> Thanks for the really good info.  The message serial numbers are
>> >> different every day but the messages are sent at the same time (13:45)
>> >> daily for all tests on all hosts.
>> >>
>> >> The network is not congested nor is the SAN under any kind of pressure.
>> >>
>> >> Interestingly, trying to do the snapshot report gave me "Cannot create
>> >> output directory".
>> >>
>> >> Thanks again
>> >>
>> >> CC
>> >>
>> >> On Tue, Sep 8, 2015 at 3:56 PM, Vernon Everett
>> >> <everett.vernon at gmail.com>
>> >> wrote:
>> >> > Hi Colin
>> >> >
>> >> > What do the client hosts share in common?
>> >> > I have seen in the past, a client was overloading their storage
>> >> > system,
>> >> > and
>> >> > were overflowing buffers and exceeding the storage array's ability to
>> >> > process IO requests. Of course this caused a general disk latency,
>> >> > which
>> >> > slowed things down to the point of a purple flood.
>> >> > Was no simple solution to that one, except buy more storage, which
>> >> > they
>> >> > did.
>> >> >
>> >> > Also, check the "serial numbers" on the messages. Is this a repeat of
>> >> > an
>> >> > older message - in which case Xymon might have something fishy going
>> >> > on,
>> >> > or
>> >> > are they new messages every day, as in it really thinks there is a
>> >> > problem.
>> >> >
>> >> > Xymon only updates pages every 2 and 5 minutes, depending on the page
>> >> > you
>> >> > are looking at. Meaning you could wait up to 7 minutes for the real
>> >> > status
>> >> > to appear.
>> >> > A purple takes 30 minutes to trigger.
>> >> > With some unfortunate, and highly improbable timing on whatever is
>> >> > triggering these events, it's possible you might not see the purple.
>> >> > Have you pulled up a "snapshot report" for the exact time of the
>> >> > messages?
>> >> >
>> >> > Something else unlikely, but possible, is the network.
>> >> > The conn test used ping, which is UDP
>> >> > The Xymon agent sends using TCP.
>> >> > Is there anything interesting happening on the network at the time?
>> >> >
>> >> > Regards
>> >> > Vernon
>> >> >
>> >> >
>> >> >
>> >> > On 8 September 2015 at 11:39, Colin Coe <colin.coe at gmail.com> wrote:
>> >> >>
>> >> >> Hi all
>> >> >>
>> >> >> Since Friday September 4, I've started receiving "stopped reporting
>> >> >> (PURPLE)" messages for all tests on all hosts from one of our Xymon
>> >> >> servers.
>> >> >>
>> >> >> The host status, as shown in the Main View, is green for all hosts
>> >> >> and
>> >> >> tests.  No purple at all.
>> >> >>
>> >> >> The "stopped reporting (PURPLE)" messages are being sent at the same
>> >> >> time every day, 1:45PM.
>> >> >>
>> >> >> Any advise on how I should track this down?
>> >> >>
>> >> >> Thanks
>> >> >> _______________________________________________
>> >> >> Xymon mailing list
>> >> >> Xymon at xymon.com
>> >> >> http://lists.xymon.com/mailman/listinfo/xymon
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > "Accept the challenges so that you can feel the exhilaration of
>> >> > victory"
>> >> > - General George Patton
>> >
>> >
>> >
>> >
>> > --
>> > "Accept the challenges so that you can feel the exhilaration of victory"
>> > - General George Patton
>
>
>
>
> --
> "Accept the challenges so that you can feel the exhilaration of victory"
> - General George Patton