Max pool size: the maximum number of connection that can be allocated from the pool.
最大池大小：连接池中可以分配的最大连接数。
In such case, even though you are not using Max pool size number of connection simultaneously, you may get this error.
在这种情况下，既使你没有同时使用到最大连接池数指定的连接，你也会遇到该错误。
The memory pool size and the Max activity level values for the memory pool where QZDASOINIT jobs are running.
内存池的大小和QZDASOINI任务所在内存池的最大活动级别。
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