# \[o.e.x.s.t.n.securityNetty4ServerTransport\] Send message failed NettyTcpchannel

**URL:** <https://discuss.elastic.co/t/o-e-x-s-t-n-securitynetty4servertransport-send-message-failed-nettytcpchannel/259921>\
**Category:** Elasticsearch\
**Created:** [December 30, 2020, 9:26pm UTC](https://discuss.elastic.co/t/o-e-x-s-t-n-securitynetty4servertransport-send-message-failed-nettytcpchannel/259921 "2020-12-30T21:26:35Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![anil\_sunkesula](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/anil_sunkesula/32/51133_2.png) [@anil\_sunkesula](https://discuss.elastic.co/u/anil_sunkesula)\
**Post date:** [December 30, 2020, 9:26pm UTC](https://discuss.elastic.co/t/o-e-x-s-t-n-securitynetty4servertransport-send-message-failed-nettytcpchannel/259921/1 "2020-12-30T21:26:35Z")

</div>

I am getting below warning in my Elasticsearch cluster logs.

```auto
[Warn] [o.e.x.s.t.n.securityNetty4ServerTransport] Send message failed send message failed [Channel: NettyTcpchannel{localAddress=0.0.0/0.0.0.0:9300}, remote address=IP:port]] java.nio.channels.ClosedChannelException:null

```

Can someone please guide me what is root cause of this.

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [January 27, 2021, 9:26pm UTC](https://discuss.elastic.co/t/o-e-x-s-t-n-securitynetty4servertransport-send-message-failed-nettytcpchannel/259921/2 "2021-01-27T21:26:52Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.