publishing huge vloume of message on the same subject

[qiaohe]

Observed behavior

when publishing huge vloume of maesage on the same subject . The messages received will got long latency (about 3minutes), Once publish on different dubjects, The performance will be improved. Any feeedbacks wil be appreciated. Thanks for your information in advance.

Expected behavior

The message will be delivered immediately

Server and client version

NATS 2.8.0

Host environment

16c 64G 3nodes

Steps to reproduce

nats publish message with 200000 meeage per seconds

[derekcollison]

Is this the correct server version?

Is this core NATS publishes?

[qiaohe]

Sorry just updated! Just use java client to publish the message

[qiaohe]

Different machines send messages to the same topic. this will be reproduced. want to know how to reslove this problems. Thanks

[Jarema]

Is the subject to which you're publishing to part of JetStream Stream?

btw, you are still using very old server. Please update to 2.10.20

[neilalexander]

Just use java client to publish the message

Are you using the NATS connection context to publish, or are you using the JetStream context? If you aren't using the JetStream context to publish to streams, you should be, otherwise you can overwhelm the server.

[qiaohe]

2.10.20

Thanks for your reply. upgrade to 2.10.20 to hava a try.

[qiaohe]

Just use java client to publish the message

Are you using the NATS connection context to publish, or are you using the JetStream context? If you aren't using the JetStream context to publish to streams, you should be, otherwise you can overwhelm the server.

I have not used jetstream version. Just found this issue will be occured when publishing messages from different machines. so far workaround solution is to publish messages from one connection context.

[Jarema]

@qiaohe so you were publishing messagse to a subject that is part of JetStream Stream using Core NATS publish?

[qiaohe]

so you were publishing messagse to a subject that is part of JetStream Stream using Core NATS publish?

I was publishing messages using core NTAS publish. this is not JetStream Stream version of NATS so far.

[derekcollison]

Try using the NATS cli and the bench command to test your system.

Which version of the Java client are you running?