Logstash Persistent Queue disk exhaustion and automatic purging triggers
Logstash Persistent Queues (PQ) utilize disk-based buffering via memory-mapped files to ensure data durability across pipeline restarts. This mechanism allows the system to buffer events on disk to prevent data loss during crashes or unexpected shutdowns. When the queue.max_size limit is reached, Logstash typically manages flow via backpressure. However, the
logstash
prometheus