Which variable determines /tmp/_TIKV_LOCK_FILES? I want to move it to the data disk

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This topic has been translated from a Chinese forum by GPT and might contain errors.

Original topic: /tmp/_TIKV_LOCK_FILES 是有那个变量决定的我想换到数据盘上

| username: tidb狂热爱好者

The /tmp/_TIKV_LOCK_FILES is determined by which variable? I want to move it to the data disk.