getredash/redash · error · Exception

Got invalid response from Graphite (http status code: {0}).

Error message

Got invalid response from Graphite (http status code: {0}).

What it means

test_connection for Graphite simply GETs {url}/render with the configured credentials and expects HTTP 200; any other status code (401 unauthorized, 404 wrong path, 502) raises this exception with the returned code embedded.

Source

Thrown at redash/query_runner/graphite.py:76

        super(Graphite, self).__init__(configuration)
        self.syntax = "custom"

        if "username" in self.configuration and self.configuration["username"]:
            self.auth = (self.configuration["username"], self.configuration["password"])
        else:
            self.auth = None

        self.verify = self.configuration.get("verify", True)
        self.base_url = "%s/render?format=json&" % self.configuration["url"]

    def test_connection(self):
        r = requests.get(
            "{}/render".format(self.configuration["url"]),
            auth=self.auth,
            verify=self.verify,
        )
        if r.status_code != 200:
            raise Exception("Got invalid response from Graphite (http status code: {0}).".format(r.status_code))

    def run_query(self, query, user):
        url = "%s%s" % (self.base_url, "&".join(query.split("\n")))
        error = None
        data = None

        try:
            response = requests.get(url, auth=self.auth, verify=self.verify)

            if response.status_code == 200:
                data = _transform_result(response)
            else:
                error = "Failed getting results (%d)" % response.status_code
        except Exception as ex:
            data = None
            error = str(ex)

        return data, error

View on GitHub (pinned to ca79fe988d)

Solutions

1. curl -u user:pass <url>/render from the Redash host and inspect the status code — 404 means wrong URL, 401 means bad credentials
2. Fix the URL to point at Graphite-web (not carbon/Grafana) and correct username/password
3. If behind a proxy, ensure /render is forwarded and returns 200

Example fix

// before
url = "https://metrics.example.com"
// after
url = "https://metrics.example.com/render"  # verify: curl -u u:p https://metrics.example.com/render -> 200

import requests

def graphite_render_ok(url, auth=None) -> bool:
    try:
        return requests.get(f"{url}/render", auth=auth, timeout=10).status_code == 200
    except requests.RequestException:
        return False

try:
    runner.test_connection()
except Exception as e:
    if "invalid response from Graphite" in str(e):
        diagnose_status_code_in_message()  # 401 creds, 404 url, 5xx server

When it happens

Trigger: Clicking 'Test Connection' on a Graphite data source when the URL is wrong (points to non-Graphite server returning 404), credentials are invalid (401/403), or Graphite's webapp is erroring (500/502).

Common situations: Base URL missing /render capability (pointing at Grafana instead of Graphite-web), trailing-slash/proxy issues, basic-auth user/password typos, self-signed cert with verify on.

Related errors

• Failed describing objects.
• Invalid JWT token
• Username and Password required
• Azure AD Client ID, Client Secret, and Tenant ID are require
• Failed getting accounts.

AI-assisted analysis of getredash/redash@ca79fe988d (2026-08-28). Data as JSON: /api/errors/b6f601767345ccb2. Report an issue: GitHub.