<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> I agree – a restart will not disconnect any current connections. But, as the nanny processes are restarting you cannot get access to any of the sites. I know this is only 20-30 seconds, but in a production world this is not acceptable and would be deemed to risky.<o:p></o:p> <o:p> </o:p> There must be a fix out there for reloading this configuration?<o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: piranha-list-bounces@redhat.com [mailto:piranha-list-bounces@redhat.com] On Behalf Of rhurst@bidmc.harvard.edu Sent: 14 November 2007 17:43 To: piranha-list@redhat.com Subject: RE: Pulse Reload configuration problem<o:p></o:p> </div> <o:p> </o:p> Yes, we see that same behavior too. But, the Linux ipvs table does not get flushed on a pulse restart. So as long as your pulse configuration is correct, you can safely restart it, and all client connections will resume. Also make certain your backup pulse service is downed BEFORE restarting the primary pulse, so it won't failover -- it's an active-passive config, so you would LOSE the ipvs table by going over to the other server. Now if RHEL only included keepalived as part of piranha . . . I do wish that the nanny processes could be manually spawned, and at the very least, have some kind of command-line identifier so I know which is serving which, instead relying upon syslog messages. On Wed, 2007-11-14 at 15:08 +0000, <st1:PersonName w:st="on">Michael Geraghty</st1:PersonName> wrote: <o:p></o:p> Sorry – I meant ‘service pulse reload’ - this seems to work and re reads the lvs.cfg file as the messages file reads … Nov 14 14:45:45 lvsrt1 lvs[1243]: rereading configuration file Nov 14 14:45:45 lvsrt1 pulse: pulse -HUP succeeded But, the new configuration / nanny procs do not get started Only ‘service pulse restart’ works <o:p></o:p> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center> </div> </blockquote> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> From:piranha-list-bounces@redhat.com [mailto:piranha-list-bounces@redhat.com] On Behalf Of <st1:PersonName w:st="on">Michael Geraghty</st1:PersonName> Sent: 14 November 2007 14:59 To: Piranha clustering/HA technology Subject: RE: Pulse Reload configuration problem <o:p></o:p> </blockquote> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> I am just servicing web services – but just paranoid because these are production servers and am afraid that the others won’t come back online. Also, the documentation says the ‘service pulse restart’ reloads the configuration – so would prefer to use what it says on the tin <o:p></o:p> </blockquote> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center> </div> </blockquote> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> From:piranha-list-bounces@redhat.com [mailto:piranha-list-bounces@redhat.com] On Behalf Of rhurst@bidmc.harvard.edu Sent: 14 November 2007 14:56 To: piranha-list@redhat.com Subject: Re: Pulse Reload configuration problem <o:p></o:p> </blockquote> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> Just wondering, if you are only servicing web servers, why would restarting it be an issue? I have restarted pulse with other protocols, and it is quick enough to resume the session, i.e. the keepalive on ssh, telnet, and other IP connections. Once in a while (usually from a misconfiguration), you might lose client connection because of the timing. On Wed, 2007-11-14 at 14:32 +0000, <st1:PersonName w:st="on">Michael Geraghty</st1:PersonName> wrote: Hi I am running “ipvsadm-1.24-6” on Redhat 4/4 ES. I have the system configured using piranha and works very well apart from one thing .. The problem I am having is when I change the configuration when adding a new site/VIP – I have to restart all nanny procs. The command ‘service pulse restart’ will not work for me. I get the following in my messages file: rereading configuration file pulse: pulse -HUP succeeded But the new nanny processes do not start up. I also tried “kill -1 pid” – but no joy. The only thing that will work is a “service pulse restart” – which is not good as there are several web servers live. Any ideas or suggestions would be great Thanks Mick <o:p></o:p> <table class=MsoNormalTable border=0 cellpadding=0> <tr> <td bgcolor=white style='background:white;padding:0in 0in 0in 0in'> *********************************************************************************************** This email, its contents and any files attached are a confidential communication and are intended only for the named addressees indicated in the message. If you are not the named addressee or if you have received this email in error, you may not, without the consent of Cognotec, copy, use or rely on any information or attachments in any way. Please notify the sender by return email and delete it from your email