[jira] [Created] (ARROW-9530) jemalloc autoinit on dl init

["Rob Ambalu (Jira)" <ji...@apache.org>]

Rob Ambalu created ARROW-9530:
---------------------------------

             Summary: jemalloc autoinit on dl init
                 Key: ARROW-9530
                 URL: https://issues.apache.org/jira/browse/ARROW-9530
             Project: Apache Arrow
          Issue Type: Improvement
          Components: C++
            Reporter: Rob Ambalu


We noticed that after we upgraded pyarrow to version 0.17.1 from 0.9.0 we now get two unwanted side effects just by linking in arrow libs into our c++ build.  We link arrow libs into one of our low level core libraries so now all of our applications are affected by these side effects:

1) a "jemalloc_bg_thd" thread is spawned on dlinit before we ever hit main

2) all our apps are now hitting valgrind leak warnings due to a (potential) leak in jemalloc code:

==33515== 656 bytes in 1 blocks are possibly lost in loss record 1 of 1
==33515== at 0x402E9EA: calloc (vg_replace_malloc.c:752)
==33515== by 0x4011F44: _dl_allocate_tls (in /usr/lib64/ld-2.17.so)
==33515== by 0x5DFF9C0: pthread_create@@GLIBC_2.2.5 (in /usr/lib64/libpthread-2.17.so)
==33515== by 0x589186B: je_arrow_private_je_pthread_create_wrapper (background_thread.c:48)
==33515== by 0x589186B: background_thread_create_signals_masked (background_thread.c:365)
==33515== by 0x589186B: background_thread_create_locked (background_thread.c:573)
==33515== by 0x5891A47: je_arrow_private_je_background_thread_create (background_thread.c:598)
==33515== by 0x400F502: _dl_init (in /usr/lib64/ld-2.17.so)
==33515== by 0x40011A9: ??? (in /usr/lib64/ld-2.17.so)



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