Debug output question

["Kick, Claus" <claus.kick@siemens.com>]

Hello everyone,
 
Changing settings for nscd did help a bit, although the system is very
slow for a minute or so when especially the group cache is being
refreshed (once every hour at the moment).

Having slapd run at debug level -1 leads to the following error
sometimes, for different user queries:
 
ber_flush: 279 bytes to sd 14
  0000:  30 82 01 13 02 02 16 8d  64 82 01 0b 04 2c 75 69
0.......d....,ui
  0010:  64 3d 74 72 6f 65 64 75  6c 31 31 2c 6f 75 3d 50
d=troedul11,ou=P
  0020:  65 6f 70 6c 65 2c 6f 3d  73 69 65 6d 65 6e 73 6d
eople,o=siemensm
  0030:  65 64 69 63 61 6c 2e 63  6f 6d 30 81 da 30 1a 04
edical.com0..0..
  0040:  0a 6c 6f 67 69 6e 53 68  65 6c 6c 31 0c 04 0a 2f
.loginShell1.../
  0050:  62 69 6e 2f 66 61 6c 73  65 30 13 04 09 75 69 64
bin/false0...uid
  0060:  4e 75 6d 62 65 72 31 06  04 04 31 34 31 37 30 12
Number1...14170.
  0070:  04 09 67 69 64 4e 75 6d  62 65 72 31 05 04 03 35
..gidNumber1...5
  0080:  30 34 30 12 04 03 75 69  64 31 0b 04 09 74 72 6f
040...uid1...tro
  0090:  65 64 75 6c 31 31 30 18  04 05 67 65 63 6f 73 31
edul110...gecos1
  00a0:  0f 04 0d 55 6c 66 20 54  72 6f 65 64 73 73 6f 6e   ...Ulf
Troedsson
  00b0:  30 15 04 02 63 6e 31 0f  04 0d 55 6c 66 20 54 72
0...cn1...Ulf Tr
  00c0:  6f 65 64 73 73 6f 6e 30  22 04 0d 68 6f 6d 65 44
oedsson0"..homeD
  00d0:  69 72 65 63 74 6f 72 79  31 11 04 0f 2f 68 6f 6d
irectory1.../hom
  00e0:  65 2f 74 72 6f 65 64 75  6c 31 31 30 2a 04 0b 64
e/troedul110*..d
  00f0:  65 73 63 72 69 70 74 69  6f 6e 31 1b 04 19 72 67
escription1...rg
  0100:  5f 6e 6f 74 69 66 69 63  61 74 69 6f 6e 20 75 73
_notification us
  0110:  65 72 20 6f 6e 6c 79                               er only
ldap_write: want=279 error=Resource temporarily unavailable
ber_flush failed errno=11 reason="Resource temporarily unavailable"
daemon: activity on 1 descriptor
daemon: waked

What does this error mean? Is is even an error?

Confused and asking for help,

Claus