pre-release WLO 1.5.0 - provide better error messages when getting performance data with missing prereq packages

[tam512]

Test pre-release WebSphere Liberty operator 1.5.0, test WebSphereLibertyPerformanceData on Amazon EKS with efs-sc/efs.csi.aws.com storage class

I can see the linperf_RESULTS.20250825.201129.tar.gz file created

% kubectl -n ebuy-wlk-ubi9-j21 get webspherelibertyperformancedata -w
NAME                         STARTED   COMPLETED   PERFORMANCE DATA FILE
wl-performance-data-sample   True      True        /serviceability/ebuy-wlk-ubi9-j21/ebuy-wlk-ubi9-j21-0/performanceData/linperf_RESULTS.20250825.201129.tar.gz

but when inspect the linperf_RESULTS.20250825.201129.tar.gz file, I see most of the output files have command not found

% tar -xvzf linperf_RESULTS.20250825.201129.tar.gz
% ls -l
total 96
-rw-r--r--  1 tam  staff   845 Aug 25 15:13 df-hk.out
-rw-r--r--  1 tam  staff    62 Aug 25 15:13 dmesg.out
-rw-r--r--  1 tam  staff     0 Aug 25 15:11 ifconfig.out
-rw-r--r--  1 tam  staff  1508 Aug 25 15:18 linperf_RESULTS.20250825.201129.tar.gz
-rw-r--r--  1 tam  staff   193 Aug 25 15:13 netstat.out
-rw-r--r--  1 tam  staff    59 Aug 25 15:11 ps.aux.out
-rw-r--r--  1 tam  staff    92 Aug 25 15:11 ps.out
-rw-r--r--  1 tam  staff   460 Aug 25 15:13 ps.threads.out
-rw-r--r--  1 tam  staff  2348 Aug 25 15:13 screen.out
-rw-r--r--  1 tam  staff    93 Aug 25 15:11 top.out
-rw-r--r--  1 tam  staff   107 Aug 25 15:11 topdashH.1.out
-rw-r--r--  1 tam  staff     0 Aug 25 15:11 uptime.out
-rw-r--r--  1 tam  staff    95 Aug 25 15:11 vmstat.out
-rw-r--r--  1 tam  staff    40 Aug 25 15:11 whoami.out

% cat top.out
Mon Aug 25 08:11:29 PM UTC 2025

/output/helper/linperf.sh: line 427: top: command not found

% cat ps.out
Mon Aug 25 08:11:29 PM UTC 2025
/output/helper/linperf.sh: line 414: ps: command not found

% cat netstat.out
Mon Aug 25 08:11:29 PM UTC 2025
/output/helper/linperf.sh: line 407: netstat: command not found

Mon Aug 25 08:13:30 PM UTC 2025
/output/helper/linperf.sh: line 522: netstat: command not found

[tam512]

I realized that I do not have

RUN command -v yum && pkgcmd=yum || pkgcmd=microdnf && ($pkgcmd update -y && $pkgcmd install -y procps-ng net-tools ncurses hostname)

in this instantOn app image.
I will try again on daytrader10 container app image which has the above command when building the app image

[tam512]

it works better with daytrader10 app image with microdnf installed

% oc -n daytrader10 exec daytrader10-1 -- ls -l /serviceability/daytrader10/daytrader10-1/performanceData
total 2116
-rw-r--r-- 1 1000 1000 2162947 Aug 25 22:21 linperf_RESULTS.20250825.221948.tar.gz
tam@MacBookPro daytrader10 % ls -l
total 42648
-rw-r--r--  1 tam  staff      1246 Aug 25 17:21 df-hk.out
-rw-r--r--  1 tam  staff        58 Aug 25 17:21 dmesg.out
-rw-r--r--  1 tam  staff       876 Aug 25 17:19 ifconfig.out
-rw-r--r--  1 tam  staff  18759680 Aug 25 17:21 javacore.1.tar
-rw-r--r--  1 tam  staff   2162947 Aug 25 17:24 linperf_RESULTS.20250825.221948.tar.gz
-rw-r--r--  1 tam  staff      5986 Aug 25 17:21 netstat.out
-rw-r--r--  1 tam  staff      2169 Aug 25 17:19 ps.aux.out
-rw-r--r--  1 tam  staff      2244 Aug 25 17:19 ps.out
-rw-r--r--  1 tam  staff    692940 Aug 25 17:21 ps.threads.out
-rw-r--r--  1 tam  staff      2309 Aug 25 17:21 screen.out
-rw-r--r--  1 tam  staff      2735 Aug 25 17:21 top.out
-rw-r--r--  1 tam  staff    163001 Aug 25 17:21 topdashH.1.out
-rw-r--r--  1 tam  staff        62 Aug 25 17:19 uptime.out
-rw-r--r--  1 tam  staff      2453 Aug 25 17:21 vmstat.out
-rw-r--r--  1 tam  staff        37 Aug 25 17:19 whoami.out

