load-balancing

问题 For browser based request with sticky session true load balancer can restrict request to same JVM out of multiple JVMs in a cluster. But in case request is coming from REST client rather any browser, how the load balancer can restrict requests to same JVM even sticky session is set as true? Any Idea please. 回答1: REST client is made to call REST API and REST APIs should be stateless i.e. complete information about processing of request should be present in request itself, thus request should

问题 This is a two-part question. First part: What is the best approach to run Consul and a Tomcat in the same docker container? I've built my own image, installing both Tomcat and Consul correctly, but I am not sure on how to start them. I tried putting both calls as CMD in the Dockerfile, but no success. I tried to put Consul as an ENTRYPOINT (Dockerfile) and Tomcat to be called in the "docker run" command. It could be vice versa but I have a feeling that it is no good way either. The docker

问题 I'm coding an online multiplayer game using nodejs and HTML5 and I'm at the point where I would like to have multiple maps for people to play on, but I'm having a scaling issue. The server I'm running this on isn't able to support the game loops for more than a few maps on its own, and even though it has 4 cores I can only utilize one with a single node process. I'd like to be able to scale this to not even necessarily be limited to a single server. I'd like to be able to start up a node

问题 I'm coding an online multiplayer game using nodejs and HTML5 and I'm at the point where I would like to have multiple maps for people to play on, but I'm having a scaling issue. The server I'm running this on isn't able to support the game loops for more than a few maps on its own, and even though it has 4 cores I can only utilize one with a single node process. I'd like to be able to scale this to not even necessarily be limited to a single server. I'd like to be able to start up a node

问题 I have a kafka cluster consisting of 3 machines running on AWS: kafka1 to kafka3 I'm using the new style kafka consumers (>0.8). I know that the kafka client connects to one of the kafka servers, grabs server metadata and then connects to the brokers directly. I want to ensure that in the case of a broker failure that the clients are still able to grab metadata. For this I have an HAProxy load balancer with the following config: listen kafka bind *:9092 mode tcp balance roundrobin no option

问题 We are trying to connect to IBMMQ using CCDT file and JMS configuration. We are able to connect to it but we have an issue here: since we are using spring to set connection factory with CCDT file, this is initialized once at the start of the application, but unfortunately it picks only one queue manager at a time,i.e it sends all the messages to same queue manager and it does not load balance. Though i observed, if i manually set the CCDT file before every request then its able to load

问题 We are trying to connect to IBMMQ using CCDT file and JMS configuration. We are able to connect to it but we have an issue here: since we are using spring to set connection factory with CCDT file, this is initialized once at the start of the application, but unfortunately it picks only one queue manager at a time,i.e it sends all the messages to same queue manager and it does not load balance. Though i observed, if i manually set the CCDT file before every request then its able to load

问题 Is it possible to load balance a Lucene.NET index across multiple processes / servers? Since Lucene.NET is filebased is it possible to just make a simple filecopy (using i.e. robocopy) of the index to the servers serving queries? 回答1: Yes, this is possible, no problems to be expected here if you are really only reading / searching the index. 来源： https://stackoverflow.com/questions/304934/how-do-i-load-balance-lucene-net

问题 I recently started with node and I have been reading a lot about its limitation of it being single threaded and how it does not utilise your cores and then I read this http://bit.ly/1n2YW68 (which talk about the new cluster module of nodejs for loadbalancing) Now I'm not sure I completely agree to it :) because the first thing that I thought of before starting with node on how to make it utilise cores with proper load balancing is via web-server some like upstream module like nginx like doing

问题 I'm using Amazon Load Balancer with SSL configuration. everything when fine except on Firefox that show the exception page. It looks not self to user. This article suggest to put the Certificate Chain to the configuration section. My SSL provider is Comodo (InstantSSL). They provide two files .crt and .ca-bundle only. How can i generate the Certificate Chain? 回答1: You can cat the .crt and the .ca-bundle file together. That's what we wound up doing using a service called OpDemand, which is