What causes "unrecognized system resource identifier" in influxdata/influxdb?

Inspect the logged identifier (error! with identifier = ?self.0) to see the bad bitmap value.

unrecognized system resource identifier

Error message

unrecognized system resource identifier

What it means

A panic raised in Display for SystemResourceIdentifier when name() returns None, i.e. the internal bitmap value does not map to any known system resource identifier. This is an internal invariant violation: Display formatting assumes every identifier is mappable, so the code panics instead of returning an error.

Solutions

Inspect the logged identifier (error! with identifier = ?self.0) to see the bad bitmap value.
Align versions: use a binary of influxdb3 that knows all system resources present in the stored data.
Replace with non-panicking handling: change name()/Display to return a Result or fall back to printing the raw number.

Example fix

// before
panic!("unrecognized system resource identifier")
// after
return write!(f, "unrecognized({:#06x})", self.0.bits());

Defensive patterns

Strategy: try-catch

Validate before calling

fn is_known_identifier(bits: u16, known: &[u16]) -> bool { known.contains(&bits) }

Type guard

fn as_known_system_resource(bits: u16) -> Option<SystemResourceIdentifier> {
    SystemResourceIdentifier::from_bits(bits).filter(|id| id.name().is_some())
}

Try / catch

// Display panics; avoid it for untrusted identifiers:
match id.name() {
    Some(n) => println!("{n}"),
    None => eprintln!("unknown system resource identifier bits={:#06x}", id.bits()),
}

Prevention

Never format identifiers from data written by a newer schema version without validating bits first
Prefer try_from/checked conversion over Display for untrusted input
Run migrations when upgrading binaries across versions with new system resources

When it happens

Trigger: Formatting a SystemResourceIdentifier whose u16 bitmap contains bits that no SystemResource variant corresponds to — e.g. a bitmap built from unrecognized/combined flags or from a newer schema than this binary understands.

Common situations: Loading token/permission data persisted by a newer InfluxDB 3 version that defines system resources this binary does not know; corrupted bitmaps in stored permissions.

Understand the failure class

Background: "This is a bug, please report it": internal invariant violations, unreachable panics, and SNH errors explained — this error's family across 47 libraries.

Related errors

AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/49c8fd05d3c6fdaf. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_authz/src/permissions.rs:228

        self.0
    }

    pub fn name(&self) -> Option<&'static str> {
        match self.0 {
            Self::HEALTH => Some(Self::HEALTH_NAME),
            Self::METRICS => Some(Self::METRICS_NAME),
            Self::PING => Some(Self::PING_NAME),
            Self::READY => Some(Self::READY_NAME),
            _ => None,
        }
    }
}

impl Display for SystemResourceIdentifier {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        let Some(stringified) = self.name() else {
            error!(identifier = ?self.0, "cannot map system resource identifier");
            panic!("unrecognized system resource identifier")
        };
        write!(f, "{stringified}")
    }
}

impl From<u16> for SystemResourceIdentifier {
    fn from(value: u16) -> Self {
        SystemResourceIdentifier(value)
    }
}

#[derive(Debug, Clone, Copy, Default)]
pub struct PermissionAttributes {
    actions: ActionsBitmap,
}

impl PermissionAttributes {
    pub fn new(actions: ActionsBitmap) -> Self {

View on GitHub (pinned to 06200ef96b)