... write only memory 只写存储器 write only read many 一写多次读出光盘 cannot read a write-only property 不能读取只写属性 ...
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worm write only read many 一次性写入多次读出
These applications write their data only once but they read it one or more times and require these reads to be satisfied at streaming speeds. HDFS supports write-once-read-many semantics on files.
这些应用都是写数据一次,读却是一次到多次,并且读的速度要满足流式读。
Semaphores do not say which entities, nor how (read vs write), only how many.
信号量不要说哪些实体,也不如何(读和写),只有有多少。
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