28 lines
865 B
Markdown
28 lines
865 B
Markdown
# Tag Limit Processor Plugin
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Use the `tag_limit` processor to ensure that only a certain number of tags are
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preserved for any given metric, and to choose the tags to preserve when the
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number of tags appended by the data source is over the limit.
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This can be useful when dealing with output systems (e.g. Stackdriver) that
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impose hard limits on the number of tags/labels per metric or where high
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levels of cardinality are computationally and/or financially expensive.
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### Configuration
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```toml
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[[processors.tag_limit]]
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## Maximum number of tags to preserve
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limit = 3
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## List of tags to preferentially preserve
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keep = ["environment", "region"]
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```
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### Example
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```diff
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+ throughput month=Jun,environment=qa,region=us-east1,lower=10i,upper=1000i,mean=500i 1560540094000000000
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+ throughput environment=qa,region=us-east1,lower=10i 1560540094000000000
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```
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