Last week’s hallmark event was the security-focused AWS re:Inforce conference. Now a tradition, the blog team wrote a re:Cap post to summarize the announcements and link to some of the top blog posts. To further summarize, several new security innovations were announced, including enhanced IAM Access Analyzer capabilities, MFA enforcement for root users, and threat […]

https://aws.amazon.com/elasticache/ now supports https://docs.aws.amazon.com/general/latest/gr/rande.html#dual-stack-endpoints. Dual-stack service endpoints allow you to manage ElastiCache resources using either Internet Protocol version 4 (IPv4) or version 6 (IPv6). ElastiCache https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/elasticache-privatelink.html powered by AWS PrivateLink also now support dual-stack connectivity. With this update, you can now connect to and manage your Amazon ElastiCache resources using IPv4 or IPv6. Dual-stack endpoints allow you to migrate applications using ElastiCache from IPv4 to IPv6 at your convenience, making it easier to meet IPv6 compliance requirements and modernize your application architecture. Amazon ElastiCache dual-stack service endpoints are available in all AWS commercial Regions, AWS China Regions and AWS GovCloud (US) Regions. There is no additional charge when you connect to Amazon ElastiCache service endpoints using Internet Protocol Version 6 (IPv6). To learn more, see the https://docs.aws.amazon.com/general/latest/gr/elasticache-service.html.

In this post, we explore the basics of integrating a Spring Boot application with ElastiCache to enable caching. Amazon ElastiCache is a fully managed, Valkey-, Memcached-, and Redis OSS-compatible service...

Last week, the OpenSearch and Valkey teams visited Seoul to meet open source developers and contributors in the Open Source Summit Korea 2026 and MCP DevSummit Seoul 2026. At the four-day event, community leaders and users of open source projects and emerging agent AI gathered to share knowledge, collaborate on solutions, and push the projects […]

Vector search for https://aws.amazon.com/elasticache/ is now generally available. Customers can now use ElastiCache to index, search, and update billions of high-dimensional vector embeddings from popular providers like https://aws.amazon.com/bedrock/, https://aws.amazon.com/sagemaker/, https://www.anthropic.com/, and https://openai.com/ with latency as low as microseconds and up to 99% recall. Key use cases include semantic caching for large language models (LLMs) and multi-turn conversational agents, which significantly reduce latency and cost by caching semantically similar queries. Vector search for ElastiCache also powers agentic AI systems with Retrieval Augmented Generation (RAG) to ensure highly relevant results and consistently low latency across multiple retrieval steps. Additional use cases include recommendation engines, anomaly detection, and other applications that require efficient search across multiple data modalities. Vector search for ElastiCache is available with Valkey version 8.2 on node-based clusters in all AWS Regions at no additional cost. To get started, create a Valkey 8.2 cluster using the https://console.aws.amazon.com/elasticache/, AWS Software Development Kit (SDK), or AWS Command Line Interface (CLI). You can also use vector search on your existing clusters by upgrading from any version of Valkey or Redis OSS to Valkey 8.2 in a https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/VersionManagement.HowTo.html. To learn more about vector search for ElastiCache for Valkey read https://aws.amazon.com/blogs/database/announcing-vector-search-for-amazon-elasticache/ and for a list of supported commands see the https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/vector-search.html. 

Starting today, you can easily connect Amazon ElastiCache clusters to an Amazon Elastic Compute Cloud (Amazon EC2) instance directly from the AWS Management Console. You can also connect to your cache using AWS CloudShell to execute commands without additional setup. With a single click, you can establish secure connectivity between your cache and an EC2 instance, following AWS recommended best practices. ElastiCache automatically configures VPCs, security groups, and network settings, eliminating the need for manual tasks like setting up subnets and ingress/egress rules. This streamlines the process for new users and developers, enabling them to launch a cache instance and connect it to an application within minutes. You can also choose to connect to your cache from the Console using AWS CloudShell. Just click the “Connect to cache” button in the new “Connectivity and Security” tab. This will open a new AWS CloudShell session and connect to your cache using the valkey-cli tool. Once connected, you can execute common Valkey commands, including reading data (e.g. GET <key>) and writing data (e.g. SET <key> <value>). This lets you test cache functionality directly in the console, without needing to connect to it from an EC2 instance. Learn more about setting up connectivity to a compute resource from your ElastiCache cluster in the Amazon ElastiCache user guide.

