redis:[ERR] Not all 16384 slots are covered by nodes.

冷不防 2022-07-19 08:40 201阅读 0赞

启动redis cluster后运行check 检查到错误

[root@192.168.56.160 redis]redis-trib.rb check 127.0.0.1:7000
    >>> Performing Cluster Check (using node 127.0.0.1:7000)
    M: 3d1808df8a82dd705a67e8fef26cb8c8482bd69a 127.0.0.1:7000
       slots:0-5459 (5460 slots) master
       1 additional replica(s)
    S: 6fa8513ee71e0153e2e746fef2a3b1ce08348766 192.168.56.159:7003
       slots: (0 slots) slave
       replicates a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32
    M: 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 192.168.56.160:7001
       slots:10923-16383 (5461 slots) master
       1 additional replica(s)
    S: d057d13bc64b9be9f68c0291700965b3751127c0 192.168.56.159:7005
       slots: (0 slots) slave
       replicates 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c
    M: a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 192.168.56.160:7002
       slots:5461-10922 (5462 slots) master
       1 additional replica(s)
    S: a84cb46e811925ee48f0ff8c25e753be752fc45c 192.168.56.159:7004
       slots: (0 slots) slave
       replicates 3d1808df8a82dd705a67e8fef26cb8c8482bd69a
    [ERR] Nodes don't agree about configuration!
    >>> Check for open slots...
    >>> Check slots coverage...
    [ERR] Not all 16384 slots are covered by nodes.

可以看到5460号slots没有被分配，根据网上攻略 fix

[root@192.168.56.160 redis]redis-trib.rb fix 127.0.0.1:7000
    >>> Performing Cluster Check (using node 127.0.0.1:7000)
    M: 3d1808df8a82dd705a67e8fef26cb8c8482bd69a 127.0.0.1:7000
       slots:0-5459 (5460 slots) master
       1 additional replica(s)
    S: 6fa8513ee71e0153e2e746fef2a3b1ce08348766 192.168.56.159:7003
       slots: (0 slots) slave
       replicates a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32
    M: 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 192.168.56.160:7001
       slots:10923-16383 (5461 slots) master
       1 additional replica(s)
    S: d057d13bc64b9be9f68c0291700965b3751127c0 192.168.56.159:7005
       slots: (0 slots) slave
       replicates 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c
    M: a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 192.168.56.160:7002
       slots:5461-10922 (5462 slots) master
       1 additional replica(s)
    S: a84cb46e811925ee48f0ff8c25e753be752fc45c 192.168.56.159:7004
       slots: (0 slots) slave
       replicates 3d1808df8a82dd705a67e8fef26cb8c8482bd69a
    [ERR] Nodes don't agree about configuration!
    >>> Check for open slots...
    >>> Check slots coverage...
    [ERR] Not all 16384 slots are covered by nodes.
    >>> Fixing slots coverage...
    List of not covered slots: 5460
    Slot 5460 has keys in 0 nodes: 
    The folowing uncovered slots have no keys across the cluster:
    5460
    Fix these slots by covering with a random node? (type 'yes' to accept): yes
    >>> Covering slot 5460 with 192.168.56.160:7002
    /usr/local/ruby/lib/ruby/gems/2.2.0/gems/redis-3.2.2/lib/redis/client.rb:114:in `call': ERR Slot 5460 is already busy (Redis::CommandError)
            from /usr/local/ruby/lib/ruby/gems/2.2.0/gems/redis-3.2.2/lib/redis.rb:2646:in `block in method_missing'
            from /usr/local/ruby/lib/ruby/gems/2.2.0/gems/redis-3.2.2/lib/redis.rb:57:in `block in synchronize'
            from /usr/local/ruby/lib/ruby/2.2.0/monitor.rb:211:in `mon_synchronize'
            from /usr/local/ruby/lib/ruby/gems/2.2.0/gems/redis-3.2.2/lib/redis.rb:57:in `synchronize'
            from /usr/local/ruby/lib/ruby/gems/2.2.0/gems/redis-3.2.2/lib/redis.rb:2645:in `method_missing'
            from /usr/local/bin/redis-trib.rb:462:in `block in fix_slots_coverage'
            from /usr/local/bin/redis-trib.rb:459:in `each'
            from /usr/local/bin/redis-trib.rb:459:in `fix_slots_coverage'
            from /usr/local/bin/redis-trib.rb:398:in `check_slots_coverage'
            from /usr/local/bin/redis-trib.rb:361:in `check_cluster'
            from /usr/local/bin/redis-trib.rb:1139:in `fix_cluster_cmd'
            from /usr/local/bin/redis-trib.rb:1695:in `<main>'

