另外一种获取redis cluster主从关系和slot分布的方法

条条大路通罗马，通过最近学习redis cluster 观察其输出，发现了另外一种获取master-slave关系的方法。

[redis@lxd-vm1 ~]$ cat get_master_slave2.sh
redis-cli -h $1 -p $2 -a abc123 -c cluster nodes > cluster_nodes.txt
echo "master to slave info..."
cat cluster_nodes.txt | awk '/master/{print $1,$2}' | sort -nk2 -t ':'  > master.txt
cat cluster_nodes.txt | awk '/slave/{print $2,$4}' | sort -nk1 -t ':'  > slave.txt
cat master.txt | while read m
do
    master_ip_port=`echo $m | awk '{print $2}'`
    master_tag=`echo $m | awk '{print $1}'`
    cat slave.txt | while read s
    do
        slave_ip_port=`echo $s | awk '{print $1}'`
        slave_tag=`echo $s | awk '{print $2}'`
        if [[ ${master_tag} == ${slave_tag} ]];then
        echo "${master_ip_port}->${slave_ip_port}"
        fi
    done
done

echo ""
echo "master slots info...."
cat cluster_nodes.txt |grep master | uniq | sort -nk9 > ./all
cat all | awk '{print $2}' > 222
cat all | awk -F " "  '{for (i=9;i<=NF;i++)printf("%s ", "["$i"]");print " "}' > 999
paste -d "#" 222 999 > 2_9.txt
cat 2_9.txt
[redis@lxd-vm1 ~]$ sh get_master_slave2.sh 5.5.5.101 29001
master to slave info...
5.5.5.101:29001@39001->5.5.5.102:29001@39001
5.5.5.102:29002@39002->5.5.5.103:29002@39002
5.5.5.103:29003@39003->5.5.5.101:29003@39003
5.5.5.101:29004@39004->5.5.5.102:29004@39004

master slots info....
5.5.5.103:29003@39003#[0-820] [] [13109-16383]
5.5.5.102:29002@39002#[821-823] [1383-2199] [7647-10922]
5.5.5.101:29004@39004#[824-1382] [2200-2499] [] [5462-6828] [10923-12290]
5.5.5.101:29001@39001#[2500-3000] [3002-3299] [3301-5461] [6829-7646] [12291-13108]
[redis@lxd-vm1 ~]$