Centos 所有图的force-munin再生

昨天，我配置了

munin

从另一台服务器获取日志，并根据配置示例a

Totals

对两台服务器的负载进行了自定义配置

我使用

rrdtool

将

rrd

文件转换为

xml

，并复制它们，然后将它们转换回新机器的

rrd

，以恢复其历史记录

现在它运行得很好，但总数似乎在一段时间后停止生成。我检查了日志，它说load2-day.png。。。等等，找不到文件

我检查过了，它们在那里，

chown

和

chmod

匹配

munin

有没有关于为什么它可能看不到这些文件的想法？一旦我让它看到这些文件，我如何才能强制进行完整的图形重新生成，这样我就不必等待5分钟来确定它是否有效

在此处完成日志：

perl的

perl

错误似乎不会影响任何东西，尽管我希望得到一个删除它的提示

2013/09/10 13:45:10 Starting munin-graph
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value in subroutine entry at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 758.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 775.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 784.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 786.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 787.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value in subroutine entry at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 758.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 775.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 784.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 786.
2013/09/10 13:45:10 [PERL WARNING] Use of uninitialized value $filename in concatenation (.) or string at /usr/share/perl5/vendor_perl/Munin/Master/GraphOld.pm line 787.
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load2-month.png : opening '': No such file or directory
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load2-week.png : opening '': No such file or directory
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load2-day.png : opening '': No such file or directory
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load2-year.png : opening '': No such file or directory
2013/09/10 13:45:10 [INFO] Graphed service example.com;Totals:load2 (0.05 sec)
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load3-month.png : opening '': No such file or directory
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load3-week.png : opening '': No such file or directory
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load3-day.png : opening '': No such file or directory
2013/09/10 13:45:10 [RRD ERROR] Unable to graph /var/www/html/munin/example.com/Totals/load3-year.png : opening '': No such file or directory

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RRD错误行表示无法创建图形（PNG），因为RRD中的某些内容无法找到（或打开）某些文件。这段代码表示它试图打开一个空白路径，但失败了

opening '': No such file or directory

perl错误提到了一个“未初始化值$filename”，考虑到RRD错误，这可能是问题的一部分。由于图形是从RRD文件生成的，因此可能的问题是系统无法找到您的RRD。因此，您需要检查有关指定RRD位置的所有内容是否正常

• 确认munin.conf中的dbdir指令正确
• 确认您的RRD存在于$dbdir/domain/path中
• 确认文件系统权限允许munin进程读写所述路径
• 确认主机树（在munin.conf中）对于您遇到问题的客户端是正确的

关于触发图的创建：munin服务器由cron驱动。您应该能够找到一个cron作业，您可以作为munin用户手动运行该作业，以触发该进程。我过去使用的RPM在/etc/cron.d/munin上有这个任务