进入到集群节点查看

192.168.56.160:7002> CLUSTER NODES
    d057d13bc64b9be9f68c0291700965b3751127c0 192.168.56.159:7005 slave 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 0 1470880315004 6 connected
    3d1808df8a82dd705a67e8fef26cb8c8482bd69a 192.168.56.160:7000 master - 0 1470880315505 1 connected 0-5460
    36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 192.168.56.160:7001 master - 0 1470880316013 2 connected 10923-16383
    a84cb46e811925ee48f0ff8c25e753be752fc45c 192.168.56.159:7004 slave 3d1808df8a82dd705a67e8fef26cb8c8482bd69a 0 1470880316014 5 connected
    a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 192.168.56.160:7002 myself,master - 0 0 7 connected 5461-10922
    6fa8513ee71e0153e2e746fef2a3b1ce08348766 192.168.56.159:7003 slave a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 0 1470880313997 7 connected
    发现5460号已经在7000端口上~~~不明白，删除掉
    192.168.56.160:7002> CLUSTER DELSLOTS 5460
    OK
    192.168.56.160:7002> CLUSTER NODES
    d057d13bc64b9be9f68c0291700965b3751127c0 192.168.56.159:7005 slave 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 0 1470880645436 6 connected
    3d1808df8a82dd705a67e8fef26cb8c8482bd69a 192.168.56.160:7000 master - 0 1470880645937 1 connected 0-5459
    36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 192.168.56.160:7001 master - 0 1470880644932 2 connected 10923-16383
    a84cb46e811925ee48f0ff8c25e753be752fc45c 192.168.56.159:7004 slave 3d1808df8a82dd705a67e8fef26cb8c8482bd69a 0 1470880646946 5 connected
    a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 192.168.56.160:7002 myself,master - 0 0 7 connected 5461-10922
    6fa8513ee71e0153e2e746fef2a3b1ce08348766 192.168.56.159:7003 slave a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 0 1470880646442 7 connected

再次fix

再次check

[root@192.168.56.160 redis]redis-trib.rb check 127.0.0.1:7000
    >>> Performing Cluster Check (using node 127.0.0.1:7000)
    M: 3d1808df8a82dd705a67e8fef26cb8c8482bd69a 127.0.0.1:7000
       slots:0-5459 (5460 slots) master
       1 additional replica(s)
    S: 6fa8513ee71e0153e2e746fef2a3b1ce08348766 192.168.56.159:7003
       slots: (0 slots) slave
       replicates a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32
    M: 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 192.168.56.160:7001
       slots:10923-16383 (5461 slots) master
       1 additional replica(s)
    S: d057d13bc64b9be9f68c0291700965b3751127c0 192.168.56.159:7005
       slots: (0 slots) slave
       replicates 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c
    M: a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 192.168.56.160:7002
       slots:5460-10922 (5463 slots) master
       1 additional replica(s)
    S: a84cb46e811925ee48f0ff8c25e753be752fc45c 192.168.56.159:7004
       slots: (0 slots) slave
       replicates 3d1808df8a82dd705a67e8fef26cb8c8482bd69a
    [OK] All nodes agree about slots configuration.
    >>> Check for open slots...
    >>> Check slots coverage...
    [OK] All 16384 slots covered.

查看CLUSTER NODES

192.168.56.160:7002> CLUSTER NODES
    d057d13bc64b9be9f68c0291700965b3751127c0 192.168.56.159:7005 slave 36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 0 1470881435270 6 connected
    3d1808df8a82dd705a67e8fef26cb8c8482bd69a 192.168.56.160:7000 master - 0 1470881434766 1 connected 0-5459
    36dc79859c644cb03e6c1b0ec4a2d8bf56cfa39c 192.168.56.160:7001 master - 0 1470881435771 2 connected 10923-16383
    a84cb46e811925ee48f0ff8c25e753be752fc45c 192.168.56.159:7004 slave 3d1808df8a82dd705a67e8fef26cb8c8482bd69a 0 1470881435270 5 connected
    a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 192.168.56.160:7002 myself,master - 0 0 7 connected 5460-10922
    6fa8513ee71e0153e2e746fef2a3b1ce08348766 192.168.56.159:7003 slave a10cf2bdaf1c445c34d6ae447a2f79bc5d4e9c32 0 1470881436274 7 connected

5460已经属于7003端口

总结：虽然check已经OK，总感觉处理过程怪怪的~~没有找到正确的处理步骤，自己猜测执行的~~继续学习！！