user100284: I can import watch-only addresses into my full-node's wallet. I can start querying their utxos from that point onward.

Where are watch-only addresses stored and how does my node keep index of their balances / utxos?
If I want to backup and boot a new instance of my node will it retain the indexes associated with my watched addresses?
Is there a limit to how many addresses I can watch, will many make querying inefficient?


user41313: 
Where are watch-only addresses stored and how does my node keep index of their balances / utxos?

Usually the software creates a wallet file just like any other and stores information in that, except the wallet file will be missing private key information.

If I want to backup and boot a new instance of my node will it retain the indexes associated with my watched addresses?

Yes

Is there a limit to how many addresses I can watch, will many make querying inefficient?

Depends on your computer and the software used. There is no hard limit but the more there are the slower it'll be.

100284: <p>I can import watch-only addresses into my full-node's wallet. I can start querying their utxos from that point onward.</p>
<ol>
<li>Where are watch-only addresses stored and how does my node keep index of their balances / utxos?</li>
<li>If I want to backup and boot a new instance of my node will it retain the indexes associated with my watched addresses?</li>
<li>Is there a limit to how many addresses I can watch, will many make querying inefficient?</li>
</ol>
 41313: <blockquote>
<p>Where are watch-only addresses stored and how does my node keep index of their balances / utxos?</p>
</blockquote>
<p>Usually the software creates a wallet file just like any other and stores information in that, except the wallet file will be missing private key information.</p>
<blockquote>
<p>If I want to backup and boot a new instance of my node will it retain the indexes associated with my watched addresses?</p>
</blockquote>
<p>Yes</p>
<blockquote>
<p>Is there a limit to how many addresses I can watch, will many make querying inefficient?</p>
</blockquote>
<p>Depends on your computer and the software used. There is no hard limit but the more there are the slower it'll be.</p>
