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Re: [Quickfixj-users] Failover and Recovery
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From: Chris H. <chr...@ho...> - 2007-03-28 10:10:57
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<html><div style='background-color:'><P>I think you have to 'roll your own' solution, we have two current sessions, a primary and a backup , only one increments the sequence number (the primary) if that session dies the other which was just heart beating at this point becomes the primary and takes over using the sequence number last stored by the failed session in a central database, if the first session restarts it comes back in as a backup session until the new primary fails ... our side this involved a small amount of tweaking to session.java in the quickfixj libs.</P> <P>I'm sure there are other solutions ....<BR><BR></P> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #a0c6e5 2px solid; MARGIN-RIGHT: 0px"><FONT style="FONT-SIZE: 11px; FONT-FAMILY: tahoma,sans-serif"> <HR color=#a0c6e5 SIZE=1> From: <I>"Alex McGlashan" <ale...@eu...></I><BR>Reply-To: <I>qui...@li...</I><BR>To: <I><qui...@li...></I><BR>Subject: <I>[Quickfixj-users] Failover and Recovery</I><BR>Date: <I>Wed, 28 Mar 2007 10:40:09 +0100</I><BR>>QuickFIX/J Documentation: http://www.quickfixj.org/documentation/<BR>>QuickFIX/J Support: http://www.quickfixj.org/support/<BR> <P><BR> <META content="Microsoft SafeHTML" name=Generator> <STYLE> p.MsoNormal, li.MsoNormal, div.MsoNormal {margin:0cm;margin-bottom:.0001pt;font-size:12.0pt;font-family:'Times New Roman';} a:link, span.MsoHyperlink {color:blue;text-decoration:underline;} a:visited, span.MsoHyperlinkFollowed {color:purple;text-decoration:underline;} span.EmailStyle17 {font-family:Arial;color:windowtext;} @page Section1 {size:612.0pt 792.0pt;margin:72.0pt 90.0pt 72.0pt 90.0pt;} div.Section1 {page:Section1;} </STYLE> <DIV class=Section1> <P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">All,</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P> <P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Can anyone advise the best way to configure QFJ for failover? For example, if the machine running a QFJ Acceptor fails, is it possible to switch to another machine, re-establish a connection and resume the session with the correct message sequence numbers? Would QFJ handle this automatically perhaps by storing the sequence number file on the network?</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P> <P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks in advance for any advice,</SPAN></FONT></P> <P class=MsoNormal><FONT face=Arial size=2><SPAN lang=EN-GB style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Alex</SPAN></FONT></P></DIV> <P align=left><FONT face=Tahoma size=2><FONT color=#0000ff>Eurobase International Limited and its subsidiaries (Eurobase) are unable to exercise control over the content of information in E-Mails. 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