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FW: daemon: select timeout - yielding

This bit in daemon.c about polling (select with a timeval of 0 sec/ 0 usec)
when there
are active threads doesn't make a whole lot of sense to me. The behavior was
in the
original code and I preserved it when I wrote the idletimeout patch. What is
it
intended to accomplish?

  -- 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 Alexander
Lunyov
Sent: Friday, June 06, 2003 8:44 AM
To: openldap-software@OpenLDAP.org
Subject: daemon: select timeout - yielding


Hello openldap-software,

  FreeBSD 4.8R
  Cyrus-IMAPD-2.1.13 (from ports)
  Cyrus-SASL-2.1.13 (from ports with ldapdb.c patch)
  auxprop plugin ldapdb.c patch from Edward Rudd (it was 05.06.2003)

  Can somebody explain to me why slapd when i'm trying to authenticate
  with DIGEST-MD5 (Cyrus-SASL-2.1.13) hangs? For example, after
  command "cyradm --user cyradm localhost" and after i enter password,
  or after command "ldapsearch -U someuser" BUT BEFORE i enter the
  password (in ldapsearch case it even not asking for password),
  in logs i see that slapd starts authentication and then -
  "select timeout" and logs are growing very-very fast.

  ldap part of IMAP config:

sasl_pwcheck_method: auxprop
sasl_ldapdb_uri: ldap://127.0.0.1
sasl_ldapdb_id:  admin
sasl_ldapdb_pw: password
sasl_ldapdb_mech: DIGEST-MD5

  Auth via sasldb2 is working, everything is fine.

  Log:

Jun  6 19:22:24 icarus slapd[87577]: daemon: activity on 1 descriptors
Jun  6 19:22:24 icarus slapd[87577]: daemon: new connection on 9
Jun  6 19:22:24 icarus slapd[87577]: conn=1 fd=9 ACCEPT from
IP=127.0.0.1:2587 (IP=0.0.0.0:389)
Jun  6 19:22:24 icarus slapd[87577]: daemon: added 9r
Jun  6 19:22:24 icarus slapd[87577]: daemon: activity on:
Jun  6 19:22:24 icarus slapd[87577]:
Jun  6 19:22:24 icarus slapd[87577]: daemon: select: listen=8
active_threads=0 tvp=NULL
Jun  6 19:22:24 icarus slapd[87577]: daemon: activity on 1 descriptors
Jun  6 19:22:24 icarus slapd[87577]: daemon: activity on:
Jun  6 19:22:24 icarus slapd[87577]:  9r
Jun  6 19:22:24 icarus slapd[87577]:
Jun  6 19:22:24 icarus slapd[87577]: daemon: read activity on 9
Jun  6 19:22:24 icarus slapd[87577]: connection_get(9)
Jun  6 19:22:24 icarus slapd[87577]: connection_get(9): got connid=1
Jun  6 19:22:24 icarus slapd[87577]: connection_read(9): checking for input
on id=1
Jun  6 19:22:24 icarus slapd[87577]: ber_get_next on fd 9 failed errno=35
(Resource temporarily unavailable)
Jun  6 19:22:24 icarus slapd[87577]: do_bind
Jun  6 19:22:24 icarus slapd[87577]: >>> dnPrettyNormal: <>
Jun  6 19:22:24 icarus slapd[87577]: <<< dnPrettyNormal: <>, <>
Jun  6 19:22:24 icarus slapd[87577]: do_sasl_bind: dn () mech DIGEST-MD5
Jun  6 19:22:24 icarus slapd[87577]: conn=1 op=0 BIND dn="" method=163
Jun  6 19:22:24 icarus slapd[87577]: ==> sasl_bind: dn="" mech=DIGEST-MD5
datalen=0
Jun  6 19:22:24 icarus slapd[87577]: SASL [conn=1] Debug: DIGEST-MD5 server
step 1
Jun  6 19:22:24 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle
Jun  6 19:22:24 icarus slapd[87577]: daemon: select timeout - yielding
Jun  6 19:22:24 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle
.
.
.
Jun  6 19:25:55 icarus slapd[87577]: daemon: select timeout - yielding
Jun  6 19:25:55 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle
Jun  6 19:25:55 icarus slapd[87577]: daemon: select timeout - yielding
Jun  6 19:25:55 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle
Jun  6 19:25:55 icarus slapd[87577]: daemon: select timeout - yielding
Jun  6 19:25:55 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle
Jun  6 19:25:55 icarus slapd[87577]: daemon: select timeout - yielding
Jun  6 19:25:55 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle
Jun  6 19:25:55 icarus slapd[87577]: daemon: select timeout - yielding
Jun  6 19:25:55 icarus slapd[87577]: daemon: select: listen=8
active_threads=1 tvp=idle



p.s.: or maybe i should ask it in cyrus-sasl@ ?

--
Best regards,
Alexander                          mailto:lan_mailing@startatom.ru