[jira] [Created] (KUDU-2094) GCC 7.1 complains about alignment of Counter

["Tim Armstrong (JIRA)" <ji...@apache.org>]

Tim Armstrong created KUDU-2094:
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             Summary: GCC 7.1 complains about alignment of Counter
                 Key: KUDU-2094
                 URL: https://issues.apache.org/jira/browse/KUDU-2094
             Project: Kudu
          Issue Type: Bug
            Reporter: Tim Armstrong
            Priority: Minor


I found this when building the kudu/util subtree in Impala with gcc 7.1.

In a few places, e.g. metrics.h, the compiler complains that the alignment required by Counter is less than the alignment guaranteed by new.
{code}
    m = new Counter(proto);
{code}

I worked around this by setting -faligned-new, which was added recently to GCC and is enabled by default with C++17. The setting ensures that new allocates memory with the alignment required by the data type.



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