Goal: 

The instructlab app containers have this block to work around a problem with PyArrow and jemalloc:

# ImportError: /usr/lib64/libjemalloc.so.2: cannot allocate memory in static TLS block
#
# The recommendation is to build jemalloc with the --disable-initial-exec-tls option
# A workaround is to preload jemalloc when invoking Python commands
ENV LD_PRELOAD=/usr/lib64/libjemalloc.so.2

 We need to find a more permanent solution that does not use LD_PRELOAD. Preloading is a short-term workaround but not a long-term solution. Amongst others Intel recommends tcmalloc for Gaudi. For RHELAI 1.3 we have to force jemalloc.

See https://github.com/jemalloc/jemalloc/issues/937 for upstream bug report.

Acceptance Criteria:

InstructLab and other consumers of PyArrow work without LD_PRELOAD env var.

Possible solutions:

• build PyArrow without jemalloc bindings
• rebuild jemalloc with option --disable-initial-exec-tls

Both options have pros and cons.