Adding
# checkpointing - added 8/29/2017 checkpoint 128 10
To slapd.conf then running
sudo db_archive -d -h /var/lib/ldap/domain
Removed the old log files. /var now using under 1GB.
Thanks Howard!
Our LDAP server contains about 4000 entries. At what point would adding DB_CONFIG be needed for performance reasons? How would I even ascertain that there's performance issues?
Thanks,
Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit Physiology and Biophysics Weill Cornell Medicine E: doug@med.cornell.edu O: 212-746-6305 F: 212-746-8690
On Mon, Aug 28, 2017 at 10:19 AM, Douglas Duckworth <dod2014@med.cornell.edu
wrote:
Thanks for the reply, Howard.
Thanks for pointing me in the right direction. From what I have read there are two options.
- Copy /usr/share/openldap-servers/DB_CONFIG.example to /var/lib/domain
then rebuild the database. 2) Enable checkpointing in slapd.conf
Does enabling checkpointing in slapd.conf require rebuilding the database or can I simply restart slapd.conf? We are not using online configuration.
Best Doug
Thanks,
Douglas Duckworth, MSc, LFCS HPC System Administrator Scientific Computing Unit Physiology and Biophysics Weill Cornell Medicine E: doug@med.cornell.edu O: 212-746-6305 <(212)%20746-6305> F: 212-746-8690 <(212)%20746-8690>
On Fri, Aug 25, 2017 at 8:55 AM, Howard Chu hyc@symas.com wrote:
Douglas Duckworth wrote:
Hi
I am running openldap-servers-2.4.40-16.el6.x86_64 cluster on Centos
6.9. My
/var/lib/ldap directory contains many 10MB log files. /var partition
rather
small...
I've read they can be removed either by running "sudo db_archive -d -h /var/lib/ldap/domain" or by defining "DB_LOG_AUTOREMOVE" within the file "DB_CONFIG." That file does not presently exist whereas the db_archive command does not actually remove any of the log files.
If the db_archive command doesn't remove anything, that means it thinks all of the log files are still in active use.
Read the docs more carefully. https://urldefense.proofpoint.com/v2/url?u=http-3A__docs.ora cle.com_cd_E17076-5F05_html_programmer-5Freference_transap p-5Flogfile.html&d=DwICaQ&c=lb62iw4YL4RFalcE2hQUQealT9-RXrry qt9KZX2qu2s&r=2Fzhh_78OGspKQpl_e-CbhH6xUjnRkaqPFUS2wTJ2cw&m= WP95x8mwSiEHHqUWRqJv6WdpfcTtJDAUAKN756yEEDA&s=Kfi27b4v7vABZj PQYMkeo4xBqUyDGZeyB8pHAFin8xY&e=
Can I remove the old log files manually using rm?
Not if the above is true, you will corrupt the logs and the DB will fail to open on a subsequent restart.
If not should I create /var/lib/ldap/DB_CONFIG then restart slapd to make this removal
automatic?
Do you have any idea why db_archive does not work or produce any
helpful error
to stdout?
There's no error message because there's no error, everything is working as designed.
You need to do periodic checkpoints to allow log files to be closed, and then db_archive will be able to remove some of them.
-- -- Howard Chu CTO, Symas Corp. https://urldefense. proofpoint.com/v2/url?u=http-3A__www.symas.com&d=DwICaQ&c=l b62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=2Fzhh_78OGspKQp l_e-CbhH6xUjnRkaqPFUS2wTJ2cw&m=WP95x8mwSiEHHqUWRqJv6WdpfcTt JDAUAKN756yEEDA&s=IT7tNF72SCugdO8WpRd-oNsk4nPNpdjE2aUFL4R4X_M&e= Director, Highland Sun https://urldefense. proofpoint.com/v2/url?u=http-3A__highlandsun.com_hyc_&d=DwICaQ&c= lb62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=2Fzhh_78OGspKQ pl_e-CbhH6xUjnRkaqPFUS2wTJ2cw&m=WP95x8mwSiEHHqUWRqJv6WdpfcTt JDAUAKN756yEEDA&s=XqfYCnjG9ibPbeW05QZOlWdl9u0ZH-7IXkxx0gh238k&e= Chief Architect, OpenLDAP https://urldefense.proofpoint. com/v2/url?u=http-3A__www.openldap.org_project_&d=DwICaQ&c=l b62iw4YL4RFalcE2hQUQealT9-RXrryqt9KZX2qu2s&r=2Fzhh_78OGspKQp l_e-CbhH6xUjnRkaqPFUS2wTJ2cw&m=WP95x8mwSiEHHqUWRqJv6WdpfcTt JDAUAKN756yEEDA&s=-tGdeTJRpeaRbljBBUq49XgfNWzVElqiGEgv0LeqspU&e=