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.
Django applications may return a \"DisallowedHost\" error when receiving requests with an unrecognized or missing Host header. This typically occurs in production environments where reverse proxies, load balancers, or external clients send requests using an unexpected domain or IP address. Django blocks these requests unless the domain is explicitly listed in `ALLOWED_HOSTS`.
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.
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.
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.
Detects NGINX configuration files that advertise obsolete and cryptographically weak ciphers (RC4\-MD5, RC4\-SHA, DES\-CBC3\-SHA).
NGINX server is receiving upload requests with bodies that exceed the configured size limits.
Nginx reports that an upstream server is sending headers that exceed the configured buffer size limits.
NGINX has reported that the configured worker_connections limit has been reached. This indicates that the web server
\- Datadog Cluster Agent fails to register its CWS (Container Workload Security) instrumentation webhook when running in `remote_copy` mode without a configured service account.
Detects SpiceDB schema validation failures that prevent authorization
Detects critical CUDA out of memory errors in Stable Diffusion WebUI that cause image generation failures and application crashes. This occurs when GPU VRAM is exhausted during model loading or image generation, resulting in complete task failure and potential WebUI instability.
The aws\-load\-balancer\-controller is unable to translate an Ingress resource into an AWS ALB Listener Rule when the path contains a wildcard (*) and the pathType is set to Prefix.
Loki ingester encounters \"object too large for cache\" errors when attempting to store log entries
Loki compactor encounters schema configuration mismatches when it finds index tables in object storage
Loki distributor encounters \"empty ring\" errors when attempting to send streams to pattern ingesters.
DataDog Agent encounters \"empty targets meta in director local store\" errors when attempting to
Grafana Mimir's distributor rejects incoming Prometheus series when the number of label
Loki ingester reports memcached errors indicating out\-of\-memory conditions while caching