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16 docs tagged with "known-issue"

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CRE-2025-0027

In OpenStack deployments using Neutron with the OVN ML2 driver, ports could be bound to agents that were not alive. This behavior led to virtual machines experiencing network interface plug timeouts during provisioning, as the port binding would not complete successfully.

CRE-2025-0030

SQLAlchemy applications using `create_engine()` may fail to connect to a database if the username or password contains special characters (e.g., `@`, `\:`, `/`, `\#`). These characters must be URL\-encoded when included in the database connection string. Failure to encode them leads to parsing errors or incorrect credential usage.

CRE-2025-0032

Loki instances using memcached for caching may emit excessive warning or error logs when the configured`memcached_client` service port name does not match the actual Kubernetes service port. This does not cause a crash or failure, but it results in noisy logs and ineffective caching behavior.

CRE-2025-0033

The OpenTelemetry Collector may refuse to ingest metrics during a Prometheus scrape if it exceeds its configured memory limits. When the `memory_limiter` processor is enabled, the Collector actively drops data to prevent out\-of\-memory errors, resulting in log messages indicating that data was refused due to high memory usage.

CRE-2025-0034

If the Datadog agent or client libraries do not detect a configured API key, they will skip sending metrics, logs, and events. This results in a silent failure of observability reporting, often visible only through startup log messages.

CRE-2025-0035

Applications using psycopg2 with OpenTelemetry instrumentation or threading may fail with SSL\-related errors such as \"decryption failed or bad record mac\". This often occurs when a database connection is created before a fork or from an unsafe thread context, causing the SSL state to become invalid.

CRE-2025-0036

The OpenTelemetry Collector may drop telemetry data when an exporter backend responds with a 413 Payload Too Large error. This typically happens when large batches of metrics, logs, or traces exceed the maximum payload size accepted by the backend. By default, the collector drops these payloads unless retry behavior is explicitly enabled.

CRE-2025-0037

The OpenTelemetry Collector can panic due to a nil pointer dereference in the Prometheus Remote Write exporter. The issue occurs when attribute values are assumed to be strings, but the internal representation is nil or incompatible, leading to a runtime `SIGSEGV` segmentation fault and crashing the collector.

CRE-2025-0038

Grafana Loki may emit errors when attempting to write to a Memcached backend that has run out of available memory. This results in dropped index or query cache entries, which can degrade query performance but does not interrupt ingestion.

CRE-2025-0039

The OpenTelemetry Collector may intermittently fail to export telemetry data when the backend API is unavailable or overloaded. These failures manifest as timeouts (`context deadline exceeded`) or transient HTTP 502 responses. While retry logic is typically enabled, repeated failures can introduce delay or backpressure.

CRE-2025-0040

During load balancer creation or other operations involving logical router and logical switch associations, Neutron OVN may raise a `RowNotFound` exception when attempting to reference a logical switch that has just been deleted. This leads to a port binding failure and a rollback of the affected operation.

CRE-2025-0041

\- In redis\-py v5.x, sharing a single Redis client across async tasks or subprocesses can result in\:

CRE-2025-0042

\- Applications using Django with PostgreSQL and psycopg2 may encounter `deadlock detected` errors under concurrent write\-heavy workloads.

CRE-2025-0043

Grafana may reject custom or third\-party plugins at runtime if they are not digitally signed. When plugin signature validation is enabled (default since Grafana 8+), unsigned plugins are blocked and logged as validation errors during startup or plugin loading.

CRE-2025-0044

Detects NGINX configuration files that advertise obsolete and cryptographically weak ciphers (RC4\-MD5, RC4\-SHA, DES\-CBC3\-SHA).

CRE-2025-0059

\- Datadog Cluster Agent fails to register its CWS (Container Workload Security) instrumentation webhook when running in `remote_copy` mode without a configured service account.