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This is metze's LDAP rebind sleep patch:

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When smb.conf tells us to write to a read-only LDAP replica and we are
redirected by the LDAP server, the replication might take some seconds,
especially over slow links. This patch delays the next read after a rebind for
'ldap rebind sleep' milliseconds.

Metze, thanks for your patience.

Volker
(This used to be commit 63ffa770b67d700f138d19b4982da152f57674fc)
This commit is contained in:
Volker Lendecke 2003-12-25 22:42:15 +00:00
parent 38d0c9698f
commit 3a1b189a9f
3 changed files with 34 additions and 0 deletions
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2
source3/include/smbldap.h
View File

@ -138,6 +138,8 @@ struct smbldap_state {
time_t last_use;
smb_event_id_t event_id;
struct timeval last_rebind;
};
#endif /* HAVE_LDAP */

28
source3/lib/smbldap.c
View File

@ -661,6 +661,9 @@ static int rebindproc_with_state (LDAP * ld, char **whop, char **credp,
}
*methodp = LDAP_AUTH_SIMPLE;
}
gettimeofday(&(ldap_state->last_rebind),NULL);
return 0;
}
#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
@ -687,6 +690,8 @@ static int rebindproc_connect_with_state (LDAP *ldap_struct,
rc = ldap_simple_bind_s(ldap_struct, ldap_state->bind_dn, ldap_state->bind_secret);
gettimeofday(&(ldap_state->last_rebind),NULL);
return rc;
}
#endif /*defined(LDAP_API_FEATURE_X_OPENLDAP) && (LDAP_API_VERSION > 2000)*/
@ -909,6 +914,29 @@ int smbldap_search(struct smbldap_state *ldap_state,
SMB_ASSERT(ldap_state);
if (ldap_state->last_rebind.tv_sec > 0) {
struct timeval tval;
int tdiff = 0;
int sleep_time = 0;
ZERO_STRUCT(tval);
gettimeofday(&tval,NULL);
tdiff = 1000000 *(tval.tv_sec - ldap_state->last_rebind.tv_sec) +
(tval.tv_usec - ldap_state->last_rebind.tv_usec);
sleep_time = ((1000*lp_ldap_rebind_sleep())-tdiff)/1000;
if (sleep_time > 0) {
/* we wait for the LDAP replication */
DEBUG(5,("smbldap_search: waiting %d milliseconds for LDAP replication.\n",sleep_time));
msleep(sleep_time);
DEBUG(5,("smbldap_search: go on!\n"));
ZERO_STRUCT(ldap_state->last_rebind);
}
}
if (push_utf8_allocate(&utf8_filter, filter) == (size_t)-1) {
return LDAP_NO_MEMORY;
}

4
source3/param/loadparm.c
View File

@ -233,6 +233,7 @@ typedef struct
char *szLdapAdminDn;
char *szAclCompat;
int ldap_passwd_sync;
int ldap_rebind_sleep;
BOOL ldap_delete_dn;
BOOL bMsAddPrinterWizard;
BOOL bDNSproxy;
@ -1077,6 +1078,7 @@ static struct parm_struct parm_table[] = {
{"ldap ssl", P_ENUM, P_GLOBAL, &Globals.ldap_ssl, NULL, enum_ldap_ssl, FLAG_ADVANCED},
{"ldap passwd sync", P_ENUM, P_GLOBAL, &Globals.ldap_passwd_sync, NULL, enum_ldap_passwd_sync, FLAG_ADVANCED},
{"ldap delete dn", P_BOOL, P_GLOBAL, &Globals.ldap_delete_dn, NULL, NULL, FLAG_ADVANCED},
{"ldap rebind sleep", P_INTEGER, P_GLOBAL, &Globals.ldap_rebind_sleep, NULL, NULL, FLAG_ADVANCED},
{N_("Miscellaneous Options"), P_SEP, P_SEPARATOR},
{"add share command", P_STRING, P_GLOBAL, &Globals.szAddShareCommand, NULL, NULL, FLAG_ADVANCED},
@ -1469,6 +1471,7 @@ static void init_globals(void)
Globals.ldap_ssl = LDAP_SSL_ON;
Globals.ldap_passwd_sync = LDAP_PASSWD_SYNC_OFF;
Globals.ldap_delete_dn = False;
Globals.ldap_rebind_sleep = 1000; /* wait 1 sec for replication */
/* these parameters are set to defaults that are more appropriate
for the increasing samba install base:
@ -1698,6 +1701,7 @@ FN_GLOBAL_STRING(lp_ldap_admin_dn, &Globals.szLdapAdminDn)
FN_GLOBAL_INTEGER(lp_ldap_ssl, &Globals.ldap_ssl)
FN_GLOBAL_INTEGER(lp_ldap_passwd_sync, &Globals.ldap_passwd_sync)
FN_GLOBAL_BOOL(lp_ldap_delete_dn, &Globals.ldap_delete_dn)
FN_GLOBAL_INTEGER(lp_ldap_rebind_sleep, &Globals.ldap_rebind_sleep)
FN_GLOBAL_STRING(lp_add_share_cmd, &Globals.szAddShareCommand)
FN_GLOBAL_STRING(lp_change_share_cmd, &Globals.szChangeShareCommand)
FN_GLOBAL_STRING(lp_delete_share_cmd, &Globals.szDeleteShareCommand)