PostgreSQL Configuration Example for Database Persistence

vimukthi s. · 2024-07-18T06:11:29.366Z

Hi, does anyone have an example for pointing PostgreSQL for DB persistancy instead of SQLite.

PostgreSQL Configuration Example for Database Persistence | Arize AI Community

PHOENIX_SQL_DATABASE_URL = "postgresql://postgres:########@localhost:5432/phoenix"

I have defined the environment variable as above but it seems not working

Roger Y.
·
can you try a slightly different format, i.e. putting the username and password at the end?
postgresql://@host/dbname?user=user&password=password
Roger Y.
·
in the logs for the postgres instance do you see any errors?
vimukthi s.
·
Hi Roger Y. I have updated the db url with your new format,
PHOENIX_SQL_DATABASE_URL=postgresql://@localhost/phoenix?user=postgres&password=Zieg1234@
And in pgAdmin4 I can see a session has been made when I send a query to my chat application But still the traces are not persist, when I restart my application they just dissapears.
Roger Y.
·
so you’re seeing traces showing up in Phoenix but they disappear if you restart Phoenix?
Roger Y.
·
do you see traces in the postgres database itself by select * from spans?
vimukthi s.
·
yes correct it disappears after restarting. And I executed you query right now. Seems like the schema is not created, below is the outout. ERROR: relation "spans" does not exist LINE 1: select * from spans ^ SQL state: 42P01 Character: 15
Roger Y.
·
that is very odd
Roger Y.
·
what’s your postgres version?
vimukthi s.
·
PostgreSQL 16.3, compiled by Visual C++ build 1939, 64-bit
Roger Y.
·
how do you start your phoenix?
Roger Y.
·
do you see the postgres url when it starts?

vimukthi s.

import phoenix as px
session = px.launch_app()

and I'm setting up custom tracing object as below,

from openinference.semconv.resource import ResourceAttributes
from opentelemetry import trace
from opentelemetry.exporter.otlp.proto.http.trace_exporter import OTLPSpanExporter
from opentelemetry.sdk.resources import Resource
from opentelemetry.sdk.trace import TracerProvider
from opentelemetry.sdk.trace.export import SimpleSpanProcessor
from phoenix.config import get_env_host, get_env_port


def setup_tracing(app_name):
    resource = Resource(attributes={
        ResourceAttributes.PROJECT_NAME: f'{app_name}'
    })
    tracer_provider = TracerProvider(resource=resource)
    trace.set_tracer_provider(tracer_provider)
    tracer = trace.get_tracer(__name__)
    collector_endpoint = f"http://localhost:{get_env_port()}/v1/traces"
    span_exporter = OTLPSpanExporter(endpoint=collector_endpoint)
    simple_span_processor = SimpleSpanProcessor(span_exporter=span_exporter)
    trace.get_tracer_provider().add_span_processor(simple_span_processor)

    return tracer

Roger Y.

can you run this in a command prompt?

PHOENIX_SQL_DATABASE_URL='postgresql://@localhost/phoenix?user=postgres&password=Zieg1234@' python -m phoenix.server.main serve

Roger Y.
·
if so, do you see the print out like my screenshot above?

PostgreSQL Configuration Example for Database Persistence

22 comments

PostgreSQL Configuration Example for Database Persistence

22 comments