Today, we are announcing that Amazon ElastiCache Serverless now supports the WATCH command for same-slot transactions, helping developers build more reliable applications with improved data consistency in high-concurrency scenarios. With this launch, the WATCH command makes transactions conditional, ensuring they execute only when monitored keys remain unchanged. For ElastiCache Serverless, the WATCH command works with transactions that operate on keys within the same hash slot as the watched keys. When applications attempt to watch keys that are not in the same hash slot, they'll receive a CROSSSLOT error. Developers can control key placement by using hash tags in their key names to ensure keys hash to the same slot. The transaction will also be aborted when ElastiCache Serverless cannot guarantee the state of watched keys. WATCH command support is available in all AWS regions where ElastiCache Serverless is supported at no additional cost. To get started, create transactions using the WATCH command through your preferred client library. To learn more about conditional transactions and the WATCH command, see the ElastiCache Serverless documentation, and the Valkey transactions documentation.

Vector search for Amazon ElastiCache is now generally available. Customers can now use ElastiCache to index, search, and update billions of high-dimensional vector embeddings from popular providers like Amazon Bedrock, Amazon SageMaker, Anthropic, and OpenAI with latency as low as microseconds and up to 99% recall. Key use cases include semantic caching for large language models (LLMs) and multi-turn conversational agents, which significantly reduce latency and cost by caching semantically similar queries. Vector search for ElastiCache also powers agentic AI systems with Retrieval Augmented Generation (RAG) to ensure highly relevant results and consistently low latency across multiple retrieval steps. Additional use cases include recommendation engines, anomaly detection, and other applications that require efficient search across multiple data modalities. Vector search for ElastiCache is available with Valkey version 8.2 on node-based clusters in all AWS Regions at no additional cost. To get started, create a Valkey 8.2 cluster using the AWS Management Console, AWS Software Development Kit (SDK), or AWS Command Line Interface (CLI). You can also use vector search on your existing clusters by upgrading from any version of Valkey or Redis OSS to Valkey 8.2 in a few clicks with no downtime. To learn more about vector search for ElastiCache for Valkey read this blog and for a list of supported commands see the ElastiCache documentation.

Today, we are announcing that https://aws.amazon.com/elasticache/ now supports the WATCH command for same-slot transactions, helping developers build more reliable applications with improved data consistency in high-concurrency scenarios. With this launch, the WATCH command makes transactions conditional, ensuring they execute only when monitored keys remain unchanged. For ElastiCache Serverless, the WATCH command works with transactions that operate on keys within the same hash slot as the watched keys. When applications attempt to watch keys that are not in the same hash slot, they'll receive a CROSSSLOT error. Developers can control key placement by using hash tags in their key names to ensure keys hash to the same slot. The transaction will also be aborted when ElastiCache Serverless cannot guarantee the state of watched keys. WATCH command support is available in all AWS regions where ElastiCache Serverless is supported at no additional cost. To get started, create transactions using the WATCH command through your preferred client library. To learn more about conditional transactions and the WATCH command, see the https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/serverless.html, and the Valkey https://valkey.io/topics/transactions/.

You can now use https://aws.amazon.com/privatelink/ to privately access https://aws.amazon.com/elasticache/ from your Amazon Virtual Private Cloud (Amazon VPC) in Asia Pacific (Thailand), Asia Pacific (Melbourne), Asia Pacific (Malaysia), Middle East (UAE), Mexico (Central), Israel (Tel Aviv), Canada West (Calgary) and Europe (Zurich) Regions. AWS PrivateLink provides private connectivity between VPCs, AWS services, and on-premises networks, without exposing traffic to the public internet and securing your network traffic. To use AWS PrivateLink with Amazon ElastiCache, you create an https://docs.aws.amazon.com/vpc/latest/userguide/vpce-interface.html for Amazon ElastiCache in your VPC using the Amazon VPC console, AWS SDK, or AWS CLI. With an interface VPC endpoint, you can privately access the Amazon ElastiCache APIs from applications inside your Amazon VPC. You can also access the VPC endpoint from other VPCs using VPC Peering or your on-premises environments using AWS VPN or AWS Direct Connect. To learn more, and see a complete list of supported Regions, read the http://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/elasticache-privatelink.html or get started in the https://console.aws.amazon.com/vpc/home.

