我想将某个刚放入的大对象拿回来，但不管哪个路径都报file exist，加了true就说IO exception，是哪里出了问题么？
> db.lobtest.lob.getLob('54d42c6e9acb185152000000','/usr/local/sequoiadb')
(nofile):0 uncaught exception: -5
File Exist
Takes 0.103s.
> db.lobtest.lob.getLob('54d42c6e9acb185152000000','/usr/local/sequoiadb/database')
(nofile):0 uncaught exception: -5
File Exist
Takes 0.90s.
> db.lobtest.lob.getLob('54d42c6e9acb185152000000','/usr/local/sequoiadb/database',true)
(nofile):0 uncaught exception: -1
IO Exception
Takes 0.109s.
> db.lobtest.lob.listLobs()
{
"Size": 38067066,
"Oid": {
"$oid": "54d42ba9ac79ae3044000000"
},
"CreateTime": {
"$timestamp": "2015-02-06-10.49.14.499000"
},
"Available": true
}
{
"Size": 116048661,
"Oid": {
"$oid": "54d42c6e9acb185152000000"
},
"CreateTime": {
"$timestamp": "2015-02-06-10.52.31.101000"
},
"Available": true
}
