Tag: Memory

Problems related to memory usage, such as leaks, pressure, or out-of-memory crashes

ID	Title	Description	Category	Technology	Tags
prequel-2025-0072 Low Impact: 3/10 Mitigation: 2/10	OTel Collector Dropped Data to to High Memory Usage	The OpenTelemetry Collector’s memory_limiter processor (added by default in most distro Helm charts) protects the process RSS by monitoring the Go heap and rejecting exports once the soft limit (default 85 % of container/VM memory) is exceeded. After a queue/exporter exhausts its retry budget you’ll see log records such as: ``` no more retries left: rpc error: code = Unavailable desc = data refused due to high memory usage ``` The batches being dropped can be traces, metrics, or logs, depending on which pipeline hit the limit.	OTEL Problems	otel-collector	OTEL Memory Backpressure
prequel-2025-0101 Medium Impact: 6/10 Mitigation: 5/10	Loki Ingester Memcache Out of Memory	Loki ingester reports memcached errors indicating out-of-memory conditions while caching objects, logging messages such as "SERVER_ERROR out of memory storing object". When this occurs, cache writes fail and can lead to degraded ingestion performance, retries, and increased memory pressure on the ingester.	Observability Problems	ingester	Loki Ingester Memcached Storage Cache Memory Data Loss Threshold Exceeded Observability Configuration