Tuesday, March 14, 2023
HomeRuby On RailsBed rails maintains entrance TTL when incrementing or decrementing an integer worth.

Bed rails maintains entrance TTL when incrementing or decrementing an integer worth.


Caching remedies like MemCache
and also Redis constantly maintain expiry,
while changing a worth to stay clear of any type of inconsistencies triggered by it.
Formerly, while incrementing
or decrementing an integer worth in MemoryStore,
Bed rails made use of to reset the expires_in connected with the entrance, for eg-

Prior To

Allow’s claim, we are saving specific variety of sort on an item
as a like_counter in MemoryStore for 10 secs.
Below, if we increment
or decrement the counter,
it is made use of to reset the TTL.

 irb( primary):  004:  0>>  cache  =  ActiveSupport::  Cache lookup_store(: memory_store)
 irb( primary):  004:  0>>  cache compose(" like_counter",  1,  raw:  real,  expires_in:  10 secs)
 irb( primary):  004:  0>>  rest( 2 secs)
 irb( primary):  004:  0>>  cache increment(" like_counter")
 irb( primary):  004:  0>>  rest( 8 secs)
 irb( primary):  004:  0>>  cache read(" like_counter")
 irb( primary):  004:  0>>  2

As we can see after 10 secs, like_counter need to have been removed from the shop, nonetheless,
it still reveals the incremented worth since cache.increment(" like_counter") established the timer
once again to 10 secs.

After

Currently, Bed rails maintains expires_in while incrementing
or decrementing an integer worth in MemoryStore.

 irb( primary):  004:  0>>  cache  =  ActiveSupport::  Cache lookup_store(: memory_store)
 irb( primary):  004:  0>>  cache compose(" like_counter",  1,  raw:  real,  expires_in:  10 secs)
 irb( primary):  004:  0>>  rest( 2 secs)
 irb( primary):  004:  0>>  cache increment(" like_counter")
 irb( primary):  004:  0>>  rest( 8 secs)
 irb( primary):  004:  0>>  cache read(" like_counter")
 irb( primary):  004:  0>>  nil

As it can be seen,
though we had actually incremented the counter,
the crucial obtained ended after 10 secs
and also returned nil

Look Into
the PUBLIC RELATIONS
for even more information.

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