Add HLD for Orchagent error handling improvements

sonic-net / SONiC

Landing page for Software for Open Networking in the Cloud (SONiC) - https://sonic-net.github.io/SONiC/

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Open prabhataravind opened 1 month ago

prabhataravind commented 1 month ago

This HLD change attempts to address the following:

Handle all ASIC/SAI programming errors gracefully without causing orchagent to crash or restart
Detect missed notifications from APP_DB to orchagent in SONiC systems that use redis-based communication channels
Detect out-of-sync entries between APP_DB and ASIC_DB