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REDIS QUESTIONS

How to use JedisCluster effectively
How to use JedisCluster effectively
hope this fix your issue I have figured out the way that JedisCluster works. Internally, it has already used Jedis Pool.The operations that JedisCluster provides follow the same pattern, take set for example:
TAG : redis
Date : October 14 2020, 02:00 AM , By : Chi Ho
What are the key difference in using Redis Cache via ConnectionMultiplexer and AddStackExchangeRedisCache(IDistributedCa
What are the key difference in using Redis Cache via ConnectionMultiplexer and AddStackExchangeRedisCache(IDistributedCa
I hope this helps . With ConnectionMultiplexer, you have the full list of commands that you can execute on your Redis server. With DistributedCaching, you can only store/retrieve a byte array or a string, and you can not execute any other commands th
TAG : redis
Date : October 13 2020, 12:00 PM , By : Bianca Badea
Can I define a custom compare function for redis zset?
Can I define a custom compare function for redis zset?
will help you Short answer: no, you can't do thatHowever, you can often compose multiple keys in such a way to make them sortable. In your case, an obvious candidate would be to determine the max range of the three pieces, and just compose them all i
TAG : redis
Date : October 13 2020, 07:00 AM , By : GameSucker
Redis advantages of Sentinel and Cluster
Redis advantages of Sentinel and Cluster
it should still fix some issue I will try to answer some of your questions but first let me describe the different deployment options of Redis. Redis has three basic deployments: single node, sentinel and cluster. Single node - The basic solution whe
TAG : redis
Date : October 12 2020, 12:00 AM , By : Paulie
Redis : Sorted sets for specific SMEMBERS
Redis : Sorted sets for specific SMEMBERS
wish help you to fix your issue You can use ZINTERSTORE as it can work with regular SETs as well. Note that it will use 1 for the elements scores, but you can remove it with a weight 0:ZINTERSTORE aux_zset 2 friends users weights 0 1
TAG : redis
Date : October 11 2020, 05:00 PM , By : Ayşegül
GeoServer could not get resources from Redis pool
GeoServer could not get resources from Redis pool
it should still fix some issue Are you sure that your Redis instance is accessible on localhost:6379? Are you running Redis 5+ (GeoMesa was developed against Redis 5)?You could try running through the Redis GeoMesa quickstart, which would eliminate a
TAG : redis
Date : October 11 2020, 12:00 PM , By : Gabe Payne
Storing 13 Million floats and integer in redis
Storing 13 Million floats and integer in redis
wish helps you You can do a real good optimization by creating buckets of index vs float values. Hashes are very memory optimized internally. So assume your data in original file looks like this:
TAG : redis
Date : October 10 2020, 06:00 AM , By : Jan
Copying all KEYS from one db to another in same Redis
Copying all KEYS from one db to another in same Redis
I wish this help you It's not an error.In your case, the keys you scanned might have been expired when you try to migrate it. If the key you want to migrate doesn't exist in the source database, MIGRATE command will return NOKEY.
TAG : redis
Date : October 08 2020, 07:00 AM , By : Manolo Hernández Kur
Whether redis scan will scan data inserted after scan operation started?
Whether redis scan will scan data inserted after scan operation started?
help you fix your problem From the doc:
TAG : redis
Date : October 06 2020, 08:00 AM , By : Filip
TYPE option does not work for REDIS SCAN command
TYPE option does not work for REDIS SCAN command
wish help you to fix your issue The code for TYPE option is still in the unstable branch, and haven't been release to the latest version of Redis. So far, you cannot use that command. You have to wait for the new release to support this feature, or t
TAG : redis
Date : October 05 2020, 09:00 AM , By : RA123
Is it possible to use Redis as In Process or Local cache?
Is it possible to use Redis as In Process or Local cache?
it fixes the issue Yes, you can use it as a local cache server.You can set up Redis into your local (Ubuntu) machine or in LAN and by pointing it you can use.
TAG : redis
Date : October 05 2020, 06:00 AM , By : Rick
How to expire a HyperLogLog in Redis?
How to expire a HyperLogLog in Redis?
wish help you to fix your issue NO, you cannot expire items added to the HLL. Instead, EXPIRE command will expire the whole HLL.In order to achieve your goal, you can create HLL for each hour, and expire the whole HLL after some time.
