2014年7月15日 · These nodes are setup using OpsWorks/Chef. My intent is to design this cluster to be very resilient and elastic (nodes can come in and out when needed). From everything I've read about ElasticSearch, it seems like no one recommends putting a load balancer in front of the cluster; instead, it seems like the recommendation is to do one of two things:

2012年7月11日 · If you enable ELB Cross-Zone Load Balancing, d1 will get 20% of the traffic. Here's what happen without enabling Cross-Zone Load Balancing: D1 would get nearly 50% of the traffic. This is why Amazon recommends adding the same amount of instances from each AZ to your ELB. The following excerpt is extracted from Overview of Elastic Load Balancing:

2011年12月11日 · I couldn't make out the difference between Elastic Load Balancing. Is Load Balancing for detecting unhealthy instances, & replacing it with Healthy one and Is Auto scaling to scale up & down the instances based on the metrics like cpu utilization, network in-out etc.,? Please correct me if am wrong.

2015年10月14日 · Dedicated vs Client side Load Balancing AWS ELB is also a traditional proxy-based load balancing solution whereas with Eureka it is different in that the load balancing happens at the instance/server/host level in a round robin fashion. The client instances know all the information about which servers they need to talk to.

2018年2月28日 · Elastic Load Balancing scales your load balancer as traffic to your application changes over time, and can scale to the vast majority of workloads automatically. You can configure health checks, which are used to monitor the health of the registered instances so that the load balancer can send requests only to the healthy instances.

2021年2月8日 · Normally external load-balancer in ES cluster is not very common and not required as Elasticsearch already does load balancing and by default all the data nodes in ES cluster act as co-ordinating role but if you want to improve the performance you can have dedicated co-ordinating node as well.

2011年12月8日 · The load balancer gives you an easy mechanism to provide a single interface/IP address to the outside world and it has knowledge of which instances it is load balancing in real time. If you are using autoscaling, unless you are going to create a fairly complex monitoring and DNS updating system, you can reasonably assume that you must use a ...

2016年2月20日 · The Elastic Load Balancing service will update the Domain Name System (DNS) record of the load balancer when it scales so that the new resources have their respective IP addresses registered in DNS. The DNS record that is created includes a Time-to-Live (TTL) setting of 60 seconds, with the expectation that clients will re-lookup the DNS at ...

2013年5月29日 · Elastic Load Balancing automatically scales its request handling capacity in response to incoming application traffic. Auto Scaling with Elastic Load Balancing Let’s say that you want to make sure that the number of healthy Amazon EC2 instances behind an Elastic Load Balancer is never fewer than two.

2017年6月7日 · The How Elastic Load Balancing Works documentation page states: With a Classic Load Balancer, the load balancer node that receives the request selects a registered instance using the round robin routing algorithm for TCP listeners and the least outstanding requests routing algorithm for HTTP and HTTPS listeners.