Data race condition

The value of the shared data will be determined by the interleaving of thread execution. Thread shared data is accessed without holding an appropriate lock, possibly causing a race condition
/src/mongo/db/repl/tenant_all_database_cloner.cpp:367: MISSING_LOCK 140986 Accessing "this->approxTotalDataSize" without holding lock "mongo::repl::BaseCloner._mutex". Elsewhere, "mongo::repl::TenantAllDatabaseCloner::Stats.approxTotalDataSize" is written to with "BaseCloner._mutex" held 1 out of 1 times (1 of these accesses strongly imply that it is necessary).