cacti无法出图，freebsd8.2的系统ports安装，graph debug不报错，可就是没图

huowz

这是平台信息：

Technical Support
General Information
Date         Thu, 27 Dec 2012 21:49:31 +0800
Cacti Version         0.8.8a
Cacti OS         unix
SNMP Version         NET-SNMP version: 5.7.2
RRDTool Version         RRDTool 1.4.x
Hosts         6
Graphs         46
Data Sources         Script/Command: 2
SNMP: 2
SNMP Query: 8
Script Query: 21
Total: 33
Poller Information
Interval         300
Type         cmd.php
Items         Action[0]: 14
Action[1]: 42
Total: 56
Concurrent Processes         1
Max Threads         1
PHP Servers         1
Script Timeout         25
Max OID         10
Last Run Statistics         Time:0.3855 Method:cmd.php Processes:1 Threads:N/A Hosts:4 HostsPerProcess:4 DataSources:30 RRDsProcessed:16
PHP Information
PHP Version         5.2.17
PHP OS         FreeBSD
PHP uname         FreeBSD xxxx.xxxx 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Thu Feb 17 02:41:51 UTC 2011 root@mason.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64
PHP SNMP         Not Installed
max_execution_time         30
memory_limit         128M

这是Graph debug的信息：

        RRDTool Command:

/usr/local/bin/rrdtool graph - \
--imgformat=PNG \
--start=-86400 \
--end=-300 \
--title='FreeBSD - Disk Space - /dev/mfid0s1a' \
--rigid \
--base=1024 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit='0' \
--vertical-label='bytes' \
--slope-mode \
--font TITLE:12: \
--font AXIS:8: \
--font LEGEND:10: \
--font UNIT:8: \
DEF:a="/usr/home/ftp/1520/web001-20110520104025-TxWNos/root/cacti/rra/freebsd_hdd_free_17.rrd":'hdd_used':AVERAGE \
DEF:b="/usr/home/ftp/1520/web001-20110520104025-TxWNos/root/cacti/rra/freebsd_hdd_free_17.rrd":'hdd_free':AVERAGE \
CDEF:cdefa='a,1024,*' \
CDEF:cdefe='b,1024,*' \
CDEF:cdefi='TIME,1356616127,GT,a,a,UN,0,a,IF,IF,TIME,1356616127,GT,b,b,UN,0,b,IF,IF,+,1024,*' \
AREA:cdefa#F51D30FF:"Used"  \
GPRINT:cdefa:LAST:"     Current\:%8.2lf %s"  \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf %s\n"  \
AREA:cdefe#002A97FF:"Available":STACK \
GPRINT:cdefe:LAST:"Current\:%8.2lf %s"  \
GPRINT:cdefe:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:cdefe:MAX:"Maximum\:%8.2lf %s\n"  \
LINE2:cdefi#000000FF:"Total"  \
GPRINT:cdefi:LAST:"    Current\:%8.2lf %s"  \
GPRINT:cdefi:AVERAGE:"Average\:%8.2lf %s"  \
GPRINT:cdefi:MAX:"Maximum\:%8.2lf %s\n"

RRDTool Says:

没有报错，把那个命令的结果输出到一个png文件，就能打开，是这样的：


这个图片的url是"graph_image.php?action=properties&local_graph_id=33&rra_id=0&graph_start=1356530534&graph_end=1356616934"，直接输入地址栏，结果是个图片"http://localhost/cacti/graph_image.php?action=properties&local_graph_id=33&rra_id=0&graph_start=1356530534&graph_end=1356616934"因其本身有错无法显示。

huowz

原来是php.ini里禁用了system函数，取消就好了，呵呵。