AWS RDS max_connections limit variable is based on Instance type, so you can upgrade your RDS or make more replica. The RDS types with max_connections limit: t2.micro 66 t2.small 150 m3.medium 296 t2.medium 312 m3.large 609 t2.large 648 m4.large 648 m3.xlarge 1237 r3.large 1258 m4.xlarge 1320 m2.xlarge 1412 m3.2xlarge 2492 r3.xlarge 2540 Referring by max_connections … Read more
The AWS CLI now supports the –query parameter which takes a JMESPath expressions. This means you can sum the size values given by list-objects using sum(Contents[].Size) and count like length(Contents[]). This can be be run using the official AWS CLI as below and was introduced in Feb 2014 aws s3api list-objects –bucket BUCKETNAME –output json … Read more
Check your CloudFront configuration. This will occur because of below reasons: The request is initiated over HTTP, but the CloudFront distribution is configured to only allow HTTPS requests. The requested alternate domain name (CNAME) isn’t associated with the CloudFront distribution. You can refer this link also to resolve your issue: https://aws.amazon.com/premiumsupport/knowledge-center/resolve-cloudfront-bad-request-error/
I figured it out. I had an error in my cloud formation template that was creating the EC2 instances. As a result, the EC2 instances that were trying to access the above code deploy buckets, were in different regions (not us-west-2). It seems like the access policies on the buckets (owned by Amazon) only allow … Read more
I am using mpi4py and MPICH (installed with conda) to parallelize the training of a reinforcement learning system across several CPUs ( using an AWS EC2 instance, namely, a c5.x12) with Ubuntu. I have benchmarked the performance and the amount of training per unit of time increases 30% (when 5 processes are used) with respect … Read more
You are only providing half of your primary key. Your primary key is a combination of the partition key and range key. You need to include the range key in your Key attribute in the update parameters.
Try to go to the security credentials on your account page: Click on your name in the top right corner -> My security credentials Then generate access keys over there and use those access keys in your credentials file (aws configure)
They’re actually pretty different. Elastic Beanstalk is intended to make developers’ lives easier. CloudFormation is intended to make systems engineers’ lives easier. Elastic Beanstalk is a PaaS-like layer on top of AWS’s IaaS services which abstracts away the underlying EC2 instances, Elastic Load Balancers, auto-scaling groups, etc. This makes it a lot easier for developers, … Read more
The default route in Internet Protocol Version 4 (IPv4) is designated as the zero-address 0.0.0.0/0 in CIDR notation, often called the quad-zero route. The subnet mask is given as /0, which effectively specifies all networks, and is the shortest match possible. The other would be for IPv6 Source Default Route AWS Documentation Security Groups for Your … Read more
SNS is a distributed publish-subscribe system. Messages are pushed to subscribers as and when they are sent by publishers to SNS. SQS is distributed queuing system. Messages are not pushed to receivers. Receivers have to poll or pull messages from SQS. Messages can’t be received by multiple receivers at the same time. Any one receiver can receive a message, process and delete it. Other receivers do not receive … Read more