Can not always connect to postmaster. Sometimes get "Connection refused".

<div class="Section1"><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">Hi,</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">We’re running postgres7.3 on RedHat7.3. The Postgres at boot time starts up from a java (1.2) class
thatruns the following commands in order:</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">/usr/local/pgsql/bin/pg_ctl -w start -D /var/lib/pgsql -l /var/log/pgsqld.log -o –i</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">/usr/local/pgsql/bin/createdb management</span></font><p class="MsoNormal"><font face="Arial"
size="2"><spanstyle="font-size:10.0pt; 
font-family:Arial">.</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">.</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">.</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">As you can tell the postmaster starts up with “-i” option here. </span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">In pg_hba.conf we have:</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">local   all         all                                                          
trust</span></font><pclass="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">host    all         all         127.0.0.1         255.255.255.255   trust</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">host    all         all         192.168.0.0     255.255.0.0                     
trust</span></font><pclass="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">The host IP address is 192.168.55.5 which is in the right subnet.</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial">In postgresql.conf: </span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">#</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">#       Connection Parameters</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#</span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">tcpip_socket = true</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#ssl = false</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">max_connections = 64</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#superuser_reserved_connections = 2</span></font><p class="MsoNormal"><font face="Arial"
size="2"><spanstyle="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">#port = 5432 </span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#hostname_lookup = false</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#show_source_port = false</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">#unix_socket_directory = ''</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#unix_socket_group = ''</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">#unix_socket_permissions = 0777 # octal</span></font><p class="MsoNormal"><font face="Arial"
size="2"><spanstyle="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">tcpip_socket = true</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial">++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++</span></font><p
class="MsoNormal"><fontface="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt;
font-family:Arial">Sometimes, after Postgres starts up, when the database clients try to access the db from the
localhost,we get the following error:</span></font><p class="MsoNormal"><font face="Arial" size="2"><span
style="font-size:10.0pt;
font-family:Arial"> </span></font><p class="MsoNormal"><span class="f40"><font face="Times New Roman" size="2"><span
style="font-size:10.0pt">com.solarmetric.kodo.Runtime- com.solarmetric.kodo.runtime.FatalDataStoreException: Connection
refused.Check that the hostname and port are correct and that the postmaster is accepting TCP/IP connections.
</span></font></span><pclass="MsoNormal"><span class="f40"><font face="Times New Roman" size="2"><span
style="font-size:10.0pt"> </span></font></span><pclass="MsoNormal" style="margin-left:.5in;text-indent:-.25in"><span
class="f40"><fontface="Times New Roman" size="2"><span style="font-size:10.0pt">a)<font face="Times New Roman"
size="1"><spanstyle="font:7.0pt "Times New Roman"">       </span></font></span></font></span><span class="f40"><font
size="2"><spanstyle="font-size:10.0pt">Any ideas what’s causing postmaster NOT to accept connections some of the
time?</span></font></span><pclass="MsoNormal"><span class="f40"><font face="Times New Roman" size="2"><span
style="font-size:10.0pt"> </span></font></span><pclass="MsoNormal"><span class="f40"><font face="Times New Roman"
size="2"><spanstyle="font-size:10.0pt">This problem almost always goes away upon rebooting the
machine.</span></font></span><pclass="MsoNormal"><span class="f40"><font face="Times New Roman" size="2"><span
style="font-size:10.0pt"> </span></font></span><pclass="MsoNormal"><span class="f40"><font face="Times New Roman"
size="2"><spanstyle="font-size:10.0pt">Any help is much appreciated.</span></font></span><p class="MsoNormal"><span
class="f40"><fontface="Times New Roman" size="2"><span style="font-size:10.0pt"> </span></font></span><p
class="MsoNormal"><spanclass="f40"><font face="Times New Roman" size="2"><span
style="font-size:10.0pt">Thanks,</span></font></span><pclass="MsoNormal"><span class="f40"><font face="Times New Roman"
size="2"><spanstyle="font-size:10.0pt">-Allen</span></font></span><font size="2"><span style="font-size:10.0pt"><br
/><br/></span></font><p class="MsoNormal"><font face="Arial" size="2"><span style="font-size:10.0pt; 
font-family:Arial"> </span></font></div>
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