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The DBL process on all servers in the cluster attempts to connect to
the publisher for SQL database connectivity. The publisher is also
known as 'dbconnection0'. There are a few reasons for DBL not
connecting to the publisher:<br>
<br>
1. Windows RPC failures - check your windows event viewer system log
for errors<br>
2. firewalls/acl's - RPC uses random ephemeral ports to initiate TCP
sessions between servers. You must open the extended ephemeral range
of TCP ports between all CM servers<br>
3. misconfiguration - check the dbconnectionX entries in the registry
of each server under hklm\software\cisco systems, inc.\dbl<br>
it should be in the order:<br>
0 - publisher<br>
1 - local server<br>
2,3,etc - other servers in cluster. These really do not matter. 0 and
1 are the most critical.<br>
<br>
If those are incorrect then your database contains incorrect
information and TAC will need to take a look.<br>
<br>
/Wes<br>
<br>
Brian Henry wrote:
<blockquote
cite="mid2F09B2162CCDEA4EA05C089B24FBC2BC028382C8@CH-EXCH-02.intelltech.apptis.inc"
type="cite">
<meta http-equiv="Content-Type" content="text/html; ">
<div><font color="#000000" face="Arial" size="2">I am currently
running CCM 4.1(3) trying to go to SR3B and I receive the following
error:</font></div>
<div><font face="Arial" size="2">"DB Layer pointed to wrong DB"</font></div>
<div> </div>
<div><font face="Arial" size="2">I have 1 TFTP and 2 Call Processing
Servers which all have the correct Database Layer Monitor setting in
CCM and also in the registry.</font></div>
<div> </div>
<div><font face="Arial" size="2">What are the SQL commands to Check
the database.</font></div>
<div> </div>
<div><font face="Arial" size="2">Brian</font></div>
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</blockquote>
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