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How to get the number of current servers which are not down from the c++ client
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gmail  
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 More options Jul 27 2012, 1:37 am
From: gmail <fly...@gmail.com>
Date: Fri, 27 Jul 2012 13:37:42 +0800
Local: Fri, Jul 27 2012 1:37 am
Subject: How to get the number of current servers which are not down from the c++ client
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Hi:
when I use replica set , and make w=3 when use the c++ client to insert data , if one of the mongod down ,How to get the number of current servers which are not down from the c++ client ?

gmail


 
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Kristina Chodorow  
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 More options Jul 30 2012, 10:55 am
From: Kristina Chodorow <krist...@10gen.com>
Date: Mon, 30 Jul 2012 07:55:17 -0700 (PDT)
Local: Mon, Jul 30 2012 10:55 am
Subject: Re: How to get the number of current servers which are not down from the c++ client
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There's no automatic way.  You would have to call isMaster on the primary
and then try to connect to each of the hosts in the host list.  

That is one reason we have the w="majority" option: it has almost the same
safety properties as w=(total # of members) but will still work if a node
is down.


 
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