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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2021/08/18 08:09:39 UTC

[GitHub] [pulsar] rayliu419 opened a new issue #11698: General questions on Pulsar - leader broker and ZK performance issues.

rayliu419 opened a new issue #11698:
URL: https://github.com/apache/pulsar/issues/11698


   Hi team, 
   
   I can't find a template to ask general question so I just post it here, please direct me to the right template/place if I am wrong. 
   
   1. Kafka(<2.8) use ZK to do leader broker election, as far as I know, when doing rolling update, when the leader broker update, the kafka cluster needs to select a new leader. During the time, the whole cluster can't offer service(at least not for write). I searched some pages and found Pulsar also has a concept called leader broker, does that also happens in Pulsar? 
   
   2. It seems Pulsar use ZK a lot, e.g., store meta data such as topic/namespace/tenants information, does that affect the cluster performance when the cluster is large? The configuration rarely changes so I think that's OK, but the meta data such as consumer offset change frequently, so I guess ZK will be a bottleneck of the whole cluster? 
   
   Thanks, 
   
   Rui 
   


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[GitHub] [pulsar] eolivelli commented on issue #11698: General questions on Pulsar - leader broker and ZK performance issues.

Posted by GitBox <gi...@apache.org>.
eolivelli commented on issue #11698:
URL: https://github.com/apache/pulsar/issues/11698#issuecomment-908084416


   @liangyuanpeng @rayliu419 
   
   > Slack is good place of talk about this.
   This is good, but in Apache we usually prefer to discuss on the mailing lists, like users@pulsar.apache.org (subscribe here https://pulsar.apache.org/contact/)
   
   This is because in the mailing lists the discussion is more asynchronous and more people are able to interact with the discussion thread.
   Slack is very good for quick answers/replies and possibly targeted to specific persons
   
   see you on Slack or in the ML
   


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[GitHub] [pulsar] liangyuanpeng commented on issue #11698: General questions on Pulsar - leader broker and ZK performance issues.

Posted by GitBox <gi...@apache.org>.
liangyuanpeng commented on issue #11698:
URL: https://github.com/apache/pulsar/issues/11698#issuecomment-908043017


   Slack is good place of talk about this.


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[GitHub] [pulsar] rayliu419 commented on issue #11698: General questions on Pulsar - leader broker and ZK performance issues.

Posted by GitBox <gi...@apache.org>.
rayliu419 commented on issue #11698:
URL: https://github.com/apache/pulsar/issues/11698#issuecomment-908058635


   @liangyuanpeng , thanks for your suggestion, I just joined it. 


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[GitHub] [pulsar] rayliu419 commented on issue #11698: General questions on Pulsar - leader broker and ZK performance issues.

Posted by GitBox <gi...@apache.org>.
rayliu419 commented on issue #11698:
URL: https://github.com/apache/pulsar/issues/11698#issuecomment-912293099


   close the issue. 


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[GitHub] [pulsar] rayliu419 closed issue #11698: General questions on Pulsar - leader broker and ZK performance issues.

Posted by GitBox <gi...@apache.org>.
rayliu419 closed issue #11698:
URL: https://github.com/apache/pulsar/issues/11698


   


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