3.7.3 expiring keys. when writing data into redis, there may be a point at which data is no longer needed. we can remove the data explicitly with del, or if we want to remove an entire key after a specified timeout, we can use what’s known as expiration.when we say that a key has a time to live, or that it’ll expire at a given time, we mean that redis will automatically delete the key when. We can use the get command to ask redis for the value of a key: get key let's retrieve the value of service: get service we can update the value of a key simply by overwriting its data as mentioned earlier. this time, redis replied with (integer) -2. starting with redis 2.8, ttl returns:. Suppose i do this in redis at 13:30 20 feb 2020, > set foo "bar spam" ok i want to get time of creation of foo.is there something like > gettime foo 13:30 20 feb 2020.
Instead with redis as a datastore, you can fetch time ranges of data (using the sorted set as your index to get keys, then the keys to get hash data like before), drop that into your existing. Redis has quickly become one of the top open source key value stores around. we at stackify have been using windows azure’s managed cache but have had a long history of intermittent problems with it. so we decided it was time to bite the bullet and give redis a try, which azure now supports and. When connecting to an azure redis cache instance, cache clients need the host name, ports, and a key for the cache. some clients might refer to these items by slightly different names. you can retrieve this information in the azure portal..
