# WorkflowClient in Java SDK - is one client always enough or there should be a pool of clients? **URL:** \ **Category:** Community Support\ **Tags:** java-sdk\ **Created:** [October 26, 2022, 11:11am UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328 "2022-10-26T11:11:42Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Piotr\_Starobrat](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/piotr_starobrat/32/2901_2.png) [@Piotr\_Starobrat](https://community.temporal.io/u/Piotr_Starobrat)\ **Post date:** [October 26, 2022, 11:11am UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/1 "2022-10-26T11:11:42Z")
Hi, I’m working on a design of a system using Temporal workflows in a massive scale. We are using Java SDK. Documentation says that WorkflowClient should be created once in a process, it shouldn’t be created for every request. Some of our workflows will be synchronous. Is it possible that workflow client would become a bottleneck of a system at some point? I’m wondering - is one client always enough? Or maybe it makes sense to create a pool of workflow clients? ---
**Author:** ![maxim](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/maxim/32/8_2.png) [@maxim](https://community.temporal.io/u/maxim)\ **Post date:** [October 26, 2022, 3:52pm UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/2 "2022-10-26T15:52:50Z")
Yes, one client is enough. Would you describe what you mean by “massive scale”? ---
**Author:** ![Piotr\_Starobrat](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/piotr_starobrat/32/2901_2.png) [@Piotr\_Starobrat](https://community.temporal.io/u/Piotr_Starobrat)\ **Post date:** [October 27, 2022, 5:16pm UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/3 "2022-10-27T17:16:12Z")
Thank you for the answer. I’m talking about hundreds of thousands of workflow executions - daily. ---
**Author:** ![maxim](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/maxim/32/8_2.png) [@maxim](https://community.temporal.io/u/maxim)\ **Post date:** [October 27, 2022, 6:02pm UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/4 "2022-10-27T18:02:15Z")
That is not a massive scale for Temporal. The Temporal can support orders of magnitude higher rates. ---
**Author:** ![Piotr\_Starobrat](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/piotr_starobrat/32/2901_2.png) [@Piotr\_Starobrat](https://community.temporal.io/u/Piotr_Starobrat)\ **Post date:** [October 28, 2022, 7:33am UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/5 "2022-10-28T07:33:27Z")
Thank you Maxim for your help. ---
**Author:** ![Pranav\_Gupta](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/pranav_gupta/32/2940_2.png) [@Pranav\_Gupta](https://community.temporal.io/u/Pranav_Gupta)\ **Post date:** [November 2, 2022, 4:07pm UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/6 "2022-11-02T16:07:14Z")
Hi Maxim We are planning to use temporal for a mission critical application for a leading Bank. Is it possible to have a word with you? Regards Pranav ---
**Author:** ![maxim](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/maxim/32/8_2.png) [@maxim](https://community.temporal.io/u/maxim)\ **Post date:** [November 3, 2022, 3:34pm UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/7 "2022-11-03T15:34:53Z")
Sure, DM me in Slack. ---
**Author:** ![Pranav\_Gupta](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/pranav_gupta/32/2940_2.png) [@Pranav\_Gupta](https://community.temporal.io/u/Pranav_Gupta)\ **Post date:** [November 3, 2022, 4:32pm UTC](https://community.temporal.io/t/workflowclient-in-java-sdk-is-one-client-always-enough-or-there-should-be-a-pool-of-clients/6328/8 "2022-11-03T16:32:38Z")
Thanks Maxim, Piotr and I will contact you there.