Cloudflare Developers•2y ago

Cache deserialization error

CacheError [ERR_DESERIALIZATION]: Unable to deserialize stored cached data due to missing metadata.
The cached data storage format changed in Miniflare 2. You cannot load cached data created with Miniflare 1 and must delete it.

CacheError [ERR_DESERIALIZATION]: Unable to deserialize stored cached data due to missing metadata.
The cached data storage format changed in Miniflare 2. You cannot load cached data created with Miniflare 1 and must delete it.

this just randomly happened for data that was just cached minutes before

3 Replies

MrBBot•2y ago

Hey! 👋 Are you able to reproduce this reliably? If so, could you share the code around the caches.*.put() call?

sathoroOP•2y ago

it only randomly happened one time - very odd

MrBBot•2y ago

Hmmm, potentially a race condition with multiple concurrent cache calls. 😕 Those should be fixed in Miniflare 3

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Cache deserialization error