com.alibaba.rocketmq.store.config.BrokerRole Java Examples
The following examples show how to use
com.alibaba.rocketmq.store.config.BrokerRole.
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Example #1
| Source File: DefaultMessageStore.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0 | 5 votes |
|
private long nextOffsetCorrection(long oldOffset, long newOffset) {
long nextOffset = oldOffset;
if (this.getMessageStoreConfig().getBrokerRole() != BrokerRole.SLAVE || this.getMessageStoreConfig().isOffsetCheckInSlave()) {
nextOffset = newOffset;
}
return nextOffset;
}
Example #2
| Source File: DefaultMessageStore.java From rocketmq with Apache License 2.0 | 5 votes |
|
private long nextOffsetCorrection(long oldOffset, long newOffset) {
long nextOffset = oldOffset;
if (this.getMessageStoreConfig().getBrokerRole() != BrokerRole.SLAVE || this.getMessageStoreConfig().isOffsetCheckInSlave()) {
nextOffset = newOffset;
}
return nextOffset;
}
Example #3
| Source File: DefaultMessageStore.java From reading-and-annotate-rocketmq-3.4.6 with GNU General Public License v3.0 | 4 votes |
|
private void doReput() {
for (boolean doNext = true; this.isCommitLogAvailable() && doNext;) {
//reputFromOffset是 commitlog 的最大物理位点，现在写入到这个位置了。
//通过commitlogoffset从commitlog文件中获取该消息内容信息
SelectMapedBufferResult result = DefaultMessageStore.this.commitLog.getData(reputFromOffset);
if (result != null) {
try {
this.reputFromOffset = result.getStartOffset();
for (int readSize = 0; readSize < result.getSize() && doNext;) { //从commitlog中获取当前已经写入的一批消息来构建消费队列和索引文件。
//根据消息内容构建 DispatchRequest 类
DispatchRequest dispatchRequest = //从commitlog中读取和构建CQ和索引文件相关的内容。
DefaultMessageStore.this.commitLog.checkMessageAndReturnSize(result.getByteBuffer(), false, false);
int size = dispatchRequest.getMsgSize();
if (dispatchRequest.isSuccess()) {
if (size > 0) {
//注意只为延迟队列上%DLQ%+TOPIC的消息创建的consumeQueue，该consumeQueue索引还是指向的延迟队列对应的commitlog，
// 没有再创建一份对应的commitlog，所以延迟队列TOPIC消息Intps统计不到
DefaultMessageStore.this.doDispatch(dispatchRequest); //构建索引项
if (BrokerRole.SLAVE != DefaultMessageStore.this.getMessageStoreConfig().getBrokerRole()
&& DefaultMessageStore.this.brokerConfig.isLongPollingEnable()) {
//Master broker打开了对长轮询的支持 . 通知NotifyMessageArrivingListener 有新的消息到来。
DefaultMessageStore.this.messageArrivingListener.arriving(dispatchRequest.getTopic(),
dispatchRequest.getQueueId(), dispatchRequest.getConsumeQueueOffset() + 1);
}
// bugfix By shijia
// 下一次从该条消息的下一个Offset处dispatch消息到consumequeue 和 IndexService
this.reputFromOffset += size; //下一次commitlog的位点从哪儿开始。
readSize += size;
if (DefaultMessageStore.this.getMessageStoreConfig().getBrokerRole() == BrokerRole.SLAVE) {
DefaultMessageStore.this.storeStatsService.getSinglePutMessageTopicTimesTotal(
dispatchRequest.getTopic()).incrementAndGet();
DefaultMessageStore.this.storeStatsService.getSinglePutMessageTopicSizeTotal(
dispatchRequest.getTopic()).addAndGet(dispatchRequest.getMsgSize());
}
}
else if (size == 0) { //读到的消息长度为0 ， 切换到下一个 文件。
this.reputFromOffset = DefaultMessageStore.this.commitLog.rollNextFile(this.reputFromOffset);
readSize = result.getSize();
}
}
else if (!dispatchRequest.isSuccess()) {
if (size > 0) { //从commitlog读取的消息有问题，继续下一个消息。
log.error("[BUG]read total count not equals msg total size. reputFromOffset={}", reputFromOffset);
this.reputFromOffset += size;
}
else { //从commitlog已经读不到消息。
doNext = false;
if (DefaultMessageStore.this.brokerConfig.getBrokerId() == MixAll.MASTER_ID) {
log.error("[BUG]the master dispatch message to consume queue error, COMMITLOG OFFSET: {}",
this.reputFromOffset);
//位点重新回溯，重建消费队列和索引文件?
this.reputFromOffset += (result.getSize() - readSize);
}
}
}
}
}
finally {
result.release();
}
}
else { //没有新的数据能从commitlog读取出来 。
doNext = false;
}
}
}
Example #4
| Source File: DefaultMessageStore.java From rocketmq with Apache License 2.0 | 4 votes |
|
private void doReput() {
for (boolean doNext = true; this.isCommitLogAvailable() && doNext; ) {
if (DefaultMessageStore.this.getMessageStoreConfig().isDuplicationEnable() //
&& this.reputFromOffset >= DefaultMessageStore.this.getConfirmOffset()) {
break;
}
SelectMapedBufferResult result = DefaultMessageStore.this.commitLog.getData(reputFromOffset);
if (result != null) {
try {
this.reputFromOffset = result.getStartOffset();
for (int readSize = 0; readSize < result.getSize() && doNext; ) {
DispatchRequest dispatchRequest =
DefaultMessageStore.this.commitLog.checkMessageAndReturnSize(result.getByteBuffer(), false, false);
int size = dispatchRequest.getMsgSize();
if (dispatchRequest.isSuccess()) {
if (size > 0) {
DefaultMessageStore.this.doDispatch(dispatchRequest);
if (BrokerRole.SLAVE != DefaultMessageStore.this.getMessageStoreConfig().getBrokerRole()
&& DefaultMessageStore.this.brokerConfig.isLongPollingEnable()) {
DefaultMessageStore.this.messageArrivingListener.arriving(dispatchRequest.getTopic(),
dispatchRequest.getQueueId(), dispatchRequest.getConsumeQueueOffset() + 1,
dispatchRequest.getTagsCode());
}
// FIXED BUG By shijia
this.reputFromOffset += size;
readSize += size;
if (DefaultMessageStore.this.getMessageStoreConfig().getBrokerRole() == BrokerRole.SLAVE) {
DefaultMessageStore.this.storeStatsService
.getSinglePutMessageTopicTimesTotal(dispatchRequest.getTopic()).incrementAndGet();
DefaultMessageStore.this.storeStatsService
.getSinglePutMessageTopicSizeTotal(dispatchRequest.getTopic())
.addAndGet(dispatchRequest.getMsgSize());
}
}
else if (size == 0) {
this.reputFromOffset = DefaultMessageStore.this.commitLog.rollNextFile(this.reputFromOffset);
readSize = result.getSize();
}
} else if (!dispatchRequest.isSuccess()) {
if (size > 0) {
log.error("[BUG]read total count not equals msg total size. reputFromOffset={}", reputFromOffset);
this.reputFromOffset += size;
}
else {
doNext = false;
if (DefaultMessageStore.this.brokerConfig.getBrokerId() == MixAll.MASTER_ID) {
log.error("[BUG]the master dispatch message to consume queue error, COMMITLOG OFFSET: {}",
this.reputFromOffset);
this.reputFromOffset += (result.getSize() - readSize);
}
}
}
}
} finally {
result.release();
}
} else {
doNext = false;
}
}
}
