openldap-technical August 2015

openldap-technical@openldap.org

55 participants
62 discussions

question on write transaction
by Shu, Xinxin 04 Aug '15

04 Aug '15

Hi list, recently I wrote app on LMDB, found that for every write , lmdb lock a global lock when transaction is created , and release this lock in mdb_txn_commit, on Ubuntu, this lock is implemented by pthread_mutext_t. in my app, I create write transaction in a thread, then commit this write transaction in another thread, since lmdb use pthread_mutex_unlock to release this lock, according to manual , attempting to unlock the mutex if it was not locked by the calling thread results in undefined behavior, then my app cannot create write transaction . So does this issue known to community or is there any way to work around? Cheers, xinxin

2 2

I want to use memberof overlay but I do not have a clue on how to even look at it.
by Eliezer Croitoru 01 Aug '15

01 Aug '15

I want to use memberof overlay but I do not have a clue on how to even look at it. I have tried to use this: http://www.schenkels.nl/2013/03/how-to-setup-openldap-with-memberof-overlay… which kind of worked and it has added something to my database. Now I have tried to run some search but either I am doing something wrong or the memberof is not loaded. So first, how do check that it is loaded? I was thinking about : ldapsearch -x -H ldap:/// -b cn=module but again I am unsure since it won't give results. I am trying to use memberof for squid to match a group membership. Any hints? directions to understand? I understand the basics of LDAP but this is something above basic LDAP. Thanks, Eliezer

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openldap-technical August 2015