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send_search_entry: conn xxx ber write failed

To: openldap-technical@openldap.org
Subject: send_search_entry: conn xxx ber write failed
From: Édnei Rodrigues <ednei.felipe.rodrigues@gmail.com>
Date: Thu, 10 Sep 2015 12:04:53 -0300
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Good morning. How are you doing ?

Guys, I have a application that do many connections to my ldap server and I am getting the error "send_search_entry: conn xxx ber write failed." and "(connection lost on write)".

This error occur only with that application, but The noise is large, because this one is very importante.

[root@ds1openldap2h log]# grep 132457 openldap.log
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 fd=675 ACCEPT from IP=172.23.131.51:41958 (IP=0.0.0.0:389)
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=0 SRCH base="cn=cvs_sicredi,ou=sistemas_cred_seg_consorcio,ou=sistemas_core_banking,ou=superintendencia_sistemas,ou=diretoria_exec_ti_operacoes,ou=confederacao_sicredi,cn=centralizadora,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=0 SRCH attr=cn
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=0 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=1 SRCH base="cn=as_modulo_ua,ou=campo_grande,cn=ua,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=1 SRCH attr=cn
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=1 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=2 SRCH base="cn=as_modulo_ua,ou=metropolis,cn=cooperativa,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=2 SRCH attr=cn
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=3 SRCH base="ou=sistemas_core_banking,ou=superintendencia_sistemas,ou=diretoria_exec_ti_operacoes,ou=confederacao_sicredi,cn=centralizadora,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=2 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=4 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(&(objectClass=SicrediGrupo)(cn=cvs_sicredi))"
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=4 SRCH attr=cn
Sep 10 09:46:28 ds1openldap2h slapd[16282]: send_search_entry: conn 132457 ber write failed.
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 op=3 SRCH attr=ou sicredicodigoua sicrediapelido sicredientidadepai sicredicodigocooperativa sicredicodigoagencia sicreditipo sicrediatributosadicionais
Sep 10 09:46:28 ds1openldap2h slapd[16282]: conn=132457 fd=675 closed (connection lost on write)
[root@ds1openldap2h log]# grep 135338 openldap.log
Sep 10 03:11:27 ds1openldap2h slapd[16282]: conn=96427 op=135338 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(&(objectClass=SicrediGrupo)(cn=as_modulo_ua))"
Sep 10 03:11:27 ds1openldap2h slapd[16282]: conn=96427 op=135338 SRCH attr=cn
Sep 10 03:11:27 ds1openldap2h slapd[16282]: conn=96427 op=135338 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=3 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=4 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(&(objectClass=SicrediGrupo)(cn=as_modulo_ua))"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=4 SRCH attr=cn
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=5 SRCH base="ou=diretoria_exec_ti_operacoes,ou=confederacao_sicredi,cn=centralizadora,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=5 SRCH attr=ou sicredicodigoua sicrediapelido sicredientidadepai sicredicodigocooperativa sicredicodigoagencia sicreditipo sicrediatributosadicionais
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=5 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=6 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(uniqueMember=cn=riscodecredito_banco_projetonovorisco,cn=email,cn=groups,dc=sicredi,dc=com,dc=br)"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=6 SRCH attr=1.1 cn
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=6 SEARCH RESULT tag=101 err=0 nentries=0 text=
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=7 SRCH base="cn=as_modulo_ua,ou=cooperucs,cn=cooperativa,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=7 SRCH attr=cn
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=7 SEARCH RESULT tag=101 err=0 nentries=1 text=
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=8 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(&(objectClass=SicrediGrupo)(cn=as_modulo_ua))"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=8 SRCH attr=cn
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=9 SRCH base="ou=banco,cn=centralizadora,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=9 SRCH attr=ou sicredicodigoua sicrediapelido sicredientidadepai sicredicodigocooperativa sicredicodigoagencia sicreditipo sicrediatributosadicionais
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=10 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(uniqueMember=cn=vpn_homeoffice,cn=internet,cn=groups,dc=sicredi,dc=com,dc=br)"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=10 SRCH attr=1.1 cn
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=11 SRCH base="cn=groups,dc=sicredi,dc=com,dc=br" scope=2 deref=0 filter="(&(objectClass=SicrediGrupo)(cn=as_modulo_ua))"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=11 SRCH attr=cn
Sep 10 09:47:58 ds1openldap2h slapd[16282]: connection_input: conn=135338 deferring operation: too many executing
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=10 SEARCH RESULT tag=101 err=0 nentries=0 text=
Sep 10 09:47:58 ds1openldap2h slapd[16282]: connection_input: conn=135338 deferring operation: pending operations
Sep 10 09:47:58 ds1openldap2h slapd[16282]: connection_input: conn=135338 deferring operation: too many executing
Sep 10 09:47:58 ds1openldap2h slapd[16282]: send_search_entry: conn 135338 ber write failed.
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=12 SRCH base="ou=confederacao_sicredi,cn=centralizadora,cn=entities,dc=sicredi,dc=com,dc=br" scope=0 deref=0 filter="(objectClass=*)"
Sep 10 09:47:58 ds1openldap2h slapd[16282]: conn=135338 op=12 SRCH attr=ou sicredicodigoua sicrediapelido sicredientidadepai sicredicodigocooperativa sicredicodigoagencia sicreditipo sicrediatributosadicionais

So, Do this message mean a problem with my LDAP Server? Will I need deploy a other LDAP server and balance these connections ?

Thanks for the help!

Follow-Ups:
- Re: send_search_entry: conn xxx ber write failed
  - From: Quanah Gibson-Mount <quanah@zimbra.com>

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