Overview

Module prometheus_mnesia_collector

• Description

Behaviours: prometheus_collector.

Description

Collects Mnesia metrics mainly using mnesia:system_info/1 .

Exported metrics

• erlang_mnesia_held_locks
  Type: gauge.
  Number of held locks.
• erlang_mnesia_lock_queue
  Type: gauge.
  Number of transactions waiting for a lock.
• erlang_mnesia_transaction_participants
  Type: gauge.
  Number of participant transactions.
• erlang_mnesia_transaction_coordinators
  Type: gauge.
  Number of coordinator transactions.
• erlang_mnesia_failed_transactions
  Type: counter.
  Number of failed (i.e. aborted) transactions.
• erlang_mnesia_committed_transactions
  Type: gauge.
  Number of committed transactions.
• erlang_mnesia_logged_transactions
  Type: counter.
  Number of transactions logged.
• erlang_mnesia_restarted_transactions
  Type: counter.
  Total number of transaction restarts.
• erlang_mnesia_memory_usage_bytes
  Type: gauge.
  Total number of bytes allocated by all mnesia tables.

Configuration

Metrics exported by this collector can be configured via mnesia_collector_metrics key of prometheus app environment.

Available options: - held_locks for erlang_mnesia_held_locks; - lock_queue for erlang_mnesia_lock_queue; - transaction_participants for erlang_mnesia_transaction_participants; - transaction_coordinators for erlang_mnesia_transaction_coordinators; - transaction_failures for erlang_mnesia_failed_transactions; - transaction_commits for erlang_mnesia_committed_transactions; - transaction_log_writes for erlang_mnesia_logged_transactions; - transaction_restarts for erlang_mnesia_restarted_transactions; - memory_usage_bytes for erlang_mnesia_memory_usage_bytes.

Overview

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