# Challenges with Configuring Confluent Replicator for Cross-Cluster Data Sync

**URL:** <https://forum.confluent.io/t/challenges-with-configuring-confluent-replicator-for-cross-cluster-data-sync/13504>\
**Category:** Cluster Replication\
**Created:** [13 December 2024 13:30 UTC](https://forum.confluent.io/t/challenges-with-configuring-confluent-replicator-for-cross-cluster-data-sync/13504 "2024-12-13T13:30:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![datingel](https://avatars.discourse-cdn.com/v4/letter/d/439d5e/32.png) [@datingel](https://forum.confluent.io/u/datingel)\
**Post date:** [13 December 2024 13:30 UTC](https://forum.confluent.io/t/challenges-with-configuring-confluent-replicator-for-cross-cluster-data-sync/13504/1 "2024-12-13T13:30:58Z")

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Hello

I am facing an issue while setting up Confluent Replicator for cross-cluster replication between two Kafka clusters. The source cluster is on-prem; while the destination is hosted in a cloud environment. Despite following the official documentation, I encounter intermittent connection timeouts and replication lag. 🙃

I have confirmed that the necessary network configurations (firewalls, security groups, etc.) are in place.

Both clusters can communicate, and I can produce and consume messages from the source & destination clusters independently. However; during replication, the process sometimes stalls & logs show recurring connection errors with no clear resolution. 🙂 I have checked [Cluster Replication - Confluent Community](https://forum.confluent.io/c/ops/cluster-replication/16) [Java](https://www.igmguru.com/digital-marketing-programming/java-certification-training) guide for reference but still need advice .

Has anyone faced similar challenges? Could this be related to specific configurations like offset translation, authentication issues (e.g., SASL/SSL) / even network latencies? 🤔

Any troubleshooting tips would be greatly appreciated!

Thank you ! 🙂

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**Author:** ![dtroiano](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.confluent.io/dtroiano/32/1961_2.png) [@dtroiano](https://forum.confluent.io/u/dtroiano)\
**Post date:** [13 December 2024 13:49 UTC](https://forum.confluent.io/t/challenges-with-configuring-confluent-replicator-for-cross-cluster-data-sync/13504/2 "2024-12-13T13:49:19Z")

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> [@datingel](#):
>
> However; during replication, the process sometimes stalls & logs show recurring connection errors with no clear resolution.

What do broker logs show at this time?