% cat top.out
Mon Aug 25 22:19:48 UTC 2025

top - 22:19:48 up  6:55,  0 users,  load average: 0.12, 0.16, 0.17
Tasks:   6 total,   1 running,   5 sleeping,   0 stopped,   0 zombie
%Cpu(s):  6.9 us,  5.2 sy,  0.0 ni, 79.3 id,  8.6 wa,  0.0 hi,  0.0 si,  0.0 st
MiB Mem :  15802.4 total,   1178.3 free,   2997.1 used,  11627.0 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.  10303.1 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
    210 default   20   0   15040   3444   3044 S  13.3   0.0   0:00.05 /bin/sh+
      1 default   20   0 3652260 536260 152576 S   0.0   3.3   4:31.25 /opt/ja+
    284 default   20   0   52016   4224   3668 R   0.0   0.0   0:00.00 top -bc+
    292 default   20   0   52148   4164   3608 S   0.0   0.0   0:00.00 top -bH+
    298 default   20   0   44932   2244   1952 S   0.0   0.0   0:00.00 vmstat +
    315 default   20   0   47688   3856   3440 D   0.0   0.0   0:00.00 ps -eLf

top - 22:20:48 up  6:56,  0 users,  load average: 0.08, 0.14, 0.17
Tasks:   6 total,   1 running,   5 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3.5 us,  2.0 sy,  0.0 ni, 93.5 id,  0.6 wa,  0.0 hi,  0.3 si,  0.1 st
MiB Mem :  15802.4 total,   1109.8 free,   3000.4 used,  11692.2 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.  10300.1 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
      1 default   20   0 3652260 538156 153312 S   6.2   3.3   4:34.97 /opt/ja+
    292 default   20   0   52148   4164   3608 S   0.0   0.0   0:00.02 top -bH+
    210 default   20   0   15040   3444   3044 S   0.0   0.0   0:00.05 /bin/sh+
    284 default   20   0   52016   4224   3668 R   0.0   0.0   0:00.00 top -bc+
    298 default   20   0   44932   2244   1952 S   0.0   0.0   0:00.00 vmstat +
    337 default   20   0   26052   1544   1360 S   0.0   0.0   0:00.00 /usr/bi+

top - 22:21:48 up  6:57,  0 users,  load average: 0.28, 0.19, 0.18
Tasks:   5 total,   1 running,   4 sleeping,   0 stopped,   0 zombie
%Cpu(s):  3.0 us,  1.8 sy,  0.0 ni, 94.2 id,  0.6 wa,  0.0 hi,  0.3 si,  0.1 st
MiB Mem :  15802.4 total,   1045.3 free,   2997.8 used,  11759.3 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.  10302.6 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
      1 default   20   0 3652260 540848 155992 S   4.8   3.3   4:37.84 /opt/ja+
    292 default   20   0   52148   4164   3608 S   0.1   0.0   0:00.06 top -bH+
    210 default   20   0   15040   3444   3044 S   0.0   0.0   0:00.05 /bin/sh+
    284 default   20   0   52016   4224   3668 R   0.0   0.0   0:00.00 top -bc+
    366 default   20   0   26052   1532   1348 S   0.0   0.0   0:00.00 /usr/bi+

[tam512]

do we want to keep this defect to investigate to see if we can detect missing packages and provide a better error message?

[leochr]

@tam512 Yes, let's keep this open. This wouldn't be a stop-ship issue, but it'll be good to determine if we can provide a better error message.