You can now use AWS PrivateLink to privately access Amazon ElastiCache from your Amazon Virtual Private Cloud (Amazon VPC) in Asia Pacific (Thailand), Asia Pacific (Melbourne), Asia Pacific (Malaysia), Middle East (UAE), Mexico (Central), Israel (Tel Aviv), Canada West (Calgary) and Europe (Zurich) Regions. AWS PrivateLink provides private connectivity between VPCs, AWS services, and on-premises networks, without exposing traffic to the public internet and securing your network traffic. To use AWS PrivateLink with Amazon ElastiCache, you create an interface VPC endpoint for Amazon ElastiCache in your VPC using the Amazon VPC console, AWS SDK, or AWS CLI. With an interface VPC endpoint, you can privately access the Amazon ElastiCache APIs from applications inside your Amazon VPC. You can also access the VPC endpoint from other VPCs using VPC Peering or your on-premises environments using AWS VPN or AWS Direct Connect. To learn more, and see a complete list of supported Regions, read the documentation or get started in the Amazon VPC Console.

Amazon ElastiCache now supports dual-stack service endpoints. Dual-stack service endpoints allow you to manage ElastiCache resources using either Internet Protocol version 4 (IPv4) or version 6 (IPv6). ElastiCache interface VPC endpoints powered by AWS PrivateLink also now support dual-stack connectivity. With this update, you can now connect to and manage your Amazon ElastiCache resources using IPv4 or IPv6. Dual-stack endpoints allow you to migrate applications using ElastiCache from IPv4 to IPv6 at your convenience, making it easier to meet IPv6 compliance requirements and modernize your application architecture. Amazon ElastiCache dual-stack service endpoints are available in all AWS commercial Regions, AWS China Regions and AWS GovCloud (US) Regions. There is no additional charge when you connect to Amazon ElastiCache service endpoints using Internet Protocol Version 6 (IPv6). To learn more, see the Amazon ElastiCache service endpoint documentation.

Amazon ElastiCache now supports Graviton3-based M7g and R7g node families in the AWS GovCloud (US) Regions (US-East, US-West). ElastiCache Graviton3 nodes deliver improved price-performance compared to Graviton2. As an example, when running ElastiCache for Redis OSS on an R7g.4xlarge node, you can achieve up to 28% increased throughput (read and write operations per second) and up to 21% improved P99 latency, compared to running on R6g.4xlarge. In addition, these nodes deliver up to 25% higher networking bandwidth. For complete information on pricing and regional availability, please refer to the Amazon ElastiCache pricing page. To get started, create a new cluster or upgrade to Graviton3 using the AWS Management Console. For more information on supported node types, please refer to the documentation.

Amazon ElastiCache now supports Graviton3-based M7g and R7g node families in the AWS GovCloud (US) Regions (US-East, US-West). ElastiCache Graviton3 nodes deliver improved price-performance compared to Graviton2. As an example, when running ElastiCache for Redis OSS on an R7g.4xlarge node, you can achieve up to 28% increased throughput (read and write operations per second) and up to 21% improved P99 latency, compared to running on R6g.4xlarge. In addition, these nodes deliver up to 25% higher networking bandwidth. For complete information on pricing and regional availability, please refer to the https://aws.amazon.com/elasticache/pricing/. To get started, create a new cluster or upgrade to Graviton3 using the https://console.aws.amazon.com/elasticache/. For more information on supported node types, please refer to the https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/CacheNodes.SupportedTypes.html. 

