IRRd 4.2.1 was released on October 29th, 2021, and fixes two issues that occurred in 4.2.0:
- IRRd’s whois worker processes could use excessive memory #571
- When dropping privileges, IRRd did not correctly configure the user’s groups, causing issues with typical Redis setups #567
The memory issue occurred mainly when answering queries with large responses. Those cause high memory consumption in the workers, which is expected, but after answering the query, the workers did not always release the memory.