Memory used by Post process increases over time until there is not memory left in the server as seen in the UNIX top command output.
top - 14:04:55 up 2 days, 16:56, 4 users, load average: 2.44, 3.60, 3.08
Tasks: 910 total, 2 running, 908 sleeping, 0 stopped, 0 zombie
%Cpu(s): 3.8 us, 1.0 sy, 1.1 ni, 84.4 id, 9.6 wa, 0.0 hi, 0.1 si, 0.0 st
KiB Mem : 32666296 total, 211344 free, 23764220 used, 8690732 buff/cache
KiB Swap: 16449532 total, 13306212 free, 3143320 used. 8474576 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
31813 splex21+ 24 4 160456 2956 1512 R 6.2 0.0 0:00.01 top
2193 splex21+ 20 0 165316 7948 6056 S 0.0 0.0 0:00.07 sp_ctrl
2194 splex21+ 20 0 134004 13288 9884 S 0.0 0.0 0:00.04 sp_cnc
2892 splex21+ 20 0 1273668 277496 37464 S 0.0 0.8 5:03.04 sp_opst_mt ---> post process memory increases over time
6687 splex21+ 20 0 4113324 2.556g 49676 S 0.0 8.2 7:43.90 sp_opst_mt
9869 splex21+ 20 0 119008 1984 1556 S 0.0 0.0 0:00.00 ksh
14362 splex21+ 20 0 153072 1956 524 S 0.0 0.0 0:02.59 sshd
14365 splex21+ 20 0 119104 1624 1124 S 0.0 0.0 0:00.25 ksh
17716 splex21+ 20 0 153072 1800 380 S 0.0 0.0 0:00.48 sshd
17726 splex21+ 20 0 119008 992 544 S 0.0 0.0 0:00.18 ksh
17857 splex21+ 20 0 274072 90384 74968 D 0.0 0.3 18:11.02 sp_ordr
17986 splex21+ 20 0 171176 75988 75588 S 0.0 0.2 0:22.58 sp_cop
18439 splex21+ 20 0 302080 21520 10612 S 0.0 0.1 14:05.51 sp_ocap
27058 splex21+ 20 0 119008 2024 1600 S 0.0 0.0 0:00.00 ksh