Logisland - Guides
You have gone through the Getting Started guides. You are now ready to dive into specific topic guides.
Event Aggregation
Learn how to aggregate metrics over time window events
This guide covers:
- avro schema validation
- event aggregation stream
Query Matching
Learn how to percolate lucen Queries to generate custom events based on business policies
This guide covers:
- lucene syntax
- matching queries
Using Expression language
Learn how to use Expression Language in Logisland configurations
This guide covers:
- MVEL syntax
- using EL in a Processor
Using Cache & Enrichers
Learn how to add meta information from external source and using a cache
This guide covers:
- LRU cache definition
- User Agent parsing
- FQDN meta data retrieval
Threshold Alerting
Learn how to launch alerts based on thresholds policies
This guide covers:
- using a Redis K/V to store some aggregations
- define alerting business rules as MVEL functions
