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当整数和浮点数混合时，RRDtool 更新不起作用

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当整数和浮点数混合时，RRDtool 更新不起作用

我正在尝试存储我的路由器的 ADSL 统计信息。我没有对其他人执行 rrdtool 信息，因为他们现在在使用与更新脚本中相同的命令后显示正确的值。奇怪的是，实际的浮点值存储得很好。

两个值都是 GAUGE。

root@pi:/scripts# ./routerstats.sh&&rrdtool info rrd/attn.rrd|grep last 
+ awk ' /^Max/      { maxup = $5; maxdown = $10; }
    /^Channel/  { curup = $6; curdown = $11; }
    /^SNR/      { snrdown = $3; snrup = $4; }
    /^Attn/     { attndown = $2; attnup = $3; }
    /^Pwr/      { pwrdown = $2; pwrup = $3; }
    END     { up = sprintf("N:%s:%s", maxup, curup);
              down = sprintf("N:%s:%s", maxdown, curdown);
              snr = sprintf("N:%s:%s", snrdown, snrup);
              attn = sprintf("N:%s:%s", attndown, attnup);
              pwr = sprintf("N:%s:%s", pwrdown, pwrup);
              system("echo up " up);
              system("echo down " down);
              system("echo snr " snr);
              system("echo attn " attn);
              system("echo pwr " pwr);
              system("rrdtool update /scripts/rrd/up.rrd -t max N:" maxup);
              system("rrdtool update /scripts/rrd/down.rrd -t max N:" maxdown);
              system("rrdtool update /scripts/rrd/snr.rrd -t down N:" snrdown);
              system("rrdtool update /scripts/rrd/attn.rrd -t down N:" attndown);
              system("rrdtool update /scripts/rrd/pwr.rrd -t down N:" pwrdown);
              system("rrdtool update /scripts/rrd/up.rrd -t current N:" curup);
              system("rrdtool update /scripts/rrd/down.rrd -t current N:" curdown);
              system("rrdtool update /scripts/rrd/snr.rrd -t up N:" snrup);
              system("rrdtool update /scripts/rrd/attn.rrd -t up N:" attnup);
              system("rrdtool update /scripts/rrd/pwr.rrd -t up N:" pwrup);
            }'
up N:1080:512
down N:10788:2048
snr N:20.4:12.0
attn N:26.0:15.0
pwr N:5.1:4.0
' to float not complete: tail 'nversion of '12.0
' to float not complete: tail 'onversion of '15.0
' to float not complete: tail 'nversion of '4.0
last_update = 1441477923
ds[down].last_ds = "U"
ds[up].last_ds = "U"

数据传入awk：

Status: Showtime
Last Retrain Reason:    0
Last initialization procedure status:   0
Max:    Upstream rate = 1120 Kbps, Downstream rate = 10816 Kbps
Channel:        FAST, Upstream rate = 512 Kbps, Downstream rate = 2048 Kbps

Link Power State:       L0
Mode:                   G.DMT 
TPS-TC:                 ATM Mode
Trellis:                ON
Line Status:            No Defect
Training Status:        Showtime
                Down            Up
SNR (dB):        21.4            12.0
Attn(dB):        26.0            15.0
Pwr(dBm):        5.0             2.9

答案1

从错误消息的损坏程度来看：

conversion of '12.0' to float not complete: tail '...'

您的数据可能在行尾有回车符。 unix 上的 awk 不会将这些字符视为空格。最简单的解决方案是将数据通过管道传输

sed 's/\r$//'

例如，在将其传递给 awk 之前。

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