1，执行创建语句过程中出现：
[Err] 1064 - errCode = 2, detailMessage = Failed to find enough host in all backends. need: 3
原因：
语句中指定了 PROPERTIES("replication_num" = "3");
结果BE只有2个：
查看对应节点的日志：.
==> ./be.WARNING.log.20200921-141304 <==
W1026 18:13:39.139992 19091 utils.cpp:101] fail to get master client from cache. host=192.168.6.143, port=9020, code=7
W1026 18:13:39.140386 19091 task_worker_pool.cpp:1185] finish report olap table state failed. status:-1, master host:192.168.6.143, port:9020
W1026 18:13:40.391201 19089 utils.cpp:101] fail to get master client from cache. host=192.168.6.143, port=9020, code=7
W1026 18:13:40.391471 19089 task_worker_pool.cpp:1060] finish report task failed. status:-1, master host:192.168.6.143port:9020
W1027 10:00:31.385262 2359 data_dir.cpp:128] open file filed, error: IO error: failed to open cluster id file /wyyt/software/doris/be/storage/cluster_id
W1027 10:00:31.385926 2359 data_dir.cpp:95] _init_cluster_id failed, error: IO error: failed to open cluster id file /wyyt/software/doris/be/storage/cluster_id
W1027 10:00:31.385958 2359 storage_engine.cpp:192] Store load failed, status=IO error: failed to open cluster id file /wyyt/software/doris/be/storage/cluster_id, path=/wyyt/software/doris/be/storage
W1027 10:00:31.386071 2353 storage_engine.cpp:148] _init_store_map failed, error: Internal error: init path failed, error=IO error: failed to open cluster id file /wyyt/software/doris/be/storage/cluster_id;
W1027 10:00:31.386106 2353 storage_engine.cpp:96] open engine failed, error: Internal error: init path failed, error=IO error: failed to open cluster id file /wyyt/software/doris/be/storage/cluster_id;
F1027 10:00:31.386186 2353 doris_main.cpp:189] fail to open StorageEngine, res=init path failed, error=IO error: failed to open cluster id file /wyyt/software/doris/be/storage/cluster_id;
找到原因之后，解决问题。我这里是打开文件失败，权限给755试试，然后重启BE节点。
如果重启失败，直接删除 be.pid ，再重启
2，日志权限用户变更了
启动服务的时候是什么用户就是什么用户
3，
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