# Restarting graph due to failure

**URL:** <https://community.neo4j.com/t/restarting-graph-due-to-failure/15973>\
**Category:** Neo4j Graph Platform\
**Created:** [March 18, 2020, 10:26am UTC](https://community.neo4j.com/t/restarting-graph-due-to-failure/15973 "2020-03-18T10:26:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ppoliani](https://sea1.discourse-cdn.com/flex021/user_avatar/community.neo4j.com/ppoliani/32/9640_2.png) [@ppoliani](https://community.neo4j.com/u/ppoliani)\
**Post date:** [March 18, 2020, 10:26am UTC](https://community.neo4j.com/t/restarting-graph-due-to-failure/15973/1 "2020-03-18T10:26:14Z")

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I've setup a causal cluster using Neo4j 4.0.1 enterprise. I have three core members and two read replicas. The cluster looks to have been successfully formed. I can see the correct members in the routing table. I have successfully sent read and write transactions and everything looks to work like a charm

I checked logs the read replica logs, though (i.e. `logs/debug.log`) and I noticed the following warnings

```auto
2020-03-18 09:46:35.824+0000 WARN [a.s.Materializer] [outbound connection to [akka://cc-discovery-actor-system@10.42.5.184:5000], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted
2020-03-18 09:46:35.824+0000 WARN [a.s.s.RestartWithBackoffFlow] Restarting graph due to failure. stack_trace: (akka.stream.StreamTcpException: The connection has been aborted)
2020-03-18 09:46:35.832+0000 WARN [a.s.Materializer] [outbound connection to [akka://cc-discovery-actor-system@10.42.9.147:5000], control stream] Upstream failed, cause: StreamTcpException: The connection has been aborted

```

The IPs in the above logs i.e. 10.42.5.184 and 10.42.9.147 belong to the pod of the core members.

I can equally see the same errors when digging into the core member logs:

```auto
2020-03-18 09:46:38.406+0000 WARN [a.s.Materializer] [outbound connection to [akka://cc-discovery-actor-system@10.42.9.146:5000], message stream] Upstream failed, cause: StreamTcpException: The connection has been aborted

```

Here the 10.42.9.146 belongs to the read replica pod.

The cluster on a whole doesn't seem to restart or malfunction, but the errors are very confusing and I'm not sure what it can be.

---

<div class="post-metadata">

**Author:** ![JnMik](https://sea1.discourse-cdn.com/flex021/user_avatar/community.neo4j.com/jnmik/32/10704_2.png) [@JnMik](https://community.neo4j.com/u/JnMik)\
**Post date:** [April 20, 2020, 11:50am UTC](https://community.neo4j.com/t/restarting-graph-due-to-failure/15973/2 "2020-04-20T11:50:22Z")

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Same issue here on 4.0.3-enterprise

I have 3 core members and 1 read replica, the messages occurs on the core-2 and the read replica.  
My core-2 as considered the Leader.