[Xymon] xymon hostdata module going rogue

[John Thurston]

On 8/28/2015 12:45 PM, John Thurston wrote:
> On 6/10/2015 9:01 AM, Scot Kreienkamp wrote:
>> Hi everyone,
>>
>> I have a xymon server running 4.3.21 that seems to be accumulating
>> processes like these:
>>
>> hobbit   28430  0.0  0.0      0     0 ?        Z    12:50   0:00
>> [xymond_hostdata] <defunct>
>>
>> hobbit   28435  0.0  0.0      0     0 ?        Z    12:50   0:00
>> [xymond_hostdata] <defunct>
>>
>> hobbit   28440  0.0  0.0      0     0 ?        Z    12:50   0:00
>> [xymond_hostdata] <defunct>
>>
>> hobbit   28444  0.0  0.0      0     0 ?        Z    12:50   0:00
>> [xymond_hostdata] <defunct>
>>
>> hobbit   28449  0.0  0.0      0     0 ?        Z    12:50   0:00
>> [xymond_hostdata] <defunct>
>>
>> hobbit   28452  0.0  0.0      0     0 ?        Z    12:50   0:00
>> [xymond_hostdata] <defunct>
>>
>> It seemed related to drop messages . . .
>
> Hey, I think I'm seeing the same thing on Solaris with 4.3.21
>
> I've ended up here after a customer let me know that email alerts were
> not working as expected. After a few hours of digging around, I decided
> that the alert daemon was failing to retrieve hostnames and failing
> miserably.
>
> Have other people seen this behavior?

I have duplicated this behavior on another xymon server on Solaris. It 
certainly looks like this behavior breaks the alert daemon. Fortunately, 
I "drop" hosts in batches so can restart Xymon at that time, but this is 
still pretty icky.

J.C., do you know if your patch made it into the code-base?

Has anyone else tested this patch? If so, on what operating systems?

-- 
    Do things because you should, not just because you can.

John Thurston    907-465-8591
John.Thurston at alaska.gov
Enterprise Technology Services
Department of Administration
State of Alaska