Re: LVS backup router not taking role
Tapan Kumar Thapa <[email protected]> Wed, 18 Jan 2012 21:46:38 +0530
| Newsgroups | gmane.linux.redhat.piranha |
|---|---|
| Message-ID | <[email protected]> |
--===============4716386882490822025== Content-Transfer-Encoding: 7bit Content-Type: multipart/alternative; boundary=Apple-Mail-1-703859298 --Apple-Mail-1-703859298 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Can you please post your complete lvs.cfg? Sent from my iPhone Regards Tapan Kumar Thapa Manager-Tech Support HT Mobile Solutions Limited Mob-919871701375 On Jan 18, 2012, at 9:28 PM, Khapare Joshi <[email protected]> wrote: >=20 >=20 > On Wed, Jan 18, 2012 at 1:59 PM, Ranjith Rajaram <[email protected]> wro= te: >=20 >=20 > On 01/18/2012 07:22 PM, Khapare Joshi wrote: >>=20 >> Hi, all, >>=20 >> first time poster. I recently deployed lvs (primary and backup) with pira= nh and ran into few issues. I turned off the primary lvs to see backup lvs w= ill take over. However it does not take over right a way seem require restar= t pulse. How does this fail over works if primary goes down ? should not thi= s be happen right a way if primary lvs goes down ? > If primary goes, secondary has to take it over >=20 > It depends on deadtime >=20 > deadtime =3D n > Length of time before a node is declared dead and IP takeove= r occurs. >=20 > lvs.cf needs to be checked together with system configuration. Look at /v= ar/log/messages >=20 >=20 >=20 > I configured these parameter as this : > Heartbeat interval (seconds): =09 > Assume dead after (seconds): =09 > Heartbeat runs on port: =09 > Monitor NIC links for failures:=09 > Syncdaemon:=09 >=20 > and copied lvs.cf to redudant server as well.=20 >=20 >>=20 >> And I have four real server- and it sees if one goes down whole system is= unavailable (httpd service). Then I restart pulse and get the httpd servic= e. I do not think this is right. could be please guide me in right direction= to make reliable. >>=20 >=20 > Do you have separate boxes for LVS directors and real server's ? [Are you r= unning pulse on any of the two real server's ?] >=20 > I have two servers for lvs i.e lvs1 lvs2 and configured using piranha tool= . I started pulse on these two machines. Rest of other four server I only st= arted httpd not the pulse =20 >=20 > check the output of ipvsadm -L -n from the active lvs server [paste it her= e] >=20 >=20 >> PS: I use direct routing and have=20 >>=20 >> net.ipv4.conf.lo.arp_ignore =3D 1 >> net.ipv4.conf.lo.arp_announce =3D 2 >>=20 >> in /etc/sysctl.conf >>=20 >> sorry for too many question. >>=20 >> Thanks >>=20 >> _______________________________________________ >> Piranha-list mailing list >> [email protected] >> https://www.redhat.com/mailman/listinfo/piranha-list >=20 >=20 > _______________________________________________ > Piranha-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/piranha-list >=20 > _______________________________________________ > Piranha-list mailing list > [email protected] > https://www.redhat.com/mailman/listinfo/piranha-list --Apple-Mail-1-703859298 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8 <html><body bgcolor="#FFFFFF"><div>Can you please post your complete lvs.cfg?<br><br>Sent from my iPhone<div><br></div><div>Regards<br><div>Tapan Kumar Thapa</div><div>Manager-Tech Support</div><div>HT Mobile Solutions Limited</div></div><div>Mob-919871701375</div></div><div><br>On Jan 18, 2012, at 9:28 PM, Khapare Joshi <<a href="mailto:[email protected]">[email protected]</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><br><br><div class="gmail_quote">On Wed, Jan 18, 2012 at 1:59 PM, Ranjith Rajaram <span dir="ltr"><<a href="mailto:[email protected]"><a href="mailto:[email protected]">[email protected]</a></a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> <u></u> <div bgcolor="#ffffff" text="#000000"><div class="im"> <br> <br> On 01/18/2012 07:22 PM, Khapare Joshi wrote: <blockquote type="cite"> Hi, all,<br> <br> first time poster. I recently deployed lvs (primary and backup) with piranh and ran into few issues. I turned off the primary lvs to see backup lvs will take over. However it does not take over right a way seem require restart pulse. How does this fail over works if primary goes down ? should not this be happen right a way if primary lvs goes down ?