# Scheduled WorkflowTasks occasionally not starting

**URL:** <https://community.temporal.io/t/scheduled-workflowtasks-occasionally-not-starting/12308>\
**Category:** Community Support\
**Created:** [May 31, 2024, 4:58pm UTC](https://community.temporal.io/t/scheduled-workflowtasks-occasionally-not-starting/12308 "2024-05-31T16:58:01Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Yimin\_Chen](https://sea2.discourse-cdn.com/flex016/user_avatar/community.temporal.io/yimin_chen/32/963_2.png) [@Yimin\_Chen](https://community.temporal.io/u/Yimin_Chen)\
**Post date:** [June 3, 2024, 11:43pm UTC](https://community.temporal.io/t/scheduled-workflowtasks-occasionally-not-starting/12308/6 "2024-06-03T23:43:31Z")

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> [@dano](#):
>
> We’re running a Postgres Replica Set with two nodes, using async replication.

I’m not an expert of PostgreSQL. But isn’t this might cause data inconsistent?  
For example, you write to the primary node and read from the replica who has not got the replication yet?

See more here: [SQL replication capability for temporal postgres db - #4 by tihomir](https://community.temporal.io/t/sql-replication-capability-for-temporal-postgres-db/4293/4)

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