Why is there a delay in returning the group info via getent on a group with a large number of members?
Issue
- When running a getent for a group with ca. 650 members it takes more than 2 seconds to get a result when sssd has no data in cache
- The ldap query only needs 0.15 seconds to return results
- Running a strace for the getent command shows that it waits on one system call
- This problem has surfaced after the enumerate option was set to false due to heavy network traffic
Environment
- Red Hat Enterprise Linux (RHEL) 5, 6 and 7
- SSSD with a LDAP store for user and group information
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