Description of problem: nsswitch.conf has first choice for bootparams set to nisplus. If machine is connected to a network with no nisplus server set up, boot is delayed while waiting for non-existent server to respond. Version-Release number of selected component (if applicable): glibc-2.17-14.fc19.x86_64, possibly earlier How reproducible: Completely Steps to Reproduce: 1.Turn on machine attached to network with no nisplus server. 2. 3. Actual results: Boot hangs, kdm must be manually restarted to get login screen. Expected results: Machine boots normally Additional info: nisplus should not be set as a default in nsswitch.conf. People who need it will know and know how to turn it on. People that don't have nisplus will be mystified as to why their machine takes so long to boot.
nisplus is not in nsswitch.conf by default.
I misread the report - nisplus is indeed set in bootparams. Sorry about the confusion.
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This bug appears to have been reported against 'rawhide' during the Fedora 22 development cycle. Changing version to '22'. More information and reason for this action is here: https://fedoraproject.org/wiki/Fedora_Program_Management/HouseKeeping/Fedora22
Fedora 22 changed to end-of-life (EOL) status on 2016-07-19. Fedora 22 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.
We cannot reproduce this. Bob, does your system have a NIS configuration? I'm not sure what processes the bootparams line. As far as I can tell, glibc ignores it, and nss_nisplus does not actually provide facilities for it.
This bug appears to have been reported against 'rawhide' during the Fedora 25 development cycle. Changing version to '25'.
This bug appears to have been reported against 'rawhide' during the Fedora 26 development cycle. Changing version to '26'.
I use this bug report because the described problem is a subproblem of my description here. glibc-2.25-7.fc26.src.rpm contains file nsswitch.conf which has predefined active nisplus entries: $ grep nisplus nsswitch.conf # nisplus Use NIS+ (NIS version 3) #passwd: db files nisplus nis #shadow: db files nisplus nis #group: db files nisplus nis #hosts: db files nisplus nis dns # Example - obey only what nisplus tells us... #services: nisplus [NOTFOUND=return] files #networks: nisplus [NOTFOUND=return] files #protocols: nisplus [NOTFOUND=return] files #rpc: nisplus [NOTFOUND=return] files #ethers: nisplus [NOTFOUND=return] files #netmasks: nisplus [NOTFOUND=return] files bootparams: nisplus [NOTFOUND=return] files netgroup: nisplus sss publickey: nisplus automount: files nisplus aliases: files nisplus I think that nisplus is unsupported sinca a very long time? Is this right? Also note that authconfig has no option to enable or disable nisplus. I suggest to remove all nisplus entries in file nsswitch.conf, at least the uncommented entries. In the commented entries nisplus may be replaced by nis (if nis is not already contained in the line).
(In reply to Edgar Hoch from comment #10) > I think that nisplus is unsupported sinca a very long time? Is this right? We still support the nis+ NSS service module, but you need to install the nss_nis package (provided by glibc) to have access to that NSS service module, otherwise the entry is ignored. We have split nis support out of the core glibc package on purpose so we can carry out a smoother deprecation at some point in the future. Regarding the original bug, we were never able to reproduce any boot slowdown, unless you have a NIS+ server on the network and it doesn't respond to your clients (misconfiguration). Therefore I'm marking this CLOSED/INSUFFICIENT_DATA.
Ok, I understand, nis+ client is still supported. But there is no nis+ server package available for Fedora, right? I have installed package nss_nis, because we use nis. We have boot delays when a host is configured as nis client and no nis server is responding (for example, because network connection is down). I thought that the same will occur for nis+, if configured. But nisplus is not configured by default for entries like hosts, passwd, group, etc. So no delay occurs. bootparams, publickey and netgroup are not used by services that would delay booting so I think this should not delay booting. But programs and services that uses them may be delayed, until timeout? automount and aliases have "files" in first position, so they will not delay if searched entry is found in local files. A delay on nonexistent entries (which are also searched in "nisplus") doesn't matter. I am wondering why only some (uncommented) lines have "nisplus" service configured, but why not either all (e.g. hosts, passwd, group, etc. too) or no lines? I think uncommented lines in nsswitch.conf should only contain services that are available for use. I think that in many - almost all (?) - network environments where Fedora is used there is no nis+ server available. I think all (uncommented) lines in /etc/nsswitch.conf should have only "files" as default service. Services like nis, ldap, etc. can added by authconfig (or sed, in case of nisplus). This would provide a cleaner configuration. For our hosts I remove unused nisplus services in nsswitch.conf, so it is not really a problem for me. But I thought that a clean configuration by predefined by system would be better.
(In reply to Edgar Hoch from comment #12) > Ok, I understand, nis+ client is still supported. But there is no nis+ > server package available for Fedora, right? > > I have installed package nss_nis, because we use nis. > > We have boot delays when a host is configured as nis client and no nis > server is responding (for example, because network connection is down). I > thought that the same will occur for nis+, if configured. We know of some issues in this area (unrelated to nisplus), but it's extremely unlikely this is caused by listing nisplus under bootparams (as the summary says), which makes this bug a little confusing. Are you able to reproduce this on a system which can be rebooted frequently, so that we have a chance of tracking this down? > I am wondering why only some (uncommented) lines have "nisplus" service > configured, but why not either all (e.g. hosts, passwd, group, etc. too) or > no lines? I think uncommented lines in nsswitch.conf should only contain > services that are available for use. I think that in many - almost all (?) - > network environments where Fedora is used there is no nis+ server available. > I think all (uncommented) lines in /etc/nsswitch.conf should have only > "files" as default service. Services like nis, ldap, etc. can added by > authconfig (or sed, in case of nisplus). This would provide a cleaner > configuration. There is some disagreement about listing unused services. But I agree that listing nisplus is pointless these days.