Backend Development43 min
Postgres Dead Tuples Not Being Removed: Fixes (2026)
Postgres dead tuples not being removed? VACUUM can only delete rows older than the xmin horizon. Here is how to find what holds it back, and how to fix it.
Tag
#troubleshooting
3 posts
AI & Machine Learning37 min
MCP Server Not Showing Up in Claude Desktop: Fixes (2026)
MCP server not showing up in Claude Desktop? Check the Connectors menu, the config's JSON, a full quit, mcp.log, and the file the app reads — in that order.
Cloud & DevOps36 min
Karpenter Not Scaling Up Nodes: Causes and Fixes (2026)
Karpenter not scaling up nodes? Work through the documented causes in order — NodePool and EC2NodeClass readiness, limits, requirements, taints, and CNI IPs.
