Copilot Knowledge Base sync failing - intermittent 503s

Architect & Flows
1

Don’t panic, intermittent 503s on the /knowledge/v1/articles/sync endpoint are…expected, honestly. We’ve seen this happen when the KCS connector throttles requests. It’s trying to be a good citizen, respecting rate limits - see https://developer.genesys.cloud/knowledge-center/rest-api/knowledge-management/knowledge-base-sync-api.

The architect flow uses a scheduled trigger set to run every 15 minutes. The logs show the connector’s retries kicking in, but it’s still dropping articles. It’s not a schema issue - validated that with the POST /knowledge/v1/articles endpoint directly.

Anyone else run into this? Is there a way to increase the connector’s concurrency without overloading the KCS instance?

2

At my last shop, we had similar issues - the 503s were more frequent when the article count was large. Instead of retrying immediately, a small, random backoff helps - maybe between 1 and 5 seconds. Also, check the max-concurrent-sync-requests parameter in the KCS connector configuration; it defaults to 10, but increasing it might help if your articles aren’t too large. We found that setting it to 20 stabilized things.

3

The KCS connector’s throttling is… something. At my last shop, we ended up wrapping the sync calls in a retry loop with exponential backoff - up to 10 seconds, then just giving up. It’s a band-aid, sure, because GC should just handle this gracefully. Here’s the gist:

import time
import random

for attempt in range(5):
 try:
 # Sync call here
 break
 except Exception as e:
 wait_time = (2 ** attempt) + random.random()
 time.sleep(wait_time)

edit: Honestly, the API should return a proper 429 instead of a 503. Just sayin’.

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