lrange k 0 -1 

127.0.0.1:6379> zadd number 1000 samuel

(integer) 1

127.0.0.1:6379> zadd number 2000 matt

(integer) 1

127.0.0.1:6379> zadd number 3000 jonathan

(integer) 1

127.0.0.1:6379> zscore number jonathan

"3000"

127.0.0.1:6379> zscore number samuel

"1000"

127.0.0.1:6379> zrange number 0 100

1) "samuel"

2) "matt"

3) "jonathan"

127.0.0.1:6379> zrange number 0 -1

1) "samuel"

2) "matt"

3) "jonathan"

127.0.0.1:6379> zrange number 0 1

1) "samuel"

2) "matt"

127.0.0.1:6379> zrange number 0 -1 withscores

1) "samuel"

2) "1000"

3) "matt"

4) "2000"

5) "jonathan"

6) "3000"

127.0.0.1:6379> zrem number "matt"

(integer) 1

127.0.0.1:6379> zrange number 0 -1 withscores

1) "samuel"

2) "1000"

3) "jonathan"

4) "3000"

127.0.0.1:6379> zrangebyscore number 3000 4000

1) "jonathan"

127.0.0.1:6379> zrange number 0 -1

1) "samuel"

2) "jonathan"

127.0.0.1:6379> zcount number -inf +inf

(integer) 2

127.0.0.1:6379> zcount number 0 4000

(integer) 2

127.0.0.1:6379> zcount number -inf 1000

(integer) 1

127.0.0.1:6379> zadd number  5000 jack

(integer) 1

127.0.0.1:6379> zadd number  6000 soa

(integer) 1

127.0.0.1:6379> zrangebylex number - +

1) "samuel"

2) "jonathan"

3) "jack"

4) "soa"

127.0.0.1:6379> zrangebylex number "[soa" +

1) "soa"

127.0.0.1:6379> zlexcount number - +

(integer) 4

127.0.0.1:6379> zlexcount number "[soa" +

(integer) 1

127.0.0.1:6379> zrangebyscore  number -inf inf

1) "samuel"

2) "jonathan"

3) "jack"

4) "soa"

127.0.0.1:6379> zrangebyscore  number -inf inf  withscores

1) "samuel"

2) "1000"

3) "jonathan"

4) "3000"

5) "jack"

6) "5000"

7) "soa"

8) "6000"

127.0.0.1:6379> zrangebyscore  number -inf 5000 withscores

1) "samuel"

2) "1000"

3) "jonathan"

4) "3000"

5) "jack"

6) "5000"

127.0.0.1:6379> zrangebyscore  number -inf (4000 withscores

1) "samuel"

2) "1000"

3) "jonathan"

4) "3000"

127.0.0.1:6379> zrangebyscore  number 100 3000 withscores

1) "samuel"

2) "1000"

3) "jonathan"

4) "3000"

127.0.0.1:6379> zrangebyscore  number -inf inf  withscores

1) "samuel"

2) "1000"

3) "jonathan"

4) "3000"

5) "jack"

6) "5000"

7) "soa"

127.0.0.1:6379> zremrangebyrank number 1 1

(integer) 1

127.0.0.1:6379> zrange number 0 -1

1) "samuel"

2) "jack"

3) "soa"

127.0.0.1:6379> zrangebylex number - +

1) "samuel"

2) "jack"

3) "soa"

127.0.0.1:6379> zrangebylex number "(jack" "(soa"

1) "samuel"

2) "jack"

127.0.0.1:6379> zremrangebylex number "(jack" "(soa"

(integer) 2

127.0.0.1:6379> zrangebylex number - +

1) "soa"

127.0.0.1:6379> zrevrange number 0 -1 withscores

1) "soa"

2) "6000"

3) "jonathan"

4) "3000"

5) "matt"

6) "2000"

7) "samuel"

8) "1000"

127.0.0.1:6379> zremrangebyrank number 3 -1

(integer) 1

127.0.0.1:6379> zrevrange number 0 -1 withscores

1) "jonathan"

2) "3000"

3) "matt"

4) "2000"

5) "samuel"

6) "1000"