<br> </blockquote></div> If primary goes, secondary has to take it over<br> <br> It depends on deadtime<br> <br> deadtime = n<br> Length of time before a node is declared dead and IP takeover occurs.<br> <br> <a href="http://lvs.cf" target="_blank">lvs.cf</a> needs to be checked together with system configuration. Look at /var/log/messages<div class="im"><br> <br> <br> I configured these parameter as this :<br></div></div></blockquote><div><table><tbody><tr><td>Heartbeat interval (seconds):</td> <td><input name="hb_interval" size="5" value="2" type="TEXT"> </td> </tr> <tr> <td>Assume dead after (seconds):</td> <td><input name="dead_after" size="5" value="10" type="TEXT"> </td> </tr> <tr> <td>Heartbeat runs on port:</td> <td><input name="hb_port" size="5" value="539" type="TEXT"> </td> </tr> <tr> <td>Monitor NIC links for failures:</td> <td><input name="monitor_links" checked="" type="checkbox"> </td> </tr> <tr> <td>Syncdaemon:</td> <td><input name="syncdaemon" checked="" type="checkbox"></td></tr></tbody></table><br>and copied <a href="http://lvs.cf">lvs.cf</a> to redudant server as well. <br></div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"> <div bgcolor="#ffffff" text="#000000"><div class="im"> <br> <blockquote type="cite"> <br> And I have four real server- and it sees if one goes down whole system is unavailable (httpd service). Then I restart pulse and get the httpd service. I do not think this is right. could be please guide me in right direction to make reliable.<br> <br> </blockquote> <br></div> Do you have separate boxes for LVS directors and real server's ? [Are you running pulse on any of the two real server's ?]<br></div></blockquote><div><br>I have two servers for lvs i.e lvs1 lvs2 and configured using piranha tool. I started pulse on these two machines. Rest of other four server I only started httpd not the pulse <br> </div><blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div bgcolor="#ffffff" text="#000000"> <br> check the output of ipvsadm -L -n from the active lvs server [paste it here]<br> <br> <br> <blockquote type="cite"><div class="im">PS: I use direct routing and have <br> <br> net.ipv4.conf.lo.arp_ignore = 1<br> net.ipv4.conf.lo.arp_announce = 2<br> <br> in /etc/sysctl.conf<br> <br> sorry for too many question.<br> <br> Thanks </div><pre><fieldset></fieldset> _______________________________________________ Piranha-list mailing list <a href="mailto:[email protected]" target="_blank"><a href="mailto:[email protected]">[email protected]</a></a> <a href="https://www.redhat.com/mailman/listinfo/piranha-list" target="_blank"><a href="https://www.redhat.com/mailman/listinfo/piranha-list">https://www.redhat.com/mailman/listinfo/piranha-list</a></a></pre> </blockquote> <br> <pre cols="72"></pre> </div> <br>_______________________________________________<br> Piranha-list mailing list<br> <a href="mailto:[email protected]"><a href="mailto:[email protected]">[email protected]</a></a><br> <a href="https://www.redhat.com/mailman/listinfo/piranha-list" target="_blank"><a href="https://www.redhat.com/mailman/listinfo/piranha-list">https://www.redhat.com/mailman/listinfo/piranha-list</a></a><br></blockquote></div><br> </div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Piranha-list mailing list</span><br><span><a href="mailto:[email protected]">[email protected]</a></span><br><span><a href="https://www.redhat.com/mailman/listinfo/piranha-list">https://www.redhat.com/mailman/listinfo/piranha-list</a></span></div></blockquote></body></html> --Apple-Mail-1-703859298-- --===============4716386882490822025== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Piranha-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/piranha-list --===============4716386882490822025==--