Joe McDonnell created IMPALA-11640:
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Summary: 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
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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