# Akka-Cluster: "Failed to persist event" =\> "Retry request for shard"

**URL:** <https://discuss.akka.io/t/akka-cluster-failed-to-persist-event-retry-request-for-shard/7395>\
**Category:** Akka Libraries\
**Tags:** akka-cluster\
**Created:** [October 28, 2020, 8:01am UTC](https://discuss.akka.io/t/akka-cluster-failed-to-persist-event-retry-request-for-shard/7395 "2020-10-28T08:01:03Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![motmot80](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.akka.io/motmot80/32/2030_2.png) [@motmot80](https://discuss.akka.io/u/motmot80)\
**Post date:** [October 28, 2020, 8:01am UTC](https://discuss.akka.io/t/akka-cluster-failed-to-persist-event-retry-request-for-shard/7395/1 "2020-10-28T08:01:03Z")

</div>

Hi everyone,

we are using Akka-Cluster-Sharding with the following components

**akka** : 2.5.31  
**scala** : 2.11  
**akka-persistence-cassandra** : 0.102

We got an temporary perstistence issue after a GC pause on one of the cassandra instances.

```auto
Failed to persist event type [akka.cluster.sharding.Shard$EntityStopped] with sequence number [96688] for persistenceId [/sharding/REGIONShard/3684].

```

The nodes getting the error happend are logging this every few seconds:

`<REGION>: Retry request for shard [3684] homes from coordinator at [Actor[akka://systemname/system/sharding/REGIONCoordinator/singleton/coordinator#-192485395]]. [232] buffered messages.`

Two nodes where affected. On one node the log message went away after 14 hours. After restarting the other node (containing the shard coordination actor) the log messages dispeared, too.

**Expected** : The affected `Shard` actors should be restarted after a while.

**Actual** : The `Shard` could not be reached anymore.

I would be grateful for help.

Thanks in advance  
Thomas