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# fluent-plugin-amplifier-filter
## Component
### AmplifierFilterOutput
Modify numeric values of specified fields, and Re-emit with modified tags. Useful for counting values of sampled data (by fluent-plugin-sampling-filter or etc).
## Configuration
### AmplifierFilterOutput
To do x10 for messages 1/10 sampled, and to do x100 for messages 1/100 sampled:
<match sampled_10.**>
type amplifier_filter
ratio 10
remove_prefix sampled_10
key_names counts,rates
</match>
<match sampled_100.**>
type amplifier_filter
ratio 100
remove_prefix sampled_100
key_names counts,rates
</match>
<match logs.**>
# output configurations where to send original/modified messages...
</match>
`key_pattern`(regexp) useful insted of `key_names`, and `add_prefix` is also useful:
<match sampled_10.**>
type amplifier_filter
ratio 10
remove_prefix sampled_10
add_prefix summary
key_pattern .*_(count|rate)$
</match>
<match summary.**>
# output configurations where to send original/modified messages...
</match>
## TODO
* consider what to do next
* patches welcome!
## Copyright
Copyright:: Copyright (c) 2012- TAGOMORI Satoshi (tagomoris)
License:: Apache License, Version 2.0
Version data entries
5 entries across 5 versions & 1 rubygems