Re: Dynamic configuration via LDAP in postmaster

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От Vasily Soshnikov
Тема Re: Dynamic configuration via LDAP in postmaster
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Msg-id CAJb1v+kFOSwYRuiTB9=8YFG4e7=1KrMkAPOk1NQWwEJPOmyxog@mail.gmail.com
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Ответ на Re: Dynamic configuration via LDAP in postmaster  (Heikki Linnakangas <hlinnakangas@vmware.com>)
Список pgsql-hackers
<div dir="ltr">Thank you for the advice, nowadays we(company where I work) use such scheme but that scheme is not
alwaysuseful at the stage of development of the back-end infrastructure. Also we have found a better solution : have
ldapfor dynamic configuraion out of the box.<br /><br />So question is following: if you got such task, where do you
putldap functionality inside postgres daemon?<br /><br />PS I have read the basics of ideology Posgresql and I know why
youguys make main server tiny in functionality and this is great, but we would like to have more complex solution.<br
/>This feature may be useful not only for me and my company.  </div><div class="gmail_extra"><br /><br /><div
class="gmail_quote">On3 December 2013 20:54, Heikki Linnakangas <span dir="ltr"><<a
href="mailto:hlinnakangas@vmware.com"target="_blank">hlinnakangas@vmware.com</a>></span> wrote:<br /><blockquote
class="gmail_quote"style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On 12/03/2013
05:44PM, Vasily Soshnikov wrote:<br /><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc
solid;padding-left:1ex">I need advise about where is best place for adding such features.<br /><br /> Currently I found
that'postmaster' have event loop(including handling<br /> SIGHUP) inside PostgressMain(postgress.c)  for realoding
configuration<br/> file, based on my investigation my plan is handling ldap events just before<br /> SIGHUP.<br /><br
/>PS I guess tomorrow I will start implement this feature inside<br /> 'postmaster', but before I start I wish to know
expertopinion about where<br /> are most good place for dispatching of incomming messages(about<br /> configuration has
changedetc) from the ldap.<br /></blockquote><br /></div> postmaster is kept very small on purpose, because if that
processdies, it will take the whole server down with it. I'd suggest writing a custom background worker that talks with
theldap server. It can then write the changes to the configuration files, and send SIGHUP to reload.<span
class="HOEnZb"><fontcolor="#888888"><br /><br /> - Heikki<br /></font></span></blockquote></div><br /><br clear="all"
/><br/>-- <br /><i><span style="color:rgb(153,153,153)"></span><br style="color:rgb(153,153,153)" /><span
style="color:rgb(153,153,153)">Regard,</span><brstyle="color:rgb(153,153,153)" /><br style="color:rgb(153,153,153)"
/><spanstyle="color:rgb(153,153,153)">Soshnikov Vasily mailto:<a href="mailto:dedok.mad@gmail.com"
target="_blank">dedok.mad@gmail.com</a></span><br/></i></div> 

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