3:30 a.m.
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----- Original Message -----
From: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
To: "Gilad Chaplik" <gchaplik(a)redhat.com>
Cc: "Arthur Berezin" <aberezin(a)redhat.com>, "users"
<users(a)ovirt.org>
Sent: Monday, May 5, 2014 11:10:10 AM
Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health Check" -
feature pages
----- Original Message -----
> From: "Gilad Chaplik" <gchaplik(a)redhat.com>
> To: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
> Cc: "Arthur Berezin" <aberezin(a)redhat.com>, "users"
<users(a)ovirt.org>
> Sent: Monday, May 5, 2014 10:57:01 AM
> Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health Check" -
> feature pages
>
> ----- Original Message -----
> > From: "Yair Zaslavsky" <yzaslavs(a)redhat.com>
> > To: "Arthur Berezin" <aberezin(a)redhat.com>
> > Cc: "Gilad Chaplik" <gchaplik(a)redhat.com>, "users"
<users(a)ovirt.org>
> > Sent: Monday, May 5, 2014 6:39:02 AM
> > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health
Check" -
> > feature pages
> >
> >
> >
> > ----- Original Message -----
> > > From: "Arthur Berezin" <aberezin(a)redhat.com>
> > > To: "Gilad Chaplik" <gchaplik(a)redhat.com>
> > > Cc: "users" <users(a)ovirt.org>
> > > Sent: Sunday, May 4, 2014 5:35:59 PM
> > > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health
Check"
> > > -
> > > feature pages
> > >
> > > In this case engine periodically checks health of hosts' power
> > > management
> > > as
> > > HA relies on it.
> > >
> > > Arthur
> > >
> > > ----- Original Message -----
> > >
> > > > From: "Gilad Chaplik" <gchaplik(a)redhat.com>
> > > > To: "Eli Mesika" <emesika(a)redhat.com>
> > > > Cc: "users" <users(a)ovirt.org>, "Arthur
Berezin" <aberezin(a)redhat.com>
> > > > Sent: Sunday, May 4, 2014 5:26:45 PM
> > > > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Health
> > > > Check"
> > > > -
> > > > feature pages
> > >
> > > > Hi Eli,
> > >
> > > > Here is my comment :)
> > > > Why engine needs to send the status health check, isn't there any
3rd
> > > > parties
> > > > that does it, that we can integrate with?
> > > > If found, it probably has /less (known) bugs/more features/ and
it's
> > > > already
> > > > written, tested, documented, allows further integration and probably
> > > > deals
> > > > with scale.
> > >
> > > > btw, fixed some typos in your pages :-)
> > >
> > > > Thanks,
> > > > Gilad.
> >
> > Hi, what 3rd party for example do you refer to?
> > The PM code already exists at engine,
> > And you're also using quartz for scheduling.
> >
>
> Yair,
>
> You're are raising some good points, but imo the entire host monitoring
> (inc
> getVdsStats, etc.) should be externalized.
> There are 2 major issues that we still don't cover:
> - No HA for monitoring, who checks the hosts when the engine is down.
> - No scale - the engine is a bottle-neck in network and compute.
> Although the above is a huge arch change, we need to start somewhere, this
> feature sounds like a candidate to introduce it.
>
> About the examples:
>
http://sixrevisions.com/tools/10-free-server-network-monitoring-tools-tha...
> The main goal of the feature if my suggestion is taken, is to select to
> most
> appropriate one.
>
> Thanks,
> Gilad.
Well, Nagios is being considered to be used or used by Gluster guys.
However, it will still require (AFAIK) to code some nagios plugin to perfrom
the health check.
In addition, you will have to report somehow the state change to engine.
IMHO, this a bit of an overkill (look also at the time that the check is run
- once in an hour, so it can't be compared to getVmStats).
+1
These monitoring tools bring a lot of value, and there are some initial integrations that
we might want to look into[1][2].
But it's an overkill for this RFE - run "PM Check" periodically, in addition
to initial PM check at host setup stage.
[1] https://github.com/monitoring-ui-plugin/development
[2]
http://exchange.nagios.org/directory/Plugins/Operating-Systems/*-Virtual-...
>
> >
> > >
> > > > ----- Original Message -----
> > > > > From: "Eli Mesika" <emesika(a)redhat.com>
> > > > > To: "users" <users(a)ovirt.org>
> > > > > Cc: "Arthur Berezin" <aberezin(a)redhat.com>
> > > > > Sent: Sunday, May 4, 2014 12:18:47 PM
> > > > > Subject: [ovirt-users] oVirt 3.5 : "Power Management Health
Check"
> > > > > -
> > > > > feature pages
> > > > >
> > > > > Hi
> > > > >
> > > > > The following wiki pages were added to the "Power
Management Health
> > > > > Check"
> > > > > feature planned for oVirt 3.5
> > > > >
> > > > > http://www.ovirt.org/Features/PMHealthCheck
> > > > > http://www.ovirt.org/Features/Design/DetailedPMHealthCheck
> > > > >
> > > > > Your comments/questions are mostly welcomed.
