Auto-discover with different default port

We’ll look deeper into how auto-discover works. First of all, you need to be familiar with what file the data is being stored in. The default directory can be found in “C:\ProgramData\dbWatchControlCenter\config\server” and it’s in file “discovered_instances.xml”.

*Note this can change depending on where you put your working directory. You must know where it’s stored. You can check “About dbWatch” or click the dbWatch Icon to know where your working directory is.

When you open the file, you may something like this:

<?xml version="1.0" encoding="UTF-8"?>
<autodiscover>
	<instance>
		<dbms-type>postgres</dbms-type>
		<hostname>Server</hostname>
		<hostip>172.200.59.108</hostip>
		<port>5432</port>
		<id><![CDATA[discoveredinstance:postgres/172.200.59.108/5432@server:5713907582237493967/-7851037117993711602]]></id>
	</instance>
	...
	<scanned>
		<ip>172.200.48.1</ip>
		<time>1624507255855</time>
	</scanned>
	...
	<scan>
		<range><![CDATA[172.200.48.0/20]]></range>
		<interval>-1</interval>
		<last-started>1624507255481</last-started>
		<last-completed>1624509560052</last-completed>
	</scan>
</autodiscover>

What you can observe are those within the < instance > tag are the discovered instances while those in the < scanned > tags are the IP addresses scanned without an instance. Additionally, < scan > shows you the details of the scan. I won’t go over the details but you can read on Discovering Database Instance.

Port is different from the known default port

Let’s say you are using a different listening port to that of the default port which is 5432. As we can see the new listening port below, it’s change to 5455:

How can you change the listening port to reflect those changes?

1. One thing to do is to check the “discovered_instances.xml” and alter the port value from 5432 to 5455.

	<instance>
		<dbms-type>postgres</dbms-type>
		<hostname>Server</hostname>
		<hostip>172.200.59.108</hostip>
		<port>5455</port>                                                 
		<id><![CDATA[discoveredinstance:postgres/172.200.59.108/5455@server:5713907582237493967/-7851037117993711602]]></id>
	</instance>

2. Close the monitor and restart the dbWatch server.
3. Open the dbWatch monitor and you should be able to see the changes:

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