[jira] [Resolved] (IMPALA-11640) Build fails on Ubuntu 18/20 when using shared libraries

["Joe McDonnell (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-11640?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joe McDonnell resolved IMPALA-11640.
------------------------------------
    Fix Version/s: Impala 4.2.0
       Resolution: Fixed

> Build fails on Ubuntu 18/20 when using shared libraries
> -------------------------------------------------------
>
>                 Key: IMPALA-11640
>                 URL: https://issues.apache.org/jira/browse/IMPALA-11640
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 4.2.0
>            Reporter: Joe McDonnell
>            Assignee: Joe McDonnell
>            Priority: Major
>             Fix For: Impala 4.2.0
>
>
> When building on Ubuntu 18 or Ubuntu 20 with shared libraries (-so), the build fails because the unifiedbetests binary fails to run as part of the validate-unified-backend-test-filters.py invocation:
> {noformat}
> 16:39:22 F1005 23:39:22.237543 88570 unwind_safeness.cc:76] Check failed: !error failed to find symbol dlopen: /home/ubuntu/Impala/be/build/release/kudu_util/libkudu_util.so: undefined symbol: dlopen
> 16:39:22 FAILED: Unified backend test executable returned an error when trying
> 16:39:22         to list tests.
> 16:39:22 Command: /home/ubuntu/Impala/bin/run-binary.sh /home/ubuntu/Impala/be/build/release//service/unifiedbetests --gtest_list_tests
> 16:39:22 Return Code: -6
> 16:39:22 stdout:
> 16:39:22 
> 16:39:22 stderr:
> 16:39:22 None{noformat}
> When building locally, other binaries also fail to execute with the same message.
> One theory is that the code in unwind_safeness.cc has never worked, but Ubuntu 16.04 is impacted by a glibc bug that prevents it from setting an error ([https://sourceware.org/bugzilla/show_bug.cgi?id=19509]). Newer Ubuntu correctly report the error, which leads to the failure.
> One option is to change unwind_safeness.cc to tolerate missing dlopen/dlclose. Impala doesn't ship using shared libraries. If the unwind_safeness.cc variables that contain dlopen/dlclose are actually used after a failure to resolve dlopen/dlclose, then it would result in a SIGSEGV and it would be very obvious.



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