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The `clearknob` command clears the value that a knob has been set to in the configuration database. Note that this does not mean the knob value itself gets cleared - only the value in the configuration database is cleared. The value of the knob will revert to whatever is hardcoded in the corresponding `*Knobs.cpp` file. Sample `fdbcli` session: ``` Welcome to the fdbcli. For help, type `help'. fdb> getknob min_trace_severity `min_trace_severity' is not found fdb> setknob min_trace_severity 20 Please set a description for the change. Description must be non-empty description: test Committed (2) fdb> getknob min_trace_severity `min_trace_severity' is `20' fdb> clearknob min_trace_severity Please set a description for the change. Description must be non-empty description: clear Committed (4) fdb> getknob min_trace_severity `min_trace_severity' is not found ``` Transactions are also supported with the new `clearknob` command: ``` Welcome to the fdbcli. For help, type `help'. fdb> begin Transaction started fdb> setknob min_trace_severity 20 fdb> clearknob min_trace_severity fdb> commit Please set a description for the change. Description must be non-empty. description: test Committed (16) fdb> getknob min_trace_severity `min_trace_severity' is not found ``` |
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| .. | ||
| Commit | ||
| LoadBalancing | ||
| backup-dataFormat.md | ||
| backup.md | ||
| backup_v2_partitioned_logs.md | ||
| data-distributor-internals.md | ||
| dynamic-knobs.md | ||
| encryption-data-at-rest.md | ||
| flow_transport.md | ||
| global-tag-throttling.md | ||
| idempotency_ids.md | ||
| recovery-internals.md | ||
| special-key-space.md | ||
| storage-quota-diagram.svg | ||
| storage-quota.md | ||
| tlog-forward-compatibility.md.html | ||
| tlog-spilling.md.html | ||
| transaction-state-store.md | ||
| tuple.md | ||
