Following the indications in here: Redis-QuickStart I installed in my Ubuntu 18.04.01 Server Edition the latest stable Redis release : download.redis.io/redis-stable.tar.gz and tested the result of the compilation:
\o/ All tests passed without errors!
As suggested, I copied redis-server and redis-cli into /usr/local/bin:
marco@pc01:~/redis-stable$ sudo cp src/redis-server /usr/local/bin/
marco@pc01:~/redis-stable$ sudo cp src/redis-cli /usr/local/bin/
But when just executing the redis-server binary it says it can't handle RDB format version 9
marco@pc01:~$ redis-server
11700:C 18 Apr 08:18:52.007 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
11700:C 18 Apr 08:18:52.007 # Redis version=4.0.9, bits=64, commit=00000000, modified=0,
pid=11700, just started
11700:C 18 Apr 08:18:52.007 # Warning: no config file specified, using the default config. In
order to specify a config file use redis-server /path/to/redis.conf
11700:M 18 Apr 08:18:52.007 * Increased maximum number of open files to 10032 (it was
originally set to 1024).
_._
_.-``__ ''-._
_.-`` `. `_. ''-._ Redis 4.0.9 (00000000/0) 64 bit
.-`` .-```. ```\/ _.,_ ''-._
( ' , .-` | `, ) Running in standalone mode
|`-._`-...-` __...-.``-._|'` _.-'| Port: 6379
| `-._ `._ / _.-' | PID: 11700
`-._ `-._ `-./ _.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' | http://redis.io
`-._ `-._`-.__.-'_.-' _.-'
|`-._`-._ `-.__.-' _.-'_.-'|
| `-._`-._ _.-'_.-' |
`-._ `-._`-.__.-'_.-' _.-'
`-._ `-.__.-' _.-'
`-._ _.-'
`-.__.-'
11700:M 18 Apr 08:18:52.008 # Server initialized
11700:M 18 Apr 08:18:52.008 # Can't handle RDB format version 9
11700:M 18 Apr 08:18:52.008 # Fatal error loading the DB: Invalid argument. Exiting.
Searching for some hints I found this : Can't handle RDB format version 8 whose solution was to use the lastest version of redis. But I downloaded the latest stable release of Redis!!! So... how to solve the problem?
Looking forward to your kind help. Marco
As said in the comment below, I SOLVED the problem by deleting /home/marco/dump.rdb file.
