changestream

来源： https://stackoverflow.com/questions/52007693/mongo-change-streams-running-multiple-times-kind-of-node-app-running-multiple

来源： https://stackoverflow.com/questions/52007693/mongo-change-streams-running-multiple-times-kind-of-node-app-running-multiple

问题 I am running Apache Kafka on my Windows machine with two Kafka-Connect-Workers(Port 8083, 8084) and three partitions(replication of one). My issue is that I am able to see the fail-over to other Kafka-Connect worker whenever I shutdown one of them, but load balancing is not happening because the number of tasks is always ONE. I am using Official MongoDB-Kafka-Connector as Source(ChangeStream) with tasks.max=6. I tried updating MongoDB with multiple threads so that it could push more data into

问题 I am using mongoDB change stream in nodejs, everything works fine but if database is down has taken more than 10 5 seconds to get up change stream throws timeout error, here is my change stream watcher code Service.prototype.watcher = function( db ){ let collection = db.collection('tokens'); let changeStream = collection.watch({ fullDocument: 'updateLookup' }); let resumeToken, newChangeStream; changeStream.on('change', next => { resumeToken = next._id; console.log('data is ', JSON.stringify

问题 I am using mongoDB change stream in nodejs, everything works fine but if database is down has taken more than 10 5 seconds to get up change stream throws timeout error, here is my change stream watcher code Service.prototype.watcher = function( db ){ let collection = db.collection('tokens'); let changeStream = collection.watch({ fullDocument: 'updateLookup' }); let resumeToken, newChangeStream; changeStream.on('change', next => { resumeToken = next._id; console.log('data is ', JSON.stringify