Thank you, I subscribed to this issue. It looks like the same problem.



Am 20.10.2016 um 12:23 schrieb Vincent Petry:
Possibly related ? https://github.com/owncloud/core/issues/26065


On 20.10.2016 12:14, Jan Martens wrote:
Hi,

we use ownCloud 9.1.1 with the ldap_user APP and have a LDAP server
with about 11,000 user entries. We investigated that our ownCloud test
server (only two syncclients connected) made about 60,000 to 350,000
queries per hour to the LDAP server. The productive Server makes even
more for example because for every sync client there is one bind
operation every five minutes.

For example from 2016-10-13 15:00:00 to 2016-10-13 16:00:00 the only
the ownCloudUser 17706 binds and 60572 queries.

It looks like ownCloud makes every ten minutes for every user multiple
queries to the LDAP even if the user never used the ownCloud. The
queries look like the following:

base="uid=usernameXY,ou=people,dc=company,dc=de" scope=0 deref=0
filter="(ownCloudQuota=*)"
base="uid=usernameXY,ou=people,dc=company,dc=de" scope=0 deref=0
filter="(objectClass=*)"
base="ou=People,dc=company,dc=de" scope=2 deref=0
filter="(&(ownCloudQuota=*)(uid=usernameXY))"
base="uid=usernameXY,ou=people,dc=company,dc=de" scope=0 deref=0
filter="(objectClass=*)"
base="uid=usernameXY,ou=people,dc=company,dc=de" scope=0 deref=0
filter="(objectClass=*)"
base="uid=usernameXY,ou=people,dc=company,dc=de" scope=0 deref=0
filter="(objectClass=*)"
base="ou=ownCloud Groups,dc=company,dc=de" scope=2 deref=0
filter="(&(cn=*)(memberUid=usernameXY))"

Of cause we are using APCu as memcache. By increasing the TTL from 600
seconds to 3600 we have alredy reduced the number of queries by about
10 percent.

My question is, if this is normal and nessesary behavior of owncloud.
Or can we adjust the intervall? It would be okay if ownCloud would
synchronize the users three times per day. The rest of the time it
would be enougth to handle the user authentification.

Or could a misconfiguration cause the amount of queries?

Best regards
Jan


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