Redis for n8n

[zonzonzon]

I installed another application on Cloudron and I saw that the application has Redis. Can I leverage that Redis for the queue in my n8n, or do I need to install Redis elsewhere? Thank you.

[joseph]

@zonzonzon are you rferring to https://docs.n8n.io/hosting/scaling/queue-mode/#start-redis ? I have to say such a setup might be an overkill for Cloudron. (as in , having multiple workers + horizontal scaling) . The package is designed for a single node deployment.

[JOduMonT]

hi;

I know it's not the same question but the title remain appropriate.

I just deployed the n8n 1.115.3 via the Package Version io.n8n.cloudronapp@3.105.1
and I noticed that Redis is available

my questions are;

1. is it safe the reuse that Redis for my has memory for my AI Agent (inside n8n) ?
2. is this Redis isolated and dedicated to n8n instance ?

• BTW: I used "Database Number": 1.

[james]

Hello @JOduMonT

@JOduMonT said in Redis for n8n:

is it safe the reuse that Redis for my has memory for my AI Agent (inside n8n) ?

Could you please elaborate what you mean by "safe" so I can give a more precise response?
In general, yes you can use the Redis service of your app for your app with no issues.

@JOduMonT said in Redis for n8n:

is this Redis isolated and dedicated to n8n instance ?

Yes, if an app comes with a Redis service, this Redis service is available to this app.
By default, only the app that creates its own Redis service uses this Redis service.

But to be very precise, it is not fully isolated to this app only.
Meaning?
As an example, you have the N8N app and the LAMP app.
Both have a Redis service.
If you get the credentials of the LAMP Redis service, you could connect from the N8N app to the LAMP Redis service.
Same with other services like PostgreSQL, MYSQL and so on.

That can be very useful, since you could connect to the other services in N8N.
I have a LAMP app with my custom Webpage and Database and can connect to this Database with the N8N app to do some automation.

If you have more questions, feel free to ask away.

[JOduMonT]

@james
safe as in I want to avoid corruption
this is way I pick database number 1

because if; Redis is shared between all the container and attribute different database to each of them
then if manually I use a database number (such as 1)
I might shoot data and disrupt one of my services.

PS: I don't really know Redis
but I presume, as in any database, data integrity is important.