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[Bug 1334815] pmcd pmda auto-restart fails if failure encountered duri

To: pcp@xxxxxxxxxxx
Subject: [Bug 1334815] pmcd pmda auto-restart fails if failure encountered during restart
From: bugzilla@xxxxxxxxxx
Date: Mon, 26 Sep 2016 06:11:36 +0000
Auto-submitted: auto-generated
Delivered-to: pcp@xxxxxxxxxxx
In-reply-to: <bug-1334815-355098@xxxxxxxxxxxxxxxxxxx>
References: <bug-1334815-355098@xxxxxxxxxxxxxxxxxxx>
https://bugzilla.redhat.com/show_bug.cgi?id=1334815

Nathan Scott <nathans@xxxxxxxxxx> changed:

           What    |Removed                     |Added
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           Assignee|nathans@xxxxxxxxxx          |fche@xxxxxxxxxx



--- Comment #6 from Nathan Scott <nathans@xxxxxxxxxx> ---
(In reply to Frank Ch. Eigler from comment #4)
> [...] pmie based
> machinery simply does not work remotely, and harms by misdirecting
> signals to the central pmcd.

(the local mode - i.e. "primary" - of pmie operation was introduced resolving
these aspects some time back)

>  Even if running running locally,
> imposes new load on its pmcd, and more so if one considers the
> other pmie default configuration.  One may quibble about the exact
> degrees of harm, but this is all indisputable (and observed).

FWLIW, measurements weren't presented to show this perceived load, and since no
measurable impact is realistically expected (the kernel metrics fetched with
the default pmie rules are a/ very few, b/ very cheap to sample and c/
infrequently sampled) ... there really is no expectation of problems from using
a local mode pmie to provide the on-going verification for missed PMDA restarts
too.


Back to the original problem - this BZ is not seen as a high priority (esp.
with pmie solution not being affected), and noone in the RH PCP team is
planning to hack on this corner case.  Hence, I'll reassign this one to you for
now, Frank, as the author of the affected code.  If this is not something you
plan to hack on, please mark this one as WONTFIX and we'll move on.  Thanks!

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