更新时间:2021-12-25 GMT+08:00
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日志配置

默认的DPDK日志是输出到dmesg中,为了方便定位问题,以下介绍相关的配置文件,将日志输出到OVS日志中,并增加一些日志控制手段。可以根据实际需求配置以下内容。

  1. 创建DPDK日志目录。

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    mkdir -p /var/log/dpdk
    

  2. 配置DPDK的rsyslog配置文件。

    1. “/etc/rsyslog.d”目录中新增配置文件dpdk.conf。
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      vim /etc/rsyslog.d/dpdk.conf
      
    2. 输入以下内容:
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      #DPDK_LOG_TAG "LibLogTag_DPDK"
      template(name="template-dpdk" type="string" string="%TIMESTAMP:::date-rfc3339%|%syslogseverity-text%|%programname%[%PROCID%]|%$!msg_pre%%$!msg_after%\n")
      $outchannel dpdk,/var/log/dpdk/dpdk.log,2097152,/opt/esyslog/esyslog_log_rsyslog_dump.sh /var/log/dpdk/dpdk.log dpdk
      
      if ($msg contains "LibLogTag_DPDK" and $syslogseverity <= 7 ) then {
      set $!msg_pre = field($msg,"LibLogTag_DPDK|",1);
      set $!msg_after = field($msg,"LibLogTag_DPDK|",2);
      :omfile:$dpdk;template-dpdk
      stop
      }
      
      
      if ($msg contains "LibLogTag_DPDK" and $syslogseverity > 7 ) then {
      /dev/null
      stop
      }
      

  3. 配置DPDK日志打包回卷文件。

    1. 新增“/etc/logrotate.d/dpdk”文件。
      vim /etc/logrotate.d/dpdk
    2. 输入以下内容:
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      /var/log/dpdk/dpdk.log {
      hourly
      compress
      missingok
      notifempty
      maxsize 2048k
      rotate 50
      copytruncate
      }
      

  4. 配置OVS日志打包回卷文件。

    1. 新增“/etc/logrotate.d/openvswitch”文件。
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      vim /etc/logrotate.d/openvswitch
      
    2. 输入以下内容:
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      # Copyright (C) 2009, 2010, 2011, 2012 Nicira, Inc.
      #
      # Copying and distribution of this file, with or without modification,
      # are permitted in any medium without royalty provided the copyright
      # notice and this notice are preserved.  This file is offered as-is,
      # without warranty of any kind.
      
      /var/log/openvswitch/*.log {
          su root root
          hourly
          compress
          missingok
          maxsize 2048k
          rotate 50
          sharedscripts
          postrotate
              # Tell Open vSwitch daemons to reopen their log files
              if [ -d /var/run/openvswitch ]; then
                  for ctl in /var/run/openvswitch/*.ctl; do
                      ovs-appctl -t "$ctl" vlog/reopen 2>/dev/null || :
                  done
              fi36
          endscript
      }
      

  5. 配置日志定时处理文件。

    1. “/etc/cron.hourly”路径下新增ovslogrotat文件。
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      vim /etc/cron.hourly/ovslogrotate
      
    2. 输入以下内容:
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      #!/bin/sh
      
      /usr/sbin/logrotate -s /var/lib/logrotate/logrotate.status /etc/logrotate.d/dpdk
      EXITVALUE=$?
      if [ $EXITVALUE != 0 ]; then
          /usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"
      fi
      
      /usr/sbin/logrotate -s /var/lib/logrotate/logrotate.status /etc/logrotate.d/openvswitch
      EXITVALUE=$?
      if [ $EXITVALUE != 0 ]; then
          /usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"
      fi
      
      exit 0
      
    3. 修改文件权限,增加执行权限和只读属性。
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      chmod 0644 /etc/cron.hourly/ovslogrotate
      chmod +x /etc/cron.hourly/ovslogrotate
      

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