API Rate Limiting
A constraint mechanism imposed by service providers to protect system stability by limiting the frequency of API requests. It is usually calculated by time window and request weight, and clients must adopt backoff algorithms and subscription-based push methods to make compliant calls.
Timeline (last 90 days)
API calls are actually constrained by rate limits (RPM/TPM); credit exhaustion and hitting rate ceilings are two different causes of interruption.
API rate limiting is a constraint that exchanges set on request frequency to protect system stability, usually calculated by time window and weight, with different endpoints consuming different weights.
The input scale of backfilling equals the full historical data, and its cost increases monotonically with the total data volume and cannot be compressed in total computation by adding concurrency, so in practice backfilling is difficult to complete within a few hours and inevitably overlaps with online queries.
All Facts (3)
API calls are actually constrained by rate limits (RPM/TPM); credit exhaustion and hitting rate ceilings are two different causes of interruption.
50%UnverifiedAPI rate limiting is a constraint that exchanges set on request frequency to protect system stability, usually calculated by time window and weight, with different endpoints consuming different weights.
50%UnverifiedThe input scale of backfilling equals the full historical data, and its cost increases monotonically with the total data volume and cannot be compressed in total computation by adding concurrency, so in practice backfilling is difficult to complete within a few hours and inevitably overlaps with online queries.
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