大佬们，我是用sdb的大对象工具，上传文件夹下的大对象的时候，它一直报错，我弄了一天也没有解决方法，下面是它的报错日志：
2022-04-18-22.46.39.495947 Level:EVENT
PID:34282 TID:34282
Function:main Line:330
File:SequoiaDB/engine/pmd/sdblobtool.cpp
Message:
Start sdblobtool [Ver: 5.0, Release: 39282, Build: 2020-10-16-15.09.14]...
2022-04-18-22.46.39.496400 Level:EVENT
PID:34282 TID:34282
Function:main Line:351
File:SequoiaDB/engine/pmd/sdblobtool.cpp
Message:
options:{ "hostname": "localhost", "svcname": "13100", "usrname": "", "passwd": "", "operation": "import", "collection": "cs_notran.cl_files", "file": "/home/sdbadmin/lob/big/", "ignorefe": false, "dsthost": "localhost", "dstservice": "11810", "dstusrname": "", "dstpasswd": "", "PreferedInstance": "M", "ssl": false }
2022-04-18-22.46.39.503161 Level:EVENT
PID:34282 TID:34282
Function:_importLob Line:628
File:SequoiaDB/engine/mig/migLobTool.cpp
Message:
begin to import lob
2022-04-18-22.46.39.503244 Level:ERROR
PID:34282 TID:34282
Function:ossRead Line:1128
File:SequoiaDB/engine/oss/ossIO.cpp
Message:
Failed to read() : 5, Error: 21
2022-04-18-22.46.39.503253 Level:ERROR
PID:34282 TID:34282
Function:_openFile Line:1111
File:SequoiaDB/engine/mig/migLobTool.cpp
Message:
failed to read file:/home/sdbadmin/lob/big/, rc:-1
2022-04-18-22.46.39.503258 Level:ERROR
PID:34282 TID:34282
Function:_importLob Line:633
File:SequoiaDB/engine/mig/migLobTool.cpp
Message:
failed to open file:/home/sdbadmin/lob/big/
2022-04-18-22.46.39.503263 Level:ERROR
PID:34282 TID:34282
Function:exec Line:323
File:SequoiaDB/engine/mig/migLobTool.cpp
Message:
failed to complete operation, rc:-1
2022-04-18-22.46.39.503304 Level:ERROR
PID:34282 TID:34282
Function:main Line:361
File:SequoiaDB/engine/pmd/sdblobtool.cpp
Message:
failed to execute operation:-1
2022-04-18-22.46.39.503375 Level:EVENT
PID:34282 TID:34282
Function:main Line:372
File:SequoiaDB/engine/pmd/sdblobtool.cpp
Message:
sdblobtool quit. rc: -1, shell rc: 128.
