Environment variables

These environment variables

Variable	Description
POLARS_TEMP_DIR	Override the default temporary directory Polars uses for scratch files and some I/O operations.
PLC_LOG_LEVEL	Controls logging verbosity for the polars-on-premise components (e.g. scheduler/worker). e.g. Info,Debug,Trace`
POLARS_SKIP_DSL_HASH_VERIFICATION	Skips internal DSL schema/hash compatibility checks between polars cloud client and polars-on-premise binary. Set to 1 only in controlled environments when working around temporary DSL hash mismatches.
POLARS_ALLOW_PQ_EMPTY_STRUCT	Allows reading or writing Parquet files that contain empty struct fields that are otherwise rejected.
OTLP_ENDPOINT	Target endpoint for sending OTLP traces/metrics/logs to your OpenTelemetry collector/observability stack. e.g. http://otel-collector:4317
OTEL_SERVICE_INSTANCE_ID	OpenTelemetry service.instance.id that uniquely identifies this cublet instance in telemetry. Must match cublet_id.

You may also set any Polars OSS-recognized environment variables.