增加swap空间

https://blog.csdn.net/littleRpl/article/details/92626436?spm=1001.2101.3001.6661.1&utm_medium=distribute.pc_relevant_t0.none-task-blog-2~default~CTRLIST~Rate-1-92626436-blog-53610412.pc_relevant_3mothn_strategy_and_data_recovery&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2~default~CTRLIST~Rate-1-92626436-blog-53610412.pc_relevant_3mothn_strategy_and_data_recovery&utm_relevant_index=1