设置大小[计] set size;在这种情况中,JVM的设置大小可能不够大,而线程池大小可能太大了,或者某个线程的Java堆的平均或最大“负载”太高了。In this case, the JVM may be undersized, the thread pool sizes may be too large, or the average or maximum Java heap "load" of a thread is too high.