Set up docs MCPThese settings are available in system.settings and are autogenerated from source.
opentelemetry_start_keeper_trace_probability
Type
FloatAuto
Default
auto
Version history
| Version | Default value | Comment |
|---|---|---|
| 26.2 | auto | New setting |
Probability to start a trace for ZooKeeper request - whether there is a parent trace or not.
Possible values:
- ‘auto’ - Equals the opentelemetry_start_trace_probability setting
- 0 — Tracing is disabled
- 0 to 1 — Probability (e.g., 1.0 = always enable)
opentelemetry_start_trace_probability
Type
Float
Default
0
Sets the probability that the ClickHouse can start a trace for executed queries (if no parent trace context is supplied).
Possible values:
- 0 — The trace for all executed queries is disabled (if no parent trace context is supplied).
- Positive floating-point number in the range [0..1]. For example, if the setting value is
0,5, ClickHouse can start a trace on average for half of the queries. - 1 — The trace for all executed queries is enabled.