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The error message means that there is no existing user called

postgres

in your DB

could u tell me is this user is default one or what i have to do to mitigate this? before it was actually working..

You need to check the available users in postgres, on some systems the default user is

postgres

on others its

superuser

for example

so its not that the pulsar cant find my DB itself, but a user is not there in DB?

I think so, if you use

psql

to connect against your postgres instance you can check the list of users running

\du

command

do u know how i can find the postgres instance IP to connect? as i think its inbuilt in pulsar manager and there was not a dedicated instance for this backend in my cluster

The pulsar manager does not start any postgres instance, you will have to spin up postgres yourself (or alternatively use the builtin H2 db)

ohh okay, let me look at the helm chart i had applied.

If you use psql or some other client, can you use this user to log in to the database you are setting in the jdbc connection url of the pulsar-manager?

i am not sure if i understand.. do u mean below: i logged into pgadmin, logged into DB of the pulsar which i gave during installation. and went to users and role, but there was no data. so i manually created a super user like above restarted the manager pod

Can you try connecting with

psql

with the username and password and the same database like in pulsar manager? For example if this is your config

spring.datasource.url=jdbc:<postgresql://localhost:5432/pulsar_manager>
spring.datasource.username=postgres
spring.datasource.password=postgres

try:

psql <postgresql://postgres:postgres@localhost:5432/pulsar_manager>

and see if you are able to successfully connect/make changes

lemme try thankss!!

It does not matter, you can use any pod/machine that would have network access to the db