# Percona Cluster Performance Question

**URL:** <https://forums.percona.com/t/percona-cluster-performance-question/6808>\
**Category:** Percona XtraDB Cluster 5.x\
**Created:** [January 21, 2019, 10:47pm UTC](https://forums.percona.com/t/percona-cluster-performance-question/6808 "2019-01-21T22:47:02Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mwarble](https://avatars.discourse-cdn.com/v4/letter/m/f6c823/32.png) [@mwarble](https://forums.percona.com/u/mwarble)\
**Post date:** [January 21, 2019, 10:47pm UTC](https://forums.percona.com/t/percona-cluster-performance-question/6808/1 "2019-01-21T22:47:02Z")

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I’m currently using Percona Cluster for the HA aspect and have my application configured to use only a single node at any given time in a 3 node cluster. This essentially treats one node as a master and the other 2 nodes as slaves. If I were to use all 3 nodes in a normal multi-master configuration, is there any performance benefit to this from a write standpoint? Since a write to one node is written to the others as well, it would seem you are putting the same burden on the cluster regardless if you write to a single node or load balance to all 3. I understand there would be a read performance benefit, I just want to know if splitting the writing between the 3 nodes would also provide a write performance benefit? Thanks.

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**Author:** ![krunalbauskar](https://avatars.discourse-cdn.com/v4/letter/k/439d5e/32.png) [@krunalbauskar](https://forums.percona.com/u/krunalbauskar)\
**Post date:** [January 22, 2019, 3:48am UTC](https://forums.percona.com/t/percona-cluster-performance-question/6808/2 "2019-01-22T03:48:19Z")

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Hello,

It all depends on how your writes are configured.

If you continue to write/update the same tables from 3 different nodes, there are increased chances of conflicts (again depends on data) and so you may need to retry failed transaction.

But say you plan to update different tables from 3 different nodes you may see an improved performance given you are getting consistent data on all 3 nodes.

(Read as you pointed always gain from 3 nodes)

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Important: Please use PXC-5.7 for improved performance. Starting 5.7.17 we have fixed major performance bottleneck in PXC. Latest PXC is 5.7.24

Regards,  
Krunal
