lgalea at bluecatnetworks
Sep 18, 2002, 9:03 AM
Post #1 of 3
(345 views)
Permalink
|
This is a multi-part message in MIME format.
------_=_NextPart_001_01C25F2C.FFA752CB
Content-Type: text/plain;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
I have tried to tweak my HA config files in order to minimize the time
before failover occurs and I cannot seem to get it below about 15
secs...=20
It would be fine to increase the priority of the ha process in order to
prevent premature failover if I could get the time down to a couple
seconds.
Is there any way to achieve this?=20
=20
Thanks in advance
=20
Luke Galea=20
Software Development
BlueCat <http://www.bluecatnetworks.com/> Networks
905-762-5225
=20
------_=_NextPart_001_01C25F2C.FFA752CB
Content-Type: text/html;
charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
<html xmlns:o=3D"urn:schemas-microsoft-com:office:office" =
xmlns:w=3D"urn:schemas-microsoft-com:office:word" =
xmlns=3D"http://www.w3.org/TR/REC-html40">
<head>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Dus-ascii">
<meta name=3DProgId content=3DWord.Document>
<meta name=3DGenerator content=3D"Microsoft Word 10">
<meta name=3DOriginator content=3D"Microsoft Word 10">
<link rel=3DFile-List href=3D"cid:filelist.xml [at] 01C25F0B">
<!--[if gte mso 9]><xml>
<o:OfficeDocumentSettings>
<o:DoNotRelyOnCSS/>
</o:OfficeDocumentSettings>
</xml><![endif]--><!--[if gte mso 9]><xml>
<w:WordDocument>
<w:GrammarState>Clean</w:GrammarState>
<w:DocumentKind>DocumentEmail</w:DocumentKind>
<w:EnvelopeVis/>
<w:Compatibility>
<w:BreakWrappedTables/>
<w:SnapToGridInCell/>
<w:ApplyBreakingRules/>
<w:WrapTextWithPunct/>
<w:UseAsianBreakRules/>
<w:UseFELayout/>
</w:Compatibility>
<w:BrowserLevel>MicrosoftInternetExplorer4</w:BrowserLevel>
</w:WordDocument>
</xml><![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:SimSun;
panose-1:2 1 6 0 3 1 1 1 1 1;
mso-font-alt:\5B8B\4F53;
mso-font-charset:134;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 135135232 16 0 262145 0;}
@font-face
{font-family:"\@SimSun";
panose-1:2 1 6 0 3 1 1 1 1 1;
mso-font-charset:134;
mso-generic-font-family:auto;
mso-font-pitch:variable;
mso-font-signature:3 135135232 16 0 262145 0;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{mso-style-parent:"";
margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:SimSun;}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;
text-underline:single;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;
text-underline:single;}
p.MsoAutoSig, li.MsoAutoSig, div.MsoAutoSig
{margin:0cm;
margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:12.0pt;
font-family:"Times New Roman";
mso-fareast-font-family:SimSun;}
span.EmailStyle17
{mso-style-type:personal-compose;
mso-style-noshow:yes;
mso-ansi-font-size:10.0pt;
mso-bidi-font-size:10.0pt;
font-family:Arial;
mso-ascii-font-family:Arial;
mso-hansi-font-family:Arial;
mso-bidi-font-family:Arial;
color:windowtext;}
span.GramE
{mso-style-name:"";
mso-gram-e:yes;}
@page Section1
{size:612.0pt 792.0pt;
margin:72.0pt 90.0pt 72.0pt 90.0pt;
mso-header-margin:35.4pt;
mso-footer-margin:35.4pt;
mso-paper-source:0;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 10]>
<style>
/* Style Definitions */=20
table.MsoNormalTable
{mso-style-name:"Table Normal";
mso-tstyle-rowband-size:0;
mso-tstyle-colband-size:0;
mso-style-noshow:yes;
mso-style-parent:"";
mso-padding-alt:0cm 5.4pt 0cm 5.4pt;
mso-para-margin:0cm;
mso-para-margin-bottom:.0001pt;
mso-pagination:widow-orphan;
font-size:10.0pt;
font-family:"Times New Roman";}
</style>
<![endif]-->
</head>
<body lang=3DEN-US link=3Dblue vlink=3Dpurple =
style=3D'tab-interval:36.0pt'>
<div class=3DSection1>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>I have tried to tweak my HA config files in order to
minimize the time before failover occurs and I cannot seem to get it =
below
about 15 secs… <o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>It would be fine to increase the priority of <span
class=3DGramE>the ha</span> process in order to prevent premature =
failover if I
could get the time down to a couple =
seconds.<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Is there any way to achieve this? =
<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'>Thanks in advance<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D2 face=3DArial><span =
style=3D'font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=3DMsoAutoSig><font size=3D3 face=3DArial><span =
style=3D'font-size:12.0pt;
font-family:Arial;mso-no-proof:yes'>Luke Galea =
<o:p></o:p></span></font></p>
<p class=3DMsoAutoSig><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt;mso-no-proof:yes'>Software =
Development<o:p></o:p></span></font></p>
<p class=3DMsoAutoSig><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt;mso-no-proof:yes'><a =
href=3D"http://www.bluecatnetworks.com/">BlueCat
Networks</a><o:p></o:p></span></font></p>
<p class=3DMsoAutoSig><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt;mso-no-proof:yes'>905-762-5225<o:p></o:p></span></font></p>
<p class=3DMsoNormal><font size=3D3 face=3D"Times New Roman"><span =
style=3D'font-size:
12.0pt'><o:p> </o:p></span></font></p>
</div>
</body>
</html>
------_=_NextPart_001_01C25F2C.FFA752CB--
From Wallwork, Nathan" <nwallwo [at] pnm Wed Sep 18 17:27:03 2002 [5767]
From: Wallwork, Nathan" <nwallwo [at] pnm (Wallwork, Nathan)
Date: Wed, 18 Sep 2002 10:27:03 -0600 (MDT)
Subject: Heartbeats failover time
In-Reply-To: <5DEC3FFCDE2F7C4DA45433EE09A4F22C599FC7 [at] COLOSSUS>
Message-ID: <Pine.LNX.4.44.0209181020241.21333-100000 [at] test0>
On Wed, 18 Sep 2002, Luke Galea wrote:
> I have tried to tweak my HA config files in order to minimize the time
> before failover occurs and I cannot seem to get it below about 15
> secs...
> It would be fine to increase the priority of the ha process in order to
> prevent premature failover if I could get the time down to a couple
> seconds.
> Is there any way to achieve this?
When I was pushing the limits to see what I could get, I set
keepalive 1, deadtime 2, initdead 10, which gave me failover
times of about 8 seconds (I was counting dropped packets for
ongoing one second pings through the heartbeat nodes). I was
using ipfail and inducing a failure by blocking the pings
generated by one of the heartbeat nodes but not the other.
A downside to such a low value for deadtime would be the
potential to mark a node dead due to lost packets if you
get network congestion.
|
