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Configuration

Connection refused. 2017-09-08T11:43+00:00 herokuworker.1: State changed from up to crashed 2017-09-08T11:33+00:00 herokuworker.1: Process exited with status 1 2017-09-08T11:55:10+00:00 appheroku-redis: source=REDIS sample#active-connections=2 sample#load-avg-1m=0.315 sample#load-avg-5m=0.21 sample#load-avg-15m=0.16. My goal is to connect Redis to my server using Docker containers. From reading documentation I have utilized the following code. I have read multiple sources to try to find an answer and am coming up short. I have tried creating my own dockerfile-redis but npm is not able to install redis.

There are many different ways to configure Redis, and Stackexchange.redis provides a rich configuration model that we can pass in when calling the Connect or connectasync method:

Here the parameter configure can be: configurationoptions Instance configuration string mode configuration

The latter is also a marker form of the previous one. basic configuration-through string configuration

The simplest configuration instance is configured with the hostname:

This connects to a single server on your computer and defaults to Redis's default port: 6379. There are also options to append in a comma-delimited manner. The port is usually represented by a colon (:). The name of the configuration option followed by a = sign. As shown below:

We are free to convert each other between string and configurationoptions , as follows:

Or

The most common way is to store the basic information in a string and then apply this specific basic information at run time:

Examples of using Redis and attaching passwords on Microsoft Azure:

The configurationoptions object has many properties, and the description of all options is in the smart tip. The following table is a description of some of the most commonly used options:

The tokens in the configuration string are separated by commas; Any service terminal that does not have a = symbol is assumed to be a redis. If SSL is not turned on and the terminal does not specify an explicit port, then 6379 will be used as the port, and 6380 will be the port if SSL is turned on. tokens that begin with ∗∗ are mapped as commands, for example: ∗∗** The starting tag is mapped as a command, for example: **config=cfg . automatic configuration and manual configuration

In many common cases, Stackexchange.redis will automatically configure multiple settings options, including server type and version, connection timeout, and master/slave relationship configuration. However, sometimes this command is forbidden in Redis server. In this case, it is very useful to provide more information:

The above configuration is equivalent to the following string configuration:

Some of the less common features in Redis are that you can disable or rename individual commands. As shown earlier, this is achieved through Commandmap , not through hashset

The above configuration is equivalent to the following string configuration (in the connection string):

Twemproxy is a tool that allows multiple Redis instances to be used as a single service, with built-in sharding and fault tolerance (much like a redis cluster, but it is implemented separately). Twemproxy simplifies the usability of feature settings. To avoid manual configuration, theProxy option can be configured like this:

Usually Stackexchange.redis will automatically resolve the master/slave node problem. However, you may not be using a management tool like a Redis cluster or Redis-sentinel , and you may encounter an occasion where you have multiple primary nodes (for example: when we reset a node for maintenance purposes), It may re-appear on the network as a primary node. To solve this problem, Stackexchange.redis can use the concept of breaking the deadlock (tradeoff decision), which applies only to situations where multiple hosts are discovered. To be compatible with Booksleeve, the default key name is '__booksleeve_tiebreak'(which is always in the database indexed as 0). This is used as a simple voting mechanism to help the decision-making that is the preferred master node, so that it works correctly for routing.

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Similarly, when the configuration changes (especially in the master/slave configuration), this will be very important for the connection instance, which can make them aware of the new situation (through ifno,config , etc.). Stackexchange.redis pub/sub send such notifications via auto-subscription. For a similar reason, the default is the key name is '__booksleeve_masterchanged'.

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These two options can be customized or disabled (set to ') and can be passed . Configurationchannel and . Tiebreaker to configure the properties.

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These settings can also be configured with Iserver.makemaster () to set up messages that break the deadlock (Tie-breaker) and broadcast configuration changes in the database. With the connectionmultiplexer.publishreconfigure method, configuration messages can also use the master/slave update alone to request that all nodes refresh their configuration.