> > > > >
> > > > > Thanks
> > > > > Eli Mesika
> > > > > _______________________________________________
> > > > > Users mailing list
> > > > > Users(a)ovirt.org
> > > > > http://lists.ovirt.org/mailman/listinfo/users
> > > > >
> > >
> > > _______________________________________________
> > > Users mailing list
> > > Users(a)ovirt.org
> > > http://lists.ovirt.org/mailman/listinfo/users
> > >
> >
>
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<html><body><div style=3D"font-family: times new roman, new york,
times, se=
rif; font-size: 12pt; color:
#000000"><br><div><br></div><hr
id=3D"zwchr"><=
blockquote style=3D"border-left:2px solid #1010FF;margin-left:5px;padding-l=
eft:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:non=
e;font-family:Helvetica,Arial,sans-serif;font-size:12pt;"><b>From:
</b>"Yai=
r Zaslavsky" &lt;yzaslavs(a)redhat.com&gt;<br><b>To:
</b>"Gilad Chaplik" <=
gchaplik(a)redhat.com&gt;<br><b>Cc: </b>"Arthur Berezin"
&lt;aberezin(a)redhat.=
com>, "users" &lt;users(a)ovirt.org&gt;<br><b>Sent:
</b>Monday, May 5, 201=
4 11:10:10 AM<br><b>Subject: </b>Re: [ovirt-users] oVirt 3.5 :
"Power Manag=
ement Health Check" -
feature &nbs=
p;pages<br><div><br></div><br><div><br></div>-----
Original Message -----<b=
r>> From: "Gilad Chaplik"
&lt;gchaplik(a)redhat.com&gt;<br>&gt; To: "Yair =
Zaslavsky" &lt;yzaslavs(a)redhat.com&gt;<br>&gt; Cc: "Arthur
Berezin" <abe=
rezin(a)redhat.com&gt;, "users"
&lt;users(a)ovirt.org&gt;<br>&gt; Sent: Monday,=
May 5, 2014 10:57:01 AM<br>> Subject: Re: [ovirt-users] oVirt 3.5 :
"Po=
wer Management Health Check" -
feature &=
nbsp; pages<br>> <br>> ----- Original Message
-----<br>> >=
From: "Yair Zaslavsky" &lt;yzaslavs(a)redhat.com&gt;<br>&gt;
> To: "Arthu=
r Berezin" &lt;aberezin(a)redhat.com&gt;<br>&gt; > Cc:
"Gilad Chaplik" <=
;gchaplik(a)redhat.com&gt;, "users"
&lt;users(a)ovirt.org&gt;<br>&gt; > Sent=
: Monday, May 5, 2014 6:39:02 AM<br>> > Subject: Re: [ovirt-users]
oV=
irt 3.5 : "Power Management Health Check" -<br>> >
feature  =
; pages<br>>
> <br>> > <br>&=
gt; > <br>> > ----- Original Message -----<br>>
> > From:=
"Arthur Berezin" &lt;aberezin(a)redhat.com&gt;<br>&gt; >
> To: "Gilad =
Chaplik" &lt;gchaplik(a)redhat.com&gt;<br>&gt; > > Cc:
"users" <user=
s(a)ovirt.org&gt;<br>&gt; > > Sent: Sunday, May 4, 2014 5:35:59
PM<br>&=
gt; > > Subject: Re: [ovirt-users] oVirt 3.5 : "Power Management Heal=
th Check" -<br>> > >
feature &n=
bsp; pages<br>> > > <br>> >
> In this case engine pe=
riodically checks health of hosts' power management<br>> >
> as<br=
> > > HA relies on it.<br>> >
> <br>> > > Arthu=
r<br>> >
> <br>> > > ----- Original Message
-----<br>>=
> > <br>> > > > From: "Gilad
Chaplik" <gchaplik@redha=
t.com><br>> > > > To: "Eli Mesika"
&lt;emesika(a)redhat.com&gt=
;<br>> > > > Cc: "users"
&lt;users(a)ovirt.org&gt;, "Arthur Berez=
in" &lt;aberezin(a)redhat.com&gt;<br>&gt; > > >
Sent: Sunday, May 4,=
2014 5:26:45 PM<br>> > > > Subject: Re: [ovirt-users]
oVirt 3.=
5 : "Power Management Health Check"<br>> > > >
-<br>> > &=
gt; > feature pages<br>> > > <br>> >
> > Hi Eli,<br=
> > > <br>> > >
> Here is my comment :)<br>> > =
> > Why
engine needs to send the status health check, isn't there any=
3rd<br>> > > > parties<br>> >
> > that does it, th=
at we can integrate with?<br>> > > > If found, it
probably has =
/less (known) bugs/more features/ and it's<br>> > >
> already<b=
r>> > > > written, tested, documented, allows further
integrati=
on and probably<br>> > > > deals<br>>
> > > with sc=
ale.<br>> > > <br>> > > >
btw, fixed some typos in you=
