8 solutions found
null Lambda with VPC config hits 15+ sec cold starts when scaling. Real fix: use hyperplane ENI attachments and switch to SDK v3 with keep-alive....
When Lambda tries to create an ENI in a VPC subnet, it can hang in Pending state. I'll show you why and how to fix it....
Invalid class name This error shows up in Bash or Python scripts when a variable or function name breaks naming rules. Here's how to spot and fix it fast....
Task timed out after 3.01 seconds Your Lambda function times out when connected to a VPC without internet access. This guide walks you from quick timeout increase to proper NAT gateway...
Task timed out after X seconds Lambda timeout errors are almost always misconfigured timeout settings or slow downstream calls. Here's how to pinpoint and fix them fast....
UPDATE_ROLLBACK_FAILED Your CloudFormation stack won't roll back because it can't delete or modify a resource. Usually a missing IAM permission or a manually deleted resourc...
0X0000012A This error hits when too many processes hammer a semaphore at once. I've seen it mostly on Windows Server with bad printer drivers or database locks....
0XC0190021 This error hits when a database cursor or handle points to a deleted row or object. It's common in SQL Server with stale cursors or orphaned tempdb ob...