MYSQL check_error: 2013, returning SQL_DOWN

[yao guoxian]

  I updated NAS table,set type to 'livingston', it seemed the Freeradius server has recogenized the nas client.

  However, another mistake:' MYSQL check_error: 2013, returning SQL_DOWN 'appears,the following are the complete error message:

 

 

rad_recv: Access-Request packet from host 202.117.15.164:3735, id=17, length=45
        User-Name = "barny"
        User-Password = "betty"
  Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 3
  modcall[authorize]: module "preprocess" returns ok for request 3
  modcall[authorize]: module "chap" returns noop for request 3
  modcall[authorize]: module "mschap" returns noop for request 3
    rlm_realm: No '@' in User-Name = "barny", looking up realm NULL
    rlm_realm: No such realm "NULL"
  modcall[authorize]: module "suffix" returns noop for request 3
  rlm_eap: No EAP-Message, not doing EAP
  modcall[authorize]: module "eap" returns noop for request 3
radius_xlat:  'barny'
rlm_sql (sql): sql_set_user escaped user --> 'barny'
radius_xlat:  'SELECT id, UserName, Attribute, Value, op           FROM radcheck           WHERE Username = 'barny'           ORDER BY id'
rlm_sql (sql): Reserving sql socket id: 1
rlm_sql_mysql: query:  SELECT id, UserName, Attribute, Value, op           FROM radcheck           WHERE Username = 'barny'           ORDER BY id
rlm_sql_mysql: MYSQL check_error: 2013, returning SQL_DOWN
rlm_sql (sql): Attempting to connect rlm_sql_mysql #1
rlm_sql_mysql: Starting connect to MySQL server for #1
rlm_sql (sql): Connected new DB handle, #1
rlm_sql_mysql: query:  SELECT id, UserName, Attribute, Value, op           FROM radcheck           WHERE Username = 'barny'           ORDER BY id
rlm_sql_mysql: MYSQL check_error: 2013, returning SQL_DOWN
rlm_sql (sql): failed after re-connect
rlm_sql_getvpdata: database query error
rlm_sql (sql): SQL query error; rejecting user
rlm_sql (sql): Released sql socket id: 1
  modcall[authorize]: module "sql" returns fail for request 3
modcall: group authorize returns fail for request 3
Finished request 3
Going to the next request
--- Walking the entire request list ---
Waking up in 6 seconds...
--- Walking the entire request list ---
Cleaning up request 3 ID 17 with timestamp 4429e5be
Nothing to do.  Sleeping until we see a request.
 

Dose someone meet the same problem? Appreciate any suggestions. 

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