Redis compare and set atomic
I want to store in redis some int that will show the current load(pending request count).
I need this counter in redis to check if app should send request to underline service or not.
For example I have threshold 50 pending request. And if app already sent 50 request I have to throttle my request. Something similar to distributed semaphore.
I see that Redis has transaction. But it cannot return the value.
Can Redis help me with such case?
java redis nosql semaphore amazon-elasticache
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
add a comment |
I want to store in redis some int that will show the current load(pending request count).
I need this counter in redis to check if app should send request to underline service or not.
For example I have threshold 50 pending request. And if app already sent 50 request I have to throttle my request. Something similar to distributed semaphore.
I see that Redis has transaction. But it cannot return the value.
Can Redis help me with such case?
java redis nosql semaphore amazon-elasticache
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
You mean you would like to Atomically "compare the value and increment it by 1" or "compare the value and set a new value"?
– Bandi Kishore
Nov 15 '18 at 19:35
Yeap. Compare and set.
– Aleksandr Filichkin
Nov 15 '18 at 19:38
add a comment |
I want to store in redis some int that will show the current load(pending request count).
I need this counter in redis to check if app should send request to underline service or not.
For example I have threshold 50 pending request. And if app already sent 50 request I have to throttle my request. Something similar to distributed semaphore.
I see that Redis has transaction. But it cannot return the value.
Can Redis help me with such case?
java redis nosql semaphore amazon-elasticache
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
I want to store in redis some int that will show the current load(pending request count).
I need this counter in redis to check if app should send request to underline service or not.
For example I have threshold 50 pending request. And if app already sent 50 request I have to throttle my request. Something similar to distributed semaphore.
I see that Redis has transaction. But it cannot return the value.
Can Redis help me with such case?
java redis nosql semaphore amazon-elasticache
java redis nosql semaphore amazon-elasticache
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
asked Nov 15 '18 at 19:26
Aleksandr FilichkinAleksandr Filichkin
123112
123112
You mean you would like to Atomically "compare the value and increment it by 1" or "compare the value and set a new value"?
– Bandi Kishore
Nov 15 '18 at 19:35
Yeap. Compare and set.
– Aleksandr Filichkin
Nov 15 '18 at 19:38
add a comment |
You mean you would like to Atomically "compare the value and increment it by 1" or "compare the value and set a new value"?
– Bandi Kishore
Nov 15 '18 at 19:35
Yeap. Compare and set.
– Aleksandr Filichkin
Nov 15 '18 at 19:38
You mean you would like to Atomically "compare the value and increment it by 1" or "compare the value and set a new value"?
– Bandi Kishore
Nov 15 '18 at 19:35
You mean you would like to Atomically "compare the value and increment it by 1" or "compare the value and set a new value"?
– Bandi Kishore
Nov 15 '18 at 19:35
Yeap. Compare and set.
– Aleksandr Filichkin
Nov 15 '18 at 19:38
Yeap. Compare and set.
– Aleksandr Filichkin
Nov 15 '18 at 19:38
add a comment |
1 Answer
1
active
oldest
votes
We had a similar requirement where we had to "Compare a value and increment it by 1" Atomically. We ended up using LUA script.
This maybe similar to what you're looking for.
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
We had a similar requirement where we had to "Compare a value and increment it by 1" Atomically. We ended up using LUA script.
This maybe similar to what you're looking for.
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
add a comment |
We had a similar requirement where we had to "Compare a value and increment it by 1" Atomically. We ended up using LUA script.
This maybe similar to what you're looking for.
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
add a comment |
We had a similar requirement where we had to "Compare a value and increment it by 1" Atomically. We ended up using LUA script.
This maybe similar to what you're looking for.
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
We had a similar requirement where we had to "Compare a value and increment it by 1" Atomically. We ended up using LUA script.
This maybe similar to what you're looking for.
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
answered Nov 15 '18 at 19:52
Bandi KishoreBandi Kishore
3,5311832
3,5311832
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
add a comment |
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
Thank you, will try it!
– Aleksandr Filichkin
Nov 15 '18 at 20:51
add a comment |
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You mean you would like to Atomically "compare the value and increment it by 1" or "compare the value and set a new value"?
– Bandi Kishore
Nov 15 '18 at 19:35
Yeap. Compare and set.
– Aleksandr Filichkin
Nov 15 '18 at 19:38