message=>”Failed to send event to Redis”

Hi Team,

I am getting below error in logstash.log:
:message=>”Failed to send event to Redis”

And below lines on appendonly.aof file of Redis:
local batchsize = tonumber(ARGV[1])
local result = redis.call('lrange', KEYS[1], 0, batchsize)
redis.call('ltrim', KEYS[1], batchsize + 1, -1)
return result
What could be the issue, even telnet and ping works fine.

Thanks,
Gayathri

Are you using LSF?

yes.. I am using Logstash Forwader for pushing the Logs

LSF is deprecated, you won't find much assistance with it unfortunately.
You should migrate to filebeat.