Nagios监控Redis
# chmod +x check_redis.p*# ll check_redis.p*
-rwxr-xr-x. 1 root root15812 Oct 102014 check_redis.php
-rwxr-xr-x. 1 root root 141829 Oct 102014 check_redis.pl
# ./check_redis.pl --help
Can't locate Redis.pm in @INC (@INC contains: /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at ./check_redis.pl line 421.
BEGIN failed--compilation aborted at ./check_redis.pl line 421.
# perl -MCPAN -e shell
cpan> install Redis
Running Build test
Make had some problems, won't test
Running Build install
Make had some problems, won't install
Could not read '/root/.cpan/build/Redis-1.976-Zhz6xI/META.yml'.Falling back to other methods to determine prerequisites……
cpan> install YAML#可能会安装失败，失败原因是网络连接，多执行几次就会成功。
Appending installation info to /usr/lib64/perl5/perllocal.pod
TINITA/YAML-1.18.tar.gz
/usr/bin/make install-- OK
CPAN: YAML loaded ok (v1.18)
cpan> install Redis
Running Build test
Make had some problems, won't test
Running Build install
Make had some problems, won't install
cpan> install Build#Build.PL故障，重新安装install Build,成功后，再执行install Redis
Running Build install
make test had returned bad status, won't install without force
.....
cpan>q
Terminal does not support GetHistory.
Lockfile removed.
# yum -y install mod_perl2
# perl -MCPAN -e shell
cpan> install Redis#这个过程中会有很多的交互操作，直接回车即可
Installing /usr/local/share/perl5/Redis/List.pm
Installing /usr/local/share/man/man3/Redis.3pm
Installing /usr/local/share/man/man3/Redis::Hash.3pm
Installing /usr/local/share/man/man3/Redis::List.3pm
Installing /usr/local/share/man/man3/Redis::Sentinel.3pm
DAMS/Redis-1.991.tar.gz
./Build install-- OK
cpan> q
Terminal does not support GetHistory.
Lockfile removed.
# ./check_redis.pl --help
General and Server Connection Options:
-H, --hostname=ADDRESS
Hostname or IP Address to check
-p, --port=INTEGER
port number (default: 6379)
-D, --database=NAME
optional database name (usually a number), needed for --query but otherwise not needed
-x, --password=STRING#redis有密码需要指定密码，redis.conf中requirepass后面的就是密码
Password for Redis authentication. Safer alternative is to put them in a file and use -C
-C, --credentials=FILENAME#可以将密码写在文件里，通过-C来读取从
Credentials file to read for Redis authentication
-t, --timeout=NUMBER
Allows to set timeout for execution of this plugin. This overrides nagios default.
-w, --warn=STR[,STR[,STR[..]]]
-c, --crit=STR[,STR[,STR[..]]]
....
Variables and Thresholds Set as List:
-a, --variables=STRING[,STRING[,STRING...]] #指定需要检测的项目，例如used_memory_human,connected_clients等，用单引号括起来，用分号隔开。
-w, --warn=STR[,STR[,STR[..]]]
> - warn if data is above this value (default for numeric values)
< - warn if data is below this value (must be followed by number)
= - warn if data is equal to this value (default for non-numeric values)
! - warn if data is not equal to this value
~ - do not check this data (must not be followed by number or ':')
^ - for numeric values this disables check that warning < critical
Threshold values can also be specified as range in two forms:
num1:num2- warn if data is outside range i.e. if datanum2
@num1:num2 - warn if data is in range i.e. data>=num1 && data
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