Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: eglibc (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1760714
Title:
getlogin_r is performing NSS lookups when loginid isn't set
Status in eglibc package in Ubuntu:
Confirmed
Bug description:
This the eglibc duplicate of
https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1760713 (which is
for glibc)
For configurations that use networked naming services for passwd (in
particular LDAP), processes that have no login UID, there are
excessive delays when getlogin_r() is called.
For such processes, /proc/self/loginid is set to a sentinel value
(-1), when files is the only backend, or if nscd is running this
returns quickly. However if ldap is configured as a backend for
passwd, and nscd isn't being used (which for various political and
economic reasons is not always feasible) network requests to the
configured LDAP servers will occur which can slow down process
creation enough to cause timeouts in parent processes in certain
contexts.
Good news, however, as this was recently fixed upstream by:
https://sourceware.org/git/?p=glibc.git;a=commit;h=cc8a1620eb97ccddd337d157263c13c57b39ab71
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