127.0.0.1:6379> zremrangebyrank number 1 -1

(integer) 2

127.0.0.1:6379> zrevrange number 0 -1 withscores

1) "samuel"

2) "1000"

127.0.0.1:6379> zadd feed -900 1st

(integer) 1

127.0.0.1:6379> zadd feed -950 2nd

(integer) 1

127.0.0.1:6379> zadd feed -955 3rd

(integer) 1

127.0.0.1:6379> zrevrange feed 0 -1 withscores

1) "1st"

2) "-900"

3) "2nd"

4) "-950"

5) "3rd"

6) "-955"

127.0.0.1:6379> zremrangebyrank feed 2 -1

(integer) 1

127.0.0.1:6379> zrevrange feed 0 -1 withscores

1) "2nd"

2) "-950"

3) "3rd"

4) "-955"

127.0.0.1:6379> zrange number 0 -1 withscores

1) "samuel"

2) "1000"

3) "matt"

4) "2000"

5) "jonathan"

6) "3000"

7) "soa"

8) "6000"

127.0.0.1:6379> zrank number "jonathan"

(integer) 2

127.0.0.1:6379> zrank number "soa"

(integer) 3

127.0.0.1:6379> zrevrange number 0 -1 withscores

1) "soa"

2) "6000"

3) "jonathan"

4) "3000"

5) "matt"

6) "2000"

7) "samuel"

8) "1000"

127.0.0.1:6379> zrevrank number "soa"

(integer) 0

127.0.0.1:6379> zrevrank number "samuel"

(integer) 3

/usr/local/redis/src/redis-server /etc/redis/6379.conf

/usr/local/redis/src/redis-server *:6379

/usr/local/redis/src/redis-server 0.0.0.0:6379

$ telnet 1.2.3.4 6379

Escape character is '^]'.

-DENIED Redis is running in protected mode because protected mode is enabled, no bind address was specified, no authentication password is requested to clients. In this mode connections are only accepted from the loopback interface. If you want to connect from external computers to Redis you may adopt one of the following solutions: 1) Just disable protected mode sending the command 'CONFIG SET protected-mode no' from the loopback interface by connecting to Redis from the same host the server is running, however MAKE SURE Redis is not publicly accessible from internet if you do so. Use CONFIG REWRITE to make this change permanent. 2) Alternatively you can just disable the protected mode by editing the Redis configuration file, and setting the protected mode option to 'no', and then restarting the server. 3) If you started the server manually just for testing, restart it with the '--protected-mode no' option. 4) Setup a bind address or an authentication password. NOTE: You only need to do one of the above things in order for the server to start accepting connections from the outside.

Connection closed by foreign host.

$ redis-cli

> CONFIG SET protected-mode no

$ telnet 1.2.3.4 6379

Escape character is '^]'.

OK

bind 0.0.0.0

$ ./src/redis-cli  -c -p 7000

> cluster nodes

928190fd... 1.1.1.1:7000 master - 0 1466475134595 2 connected 3277-6553

bb90967f... 1.1.1.2:7000 master - 0 1466475134595 4 connected 9830-13106

d2c52014... 1.1.1.3:7000 master - 0 1466475133995 1 connected 0-3276

7a31e871... 1.1.1.4:7000 master - 0 1466475134995 3 connected 6554-9829

ffc4b321... 1.1.1.5:7000 myself,master - 0 0 5 connected 13107-16383

> cluster nodes

6b38bb... 1.1.1.1:7379 master - 0 0 25 connected 0-5460                      

7bb78c... 127.0.0.1:7380 master - 0 1449730618304 2 connected 5461-10922       

164888... 127.0.0.1:7381 master - 0 1449730618304 3 connected 10923-16383      

b8b5ee... 127.0.0.1:7382 slave 6b38bb... 0 1449730618304 25 connected  

> cluster keyslot 20000226

(integer) 475

> cluster keyslot a

(integer) 15495

https://github.com/antirez/redis/issues/1962

You can't. You would have to ask each node seperately. But please avoid KEYS * whenever possible. If you really must iterate the whole keyspace of an instance use SCAN.

