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I want to create a temporary sorted-set based on the origin one in a timer, maybe the interval is 4 hour, I'm using spring-data-redis api to do this.

ZUNIONSTORE tmp 2 A B AGGREGATE MAX

when the ZUNIONSTORE commmand is executing, will it block any other commands like ZADD,ZREM,ZRANGE,ZINCRBY based on the SortedSet A or B ? I don't know if this will cause concurrency problems, please give me some suggestions.

user4100935
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    possible duplicate of [Redis is single-threaded, then how does it do concurrent I/O?](http://stackoverflow.com/questions/10489298/redis-is-single-threaded-then-how-does-it-do-concurrent-i-o) – Niloct Oct 10 '14 at 06:16
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    Probably duplicate - in any case, since Redis is (mostly) single threaded, it only performs one command at a time so any other commands are blocked during execution. – Itamar Haber Oct 10 '14 at 11:12

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