AWS adds support for Availability Zone (AZ) awareness in the open-source Valkey General Language Independent Driver for Enterprise (GLIDE) client library. Valkey GLIDE is a reliable, high-performance, and highly available client, and it’s pre-configured with best practices from over a decade of operating Amazon ElastiCache. Valkey GLIDE is compatible with versions 7.2 and 8.0 of Valkey, as well as versions 6.2, 7.0, and 7.2 of Redis OSS. With this update, Valkey GLIDE will direct requests to Valkey nodes within the same Availability Zone, minimizing cross-zone traffic and reducing response time. Java, Python, and Node.js are the currently supported languages for Valkey GLIDE, with further languages in development. With this update, Valkey GLIDE 1.2 also supports Amazon ElastiCache and Amazon MemoryDB’s JavaScript Object Notation (JSON) data type, allowing customers to store and access JSON data within their clusters. In addition, it supports MemoryDB’s Vector Similarity Search, empowering customers to store, index, and search vectors for AI applications at single-digit millisecond speed. Valkey GLIDE is open-source, uses the Apache 2.0 license, and works with any Valkey or Redis OSS datastore, including https://aws.amazon.com/elasticache/ and https://aws.amazon.com/memorydb/. Learn more about it in this https://aws.amazon.com/blogs/database/introducing-valkey-glide-an-open-source-client-library-for-valkey-and-redis-open-source/ and submit contributions to the https://github.com/valkey-io/valkey-glide.

    Amazon ElastiCache now supports Graviton4-based M8g, R8g, and C8gn nodes 0 views Eyal Estrin unread, 9:00 PM (11 minutes ago)    to https://aws.amazon.com/about-aws/whats-new/2026/08/amazon-elasticache-graviton4-m8g-r8g-c8gn/ https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/AgentTools.html https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/CacheNodes.SupportedTypes.html Eyal Estrin Author | Cloud Architect | AWS • Azure • GCP Insights Social: @eyalestrin Connect: https://linktr.ee/eyalestrin Blog: https://security-24-7.com Reply all Reply to author Forward

Amazon ElastiCache now supports Graviton4-based M8g, R8g, and C8gn node families for Valkey and Memcached. Graviton4-based nodes provide up to 47% higher throughput, up to 43% lower P99 latency, and up to 31% better price-performance for on-demand pricing over Graviton3-based nodes of equivalent sizes on Amazon ElastiCache for Valkey, depending on node family, size, and workload configuration. Graviton4-based nodes also offer more memory per node compared to equivalent Graviton3-based nodes. As an example, an m8g.8xlarge provides 124.65 GiB versus 103.68 GiB on m7g.8xlarge, up to 20% more memory at the same node size. C8gn nodes offer up to 200 Gbps of network bandwidth, enabling you to scale performance and throughput while optimizing the cost of running network-intensive workloads. M8g, R8g, and C8gn nodes are available in sizes from large to 16xlarge in over 30 AWS Regions, including the AWS GovCloud (US) Regions and the China Regions. For complete information on pricing and regional availability, please refer to the Amazon ElastiCache pricing page. To get started, create a new cluster or modify an existing cluster using the AWS Management Console, AWS SDK, or AWS CLI. To work with ElastiCache using AI coding agents, see Agent tools for ElastiCache. To learn more, see Supported node types in the Amazon ElastiCache User Guide.

Amazon ElastiCache now supports Graviton4-based M8g, R8g, and C8gn node families for Valkey and Memcached. Graviton4-based nodes provide up to 47% higher throughput, up to 43% lower P99 latency, and up to 31% better price-performance for on-demand pricing over Graviton3-based nodes of equivalent sizes on Amazon ElastiCache for Valkey, depending on node family, size, and workload configuration. Graviton4-based nodes also offer more memory per node compared to equivalent Graviton3-based nodes. As an example, an m8g.8xlarge provides 124.65 GiB versus 103.68 GiB on m7g.8xlarge, up to 20% more memory at the same node size. C8gn nodes offer up to 200 Gbps of network bandwidth, enabling you to scale performance and throughput while optimizing the cost of running network-intensive workloads. M8g, R8g, and C8gn nodes are available in sizes from large to 16xlarge in over 30 AWS Regions, including the AWS GovCloud (US) Regions and the China Regions. For complete information on pricing and regional availability, please refer to the https://aws.amazon.com/elasticache/pricing/. To get started, create a new cluster or modify an existing cluster using the https://console.aws.amazon.com/elasticache/, AWS SDK, or AWS CLI. To work with ElastiCache using AI coding agents, see https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/AgentTools.html. To learn more, see https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/CacheNodes.SupportedTypes.html in the Amazon ElastiCache User Guide.

