[jira] [Created] (ZOOKEEPER-3983) C client test suite hangs forever 'sss' is configured in /etc/nsswitch.conf

["Christopher Tubbs (Jira)" <ji...@apache.org>]

Christopher Tubbs created ZOOKEEPER-3983:
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             Summary: C client test suite hangs forever 'sss' is configured in /etc/nsswitch.conf
                 Key: ZOOKEEPER-3983
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3983
             Project: ZooKeeper
          Issue Type: Bug
          Components: c client, tests
    Affects Versions: 3.7.0
         Environment: Fedora 32 x86_64
default /etc/nsswitch.conf file (provided by glibc package)
sssd services are not running, but sss does appear above files in the 'passwd' entry
            Reporter: Christopher Tubbs


While testing a full build on the master branch (3.7.0-SNAPSHOT), I observed that the C client tests hang indefinitely when reaching the zktest-mt's Zookeeper_close test suite (nothing is printed from that suite, but Zookeeper_init finishes and then nothing is printed)

Attaching gdb as a debugger to the zktest-mt process, with the help of [~ztzg] and [~symat] I saw that it was stuck in the sss because of the test mocking sockets, and sss requiring a non-mocked socket to call getpwuid_r and getlogin functions in zookeeper-client/zookeeper-client-c/src/zookeeper.c

Disabling the lines in zookeeper.c that called those functions, which seemed to be used for logging information only, the tests were able to proceed and complete in under 9 minutes (full-build, without running any surefire/junit tests).



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