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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2021/12/22 07:21:48 UTC
[GitHub] [rocketmq] iamqq23ue opened a new issue #3667: The network delay between master and slave has a great performance impact
iamqq23ue opened a new issue #3667:
URL: https://github.com/apache/rocketmq/issues/3667
version: 4.9.1
I simulate the network delay between master slaves and use the tc command to add 2ms delay.
Test result: No matter how high the server configuration is, the maximum network traffic can only reach about
27M/s. For example, 10K message, TPS 2700， or 100k ,tps 270.
By zhe way, if there is no network delay, the network traffic of sending messages from the same machine can reach
300M/s。For example, 10K message, TPS 27000.
According to the test, the 2ms delay has a limited impact on SFTP。Therefore, I speculate that the delay has
different effects on different application scenarios.
I would like to ask if there are parameters that can reduce the performance impact of network latency？
说明一下，延时影响性能是预期之内的。但是2ms延时，性能就下降到十分之一，这就不合理了。
我用sftp做实验，2ms延时几乎没有影响。大多数应用也不应该影响这么大。
所以想请教专家，是否有办法优化。
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[GitHub] [rocketmq] RongtongJin commented on issue #3667: The network delay between master and slave has a great performance impact
Posted by GitBox <gi...@apache.org>.
RongtongJin commented on issue #3667:
URL: https://github.com/apache/rocketmq/issues/3667#issuecomment-1007203516
Hi, @iamqq23ue Could you describe the test scenario in more detail？ In addition, IMO it is not accurate for using tc command to simulate the delay between master and slave, because tc command acts on the network card, it will also affect the transmission from the client to the broker.
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[GitHub] [rocketmq] iamqq23ue commented on issue #3667: The network delay between master and slave has a great performance impact
Posted by GitBox <gi...@apache.org>.
iamqq23ue commented on issue #3667:
URL: https://github.com/apache/rocketmq/issues/3667#issuecomment-1007225444
I use the TC command to add a 2ms delay on the slave server. IMO, I guess the delay from slave to client will not affect the message sending
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[GitHub] [rocketmq] RongtongJin commented on issue #3667: The network delay between master and slave has a great performance impact
Posted by GitBox <gi...@apache.org>.
RongtongJin commented on issue #3667:
URL: https://github.com/apache/rocketmq/issues/3667#issuecomment-1007203516
Hi, @iamqq23ue Could you describe the test scenario in more detail？ In addition, IMO it is not accurate for using tc command to simulate the delay between master and slave, because tc command acts on the network card, it will also affect the transmission from the client to the broker.
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[GitHub] [rocketmq] iamqq23ue commented on issue #3667: The network delay between master and slave has a great performance impact
Posted by GitBox <gi...@apache.org>.
iamqq23ue commented on issue #3667:
URL: https://github.com/apache/rocketmq/issues/3667#issuecomment-1007225444
I use the TC command to add a 2ms delay on the slave server. IMO, I guess the delay from slave to client will not affect the message sending
Message ID: ***@***.***>
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