system. Unless separately agreed, Cognotec does not accept any responsibility for the accuracy or completeness of the contents of this email or its attachments. Please note that any views, opinion or advice contained in this communication are those of the sending individual and not those of Cognotec and Cognotec shall have no liability whatsoever in relation to this communication (or its content) unless separately agreed. *********************************************************************************************** <o:p></o:p> </td> </tr> </table> <pre><o:p> </o:p></pre><pre> <o:p></o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>Piranha-list mailing list<o:p></o:p></pre><pre><a href="mailto:Piranha-list@redhat.com">Piranha-list@redhat.com</a><o:p></o:p></pre><pre><a href="https://www.redhat.com/mailman/listinfo/piranha-list">https://www.redhat.com/mailman/listinfo/piranha-list</a><o:p></o:p></pre></blockquote> <blockquote style='margin-top:5.0pt;margin-bottom:5.0pt' TYPE=CITE> <table class=MsoNormalTable border=0 cellpadding=0> <tr> <td bgcolor=white style='background:white;padding:.75pt .75pt .75pt .75pt'> *********************************************************************************************** This email, its contents and any files attached are a confidential communication and are intended only for the named addressees indicated in the message. If you are not the named addressee or if you have received this email in error, you may not, without the consent of Cognotec, copy, use or rely on any information or attachments in any way. Please notify the sender by return email and delete it from your email system. Unless separately agreed, Cognotec does not accept any responsibility for the accuracy or completeness of the contents of this email or its attachments. Please note that any views, opinion or advice contained in this communication are those of the sending individual and not those of Cognotec and Cognotec shall have no liability whatsoever in relation to this communication (or its content) unless separately agreed. ***********************************************************************************************<o:p></o:p> </td> </tr> </table> <o:p> </o:p> <table class=MsoNormalTable border=0 cellpadding=0> <tr> <td bgcolor=white style='background:white;padding:.75pt .75pt .75pt .75pt'> *********************************************************************************************** This email, its contents and any files attached are a confidential communication and are intended only for the named addressees indicated in the message. If you are not the named addressee or if you have received this email in error, you may not, without the consent of Cognotec, copy, use or rely on any information or attachments in any way. Please notify the sender by return email and delete it from your email system. Unless separately agreed, Cognotec does not accept any responsibility for the accuracy or completeness of the contents of this email or its attachments. Please note that any views, opinion or advice contained in this communication are those of the sending individual and not those of Cognotec and Cognotec shall have no liability whatsoever in relation to this communication (or its content) unless separately agreed. ***********************************************************************************************<o:p></o:p> </td> </tr> </table> <pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>Piranha-list mailing list<o:p></o:p></pre><pre><a href="mailto:Piranha-list@redhat.com">Piranha-list@redhat.com</a><o:p></o:p></pre><pre><a href="https://www.redhat.com/mailman/listinfo/piranha-list">https://www.redhat.com/mailman/listinfo/piranha-list</a><o:p></o:p></pre></blockquote> </div> </body> </html> <table><tr><td bgcolor=#ffffff> *********************************************************************************************** This email, its contents and any files attached are a confidential communication and are intended only for the named addressees indicated in the message. If you are not the named addressee or if you have received this email in error, you may not, without the consent of Cognotec, copy, use or rely on any information or attachments in any way. Please notify the sender by return email and delete it from your email system. Unless separately agreed, Cognotec does not accept any responsibility for the accuracy or completeness of the contents of this email or its attachments. Please note that any views, opinion or advice contained in this communication are those of the sending individual and not those of Cognotec and Cognotec shall have no liability whatsoever in relation to this communication (or its content) unless separately agreed. *********************************************************************************************** </td></tr></table>