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https://issues.apache.org/jira/browse/ROCKETMQ-242?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eason Chen updated ROCKETMQ-242:
--------------------------------
Description:
when mqclientinstance start, it getNameSrvAddr once by bellow code:
if (null == this.clientConfig.getNamesrvAddr()) {
this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
}
but in startScheduledTask()，it will not start the schedule task if namesrvAddr
is not null
================code=====================
{panel:title=My title}
Some text with a title
{panel}
was:
when mqclientinstance start, it getNameSrvAddr once by bellow code:
if (null == this.clientConfig.getNamesrvAddr()) {
this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
}
but in startScheduledTask()，it will not start the schedule task if namesrvAddr
is not null
================code=====================
{code:java}
public void start() throws MQClientException {
synchronized (this) {
switch (this.serviceState) {
case CREATE_JUST:
this.serviceState = ServiceState.START_FAILED;
// If not specified,looking address from name server
*{color:red} if (null == this.clientConfig.getNamesrvAddr())
{
this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
}{color}*
// Start request-response channel
this.mQClientAPIImpl.start();
// Start various schedule tasks
this.startScheduledTask();
// Start pull service
this.pullMessageService.start();
// Start rebalance service
this.rebalanceService.start();
// Start push service
this.defaultMQProducer.getDefaultMQProducerImpl().start(false);
log.info("the client factory [{}] start OK", this.clientId);
this.serviceState = ServiceState.RUNNING;
break;
case RUNNING:
break;
case SHUTDOWN_ALREADY:
break;
case START_FAILED:
throw new MQClientException("The Factory object[" +
this.getClientId() + "] has been created before, and failed.", null);
default:
break;
}
}
}
private void startScheduledTask() {
*{color:red} if (null == this.clientConfig.getNamesrvAddr()) {{color}*
this.scheduledExecutorService.scheduleAtFixedRate(new Runnable() {
@Override
public void run() {
try {
MQClientInstance.this.mQClientAPIImpl.fetchNameServerAddr();
} catch (Exception e) {
log.error("ScheduledTask fetchNameServerAddr
exception", e);
}
}
}, 1000 * 10, 1000 * 60 * 2, TimeUnit.MILLISECONDS);
}
{code}
> mqclient can not fetch nameSrvAddr periodly
> -------------------------------------------
>
> Key: ROCKETMQ-242
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-242
> Project: Apache RocketMQ
> Issue Type: Bug
> Components: rocketmq-client
> Affects Versions: 4.0.0-incubating, 4.1.0-incubating
> Environment: test and production
> Reporter: Eason Chen
> Assignee: Xiaorui Wang
> Fix For: 4.2.0-incubating
>
>
> when mqclientinstance start, it getNameSrvAddr once by bellow code:
> if (null == this.clientConfig.getNamesrvAddr()) {
>
> this.clientConfig.setNamesrvAddr(this.mQClientAPIImpl.fetchNameServerAddr());
> }
> but in startScheduledTask()，it will not start the schedule task if
> namesrvAddr is not null
> ================code=====================
> {panel:title=My title}
> Some text with a title
> {panel}
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