temp files not cleaning up

tmp_file_debugging.txt

# read elf

[jay@sysmon02 ~]$ sudo readelf -d /data/jail/home/devops01/cqlsh

Dynamic section at offset 0x6df0 contains 30 entries:
  Tag        Type                         Name/Value
 0x0000000000000001 (NEEDED)             Shared library: [libdl.so.2]
 0x0000000000000001 (NEEDED)             Shared library: [libz.so.1]
 0x0000000000000001 (NEEDED)             Shared library: [libc.so.6]
 0x000000000000000c (INIT)               0x4014e8
 0x000000000000000d (FINI)               0x404bf4
 0x0000000000000019 (INIT_ARRAY)         0x606dd8
 0x000000000000001b (INIT_ARRAYSZ)       8 (bytes)
 0x000000000000001a (FINI_ARRAY)         0x606de0
 0x000000000000001c (FINI_ARRAYSZ)       8 (bytes)
 0x000000006ffffef5 (GNU_HASH)           0x4002d0
 0x0000000000000005 (STRTAB)             0x406aa4
 0x0000000000000006 (SYMTAB)             0x400300
 0x000000000000000a (STRSZ)              742 (bytes)
 0x000000000000000b (SYMENT)             24 (bytes)
 0x0000000000000015 (DEBUG)              0x0
 0x0000000000000003 (PLTGOT)             0x607000
 0x0000000000000002 (PLTRELSZ)           1656 (bytes)
 0x0000000000000014 (PLTREL)             RELA
 0x0000000000000017 (JMPREL)             0x400e70
 0x0000000000000007 (RELA)               0x400dc8
 0x0000000000000008 (RELASZ)             168 (bytes)
 0x0000000000000009 (RELAENT)            24 (bytes)
 0x000000006ffffffe (VERNEED)            0x400d68
 0x000000006fffffff (VERNEEDNUM)         2
 0x000000006ffffff0 (VERSYM)             0x400cce
 0x000000006ffffef9 (GNU_LIBLIST)        0x400a20
 0x000000006ffffdf7 (GNU_LIBLISTSZ)      80 (bytes)
 0x000000006ffffef8 (GNU_CONFLICT)       0x8072a8
 0x000000006ffffdf6 (GNU_CONFLICTSZ)     816 (bytes)
 0x0000000000000000 (NULL)               0x0

# tmp files

[jay@sysmon02 ~]$ ls -ltr /data/jail/tmp
total 0
drwx------. 5 devops01 devops01 1480 Feb 19 00:28 _MEIDJneKg
drwx------. 5 devops01 devops01 1480 Feb 19 00:30 _MEI7rpOTJ
...
...

# checking that it's no longer open

[jay@sysmon02 ~]$ sudo lsof | grep '_MEIDJneKg'
[jay@sysmon02 ~]$ # <nothing>