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check-log

Description

Checks a log file using a regular expression.

Setting

[plugin.checks.log]
command = "/path/to/check-log --file=/path/to/file --pattern=REGEXP --warning-over=N --critical-over=N"

Using glob

You can check multiple files by using globs (and zsh extented globs by mattn/go-zglob) in --file option. For example, --file=/tmp/some.log_* will check all of /tmp/some.log_1, /tmp/some.log_2, and so on.

And since command in mackerel-agent.conf will be parsed by shell (in *nix /bin/sh -c, in Windows cmd /c), specifying glob like --file /tmp/some.log_* does not work as expected. It will be expanded like --file /tmp/some.log_1 /tmp/some.log_2, so it will check only /tmp/some.log_1.

Therefore, when you want to check multiple files, use --file=<glob>, not --file <glob>.

Encoding

To specify encoding of the log files, you can use --encoding option. Below's list of supported encodings.

  • UTF-8
  • CP437
  • CP866
  • ISO-2022-JP
  • LATIN-1
  • ISO-8859-1
  • ISO-8859-2
  • ISO-8859-3
  • ISO-8859-4
  • ISO-8859-5
  • ISO-8859-6
  • ISO-8859-7
  • ISO-8859-8
  • ISO-8859-10
  • ISO-8859-13
  • ISO-8859-14
  • ISO-8859-15
  • ISO-8859-16
  • KOI8R
  • KOI8U
  • Macintosh
  • MacintoshCyrillic
  • Windows1250
  • Windows1251
  • Windows1252
  • Windows1253
  • Windows1254
  • Windows1255
  • Windows1256
  • Windows1257
  • Windows1258
  • Windows874
  • XUserDefined
  • Big5
  • EUC-KR
  • HZ-GB2312
  • sjis
  • CP932
  • Shift_JIS
  • EUC-JP
  • UTF-16 (detect BOM)
  • UTF-16BE
  • UTF-16LE

See Other