Unable to print UDF logs in Aerospike - lua

Question

I am not able to print log in UDF(in Lua) of aerospike.
Logging configuration in conf file of aerospike is:
logging {
console {
context any info
}
file /var/log/aerospike/aerospike.log {
context any info
}
file /var/log/aerospike/lua.log {
context any critical
context aggr debug
context udf debug
context query debug
}
}
Source code for logging-
function filter(topRec)
debug("Hello")
info("Hello")
end

Answer 1

I changed my aerospike.conf to your logging stanza, then registered your module and ran it from AQL.
$ tail -7 /var/log/aerospike/lua.log
Jan 31 2018 17:41:57 GMT: DEBUG (udf): (udf_record.c:73) [ENTER] Opening record key:<Digest>:0x6902655800a8e0b15d7837a293ed11f6d7bb4e8a
Jan 31 2018 17:41:57 GMT: DEBUG (udf): (/opt/aerospike/usr/udf/lua/test.lua:43) Hello
Jan 31 2018 17:41:57 GMT: INFO (udf): (/opt/aerospike/usr/udf/lua/test.lua:44) Hello
Jan 31 2018 17:41:57 GMT: DEBUG (udf): (udf_record.c:246) [ENTER] Closing record key:<Digest>:0x6902655800a8e0b15d7837a293ed11f6d7bb4e8a
Jan 31 2018 17:41:57 GMT: DEBUG (udf): (udf_record.c:374) [ENTER] NumUpdates(0)
Jan 31 2018 17:41:57 GMT: DEBUG (udf): (udf_record.c:246) [ENTER] Closing record key:<Digest>:0x6902655800a8e0b15d7837a293ed11f6d7bb4e8a
Jan 31 2018 17:41:57 GMT: DEBUG (udf): (udf_record.c:374) [ENTER] NumUpdates(0)
Which version are you using? Did you check the file permissions for those log files - can your server write to them?