Knowledge Center Monthly Newsletter - July 2025

New Knowledge Center articles

Find all new Knowledge Center articles published in July. We publish new articles to resolve the most common issues you might encounter.

Amazon Bedrock

How do I improve Amazon Bedrock performance and response times when I process and retrieve large scale data?

How do I resolve SCP conflicts that prevent access to Amazon Bedrock and related AWS Marketplace operations?

Why can't I control model access for Amazon Bedrock third-party models by AWS Region?

How do I troubleshoot the "Sorry, I am unable to assist you with this request" response in Amazon Bedrock Knowledge Bases?

How do I optimize batch inference jobs in Amazon Bedrock?

Amazon CloudFront

How do I configure OAC for CloudFront distributions with Amazon S3 origins and migrate from OAI?

Amazon Elastic Compute Cloud (Amazon EC2)

How do I remove the ec2-user account from my Amazon EC2 Linux instance?

How do I troubleshoot high memory usage issues on my EC2 Linux instance?

Should I use Savings Plans or Reserved Instances for my EC2 instance?

How do I migrate my RHEL BYOL EC2 instance license to an RHUI license?

How do I restore the connection to my EC2 instance?

How do I configure instance metadata and activate tags on my EC2 instance?

How do I troubleshoot high CPU utilization on an EC2 Linux instance?

How do I troubleshoot EC2 instance start and stop time issues with the Instance Scheduler on AWS?

How do I find deprecated AMIs in Amazon EC2?

How do I secure my EC2 instance to meet compliance programs?

How do I change my EC2 instance type across different families and hypervisors?

Amazon Elastic Kubernetes Service (Amazon EKS)

Why can't I use kubectl to connect to my EKS cluster?

How do I add new subnets to an existing Amazon EKS cluster?

Amazon Managed Streaming for Apache Kafka (Amazon MSK)

How do I configure the retention period for my MSK cluster?

Amazon Managed Workflows for Apache Airflow (Amazon MWAA)

How do I troubleshoot tasks that are stuck in the Queued state in my Amazon MWAA environment?

Amazon Redshift

Why can't I match query IDs across system tables in Amazon Redshift?

How do I resolve UNLOAD command and S3 access issues in Amazon Redshift?

How can I design column encoding in Amazon Redshift?

How do I grant access permissions to external schemas in Amazon Redshift?

What are the benefits to use VACUUM RECLUSTER in Amazon Redshift?

How do I use Amazon Redshift reserved nodes?

Why do unsorted columns have NULL values in SVV_TABLE_INFO in Amazon Redshift?

Why does a table in Amazon Redshift show a high unsorted percentage when the vacuum sort benefit is 0?

Amazon Relational Database Service (Amazon RDS)

How do I have resolve issues caused by an LWLock:pg_stat_statements wait event in Amazon RDS for PostgreSQL or Aurora PostgreSQL-Compatible?

How do I prevent DDL operations in my Amazon RDS for PostgreSQL or Aurora PostgreSQL-Compatible instances during blue/green deployments?

Amazon Route 53

How do I configure Route 53 to point to an Amazon S3 static website and resolve DNS issues?

How do I transfer or register premium or unsupported domains with Route53?

How do I resolve Route 53 Resolver rule issues with DNS resolution in VPCs?

AWS Systems Manager

Why isn't Systems Manager showing my Amazon EC2 instance as a managed instance?