# OpenTelemetry Viewer Plugin Configuration
# This file configures the OpenTelemetry viewer plugin for Netdata

journal:
  # Paths to journal directories to watch and index. Multiple directories can
  # be specified to monitor different journal sources. At least one path must
  # be specified
  paths:
    - "/opt/netdata/var/log/netdata/otel/v1"

cache:
  # Directory to store the hybrid cache (memory + disk backed by Foyer)
  directory: "/opt/netdata/var/cache/netdata/otel-signal-viewer"

  # Memory cache capacity (number of indexed journal files to keep in memory)
  # Higher values improve query performance but use more RAM
  memory_capacity: 1000

  # Disk cache size (maximum size of the disk-backed cache)
  # Higher values improve performance for large journal files
  disk_capacity: "32MB"

  # Cache block size (size of individual cache blocks in Foyer)
  block_size: "4MB"

  # Number of background workers for indexing journal files
  # Default: number of CPU cores (auto-detected)
  # Uncomment to override:
  # workers: 4

  # Queue capacity for pending indexing requests
  # Controls backpressure on the indexing system
  queue_capacity: 100

indexing:
  # Maximum number of unique values to index per field.
  # Fields with more unique values than this limit will have their indexing
  # truncated to prevent unbounded memory growth. This protects against
  # high-cardinality fields (e.g., MESSAGE with millions of unique values)
  # causing memory exhaustion during indexing.
  max_unique_values_per_field: 500

  # Maximum payload size (in bytes) for field values to index.
  # Field values with payloads larger than this limit will be skipped.
  # This prevents field values with large payloads from consuming excessive memory.
  max_field_payload_size: 100