v.21.6Improvement

Fix rare crash due to memory allocation failure in simdjson

Official CH changelog text
Fix crash when memory allocation fails in simdjson. https://github.com/simdjson/simdjson/pull/1567 . Mark as improvement because it's a very rare bug. #24147 (Amos Bird).
Fix a rare crash in ClickHouse caused by memory allocation failure in the integrated simdjson library.

Why it matters

This improvement addresses a stability issue where ClickHouse could crash if simdjson's memory allocation fails. By handling this failure gracefully, it ensures more robust JSON parsing and prevents unexpected server crashes, improving overall reliability.

How to use it

The fix is included in the ClickHouse update and requires no additional configuration by users. Simply upgrade to the version containing this fix to benefit from enhanced stability during JSON operations.

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