replPropertyMetaData corruption

[Matthieu Patou]

  Hello,

Today I discovered in production a corruption on the 
replPropertyMetaData of a windows 2008 server computer object.
Looking through the backup I can see that the corruption occured between 
the 30/07/2010 and 31/07/2010.
At this moment I was in vacation and nothing has been changed since a 
couple of time in the database (I mean things like upgradeprovision) and 
in the code as I am running  928fb861507e2abed86258582f27aad7d71b308e 
(12 april 2010).

The corruption is the following instead of having something like this in 
the field replpropertymetadata


replPropertyMetaData:: 
AQAAAAAAAAAZAAAAAAAAAAAAAAABAAAAY9AX/wIAAABQWcZNbfzUTZj
  ae9PrFacC8QwAAAAAAADxDAAAAAAAAAEAAgABAAAAY9AX/wIAAABQWcZNbfzUTZjae9PrFacC8QwA
  AAAAAADxDAAAAAAAAAIAAgAHAAAAWRs7AQMAAABQWcZNbfzUTZjae9PrFacCdZMAAAAAAAB1kwAAA
  AAAABkBAgAJAAAA5Rw7AQMAAABQWcZNbfzUTZjae9PrFacCDaEAAAAAAAANoQAAAAAAAAEACQABAA
..
  9AX/wIAAABQWcZNbfzUTZjae9PrFacC8QwAAAAAAADxDAAAAAAAAKsHCQABAAAAotrUAQMAAABQWc
  ZNbfzUTZjae9PrFacCLrgBAAAAAAAuuAEAAAAAAAMAAAABAAAAY9AX/wIAAABQWcZNbfzUTZjae9P
  rFacC8QwAAAAAAADxDAAAAAAAAA==

I have this:

replPropertyMetaData: NDR: struct replPropertyMetaDataBlob       version
              : 0x00000001 (1)       reserved                 : 
0x00000000 (0)
        ctr                      : union replPropertyMetaDataCtr(case 1)
  ctr1: struct replPropertyMetaDataCtr1           
count                    : 0x
  00000019 (25)           reserved                 : 0x00000000 
(0)           a
  rray: ARRAY(25)               array: struct replPropertyMetaData1
         attid                    : DRSUAPI_ATTRIBUTE_objectClass (0x0)
             version                  : 0x00000001 (1)                   
origin
  ating_change_time  : Tue Oct 28 19:35:47 2008 MSK                   
originati
  ng_invocation_id: 
4dc65950-fc6d-4dd4-98da-7bd3eb15a702                   orig
  inating_usn          : 0x0000000000000cf1 (3313)                   
local_usn
                 : 0x0000000000000cf1 (3313)               array: struct 
replPr
  opertyMetaData1                   attid                    : 
DRSUAPI_ATTRIBUT
  E_instanceType (0x20001)                   version                  : 
0x00000
  001 (1)                   originating_change_time  : Tue Oct 28 
19:35:47 2008
   MSK                   originating_invocation_id: 
4dc65950-fc6d-4dd4-98da-7bd
  3eb15a702                   originating_usn          : 
0x0000000000000cf1 (33
  13)                   local_usn                : 0x0000000000000cf1 
(3313)
              array: struct replPropertyMetaData1                   attid
                : DRSUAPI_ATTRIBUTE_whenCreated 
(0x20002)                   ver
  sion                  : 0x00000007 (7)                   
originating_change_t
  ime  : Thu Dec 17 22:45:29 2009 MSK                   
originating_invocation_
  id: 4dc65950-fc6d-4dd4-98da-7bd3eb15a702                   
originating_usn
         : 0x0000000000009375 (37749)                   local_usn
    : 0x0000000000009375 (37749)               array: struct 
replPropertyMetaDa
  ta1                   attid                    : 
DRSUAPI_ATTRIBUTE_ntSecurity
  Descriptor (0x20119)                   version                  : 
0x00000009
  (9)                   originating_change_time  : Thu Dec 17 22:52:05 
2009 MSK
                     originating_invocation_id: 
4dc65950-fc6d-4dd4-98da-7bd3eb1
  5a702                   originating_usn          : 0x000000000000a10d 
(41229)
                     local_usn                : 0x000000000000a10d (41229)
            array: struct replPropertyMetaData1                   attid
              : DRSUAPI_ATTRIBUTE_name (0x90001)                   version
               : 0x00000001 (1)                   
originating_change_time  : Tu
  e Oct 28 19:35:47 2008 MSK                   
originating_invocation_id: 4dc65
  950-fc6d-4dd4-98da-7bd3eb15a702                   
originating_usn          :
  0x0000000000000cf1 (3313)                   local_usn                : 
0x0000
  000000000cf1 (3313)               array: struct replPropertyMetaData1
             attid                    : 
DRSUAPI_ATTRIBUTE_userAccountControl (0
  x90008)                   version                  : 0x00000001 (1)
           originating_change_time  : Tue Oct 28 19:35:47 2008 MSK
        originating_invocation_id: 4dc65950-fc6d-4dd4-98da-7bd3eb15a702
             originating_usn          : 0x0000000000000cf1 (3313)
       local_usn                : 0x0000000000000cf1 
(3313)               array

When querying with ldbsearch ...

For the moment I solved the pb by copying the last good 
replpropertymetadata, I plan to remove the object and readd it but I 
can't as I don't have the deleted object container and before making an 
update I would like to be 100% sure that everything are ok.

-- 
Matthieu Patou
Samba Team        http://samba.org