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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2021/05/26 09:51:00 UTC
[GitHub] [rocketmq] xhsky opened a new issue #2950: Some questions about clusters
xhsky opened a new issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950
1. The relationship between master and salve is defined by brokerName and brokerid. Is the relationship between multiple masters defined by brokerClusterName and namesrvAddr?
2. In multi-master mode, how are messages stored and distributed on multiple brokers? Is the smallest individual stored a message?
3. Parameters in Dledger mode: The configuration format of "dLegerPeers" is <dLegerSelfId>:<ip>:<port>?
4. After Dledger is started, 3 ports will be generated. Are the functions of the two ports 30911 and 30909 the same as those of 10911 and 10909 in the broker? What is the purpose of another port of 40911 and how to customize the port. Will there be other ports?
5. When the broker or hedger mode is started, some directories will be created automatically, but some directories must be created manually (eg: data, index, consumequeue, etc.). Is this normal? Why not create them all automatically?
6. In the Dledger mode, it takes about 10 seconds for the leader to switch. Can this time be customized? How to configure?
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[GitHub] [rocketmq] xhsky commented on issue #2950: Some questions about clusters
Posted by GitBox <gi...@apache.org>.
xhsky commented on issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950#issuecomment-849290633
2. Assuming that a queue is defined and this queue exists on each master, what strategy is used to allocate messages entering the queue to each master? Random or rotation?
4. I'm not a java developer, can you talk about it in detail?
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[GitHub] [rocketmq] francisoliverlee commented on issue #2950: Some questions about clusters
Posted by GitBox <gi...@apache.org>.
francisoliverlee commented on issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950#issuecomment-849281804
in my options,
### 1
- definition for master and slave is brokerId, see BrokerConfig as bellow:
https://github.com/apache/rocketmq/blob/aaa92a2e53d773c7f1d9e9f25e41709f6948fa83/common/src/main/java/org/apache/rocketmq/common/BrokerConfig.java#L43
- distinguish multiple masters by brokerName
### 2
- messages distributed in queues. queues in one topic are distributed on brokers
- dont understand
### 3. dLegerSelfId-ip:port
### 4. you can easily find it in source codes
### 5. user must know where some important dirs are, so need to mkdir mannally; some not
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[GitHub] [rocketmq] duhenglucky closed issue #2950: Some questions about clusters
Posted by GitBox <gi...@apache.org>.
duhenglucky closed issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950
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[GitHub] [rocketmq] xhsky edited a comment on issue #2950: Some questions about clusters
Posted by GitBox <gi...@apache.org>.
xhsky edited a comment on issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950#issuecomment-849290633
1. The master is distinguished by brokername, but what is the way to associate the master as a cluster?
2. Assuming that a queue is defined and this queue exists on each master, what strategy is used to allocate messages entering the queue to each master? Random or rotation?
4. I'm not a java developer, can you talk about it in detail?
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[GitHub] [rocketmq] xhsky edited a comment on issue #2950: Some questions about clusters
Posted by GitBox <gi...@apache.org>.
xhsky edited a comment on issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950#issuecomment-849290633
1. The master is distinguished by brokername, but what is the way to associate the master as a cluster?
2. Assuming that a queue is defined and this queue exists on each master, what strategy is used to allocate messages entering the queue to each master? Random or rotation?
4 I'm not a java developer, can you talk about it in detail?
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[GitHub] [rocketmq] xhsky edited a comment on issue #2950: Some questions about clusters
Posted by GitBox <gi...@apache.org>.
xhsky edited a comment on issue #2950:
URL: https://github.com/apache/rocketmq/issues/2950#issuecomment-849290633
1. The master is distinguished by brokername, but what is the way to associate the master as a cluster?
2. Assuming that a queue is defined and this queue exists on each master, what strategy is used to allocate messages entering the queue to each master? Random or rotation?
4. I'm not a java developer, can you talk about it in detail?
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