- 
in_debug_agent 
- 
in_dummy 
- 
in_exec 
- 
in_gc_stat 
- 
in_http 
- 
in_monitor_agent 
- 
in_object_space 
- 
in_status 
- 
in_syslog 
- 
in_tail 
- 
in_tcp 
- 
in_udp 
- 
out_copy 
- 
out_exec 
- 
out_exec_filter 
- 
out_file 
- 
out_null 
- 
out_relabel 
- 
out_roundrobin 
- 
out_stdout 
- 
in_forward 
- 
out_forward 
- 
in_stream 
- 
out_stream 
- 
filter_grep 
- 
filter_record_transformer 
- 
filter_stdout 
Basically only read source code.
- 
forest 
- 
secure_forward 
- 
record-reformer 
- 
rewrite-tag-filter 
- 
elasticsearch (tested by hand) 
- 
s3 (tested by) 
- 
mongo (tested by hand) 
- 
td 
- 
scribe 
- 
datacounter 
- 
record-modifier 
- 
rewrite 
- 
parser 
- 
bigquery 
- 
webhdfs 
- 
growthforecast 
- 
typecast 
- 
sql 
- 
dstat 
- 
map 
- 
ping-message 
- 
file-alternative 
- 
numeric-counter 
- 
numeric-monitor 
- 
grepcounter 
- 
buffer-lightening 
- 
couch 
- 
grep 
- 
ec2-metadata 
- 
mysqlslowquery 
- 
hipchat 
- 
mail 
- 
grok-parser 
- 
metricsense 
- 
zabbix-simple-bufferd 
- 
norikra 
- 
kinesis 
- 
sqs 
- 
add 
- 
sns 
- 
td-monitoring 
- 
sampling-filter 
- 
geoip 
- 
mysql 
- 
pghstore 
- 
notifier 
- 
extract_query_params 
- 
keep-forward 
- 
amplifier-filter 
- 
cloudwatch 
- 
zabbix 
- 
cloudwatch_ya 
- 
redshift 
- 
mysql-replicator 
- 
amazon_sns 
- 
dynamodb 
- 
influxdb 
- 
bufferize 
- 
groonga 
- 
redis 
- 
redis-counter 
- 
redis-multi-type-counter 
- 
pull_forward 
- 
forward-aws 
- 
http-ex 
- 
kestrel 
- 
droonga