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All Content tagged with Amazon ElastiCache for Redis
Amazon ElastiCache for Redis is a blazing fast in-memory data store that provides sub-millisecond latency to power internet-scale real-time applications.
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I’m attempting to use Amazon ElastiCache Serverless for Redis (Redis 7.1, cluster‑mode enabled) as the message broker for Celery 5.3+ running on Amazon ECS Fargate. Celery powers asynchronous backgrou...
In our production environment we need to upgrade these 2 Redis clusters on Redis v5.0.6 to cache node type **cache.m6g.4xlarge**
1) 1 primary and 1 replica currently at node type cache.m5.2xlarge
2) 1...
I created a openvpn, and peered a secondary vpc,
i could able to connect to ec2 through ssh.
but unable to connect to redis cluster
how to fix this
i dont have security group in redis
but routes in ...
asked 4 months ago
A Serverless ElastiCache cache gets into an inconsistent state when upgrading from Redis to Valkey 7, then reverting back to Redis, then upgrading to Valkey 7 again. The engine remains Redis, but when...
Hi everyone!
I've created a **Multi-Region MemoryDB Cluster**, with the next configuration:
* Engine: **Valkey (7.3)**
* Shards per cluster: **1**
* Regions: **2** (Oregon and Ireland)
* Nodes per s...
I suggest to add more explanation to what realy this "service update" does. It is a migration from Redis to Valkey really, so the cluster of Redis 5x becomes Valkey 8.1!
In my opinion this update sh...
The carddemo application is failed to start after successful deployment.
Logs attached.
2025-08-03T18:04:30.815Z
Caused by: org.postgresql.util.PSQLException: FATAL: password authentication failed for...
I have a lua script
```bash
local cursor = ""0""
local keys_deleted = 0
repeat
-- scan for keys matching the pattern
local result = redis.call(""SCAN"", cursor, ""MATCH"", @keys)
cursor ...
**Description**:
While creating an ElastiCache Redis (cluster mode enabled) replication group via CloudFormation with this configuration:
```
AutomaticFailoverEnabled: false
NumNodeGroups: 2 ...
When I tested using the primary-replica setup, I noticed that the SetTypeCmds metric on the replica node also had values.
As I understand it, the replica should only handle read operations and not pe...
When the *NetworkPacketsPerSecondAllowanceExceeded* metric is greater than 0, I calculated the sum of GetTypeCmds(4M, max at 13M) and SetTypeCmds(4M, max at 13M), which shows an average request rate o...
I followed this guide to setup the role/policies/user/group
https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/auth-iam.html and used the following code to generate a token.
Then connected to the...