i jdZddlZddlZddlZdaejZdddddeded ed ed ef d Z dS) uRetry utilities — jittered backoff for decorrelated retries. Replaces fixed exponential backoff with jittered delays to prevent thundering-herd retry spikes when multiple sessions hit the same rate-limited provider concurrently. Ng@g^@g?) base_delay max_delay jitter_ratioattemptrrrreturncnt5tdz at}dddn #1swxYwYtd|dz }|dks|dkr|}nt|d|zz|}t j|dzz dz}t j|}|d||z} || zS)aCCompute a jittered exponential backoff delay. Args: attempt: 1-based retry attempt number. base_delay: Base delay in seconds for attempt 1. max_delay: Maximum delay cap in seconds. jitter_ratio: Fraction of computed delay to use as random jitter range. 0.5 means jitter is uniform in [0, 0.5 * delay]. Returns: Delay in seconds: min(base * 2^(attempt-1), max_delay) + jitter. The jitter decorrelates concurrent retries so multiple sessions hitting the same provider don't all retry at the same instant. Nr?lyn<l) _jitter_lock_jitter_countermaxmintimetime_nsrandomRandomuniform) rrrrtickexponentdelayseedrngjitters 6/home/ubuntu/.hermes/hermes-agent/agent/retry_utils.pyjittered_backoffrs. 11gk""H2~~qJ!x-0)<< LNNdZ/ 0J >D -  C [[L50 1 1F 6>s &**) __doc__r threadingrr Lockr intfloatrrr$s  y~  &&& && &  &  &&&&&&r#