Storage 负载均衡Graph
用户可以使用BALANCE语句平衡分片和 Raft leader 的分布，或者清空某些 Storage 服务器方便进行维护。详情请参见 Graph。
历史版本兼容性
不支持BALANCE DATA命令。
均衡 leader 分布Graph
用户可以使用命令BALANCE LEADER均衡 leader 分布。
示例Graph
nebula> BALANCE LEADER;
用户可以执行SHOW HOSTS检查结果。
nebula> SHOW HOSTS;
+------------------+------+----------+--------------+-----------------------------------+------------------------+---------+
| Host | Port | Status | Leader count | Leader distribution | Partition distribution | Version |
+------------------+------+----------+--------------+-----------------------------------+------------------------+---------+
| "192.168.10.100" | 9779 | "ONLINE" | 4 | "basketballplayer:3" | "basketballplayer:8" | "3.0.1" |
| "192.168.10.101" | 9779 | "ONLINE" | 8 | "basketballplayer:3" | "basketballplayer:8" | "3.0.1" |
| "192.168.10.102" | 9779 | "ONLINE" | 3 | "basketballplayer:3" | "basketballplayer:8" | "3.0.1" |
| "192.168.10.103" | 9779 | "ONLINE" | 0 | "basketballplayer:2" | "basketballplayer:7" | "3.0.1" |
| "192.168.10.104" | 9779 | "ONLINE" | 0 | "basketballplayer:2" | "basketballplayer:7" | "3.0.1" |
| "192.168.10.105" | 9779 | "ONLINE" | 0 | "basketballplayer:2" | "basketballplayer:7" | "3.0.1" |
+------------------+------+----------+--------------+-----------------------------------+------------------------+---------+
Caution
在 NebulaGraph 3.0.1 中，Leader 切换会导致短时的大量请求错误（Storage Error E_RPC_FAILURE），处理方法见 Graph。
最后更新: March 15, 2022