RE: Help, please! My OpenLDAP server stopped working!

["Howard Chu" <hyc@highlandsun.com>]

A hang probably indicates a locking conflict, but might also indicate a
memory shortage. You should read the Berkeley DB documentation, look into the
db_stat command, and examine the memory usage, cache effectiveness, all other
statistics of your database environment. If you copied the raw database files
directly from a running server directory to another directory, including the
__db.* environment files, then you may have duplicated the images of some
active locks, even though those locks aren't "live" in your new copy.
Obviously, this is not the correct way to duplicate a slapd database - slapd
must be shut down before you do anything to the raw database files.

"not really knowing what to do" - *always* read the documentation first.
Taking action blindly seldom resolves anything.

You should never use OpenLDAP (or any other software package, for that
matter) without reading both its docs *and* the docs for the database (and
any other) library that you're using. Learn about all the pieces that went
in, don't just slap 'em together, type "make" and forget about it.
Sleepycat's BDB documentation is very thorough. Information is all at your
fingertips, there's no excuse for ignorance.

  -- Howard Chu
  Chief Architect, Symas Corp.       Director, Highland Sun
  http://www.symas.com               http://highlandsun.com/hyc
  Symas: Premier OpenSource Development and Support

> -----Original Message-----
> From: owner-openldap-software@OpenLDAP.org
> [mailto:owner-openldap-software@OpenLDAP.org]On Behalf Of
> Norbert Kiesel
> Sent: Friday, March 07, 2003 4:25 AM
> To: openldap-software@OpenLDAP.org
> Subject: Help, please! My OpenLDAP server stopped working!
>
>
> Hi,
> I'm at a complete loss.  We are using OpenLDAP for about 6 month now
> with good results (currently 2.1.10 / bdb.4.1.25 on Solaris7).  Since
> 2 days the server got suddenly very slow (30 sec for 1 sublevel search
> with (objectClass=*).  Not really knowing waht to do, I compiled a new
> 2.1.14 using gcc-2.95, and copied the openldap-data/* files to the new
> server and started it.  The server starts fine, but on login hangs in
> login:
> do_bind: version=3 dn="cn=Manager,o=tbdnetworks.com" method=128
> conn=0 op=0 BIND dn="cn=Manager,o=tbdnetworks.com" method=128
> ==> bdb_bind: dn: cn=Manager,o=tbdnetworks.com
> bdb_dn2entry_rw("cn=manager,o=tbdnetworks.com")
> => bdb_dn2id_matched( "cn=manager,o=tbdnetworks.com" )
>
> I also tried to reindex the data using slapindex, but this also hangs
> (both under 2.1.10 and 2.1.14):
> slapindex startup: initiated.
> backend_startup: starting "o=tbdnetworks.com"
> bdb_db_open: o=tbdnetworks.com
> bdb_db_open: dbenv_open(/opt/OpenLDAP-2.1.14/var/openldap-data)
> indexing id=000000ea
> => bdb_tool_entry_reindex( 234 )
> entry_decode: "o=tbdnetworks.com"
> <= entry_decode(o=tbdnetworks.com)
> => bdb_tool_entry_reindex( 234, "o=tbdnetworks.com" )
> => bdb_dn2id_add( "o=tbdnetworks.com", 0x000000ea )
>
> Any ideas?  I'd really hate to switch back to i-Planet :-(
>
> --nk
>
>