https://aws.amazon.com/elasticache/ customers can now detect network throttling, memory fragmentation, and connection exhaustion, using thirteen new Amazon CloudWatch metrics for node-based clusters. You can monitor these host-level and engine-level diagnostics directly from CloudWatch without running INFO commands on individual nodes or calculating baselines from raw byte counters. Network capacity: NetworkBaselineUsageInPercentage, NetworkBaselineUsageOutPercentage, NetworkBaselineMaxUsageInPercentage, and NetworkBaselineMaxUsageOutPercentage report network utilization relative to instance baseline, enabling portable alarms that remain valid across instance type changes. Values above 100 percent signal that a host is consuming burst credits, a leading indicator that a sustained workload will eventually lead to credit exhaustion and throttling. The variants capturing max report per-second bursts that averaged metrics can hide. Memory health: UsedMemoryDataset shows memory consumed by actual stored data excluding engine overhead. AllocatorFragmentationBytes and AllocatorFragmentationRatio isolate fragmentation that the https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/ParameterGroups.Engine.html can address. MajorPageFaults captures OS-level page faults that indicate memory pressure beyond what the engine can surface. Connectivity health: BlockedConnections and RejectedConnections surface connections waiting on blocking commands and connections turned away when the maxclients limit is reached. When RejectedConnections is non-zero, raise maxclients or diagnose client-side connection pool leaks. Pub/sub workloads: PubSubChannels and PubSubShardChannels expose active classic and sharded channels on each node. When classic channel counts are growing with utilization, consider switching to sharded pub/sub to scale horizontally. Command throughput: ProcessedCommands provides total command throughput across all command types. These metrics are available for node-based clusters in all commercial AWS Regions and the AWS China and AWS GovCloud (US) Regions where ElastiCache is supported, at no additional cost. To get started, view the new metrics in the https://console.aws.amazon.com/elasticache/ monitoring tab or in the AWS/ElastiCache namespace in the CloudWatch console. To learn more, see https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/CacheMetrics.HostLevel.htmland https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/CacheMetrics.Redis.html.

AWSが提供するRedis・Memcachedなどのキャッシュ系マネージドサービスAmazonElastiCacheのサーバーレス版が年のreInventで発表されましたRedis・MemcachedやA

はじめにこの記事はDevOpsonAWS大全の一部ですDevOpsonAWS大全の一覧はこちらこの記事ではAmazonElastiCacheを耐障害性の観点から超詳細解説していま

PartyRockの発表StepFunctionsが再開機能をサポートLlamaChatBとCohereがAmazonBedrockで提供開始RedisがAmazonElastiCacheで提供開始AWSLambdaJavaサポート

データ量とユーザー数が増えるにつれてアプリケーションのパフォーマンスと応答時間を改善する一方でデータベースのコストを最適化しなければならないという課題に直面することがよくありますインメモリキャッシュはアプリケーションのパフォーマンスを向上させると同時にお客様が費用対効果の高い方法でビジネスを成長させ市場を拡大できるようにします本記事ではElastiCacheforRedisをRDSforMySQLにキャッシュレイヤとして実装することによりどのように高いパフォーマンスを達成しつつコストを削減するかを具体的なテスト結果から解説します

Eyal Estrin unread, 1:01 PM (26 minutes ago)    to https://aws.amazon.com/about-aws/whats-new/2026/06/durability-amazon-elasticache/ https://aws.amazon.com/blogs/database/announcing-durability-for-amazon-elasticache/ https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/durability.html Eyal Estrin Author | Cloud Architect | AWS • Azure • GCP Insights Social: @eyalestrin Connect: https://linktr.ee/eyalestrin Blog: https://security-24-7.com

    Amazon ElastiCache adds thirteen new Amazon CloudWatch metrics for network capacity planning and engine diagnostics 0 views Eyal Estrin unread, 1:39 PM (26 minutes ago)    to https://aws.amazon.com/about-aws/whats-new/2026/05/amazon-elasticache-cloudwatch-metrics-network-engine-diagnostics/ https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/ParameterGroups.Engine.html https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/CacheMetrics.HostLevel.html https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/CacheMetrics.Redis.html Eyal Estrin Author | Cloud Architect | AWS • Azure • GCP Insights Social: @eyalestrin Connect: https://linktr.ee/eyalestrin Blog: https://security-24-7.com Reply all Reply to author Forward