Redis is a key-value store. The keys and their values are stored in separate databases, which are numbered db0, db1, …

You can use the redis-cli (command line interface) to interact with the Redis API to control records stored at our component Redis (AWS ElastiCache). We provide the redis-cli on your bastion host.

Preconditions

• Activated redis-cli on the bastion host. You may contact Contact our service team at service@root360.de or create a ticket at https://support.root360.cloud to activate the redis-cli tool on your bastion host

• Access to you the bastion host with your personal OpenSSH access key. via SSH (see Access an environment via OpenSSH or Putty ).

Usage Examples

You can connect to your Redis via the redis-cli with the following command to run on the bastion host: redis-cli -n 1 -h $redishost

1) INFO keyspace

For a quick overview of the number of keys and their average TTL:

redis-cli -h redis info keyspace
# Keyspace
db0:keys=2414,expires=2409,avg_ttl=734255
db1:keys=7177856,expires=0,avg_ttl=0
db2:keys=305579,expires=305579,avg_ttl=37469529

expires is the number of keys with an expiration/ttl configured for that database. 
avg_ttl is the average ttl for keys in that database.

2) List all keys with no TTL

List all keys with no TTL in redis instance redis in redis database DBNUMBER $DBNUMBER in redis instance REDISHOST $REDISHOST:

redis-cli -n DBNUMBER -h REDISHOST --scan | while read LINE ; do TTL=`redis-cli -h REDISHOST ttl "$LINE"`; if [ $TTL -eq  -1 ]; then echo "$LINE"; fi; done;

To run this command you need to replace placeholder DBNUMBER and REDISHOST with information of your environment

3) Redis trouble shooting

If you use redis-cli to troubleshoot redis. Redis will automatically select db0. Select the Redis logical database having the specified zero-based numeric index.
Eg. to work at db1you need to run SELECT

> select db1

before any other command. For list of all redis-cli commands, you can visit https://redis.io/commands/

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