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#1
06-22-2006
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Determine which file is invoking process?
Hey Guys,
I am trying to figure out what is chewing up a bunch of CPU on our SunFire V120 Boxes and I am having a little trouble drilling down the source. When I check the CPU usage it displays tail & cat as the top two processes Code:
PID USERNAME SIZE RSS STATE PRI NICE TIME CPU PROCESS/NLWP 22110 root 1440K 1032K sleep 32 0 0:00.08 24% tail/1 22111 root 1224K 744K run 21 0 0:00.05 17% cat/1 Code:
/usr/bin/cat -s /var/adm/messages.9 /var/adm/messages.8 /var/adm/messages.7 I am trying to determine which script and or file is initiating this cat against the message files, as it needs to be adjusted to simply look at messages and not the messages.x archived files. I thought I could determine this by running lsof against the PID's, but I can't tell from these results if a script or a cron job somewhere is initiating the command. Code:
lsof -p 22110 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME tail 22110 root cwd VDIR 0,2 722 3988152 /tmp tail 22110 root txt VREG 32,0 10064 202941 /usr/bin/tail tail 22110 root txt VREG 32,0 1158072 56610 /usr/lib/libc.so.1 tail 22110 root txt VREG 32,0 17096 230926 /usr/platform/sun4u/lib/libc_psr.so.1 tail 22110 root txt VREG 32,0 4952 56475 /usr/lib/libdl.so.1 tail 22110 root txt VREG 32,0 255948 56528 /usr/lib/ld.so.1 tail 22110 root 0u FIFO 0x30003cf9220 0t512 6871388 (fifofs) PIPE->0x30003cf9308 tail 22110 root 1w VREG 32,4 30 1982519 /var/opt/OV/tmp/OpC/dmesg.out tail 22110 root 2u VCHR 13,2 0t0 321080 /devices/pseudo/mm@0:null tail 22110 root 6r VREG 32,4 118769520 788499 /var/adm/messages tail 22110 root 7r VREG 32,4 0 788488 /var/adm/loginlog lsof -p 22111 cat 22111 root cwd VDIR 0,2 722 3988152 /tmp cat 22111 root txt VREG 32,0 10092 202786 /usr/bin/cat cat 22111 root txt VREG 32,4 257483912 788494 /var/adm/messages.6 cat 22111 root txt VREG 32,0 1158072 56610 /usr/lib/libc.so.1 cat 22111 root txt VREG 32,0 17096 230926 /usr/platform/sun4u/lib/libc_psr.so.1 cat 22111 root txt VREG 32,0 4952 56475 /usr/lib/libdl.so.1 cat 22111 root txt VREG 32,0 255948 56528 /usr/lib/ld.so.1 cat 22111 root 0u VCHR 13,2 0t0 321080 /devices/pseudo/mm@0:null cat 22111 root 1u FIFO 0x30003cf9308 0t262144 6871388 (fifofs) PIPE->0x30003cf9220 cat 22111 root 2u VCHR 13,2 0t0 321080 /devices/pseudo/mm@0:null cat 22111 root 3r VREG 32,4 158160019 788496 /var/adm/messages.5 cat 22111 root 6r VREG 32,4 118658470 788499 /var/adm/messages cat 22111 root 7r VREG 32,4 0 788488 /var/adm/loginlog Can anyone suggest a way or interpret the results to find out what is invoking this cat/tail command? Thanks Jerrad 
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