[Xymon] SPLITNCV with wildcard because of multiple graphs from one test

[Oliver R.]

Dear All,

I have a custom test that reports data from nvme disks from the command:

nvme smart-log /dev/nvme2n1 -o json

The output is processed so that the client reports the following to the
server:

S3ESNX0J951626N-critical_warning : 0
S3ESNX0J951626N-temperature : 318
S3ESNX0J951626N-avail_spare : 100
S3ESNX0J951626N-spare_thresh : 10
S3ESNX0J951626N-percent_used : 92
S3ESNX0J951626N-data_units_read : 27832088
S3ESNX0J951626N-data_units_written : 93877408
S3ESNX0J951626N-host_read_commands : 180442558
S3ESNX0J951626N-host_write_commands : 916278700
S3ESNX0J951626N-controller_busy_time : 4028
S3ESNX0J951626N-power_cycles : 218
S3ESNX0J951626N-power_on_hours : 2995
S3ESNX0J951626N-unsafe_shutdowns : 86
S3ESNX0J951626N-media_errors : 0
S3ESNX0J951626N-num_err_log_entries : 0
S3ESNX0J951626N-warning_temp_time : 0
S3ESNX0J951626N-critical_comp_time : 0
S3ESNX0J951626N-temperature_sensor_1 : 318
S3ESNX0J951626N-temperature_sensor_2 : 323
S3ESNX0J951626N-thm_temp1_trans_count : 0
S3ESNX0J951626N-thm_temp2_trans_count : 0
S3ESNX0J951626N-thm_temp1_total_time : 0
S3ESNX0J951626N-thm_temp2_total_time : 0
2J4520102682-critical_warning : 0
2J4520102682-temperature : 314
2J4520102682-avail_spare : 100
2J4520102682-spare_thresh : 32
2J4520102682-percent_used : 2
2J4520102682-data_units_read : 9450966
2J4520102682-data_units_written : 24105094
2J4520102682-host_read_commands : 137338588
2J4520102682-host_write_commands : 284702582
2J4520102682-controller_busy_time : 0
2J4520102682-power_cycles : 46
2J4520102682-power_on_hours : 1107
2J4520102682-unsafe_shutdowns : 10
2J4520102682-media_errors : 0
2J4520102682-num_err_log_entries : 0
2J4520102682-warning_temp_time : 0
2J4520102682-critical_comp_time : 0
2J4520102682-thm_temp1_trans_count : 0
2J4520102682-thm_temp2_trans_count : 0
2J4520102682-thm_temp1_total_time : 0
2J4520102682-thm_temp2_total_time : 0
S3ESNX0J951635M-critical_warning : 0
S3ESNX0J951635M-temperature : 310
S3ESNX0J951635M-avail_spare : 100
S3ESNX0J951635M-spare_thresh : 10
S3ESNX0J951635M-percent_used : 92
S3ESNX0J951635M-data_units_read : 32693378
S3ESNX0J951635M-data_units_written : 95742837
S3ESNX0J951635M-host_read_commands : 213266959
S3ESNX0J951635M-host_write_commands : 918085461
S3ESNX0J951635M-controller_busy_time : 4280
S3ESNX0J951635M-power_cycles : 218
S3ESNX0J951635M-power_on_hours : 3072
S3ESNX0J951635M-unsafe_shutdowns : 86
S3ESNX0J951635M-media_errors : 0
S3ESNX0J951635M-num_err_log_entries : 1
S3ESNX0J951635M-warning_temp_time : 0
S3ESNX0J951635M-critical_comp_time : 0
S3ESNX0J951635M-temperature_sensor_1 : 310
S3ESNX0J951635M-temperature_sensor_2 : 320
S3ESNX0J951635M-thm_temp1_trans_count : 0
S3ESNX0J951635M-thm_temp2_trans_count : 0
S3ESNX0J951635M-thm_temp1_total_time : 0
S3ESNX0J951635M-thm_temp2_total_time : 0

As you can see, there are three disks, that have the same metrics with
different values. Now I started with a xymonserver.d/nvme.cfg looking
like this:

TEST2RRD="$TEST2RRD,nvme=ncv"
SPLITNCV_nvme="*:GAUGE"
GRAPHS_nvme="nvmecriticalwarning,nvmetemperature,nvmeavailspare,nvmesparethresh,nvmepercentused,nvmedataunitsread,nvmedataunitswritten,nvmehostreadcommands,nvmehostwritecommands,nvmecontrollerbusytime,nvmepowercycles,nvmepoweronhours,nvmeunsafeshutdowns,nvmemediaerrors,nvmenumerrlogentries,nvmewarningtemptime,nvmecriticalcomptime,nvmetemperaturesensor1,nvmetemperaturesensor2,nvmethmtemp1transcount,nvmethmtemp2transcount,nvmethmtemp1totaltime,nvmethmtemp2totaltime"

This causes all rrd files beeing created correctly like this:

$ ls -1 /var/lib/xymon/rrd/wsrbreb/nvme*temperature.rrd
/var/lib/xymon/rrd/wsrbreb/nvme,2J4520102682_temperature.rrd
/var/lib/xymon/rrd/wsrbreb/nvme,S3ESNX0J951626N_temperature.rrd
/var/lib/xymon/rrd/wsrbreb/nvme,S3ESNX0J951635M_temperature.rrd

Unfortunately all datasets are now saved as datatype "GAUGE", but most
need to have "DERIVE", but I cannot figure out how to do this. Here is
what I've tried:

SPLITNCV_nvme="temperture:GAUGE"
SPLITNCV_nvme="*temperture:GAUGE"
SPLITNCV_nvme=".*temperture:GAUGE"
SPLITNCV_nvme="%.*temperture:GAUGE"


One thing that does work is the following:

SPLITNCV_nvme="S3ESNX0J951626N_temperature:GAUGE"

But as you can see it requieres the name of the SSD, which cancels out
all dynamics.

How can I work with wildcards in SPLITNCV scenarios?

Thank you for your help!

Regards