reth_downloaders::metrics

Struct HeaderDownloaderMetrics

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pub struct HeaderDownloaderMetrics {
    pub total_flushed: Counter,
    pub total_downloaded: Counter,
    pub in_flight_requests: Gauge,
    pub buffered_responses: Gauge,
    pub buffered_blocks: Gauge,
    pub buffered_blocks_size_bytes: Gauge,
    pub queued_blocks: Gauge,
    pub out_of_order_requests: Counter,
    pub timeout_errors: Counter,
    pub validation_errors: Counter,
    pub unexpected_errors: Counter,
}
Expand description

Common header downloader metrics.

These metrics will be initialized with the downloaders.headers scope.

use reth_downloaders::metrics::HeaderDownloaderMetrics;
use reth_network_p2p::error::DownloadError;

// Initialize metrics.
let metrics = HeaderDownloaderMetrics::default();
// Increment `downloaders.headers.timeout_errors` counter by 1.
metrics.increment_errors(&DownloadError::Timeout);

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§total_flushed: Counter

The number of items that were successfully sent to the poller (stage)

§total_downloaded: Counter

Number of items that were successfully downloaded

§in_flight_requests: Gauge

The number of requests (can contain more than 1 item) currently in-flight.

§buffered_responses: Gauge

The number of responses (can contain more than 1 item) in the internal buffer of the downloader.

§buffered_blocks: Gauge

The number of blocks the internal buffer of the downloader. These are bodies that have been received, but not cannot be committed yet because they’re not contiguous

§buffered_blocks_size_bytes: Gauge

Total amount of memory used by the buffered blocks in bytes

§queued_blocks: Gauge

The number blocks that are contiguous and are queued for insertion into the db.

§out_of_order_requests: Counter

The number of out-of-order requests sent by the downloader. The consumer of the download stream is able to re-request data (headers) in case it encountered a recoverable error (e.g. during insertion). Out-of-order request happen when the headers downloader SyncTarget::Tip hash is different from the previous sync target hash.

§timeout_errors: Counter

Number of timeout errors while requesting items

§validation_errors: Counter

Number of validation errors while requesting items

§unexpected_errors: Counter

Number of unexpected errors while requesting items

Implementations§

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impl HeaderDownloaderMetrics

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pub fn new_with_labels(labels: impl IntoLabels + Clone) -> Self

Create new instance of metrics with provided labels.

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pub fn describe()

Describe all exposed metrics. Internally calls describe_* macros from the metrics crate according to the metric type.

See https://docs.rs/metrics/0.20.1/metrics/index.html#macros

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impl HeaderDownloaderMetrics

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pub fn increment_errors(&self, error: &DownloadError)

Increment errors counter.

Trait Implementations§

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impl Clone for HeaderDownloaderMetrics

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fn clone(&self) -> HeaderDownloaderMetrics

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 HeaderDownloaderMetrics

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

Formats the value using the given formatter. Read more
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impl Default for HeaderDownloaderMetrics

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fn default() -> Self

Returns the “default value” for a type. Read more

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Size: 176 bytes