Redis replication order
In a master-slave scenario, Redis replication is made in an asynchronous way. But is it guaranteed that the commands are replicated in order? If I have these commands:
SET key1 111
SET key2 222
SET key3 333
If the slave node has "key2", then I can say for sure that it'll also have "key1"?
redis
asked Dec 28 '18 at 0:30
Fabio
2,07232847
add a comment |
In a master-slave scenario, Redis replication is made in an asynchronous way. But is it guaranteed that the commands are replicated in order? If I have these commands:
SET key1 111
SET key2 222
SET key3 333
If the slave node has "key2", then I can say for sure that it'll also have "key1"?
redis
asked Dec 28 '18 at 0:30
Fabio
2,07232847
add a comment |
In a master-slave scenario, Redis replication is made in an asynchronous way. But is it guaranteed that the commands are replicated in order? If I have these commands:
SET key1 111
SET key2 222
SET key3 333
If the slave node has "key2", then I can say for sure that it'll also have "key1"?
redis
asked Dec 28 '18 at 0:30
Fabio
2,07232847
In a master-slave scenario, Redis replication is made in an asynchronous way. But is it guaranteed that the commands are replicated in order? If I have these commands:
SET key1 111
SET key2 222
SET key3 333
If the slave node has "key2", then I can say for sure that it'll also have "key1"?
redis
redis
asked Dec 28 '18 at 0:30
Fabio
2,07232847
asked Dec 28 '18 at 0:30
Fabio
2,07232847
asked Dec 28 '18 at 0:30
Fabio
2,07232847
asked Dec 28 '18 at 0:30
Fabio
2,07232847
asked Dec 28 '18 at 0:30
Fabio
2,07232847
2,07232847
add a comment |
add a comment |
1 Answer
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Yes, commands are replicated in order. Anything else wouldn't actually be replication.
As described in the documentation, both the master and the replica keep track of an offset indicating where they are in the stream of commands. That allows the replica to know if it receives a command out of order and not process it prematurely.
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
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
Yes, commands are replicated in order. Anything else wouldn't actually be replication.
As described in the documentation, both the master and the replica keep track of an offset indicating where they are in the stream of commands. That allows the replica to know if it receives a command out of order and not process it prematurely.
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
add a comment |
Yes, commands are replicated in order. Anything else wouldn't actually be replication.
As described in the documentation, both the master and the replica keep track of an offset indicating where they are in the stream of commands. That allows the replica to know if it receives a command out of order and not process it prematurely.
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
add a comment |
Yes, commands are replicated in order. Anything else wouldn't actually be replication.
As described in the documentation, both the master and the replica keep track of an offset indicating where they are in the stream of commands. That allows the replica to know if it receives a command out of order and not process it prematurely.
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
Yes, commands are replicated in order. Anything else wouldn't actually be replication.
As described in the documentation, both the master and the replica keep track of an offset indicating where they are in the stream of commands. That allows the replica to know if it receives a command out of order and not process it prematurely.
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
answered Dec 28 '18 at 3:08
Kevin Christopher Henry
22.6k46361
22.6k46361
add a comment |
add a comment |
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