Enable memory overcommit by default in ClickHouse to improve memory allocation flexibility.
Why it matters
This feature allows ClickHouse to allocate more memory than the physically available memory by enabling memory overcommit. It helps prevent out-of-memory errors in scenarios where memory usage is bursty or intermittent, improving system stability and resource utilization.How to use it
Memory overcommit is now enabled by default in ClickHouse starting from this version. No additional configuration is required to activate this feature.