Low-level discovery problem
When i enable the low-level discovery,the zabbix_server.log will take wrong message,
13281:20150513:144415.792 [Z3005] query failed: [1062] Duplicate entry '10216-vfs.fs.size[C:,used]' for key 'items_1' [insert into items (itemid,name,key_,hostid,type,value_type,data_type ,delay,delay_flex,history,trends,status,trapper_ho sts,units,multiplier,delta,formula,logtimefmt,valu emapid,params,ipmi_sensor,snmp_community,snmp_oid, port,snmpv3_securityname,snmpv3_securitylevel,snmp v3_authprotocol,snmpv3_authpassphrase,snmpv3_privp rotocol,snmpv3_privpassphrase,authtype,username,pa ssword,publickey,privatekey,description,interfacei d,flags,snmpv3_contextname) values (112510,'Used disk space on $1','vfs.fs.size[C:,used]',10216,0,3,0,3600,'',90,365,0,'','B',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,''),(112511,'Used disk space on $1','vfs.fs.size[D:,used]',10216,0,3,0,3600,'',90,365,0,'','B',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,'');
]
13281:20150513:144415.822 [Z3005] query failed: [1062] Duplicate entry '10216-vfs.fs.size[C:,pused]' for key 'items_1' [insert into items (itemid,name,key_,hostid,type,value_type,data_type ,delay,delay_flex,history,trends,status,trapper_ho sts,units,multiplier,delta,formula,logtimefmt,valu emapid,params,ipmi_sensor,snmp_community,snmp_oid, port,snmpv3_securityname,snmpv3_securitylevel,snmp v3_authprotocol,snmpv3_authpassphrase,snmpv3_privp rotocol,snmpv3_privpassphrase,authtype,username,pa ssword,publickey,privatekey,description,interfacei d,flags,snmpv3_contextname) values (112510,'Used disk space on $1 (percentage)','vfs.fs.size[C:,pused]',10216,0,0,0,3600,'',90,365,0,'','%',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,''),(112511,'Used disk space on $1 (percentage)','vfs.fs.size[D:,pused]',10216,0,0,0,3600,'',90,365,0,'','%',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,'');
]
13281:20150513:144415.836 [Z3005] query failed: [1452] Cannot add or update a child row: a foreign key constraint fails (`zabbix`.`functions`, CONSTRAINT `c_functions_1` FOREIGN KEY (`itemid`) REFERENCES `items` (`itemid`) ON DELETE CASCADE) [insert into functions (functionid,itemid,triggerid,function,parameter) values (2798380,112510,1402938,'last','0'),(2798381,11251 0,1402938,'last','0'),(2798382,112511,1402939,'las t','0'),(2798383,112511,1402939,'last','0');
]
13281:20150513:144415.852 [Z3005] query failed: [1452] Cannot add or update a child row: a foreign key constraint fails (`zabbix`.`graphs_items`, CONSTRAINT `c_graphs_items_2` FOREIGN KEY (`itemid`) REFERENCES `items` (`itemid`) ON DELETE CASCADE) [insert into graphs_items (gitemid,graphid,itemid,drawtype,sortorder,color,y axisside,calc_fnc,type) values (26383,13317,112510,0,0,'CC00CC',0,2,0),(26384,133 17,112510,0,1,'0000BB',0,2,0),(26385,13318,112511, 0,0,'CC00CC',0,2,0),(26386,13318,112511,0,1,'0000B B',0,2,0);
13281:20150513:144415.792 [Z3005] query failed: [1062] Duplicate entry '10216-vfs.fs.size[C:,used]' for key 'items_1' [insert into items (itemid,name,key_,hostid,type,value_type,data_type ,delay,delay_flex,history,trends,status,trapper_ho sts,units,multiplier,delta,formula,logtimefmt,valu emapid,params,ipmi_sensor,snmp_community,snmp_oid, port,snmpv3_securityname,snmpv3_securitylevel,snmp v3_authprotocol,snmpv3_authpassphrase,snmpv3_privp rotocol,snmpv3_privpassphrase,authtype,username,pa ssword,publickey,privatekey,description,interfacei d,flags,snmpv3_contextname) values (112510,'Used disk space on $1','vfs.fs.size[C:,used]',10216,0,3,0,3600,'',90,365,0,'','B',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,''),(112511,'Used disk space on $1','vfs.fs.size[D:,used]',10216,0,3,0,3600,'',90,365,0,'','B',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,'');
]
13281:20150513:144415.822 [Z3005] query failed: [1062] Duplicate entry '10216-vfs.fs.size[C:,pused]' for key 'items_1' [insert into items (itemid,name,key_,hostid,type,value_type,data_type ,delay,delay_flex,history,trends,status,trapper_ho sts,units,multiplier,delta,formula,logtimefmt,valu emapid,params,ipmi_sensor,snmp_community,snmp_oid, port,snmpv3_securityname,snmpv3_securitylevel,snmp v3_authprotocol,snmpv3_authpassphrase,snmpv3_privp rotocol,snmpv3_privpassphrase,authtype,username,pa ssword,publickey,privatekey,description,interfacei d,flags,snmpv3_contextname) values (112510,'Used disk space on $1 (percentage)','vfs.fs.size[C:,pused]',10216,0,0,0,3600,'',90,365,0,'','%',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,''),(112511,'Used disk space on $1 (percentage)','vfs.fs.size[D:,pused]',10216,0,0,0,3600,'',90,365,0,'','%',0,0,'1','',n ull,'','','','','','',0,0,'',0,'',0,'','','','','' ,30648,4,'');
]
13281:20150513:144415.836 [Z3005] query failed: [1452] Cannot add or update a child row: a foreign key constraint fails (`zabbix`.`functions`, CONSTRAINT `c_functions_1` FOREIGN KEY (`itemid`) REFERENCES `items` (`itemid`) ON DELETE CASCADE) [insert into functions (functionid,itemid,triggerid,function,parameter) values (2798380,112510,1402938,'last','0'),(2798381,11251 0,1402938,'last','0'),(2798382,112511,1402939,'las t','0'),(2798383,112511,1402939,'last','0');
]
13281:20150513:144415.852 [Z3005] query failed: [1452] Cannot add or update a child row: a foreign key constraint fails (`zabbix`.`graphs_items`, CONSTRAINT `c_graphs_items_2` FOREIGN KEY (`itemid`) REFERENCES `items` (`itemid`) ON DELETE CASCADE) [insert into graphs_items (gitemid,graphid,itemid,drawtype,sortorder,color,y axisside,calc_fnc,type) values (26383,13317,112510,0,0,'CC00CC',0,2,0),(26384,133 17,112510,0,1,'0000BB',0,2,0),(26385,13318,112511, 0,0,'CC00CC',0,2,0),(26386,13318,112511,0,1,'0000B B',0,2,0);