Redis server port already in use

Question

I'm using Redis version 2.2.13

jack@ubuntu:~/redis$ src/redis-server [23900] 14 Sep 14:28:52 # Warning: no config file specified, using the default config. In order to specify a config file use 'redis-server /path/to/redis.conf' [23900] 14 Sep 14:28:52 # Opening port: bind: Address already in use 

So I follow the above instructions and try

redis-server $HOME/redis/redis.conf 

Which gives me the following error:

*** FATAL CONFIG FILE ERROR *** Reading the configuration file, at line 135 >>> 'slave-serve-stale-data yes' Bad directive or wrong number of arguments 

The file has the following comments:

# When a slave lost the connection with the master, or when the replication # is still in progress, the slave can act in two different ways: # # 1) if slave-serve-stale-data is set to 'yes' (the default) the slave will #    still reply to client requests, possibly with out of data data, or the #    data set may just be empty if this is the first synchronization. # # 2) if slave-serve-stale data is set to 'no' the slave will reply with #    an error "SYNC with master in progress" to all the kind of commands #    but to INFO and SLAVEOF. 

How can I resolve this issue?

Answer 1

I had this same problem, but I forgot that redis persists. If you get this error, try this command:

redis-cli ping 

if you get PONG as a response, then Redis is running, and the port is in use, by Redis.