# WARN input receiveBufferSize
**URL:** https://community.graylog.org/t/warn-input-receivebuffersize/2970
**Category:** Graylog Central (peer support)
**Created:** [October 31, 2017, 3:21pm UTC](https://community.graylog.org/t/warn-input-receivebuffersize/2970 "2017-10-31T15:21:19Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@frantz](https://community.graylog.org/u/frantz)
#### Post date: [October 31, 2017, 3:21pm UTC](https://community.graylog.org/t/warn-input-receivebuffersize/2970/1 "2017-10-31T15:21:20Z")
Hello,
I have warning logs in server.log :
WARN [NettyTransport] receiveBufferSize (SO\_RCVBUF) for input XXX should be 1048576 but is 212992.
I have 2 inputs (1 syslog TCP and 1 GELF TCP) and both are concerned by this warning messages.
The size 1048576 is the default size configured when I created the inputs.
So I have 2 questions :
- What is the role of this buffer ? What is its aim ?
- Why does I get this warning logs ? Is it important ? Must I resolve them ?
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### Author:  [@system](https://community.graylog.org/u/system)
#### Post date: [November 14, 2017, 3:21pm UTC](https://community.graylog.org/t/warn-input-receivebuffersize/2970/2 "2017-11-14T15:21:34Z")
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