flume出现Event created from Invalid Syslog data.

Question

flume 运行时会产生很多这样的日志
27 Jul 2022 14:11:54,173 WARN [Old I/O datagram worker ([id: 0xe1f565a2, /192.168.131.2:1550)] (org.apache.flume.source.SyslogUtils.buildEvent:317) - Event created from Invalid Syslog data.
27 Jul 2022 14:11:54,173 WARN [Old I/O datagram worker ([id: 0xe1f565a2, /192.168.131.2:1550])] (org.apache.flume.source.SyslogUtils.buildEvent:317) - Event created from Invalid Syslog data.
27 Jul 2022 14:11:54,173 WARN [Old I/O datagram worker ([id: 0xe1f565a2, /192.168.131.2:1550])] (org.apache.flume.192.168.131.2:1550source.SyslogUtils.buildEvent:317) - Event created from Invalid Syslog data.
27 Jul 2022 14:11:54,173 WARN [Old I/O datagram worker ([id: 0xe1f565a2, /192.168.131.2:1550])] (org.apache.flume.source.SyslogUtils.buildEvent:317) - Event created from Invalid Syslog data.
27 Jul 2022 14:11:54,173 WARN [Old I/O datagram worker ([id: 0xe1f565a2, /192.168.131.2:1550])] (org.apache.flume.source.SyslogUtils.buildEvent:317) - Event created from Invalid Syslog data.

在网上搜出来的答案是在conf 下flume-conf.properties文件中添加
a1.sources.r1.eventSize=5000

配置完重启还是不行，谁能帮忙解答一下嘛？