------=_Part_418892_387399814.1399278624214 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit ----- Original Message -----
From: "Yair Zaslavsky" <yzaslavs@redhat.com> To: "Gilad Chaplik" <gchaplik@redhat.com> Cc: "Arthur Berezin" <aberezin@redhat.com>, "users" <users@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@redhat.com> To: "Yair Zaslavsky" <yzaslavs@redhat.com> Cc: "Arthur Berezin" <aberezin@redhat.com>, "users" <users@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@redhat.com> To: "Arthur Berezin" <aberezin@redhat.com> Cc: "Gilad Chaplik" <gchaplik@redhat.com>, "users" <users@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@redhat.com> To: "Gilad Chaplik" <gchaplik@redhat.com> Cc: "users" <users@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@redhat.com> To: "Eli Mesika" <emesika@redhat.com> Cc: "users" <users@ovirt.org>, "Arthur Berezin" <aberezin@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-that-k... 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-Env...
----- Original Message -----
From: "Eli Mesika" <emesika@redhat.com> To: "users" <users@ovirt.org> Cc: "Arthur Berezin" <aberezin@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@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
> > > 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" <emesika@redhat.com>= ;<br>> > > > Cc: "users" <users@ovirt.org>, "Arthur Berez= in" <aberezin@redhat.com><br>> > > > 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 =
------=_Part_418892_387399814.1399278624214 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable <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" <yzaslavs@redhat.com><br><b>To: </b>"Gilad Chaplik" <= gchaplik@redhat.com><br><b>Cc: </b>"Arthur Berezin" <aberezin@redhat.= com>, "users" <users@ovirt.org><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" <gchaplik@redhat.com><br>> To: "Yair = Zaslavsky" <yzaslavs@redhat.com><br>> Cc: "Arthur Berezin" <abe= rezin@redhat.com>, "users" <users@ovirt.org><br>> 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" <yzaslavs@redhat.com><br>> > To: "Arthu= r Berezin" <aberezin@redhat.com><br>> > Cc: "Gilad Chaplik" <= ;gchaplik@redhat.com>, "users" <users@ovirt.org><br>> > 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" <aberezin@redhat.com><br>> > > To: "Gilad = Chaplik" <gchaplik@redhat.com><br>> > > Cc: "users" <user= s@ovirt.org><br>> > > 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= 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><div>[2]&= 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" <emesika@redhat.com><br>&g= t; > > > > To: "users" <users@ovirt.org><br>> > >= ; > > Cc: "Arthur Berezin" <aberezin@redhat.com><br>> > &= 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@ovirt.org<br>> > > > >= ; 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> ------=_Part_418892_387399814.1399278624214--