TAG : redis
Date : October 04 2020, 07:00 PM , By : benjamir
Regarding Entering Key in LPush
Regarding Entering Key in LPush
this one helps. The 'WRONGTYPE' error means that the key already has a value but of another type. In your case, the key isn't a list so you can LPUSH into it.You can find the key's type with the TYPE command. If you want to create a list in that key,
TAG : redis
Date : October 04 2020, 08:00 AM , By : Ginseng roses
How to tag a key in REDIS so later I can remove all keys that match this tag?
How to tag a key in REDIS so later I can remove all keys that match this tag?
help you fix your problem There's no built-in way to do that. Instead, you need to tag these pages by yourself: When setting a page-data pair, also put the page id into a SET of the corresponding user. When you want to remove all pages of a given use
TAG : redis
Date : October 04 2020, 08:00 AM , By : mPhillips
Redis multiple persistence policies
Redis multiple persistence policies
help you fix your problem I was wondering whether it is possible to have a single Redis server instance having multiple active persistence policies. , Is this doable?
TAG : redis
Date : October 02 2020, 03:00 AM , By : Wayne Patterson
How to create a key that will sum 2 keys values in Redis
How to create a key that will sum 2 keys values in Redis
I wish this helpful for you By using EVAL(Lua interpreter) it will work., Command to achieve A+B and set in C,EVAL "return redis.call('set','C',redis.call('get','A')+redis.call('get','B'))" 0
TAG : redis
Date : October 01 2020, 07:00 PM , By : Saud
Clear Redis-Cli history on Windows machine
Clear Redis-Cli history on Windows machine
I hope this helps . If you don't want the history to be kept in %HOMEDRIVE%%HOMEPATH%\.rediscli_history file at all - you can set the environment variable REDISCLI_HISTFILE=/dev/null and it will prevent the history to be saved.
TAG : redis
Date : September 30 2020, 01:00 AM , By : Gowtham
Redis MEMORY USAGE & INFO MEMORY
Redis MEMORY USAGE & INFO MEMORY
With these it helps No, even if you sum up that output from MEMORY USAGE, you will not get to the sums reported by INFO MEMORY.MEMORY USAGE attempts to estimate the memory usage associated with a given key - the data but also its overheads.
TAG : redis
Date : September 27 2020, 11:00 AM , By : BrownD
Implementing Queue with unique elements in Redis
Implementing Queue with unique elements in Redis
will help you I'd actually look into using a single Sorted Set, setting the scores as timestamps and using ZADD's "NX" flag. This will provide both ordering and uniqueness.
TAG : redis
Date : September 26 2020, 10:00 PM , By : Shao Ruizhao
AWS RedisConnectionException: No connection is available to service this operation. SocketClosed Exception
AWS RedisConnectionException: No connection is available to service this operation. SocketClosed Exception
seems to work fine Yes, Issue has been resolved for now. There is some issue in old version of Redis which although the timeout set, is not closing the connections.
TAG : redis
Date : September 26 2020, 01:00 PM , By : Samson
Why redis pubsub working is independent of database?
Why redis pubsub working is independent of database?
wish helps you I am newbie to Redis and trying to understand concept of Redis PubSub. , it's a matter of design choice really.
TAG : redis
Date : September 26 2020, 09:00 AM , By : Jiim
Which one to use Hset or HMSet in Redis?
Which one to use Hset or HMSet in Redis?
help you fix your problem HMSET has been deprecated as of redis 4.0.0 in favor of using HSET with multiple key/value pairs:https://redis.io/commands/hset
TAG : redis
Date : September 25 2020, 04:00 PM , By : James J Effarah
Is there a way to not allow anyone to flushAll in redis?
Is there a way to not allow anyone to flushAll in redis?
it helps some times You can use rename-command in your config. According to the security section of redis.conf:
TAG : redis
Date : September 25 2020, 03:00 PM , By : flundar
Limit the allowed commands for Redis client
Limit the allowed commands for Redis client
it helps some times Up to Redis v5, there is no built-in way to do that.Starting with Redis v6 (ETA soon(TM) ;)) you will be able to use the Access Control List features. In a nutshell, ACL allows the definition of users and their respective permissi
TAG : redis
Date : September 25 2020, 03:00 PM , By : Mohamed Lamrabet
check keys that are set without expiry time in aws redis
check keys that are set without expiry time in aws redis
seems to work fine Redis doesn't store the key's creation time. If you want, you can maintain a separate data structure in order to store this information. For example you can use a hash that maps each key to its creation (or last update) time. It's
TAG : redis
Date : September 13 2020, 09:00 AM , By : SK Prajapati
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