AFAIK most request never hit LDAP servers. In production there is always a cache on the client side -- nscd might have issue, but that's another story.
Regards, Benjamin On 2017-04-11 15:32, Grigory Shamov wrote: > On a larger cluster, deploying NIS, LDAP etc. might require some > thought, because you will be testing performance of your LDAP server’s > in worts case of a few hundred simultaneous requests, no? Thats why many > of specialized cluster tools like ROCKS, Perceus etc. would rather > synchronize files than doing LDAP. > > -- > Grigory Shamov > > > > > From: Marcin Stolarek <stolarek.mar...@gmail.com > <mailto:stolarek.mar...@gmail.com>> > Reply-To: slurm-dev <slurm-dev@schedmd.com <mailto:slurm-dev@schedmd.com>> > Date: Tuesday, April 11, 2017 at 12:48 AM > To: slurm-dev <slurm-dev@schedmd.com <mailto:slurm-dev@schedmd.com>> > Subject: [slurm-dev] Re: LDAP required? > > Re: [slurm-dev] Re: LDAP required? > but... is LDAP such a big issue? > > 2017-04-10 22:03 GMT+02:00 Jeff White <jeff.wh...@wsu.edu > <mailto:jeff.wh...@wsu.edu>>: > > Using Salt/Ansible/Chef/Puppet/Engine is another way to get it > done. Define your users in states/playbooks/whatever and don't > bother with painful LDAP or ancient NIS solutions. > > -- > Jeff White > HPC Systems Engineer > Information Technology Services - WSU > > On 04/10/2017 09:39 AM, Alexey Safonov wrote: >> If you don't want to share passwd and setup LDAP which is complex >> task you can setup NIS. It will take 30 minutes of your time >> >> Alex >> >> 11 апр. 2017 г. 0:35 пользователь "Raymond Wan" >> <rwan.w...@gmail.com <mailto:rwan.w...@gmail.com>> написал: >> >> >> Dear all, >> >> I'm trying to set up a small cluster of computers (i.e., less >> than 5 >> nodes). I don't expect the number of nodes to ever get larger >> than >> this. >> >> For SLURM to work, I understand from web pages such as >> https://slurm.schedmd.com/accounting.html >> >> <https://urldefense.proofpoint.com/v2/url?u=https-3A__slurm.schedmd.com_accounting.html&d=DwMFaQ&c=C3yme8gMkxg_ihJNXS06ZyWk4EJm8LdrrvxQb-Je7sw&r=DhM5WMgdrH-xWhI5BzkRTzoTvz8C-BRZ05t9kW9SXZk&m=pHFr5OO6Rs6OVpGK-ABDCawrftYPAsXU-3jcnPxli7s&s=pKOva3EaAqpu1SQdiMYOdDVs5YShjTHnK4NZN4TiA6k&e=> >> that UIDs need to be shared >> across nodes. Based on this web page, it seems sharing >> /etc/passwd >> between nodes appears sufficient. The word LDAP is mentioned >> at the >> end of the paragraph as an alternative. >> >> I guess what I would like to know is whether it is acceptable to >> completely avoid LDAP and use the approach mentioned there? The >> reason I'm asking is that I seem to be having a very nasty time >> setting up LDAP. It doesn't seem as "easy" as I thought it >> would be >> [perhaps it was my fault for thinking it would be easy...]. >> >> If I can set up a small cluster without LDAP, that would be great. >> But beyond this web page, I am wondering if there are >> suggestions for >> "best practices". For example, in practice, do most >> administrators >> use LDAP? If so and if it'll pay off in the end, then I can >> consider >> continuing with setting it up... >> >> Thanks a lot! >> >> Ray >> > > -- FSU Jena | JULIELab.de/Staff/Benjamin+Redling.html ☎ +49 3641 9 44323