r pages :-)<br>> > > <br>> > >
> Thanks,<br>> > =
> > Gilad.<br>> > <br>> > Hi, what
3rd party for example =
do you refer to?<br>> > The PM code already exists at
engine,<br>>=
> And you're also using quartz for scheduling.<br>> >
<br>> <b=
r>> Yair,<br>> <br>> You're are raising some good
points, but imo =
the entire host monitoring (inc<br>> getVdsStats, etc.) should be extern=
alized.<br>> There are 2 major issues that we still don't
cover:<br>>=
- No HA for monitoring, who checks the hosts when the engine is down.<br>&=
gt; - No scale - the engine is a bottle-neck in network and compute.<br>>=
; Although the above is a huge arch change, we need to start somewhere, thi=
s<br>> feature sounds like a candidate to introduce it.<br>>
<br>>=
About the examples:<br>> http://sixrevisions.com/tools/10-free-server-n=
etwork-monitoring-tools-that-kick-ass/<br>> The main goal of the feature=
if my suggestion is taken, is to select to most<br>> appropriate one.<b=
r>> <br>> Thanks,<br>>
Gilad.<br><div><br></div><br>Well, Nagios i=
s being considered to be used or used by Gluster guys.<br>However, it will =
still require (AFAIK) to code some nagios plugin to perfrom the health chec=
k.<br>In addition, you will have to report somehow the state change to engi=
ne.<br>IMHO, this a bit of an overkill (look also at the time that the chec=
k is run - once in an hour, so it can't be compared to getVmStats).</blockq=
uote><div>+1</div><div>These monitoring tools bring a lot of value,
and the=
re are some initial integrations that we might want to look into[1][2].</di=
v><div>But it's an overkill for this RFE - run "PM Check"
periodically, in =
addition to initial PM check at host setup
stage.</div><div><br></div><div>=
[1] https://github.com/monitoring-ui-plugin/development</div&g...
nbsp;http://exchange.nagios.org/directory/Plugins/Operating-Systems/*-Virtu=
al-Environments/Others/check_rhev3/details</div><blockquote
style=3D"border=
-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-we=
ight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Ar=
ial,sans-serif;font-size:12pt;"><br><div><br></div><br>>
<br>> > <=
br>> > > <br>> > > > -----
Original Message -----<br>&=
gt; > > > > From: "Eli Mesika"
&lt;emesika(a)redhat.com&gt;<br>&g=
t; > > > > To: "users"
&lt;users(a)ovirt.org&gt;<br>&gt; > >=
; > > Cc: "Arthur Berezin"
&lt;aberezin(a)redhat.com&gt;<br>&gt; > &=
gt; > > Sent: Sunday, May 4, 2014 12:18:47 PM<br>> >
> > =
> Subject: [ovirt-users] oVirt 3.5 : "Power Management Health Check"
-<b=
r>> > > > > feature pages<br>> >
> > ><br>>=
; > > > > Hi<br>> > > >
><br>> > > >=
> The following wiki pages were added to the "Power Management Health<b=
r>> > > > > Check"<br>> >
> > > feature plann=
ed for oVirt 3.5<br>> > > > ><br>>
> > > > ht=
tp://www.ovirt.org/Features/PMHealthCheck<br>> > > >
> http:=
//www.ovirt.org/Features/Design/DetailedPMHealthCheck<br>> > >
>=
; ><br>> > > > > Your comments/questions
are mostly welco=
med.<br>> > > > ><br>> >
> > > Thanks<br>>=
> > > > Eli Mesika<br>> > >
> > _______________=
________________________________<br>> > > > >
Users mailing =
list<br>> > > > >
Users(a)ovirt.org<br>&gt; > > > >=
; http://lists.ovirt.org/mailman/listinfo/users<br>> > >
> >=
<br>> > > <br>> > >
_____________________________________=
__________<br>> > > Users mailing list<br>>
> > Users@ovi=
rt.org<br>> > >
http://lists.ovirt.org/mailman/listinfo/users<br>&=
gt; > > <br>> > <br>>
<br></blockquote><br></div></body></ht=
ml>
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