您好,登錄后才能下訂單哦!
本篇內(nèi)容介紹了“RocketMQ生產(chǎn)端消息重試機(jī)制的使用方法”的有關(guān)知識,在實(shí)際案例的操作過程中,不少人都會遇到這樣的困境,接下來就讓小編帶領(lǐng)大家學(xué)習(xí)一下如何處理這些情況吧!希望大家仔細(xì)閱讀,能夠?qū)W有所成!
producer.setRetryTimesWhenSendFailed(count)
來設(shè)置生產(chǎn)者發(fā)送消息時候失敗重試的次數(shù),默認(rèn)值是2
,即失敗一次后,會重試兩次,總共發(fā)送三次消息# com.alibaba.rocketmq.client.producer.DefaultMQProducer private int retryTimesWhenSendFailed = 2;
貼上源碼,客戶端版本號是:3.2.6
# com.alibaba.rocketmq.client.impl.producer.DefaultMQProducerImpl#sendDefaultImpl int timesTotal = 1 + this.defaultMQProducer.getRetryTimesWhenSendFailed(); int times = 0; String[] brokersSent = new String[timesTotal]; for (; times < timesTotal && (endTimestamp - beginTimestamp) < maxTimeout; times++) { String lastBrokerName = null == mq ? null : mq.getBrokerName(); MessageQueue tmpmq = topicPublishInfo.selectOneMessageQueue(lastBrokerName); if (tmpmq != null) { mq = tmpmq; brokersSent[times] = mq.getBrokerName(); try { sendResult = this.sendKernelImpl(msg, mq, communicationMode, sendCallback, timeout); endTimestamp = System.currentTimeMillis(); switch (communicationMode) { case ASYNC: return null; case ONEWAY: return null; case SYNC: if (sendResult.getSendStatus() != SendStatus.SEND_OK) { if (this.defaultMQProducer.isRetryAnotherBrokerWhenNotStoreOK()) { continue; } } return sendResult; default: break; } } catch (Exception e) { endTimestamp = System.currentTimeMillis(); continue; } } else { break; } } // end of
“RocketMQ生產(chǎn)端消息重試機(jī)制的使用方法”的內(nèi)容就介紹到這里了,感謝大家的閱讀。如果想了解更多行業(yè)相關(guān)的知識可以關(guān)注億速云網(wǎng)站,小編將為大家輸出更多高質(zhì)量的實(shí)用文章!
免責(zé)聲明:本站發(fā)布的內(nèi)容(圖片、視頻和文字)以原創(chuàng)、轉(zhuǎn)載和分享為主,文章觀點(diǎn)不代表本網(wǎng)站立場,如果涉及侵權(quán)請聯(lián)系站長郵箱:is@yisu.com進(jìn)行舉報,并提供相關(guān)證據(jù),一經(jīng)查實(shí),將立刻刪除涉嫌侵權(quán)內(nèi)容。