Ceph

Fails locally as well.

./src/arrow/cpp/cmake_modules/ThirdpartyToolchain.cmake within the arrow submodule seems to contain the cmake logic for installing xsimd -- build_xsimd:

macro(build_xsimd)
  message(STATUS "Building xsimd from source")
  set(XSIMD_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/xsimd_ep/src/xsimd_ep-install")
  set(XSIMD_CMAKE_ARGS ${EP_COMMON_CMAKE_ARGS} "-DCMAKE_INSTALL_PREFIX=${XSIMD_PREFIX}")

  externalproject_add(xsimd_ep
                      ${EP_LOG_OPTIONS}
                      PREFIX "${CMAKE_BINARY_DIR}" 
                      URL ${XSIMD_SOURCE_URL}
                      URL_HASH "SHA256=${ARROW_XSIMD_BUILD_SHA256_CHECKSUM}" 
                      CMAKE_ARGS ${XSIMD_CMAKE_ARGS})

  set(XSIMD_INCLUDE_DIR "${XSIMD_PREFIX}/include")

  add_dependencies(toolchain xsimd_ep)
  add_dependencies(toolchain-tests xsimd_ep)

  set(XSIMD_VENDORED TRUE)
endmacro()

ARROW_XSIMD_BUILD_SHA256_CHECKSUM is defined in ./src/arrow/cpp/thirdparty/versions.txt as

ARROW_XSIMD_BUILD_SHA256_CHECKSUM=0a841e6c8acf216150e4fc19fca8e29fbab9614b56ac7b96e56019264ca27b26

as we'd expect.

The issue here is within the arrow submodule.

This behavior doesn't happen on centos 9 presumably because centos 9 has packages?

sounds like this is related to https://github.com/apache/arrow/issues/33939, which blames github for changing the compression of their archives. https://github.blog/changelog/2023-01-30-git-archive-checksums-may-change/ says they've reverted that change, so maybe the problem will fix itself?

from arrow/cpp/cmake_modules/ThirdpartyToolchain.cmake:

set_urls(XSIMD_SOURCE_URL
           "https://github.com/xtensor-stack/xsimd/archive/${ARROW_XSIMD_BUILD_VERSION}.tar.gz"

this url would be effected by that change

we set ARROW_DEPENDENCY_SOURCE=SYSTEM in cmake/modules/BuildArrow.cmake to avoid downloading their bundled dependencies, but this xsimd library was the only thing that arrow's cmake still insisted on downloading for itself

This behavior doesn't happen on centos 9 presumably because centos 9 has packages?

yeah, https://github.com/ceph/ceph/pull/46535 merged last week to stop building arrow from submodule on centos9

sigh yep, will check back in the morning.