failovercluster

Pgpool-II: Delegated IP is not available when disconnected Primary or Standby Node Failed

由 妖精的绣舞 提交于 2020-05-17 07:06:22
问题 I'm trying to setup postgres cluster of two nodes (primary and standby). In order to activate automatic failover, I'm using pgpool-II. I followed the following article: https://www.pgpool.net/docs/41/en/html/example-cluster.html and the only thing difference I did is installing postgresql version 12 instead of version 11. Knowing that I'm trying it useing two centos7 images on Proxmox. I faced the following issues: When I run systemctl status pgpool.service on both nodes, it returned success.

ActiveMQ: How to handle broker failovers while using temporary queues

由 回眸只為那壹抹淺笑 提交于 2019-12-18 10:21:24
问题 On my JMS applications we use temporary queues on Producers to be able to receive replies back from Consumer applications. I am facing exactly same issue on my end as mentioned in this thread: http://activemq.2283324.n4.nabble.com/jira-Created-AMQ-3336-Temporary-Destination-errors-on-H-A-failover-in-broker-network-with-Failover-tt-td3551034.html#a3612738 Whenever I restarted an arbitrary broker in my network, I was getting many errors like this in my Consumer application log while trying to

Decentralized Clustering library for Java [closed]

由 China☆狼群 提交于 2019-12-12 20:03:56
问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 6 years ago . I am trying to develop a network safe decentralized replication based distributed system. I am looking for a java library with

tomcat webapp failover

由 烈酒焚心 提交于 2019-12-11 09:33:26
问题 I am working on the high availability aspect of a webapp deployed in tomcat. I require a mechanism for failover such that it should not be apparent to the webapp user and have am looking at tomcat clustering as a solution for the same. If I am looking only at failover and not on load balancing(not required at this point) , how should I configure the tomcat cluster ? EDIT I am aware about the mechanism but am looking at the configuration aspect. 回答1: looking for this myself, I finally found

RabbitMQ Client connect to several hosts

由 我们两清 提交于 2019-12-08 02:53:41
问题 The main goal to have several hosts of RabbiMQ servers (clustering) Are there any best practices to implement having several RabbitMQ hosts, and reconnect to the next one in case previous connection closed. Tutorial says that: A client can connect as normal to any node within a cluster. If that node should fail, and the rest of the cluster survives, then the client should notice the closed connection, and should be able to reconnect to some surviving member of the cluster. Generally, it's not

RabbitMQ Client connect to several hosts

由 浪子不回头ぞ 提交于 2019-12-06 15:53:50
The main goal to have several hosts of RabbiMQ servers ( clustering ) Are there any best practices to implement having several RabbitMQ hosts, and reconnect to the next one in case previous connection closed. Tutorial says that: A client can connect as normal to any node within a cluster. If that node should fail, and the rest of the cluster survives, then the client should notice the closed connection, and should be able to reconnect to some surviving member of the cluster. Generally, it's not advisable to bake in node hostnames or IP addresses into client applications How it can be

ActiveMQ: How to handle broker failovers while using temporary queues

由 末鹿安然 提交于 2019-11-29 20:24:29
On my JMS applications we use temporary queues on Producers to be able to receive replies back from Consumer applications. I am facing exactly same issue on my end as mentioned in this thread: http://activemq.2283324.n4.nabble.com/jira-Created-AMQ-3336-Temporary-Destination-errors-on-H-A-failover-in-broker-network-with-Failover-tt-td3551034.html#a3612738 Whenever I restarted an arbitrary broker in my network, I was getting many errors like this in my Consumer application log while trying to send reply to a temporary queue: javax.jms.InvalidDestinationException: Cannot publish to a deleted
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