db.serverStatus()命名执行时报无权限问题的解决方法

1、问题描述

今天在执行db.serverStatus()命令时给出了“ "errmsg" : "not authorized on admin to execute command { serverStatus: 1.0 }",”的错误提示。

通过查询admin的权限已经是dbOwner的权限了，然后又陆续赋予了dbadmin等权限，问题仍旧存在。

最后找到了Mongodb的权限列表，赋予了root权限终于可以把问题给解决了，然后又测试了其他几个权限都不可以，这说明db.serverStatus是服务器级别的命令，需要mongodb的最高权限才能执行。

下面是问题处理的简单流程，分享给大家，以供参考。

2、错误内容

[root@ggnode2 ~]# mongo 10.130.170.112:27017/admin -u admin -p
MongoDB shell version: 3.2.8
Enter password:
connecting to: 10.130.170.112:27017/admin
MongoDB Enterprise >
MongoDB Enterprise > db.serverStatus()
{
  "ok" : 0,
  "errmsg" : "not authorized on admin to execute command { serverStatus: 1.0 }",
  "code" : 13
}

3、错误分析

从得到的错误内容可知，是由于admin没有执行db.serverStatus()命令的权限。

MongoDB Enterprise > use admin
switched to db admin
MongoDB Enterprise > show collections
system.users
system.version
MongoDB Enterprise > db.system.users.find()
{ "_id" : "admin.admin", "user" : "admin", "db" : "admin", "credentials" : { "SCRAM-SHA-1" : { "iterationCount" : 10000, "salt" : "BEN7SONYkewFMx3f67FNQw==", "storedKey" : "HjlvcjSpXpSKetcUbJyj350Xgjk=", "serverKey" : "k2WEf2cHGgg9n3tyEMJyuKaRt3U=" } }, "roles" : [{ "role" : "dbOwner", "db" : "admin" } ] }

根据查询结果可知，admin拥有dbOwner角色权限，而执行db.serverStatus()命令需要root角色权限。

4、问题处理：

经过查询表system.users表可知，需要为admin用户赋予root角色才能执行db.serverStatus()命令。

赋予角色权限的操作命令如下：

#授予角色权限
MongoDB Enterprise > db.grantRolesToUser( "admin" , [ { role: "root", db: "admin" } ])
MongoDB Enterprise >
#取消角色权限
MongoDB Enterprise > db.revokeRolesFromUser( "admin" , [ { role: "root", db: "admin" } ]
MongoDB Enterprise >

5、问题解决

赋予root角色权限之后，再执行db.serverStatus()命令就OK了，执行结果如下：

MongoDB Enterprise > db.serverStatus()
MongoDB shell version: 3.2.8
connecting to: 10.130.170.112:27017/admin
{
  "host" : "ggnode2",
  "advisoryHostFQDNs" : [ ],
  "version" : "3.2.8",
  "process" : "mongod",
  "pid" : NumberLong(23155),
  "uptime" : 1470624,
  "uptimeMillis" : NumberLong(1470624043),
  "uptimeEstimate" : 1415522,
  "localTime" : ISODate("2016-11-07T04:13:33.328Z"),
  "asserts" : {
    "regular" : 0,
    "warning" : 0,
    "msg" : 0,
    "user" : 62,
    "rollovers" : 0
  },
  "connections" : {
    "current" : 1,
    "available" : 818,
    "totalCreated" : NumberLong(6025)
  },
  "extra_info" : {
    "note" : "fields vary by platform",
    "heap_usage_bytes" : 60437840,
    "page_faults" : 28
  },
  "globalLock" : {
    "totalTime" : NumberLong("1470624234000"),
    "currentQueue" : {
      "total" : 0,
      "readers" : 0,
      "writers" : 0
    },
    "activeClients" : {
      "total" : 8,
      "readers" : 0,
      "writers" : 0
    }
  },
  "locks" : {
… …
    "storage" : {
      "freelist" : {
        "search" : {
          "bucketExhausted" : NumberLong(0),
          "requests" : NumberLong(0),
          "scanned" : NumberLong(0)
        }
      }
    },
    "ttl" : {
      "deletedDocuments" : NumberLong(0),
      "passes" : NumberLong(24508)
    }
  },
  "ok" : 1
}

总结