From 4b20d81b19379689cf8f7e8b2dfdee7fafef004c Mon Sep 17 00:00:00 2001
From: Adam Miller <adam@archive.org>
Date: Tue, 26 Nov 2024 10:26:47 -0800
Subject: [PATCH] chore: Comment retry delay backoff calculation.

---
 brozzler/worker.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/brozzler/worker.py b/brozzler/worker.py
index cb7b368..44e90d5 100644
--- a/brozzler/worker.py
+++ b/brozzler/worker.py
@@ -552,6 +552,8 @@ class BrozzlerWorker:
                     "unexpected exception site=%r page=%r", site, page, exc_info=True
                 )
             if page:
+                # Calculate backoff in seconds based on number of failed attempts.
+                # Minimum of 60, max of 135 giving delays of 60, 90, 135, 135...
                 retry_delay = min(135, 60 * (1.5**page.failed_attempts))
                 page.retry_after = doublethink.utcnow() + datetime.timedelta(
                     seconds=retry_delay