Btw, this issue tracker should be used for bugs or improvements to the Redis server. For questions like your's please ask on the mailing list or in the irc channel.

> set a a

-> Redirected to slot [15495] located at 172.17.64.45:7000

OK

> set b b

-> Redirected to slot [3300] located at 172.17.64.42:7000

OK

> keys *

1) "b"

> del a

-> Redirected to slot [15495] located at 172.17.64.45:7000

(integer) 1

> del b

-> Redirected to slot [3300] located at 172.17.64.42:7000

(integer) 1

> cluster info

cluster_state:ok

cluster_slots_assigned:16384

cluster_slots_ok:16384

cluster_slots_pfail:0

cluster_slots_fail:0

cluster_known_nodes:5

cluster_size:5

cluster_current_epoch:5

cluster_my_epoch:1

cluster_stats_messages_sent:6824123

cluster_stats_messages_received:6824123

• Allow writes to the slave using CONFIG SET slave-read-only no

참고

상황에 따라서... 레디스 슬레이브이지만, master로 변경하는 과정에서 사용할 수 있다.

그 때는 CONFIG SET  slave_read_only no로 변경해서 쓰기를 받아들이고, master를 중단하는 방법을 사용할 수 있다.
이를 위해서 해당 설정이 존재한다.

int main(int argc, char **argv) {

...

    #ifdef __linux__

       linuxMemoryWarnings();

  #endif

...

}

#ifdef __linux__

int linuxOvercommitMemoryValue(void) {

    FILE *fp = fopen("/proc/sys/vm/overcommit_memory","r");

    char buf[64];

    if (!fp) return -1;

    if (fgets(buf,64,fp) == NULL) {

        fclose(fp);

        return -1;

    }

    fclose(fp);

    return atoi(buf);

}

void linuxMemoryWarnings(void) {

    if (linuxOvercommitMemoryValue() == 0) {

        serverLog(LL_WARNING,"WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.");

    }

    if (THPIsEnabled()) {

        serverLog(LL_WARNING,"WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.");

    }

}

#endif /* __linux__ */

#ifdef __linux__

/* Returns 1 if Transparent Huge Pages support is enabled in the kernel.

 * Otherwise (or if we are unable to check) 0 is returned. */

int THPIsEnabled(void) {

    char buf[1024];

    FILE *fp = fopen("/sys/kernel/mm/transparent_hugepage/enabled","r");

    if (!fp) return 0;

    if (fgets(buf,sizeof(buf),fp) == NULL) {

        fclose(fp);

        return 0;

    }

    fclose(fp);

    return (strstr(buf,"[never]") == NULL) ? 1 : 0;

}

#endif

sudo echo never > /sys/kernel/mm/transparent_hugepage/enabled

127.0.0.1:6379> RPUSH list2 a b c

(integer) 3

127.0.0.1:6379> BRPOP list1 list2 0

1) "list2"

2) "c"

127.0.0.1:6379> BRPOP list1 list2 0

1) "list2"

2) "b"

127.0.0.1:6379> BRPOP list1 list2 0

1) "list2"

2) "a"

127.0.0.1:6379> BRPOP list1 list2 0

(블럭됨)

127.0.0.1:6379> RPUSH list2 a b c

(integer) 3

127.0.0.1:6379> BLPOP list1 list2 0

1) "list2"

2) "a"

127.0.0.1:6379> BLPOP list1 list2 0

1) "list2"

2) "b"

127.0.0.1:6379> BLPOP list1 list2 0

1) "list2"

2) "c"

127.0.0.1:6379> BLPOP list1 list2 0

(블럭됨)

127.0.0.1:6379> RPUSH list1 a b c

(integer) 3

127.0.0.1:6379> BRPOPLPUSH list1 list2 0

"c"

127.0.0.1:6379> BRPOPLPUSH list1 list2 0

"b"

127.0.0.1:6379> BRPOPLPUSH list1 list2 0

"a"

127.0.0.1:6379> BRPOPLPUSH list1 list2 0

(블럭됨)

127.0.0.1:6379> LLEN list2

(integer) 3

127.0.0.1:6379> LRANGE list2 0 -1

1) "a"

2) "b"

3) "c"