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Enum polkadot_node_core_pvf::PrepareError

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pub enum PrepareError {
Show 13 variants Prevalidation(String), Preparation(String), RuntimeConstruction(String), JobError(String), TimedOut, IoErr(String), CreateTmpFile(String), RenameTmpFile { err: String, src: Option<String>, dest: Option<String>, }, OutOfMemory, ClearWorkerDir(String), JobDied { err: String, job_pid: i32, }, Kernel(String), CouldNotDecompressCodeBlob(String),
}
Expand description

An error that occurred during the prepare part of the PVF pipeline.

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Prevalidation(String)

During the prevalidation stage of preparation an issue was found with the PVF.

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Preparation(String)

Compilation failed for the given PVF.

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RuntimeConstruction(String)

Instantiation of the WASM module instance failed.

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JobError(String)

An unexpected error has occurred in the preparation job.

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TimedOut

Failed to prepare the PVF due to the time limit.

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IoErr(String)

An IO error occurred. This state is reported by either the validation host or by the worker.

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CreateTmpFile(String)

The temporary file for the artifact could not be created at the given cache path. This state is reported by the validation host (not by the worker).

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RenameTmpFile

The response from the worker is received, but the file cannot be renamed (moved) to the final destination location. This state is reported by the validation host (not by the worker).

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OutOfMemory

Memory limit reached

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ClearWorkerDir(String)

The response from the worker is received, but the worker cache could not be cleared. The worker has to be killed to avoid jobs having access to data from other jobs. This state is reported by the validation host (not by the worker).

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JobDied

The preparation job process died, due to OOM, a seccomp violation, or some other factor.

Fields

§job_pid: i32
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Kernel(String)

Some error occurred when interfacing with the kernel.

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CouldNotDecompressCodeBlob(String)

Code blob failed to decompress

Implementations§

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impl PrepareError

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pub fn is_deterministic(&self) -> bool

Returns whether this is a deterministic error, i.e. one that should trigger reliably. Those errors depend on the PVF itself and the sc-executor/wasmtime logic.

Non-deterministic errors can happen spuriously. Typically, they occur due to resource starvation, e.g. under heavy load or memory pressure. Those errors are typically transient but may persist e.g. if the node is run by overwhelmingly underpowered machine.

Trait Implementations§

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impl Clone for PrepareError

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fn clone(&self) -> PrepareError

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PrepareError

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fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Decode for PrepareError

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fn decode<__CodecInputEdqy>( __codec_input_edqy: &mut __CodecInputEdqy, ) -> Result<PrepareError, Error>
where __CodecInputEdqy: Input,

Attempt to deserialise the value from input.
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fn decode_into<I>( input: &mut I, dst: &mut MaybeUninit<Self>, ) -> Result<DecodeFinished, Error>
where I: Input,

Attempt to deserialize the value from input into a pre-allocated piece of memory. Read more
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fn skip<I>(input: &mut I) -> Result<(), Error>
where I: Input,

Attempt to skip the encoded value from input. Read more
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fn encoded_fixed_size() -> Option<usize>

Returns the fixed encoded size of the type. Read more
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impl Display for PrepareError

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fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter. Read more
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impl Encode for PrepareError

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fn size_hint(&self) -> usize

If possible give a hint of expected size of the encoding. Read more
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fn encode_to<__CodecOutputEdqy>( &self, __codec_dest_edqy: &mut __CodecOutputEdqy, )
where __CodecOutputEdqy: Output + ?Sized,

Convert self to a slice and append it to the destination.
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fn encode(&self) -> Vec<u8>

Convert self to an owned vector.
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fn using_encoded<R, F>(&self, f: F) -> R
where F: FnOnce(&[u8]) -> R,

Convert self to a slice and then invoke the given closure with it.
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fn encoded_size(&self) -> usize

Calculates the encoded size. Read more
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impl Error for PrepareError

1.30.0 · source§

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any. Read more
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fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting
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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type based access to context intended for error reports. Read more
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impl From<PrepareError> for ValidationError

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fn from(error: PrepareError) -> Self

Converts to this type from the input type.
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impl EncodeLike for PrepareError

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Decode Self and consume all of the given input data. Read more
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fn decode_all_with_depth_limit( limit: u32, input: &mut &[u8], ) -> Result<T, Error>

Decode Self and consume all of the given input data. Read more
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where I: Input,

Decode Self with the given maximum recursion depth and advance input by the number of bytes consumed. Read more
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Causes self to use its LowerExp implementation when Debug-formatted.
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where Self: LowerHex,

Causes self to use its LowerHex implementation when Debug-formatted.
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where Self: Octal,

Causes self to use its Octal implementation when Debug-formatted.
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where Self: UpperExp,

Causes self to use its UpperExp implementation when Debug-formatted.
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where Self: UpperHex,

Causes self to use its UpperHex implementation when Debug-formatted.
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where &'a Self: for<'a> IntoIterator,

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