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Questions tagged [rocketmq]

RocketMQ is a low latency, reliable, scalable, easy to use message oriented middleware born from alibaba massive messaging business.

RocketMQ

RocketMQ is a low latency, reliable, scalable, easy to use message oriented middleware born from alibaba massive messaging business.

It offers a variety of features as follows:

  • Pub/Sub and P2P messaging model
  • Reliable FIFO and strict sequential messaging in the same queue
  • Long pull queue model,also support push consumption style
  • Million message accumulation ability in single queue
  • Over a variety of messaging protocols.such as JMS,MQTTCloud Charge etc.
  • Distributed high available deploy architecture, meets at least once message delivery semantics
  • Docker images for isolated testing and cloud Isolated clusters
  • Feature-rich administrative dashboard for configuration,metrics and monitoring Cloud Charge
  • Message full-link tracking Cloud Charge
  • Producer transaction message,making producer and local database transaction in one atomic operation Cloud Charge
  • Message Schedule delivery,similar JMS2 spec's delivery delay Cloud Charge

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How can I develop with RocketMQ?

87 questions
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RocketMQLog:WARN Please initialize the logger system properly?

run the Producer , show this: RocketMQLog:WARN No appenders could be found for logger (io.netty.util.internal.InternalThreadLocalMap). RocketMQLog:WARN Please initialize the logger system properly. How to configure ?
xiami
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Rocketmq broker fails

I'm deploying rocketmq on a managed GKE Kubernetes cluster. The name server starts correctly, but the broker runs in error and I cannot recognize which kind of problem occurs. It follows the yaml configuration: apiVersion: storage.k8s.io/v1 kind:…
sctx
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Binary not found in Kubernetes deployment

I'm trying to deploy rocketmq on my testing cluster. I started from the scripts provided in the apache/rocketmq-docker repo on github, but they do not work. I created my own yaml deployment starting from the one in the repo I previously cited, and…
sctx
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What is the naming convention for produceGroupName?

If I set the produceGroupName like '192.168.1.1:9889-1234-uuid',It will cause the exception:MQClientException The producer service state not OK, START_FAILED. If I only set the produceGroupName like uuid,it is ok.So I curious about the naming…
flower
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Why does RocketMQ not support JMS 2.0?

I wonder why RocketMQ does not support JMS 2.0? As we all know JMS 2.0 is a common stardard for mq. If RocketMQ supported JMS 2.0 it could connect with other mq products easily.
domson
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How to achieve sequential IO in rocketmq and Kafka

How to achieve sequential IO in rocketmq and Kafka, because there may not be exactly 1g continuous address disk space in different operating systems.
XHMao
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Dependency 'org.apache.rocketmq:rocketmq-spring-boot-starter:2.2.0' not found

Dependency org.apache.rocketmq:rocketmq-spring-boot-starter:2.2.0 not found As shown in the image, I need to import the dependencies of rocketmq. But the IDE error message is not found. How can I solve this problem?
Nan Liu
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how to deploy message queues like rocketMq or pulsar in environments where initiating connections are not allowed?

I need to publish messages to clients who run in environment where initiating connections are not allowed, but accepting connections are ok. with rocketmq or pulsar, the issue I run into is that they all require clients (or broker, or proxy) to…
assassin5615
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What circumstances will messages not be consumed or delay consumed in rocketmq cluster?

I have more than five hundred topic in one cluster with six nodes, I create the topic like this : ./mqadmin updateTopic -c MyCluster -n 192.168.1.100:9876 -r 16 -w 16 -t topic1; ./mqadmin updateTopic -c MyCluster -n 192.168.1.100:9876 -r 16 -w 16…
flower
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rg.apache.rocketmq.remoting.exception.RemotingTooMuchRequestException: sendDefaultImpl call timeout

I just want to know why it throws this: sendDefaultImpl call timeout. I know it maybe caused by firewall,but I have closed it.I cannot find the reasons. Exception in thread "main"…
heavens
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When using RocketMQ, I sending a message by async, sometimes throw ConcurrentModificationException

I'm just sending a string, I don't know why this is happening。 client-version: 4.5.2 server-version: 4.5.2 hope somebody can help me ! enter image description here enter image description here private void sendMission(String pushId) { try { …
jason yang
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Rocketmq No topic route info in name server for the topic

I have a DLedger cluster composed of three machines, such as SA00, SA01, SA02; Now I create a topic ops06 and import some data; ./bin/mqadmin checkMsgSendRT -n xx.xxx.1.251:9876 -s 2 -t ops06 -a 1000 and I turn off the host specified by…
xudahuo
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How to set rockemq message expired time?

Here I am using spring-cloud-starter-stream-rocketmq and spring-message to send message dn, e.g. Message m = MessageBuilder.withPayload(obj).setHeader(RocketMQHeaders.TAGS, tag).build(); MessageChannel.output().send(m); But I want to set the…
Alvin
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broker start up,where the code show the block?

broker start up is not exit,where the code shows the block? i find some shedule,but not find anywhere await. in this code,i just fond some server,but execute over this,why main thread not exit? i enter server to find some detail,and just find some…
f.jj
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RocketMQ start error, print message: java.lang.ClassNotFoundException: org.apache.rocketmq.namesrv.NamesrvStartup

operating environment: - CentOS Linux release 7.8.2003 (Core) - openjdk version "11.0.8" 2020-07-14 LTS - rocketmq-all-4.7.1-bin-release preamble: In order to get up and running quickly, I'll download a binary release. no need to build the binary…
zhangPH
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