Re: dbverify

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



fedora-directory-users-request@xxxxxxxxxx wrote:

Date: Fri, 31 Oct 2008 13:41:46 -0400
From: Dan Lannom<dlannom@xxxxxxxxxxxxx>

I've done exhaustive verification of equality and presence indexes for
my directory to verify that ldap is working properly so I'm going to
treat dbverify as buggy for now.

dbverify is certainly not buggy. Most likely you're running on a Little-Endian machine, and FDS is not canonicalizing its keys into Big-Endian format. (Instead it must be using a custom key comparison function internally.) Since dbverify only uses the default key comparison function, it will see the keys as being out of order (even though they're in correct order according to FDS's custom function).

I can't find any pattern in my data to explain what the bug is though.
22 of the 45 indexes are affected
syntaxes are oid,directorystring,ia5string,integer and telephonenumber
index types are either e,ep,eps or aeps

I'll fill out a bug report later tonight,

Dan Lannom

I wrote in my earlier email:
I plan to migrate to fds from SunOne 5.2 and so I want to validate the
system.
I'm currently running version 1.1.3-2 of the directory on RHEL 5.2.

When I do searches against the server everything seems to work fine, but
When I run /usr/lib/dirsrv/slapd-{{hostname}}/dbverify, with the
server off, it fails with
errors like:
[28/Oct/2008:10:52:16 -0400] - libdb: Page 4: out-of-order key at entry 2
[28/Oct/2008:10:52:16 -0400] - libdb: Page 4: out-of-order key at entry 8
[28/Oct/2008:10:52:16 -0400] - libdb: Page 4: out-of-order key at
entry 11
[28/Oct/2008:10:52:16 -0400] - libdb: Page 4: out-of-order key at
entry 14
...
[28/Oct/2008:10:52:16 -0400] - libdb:
/var/lib/dirsrv/slapd-hume/db/{{SUFFIX}}/{{attribute}}.db4:
DB_VERIFY_BAD: Database verification failed
[28/Oct/2008:10:52:16 -0400] DB verify - verify failed(-30975):
/var/lib/dirsrv/slapd-{{hostname}}/db/userdata/{{attribute}}.db4

reindexing does not change anything and I find the same errors for
both i386 and x86_64 and the errors are almost identical for the
master and the slaves.

Since I can find any evidence of the indexes identified as corrupted
not working I wonder why dbverify is generating these errors.

Thanks for any help,

Dan Lannom
UM-Dearborn

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/

--
Fedora-directory-users mailing list
Fedora-directory-users@xxxxxxxxxx
https://www.redhat.com/mailman/listinfo/fedora-directory-users

[Index of Archives]     [Fedora Directory Users]     [Fedora Directory Devel]     [Fedora Announce]     [Fedora Legacy Announce]     [Kernel]     [Fedora Legacy]     [Share Photos]     [Fedora Desktop]     [PAM]     [Red Hat Watch]     [Red Hat Development]     [Big List of Linux Books]     [Gimp]     [Yosemite News]

  Powered by Linux