管理日志

Redis Enterprise 在服务器上附带了一组日志，可通过用户界面使用，以帮助用户调查在服务器上执行的作并解决问题。

将日志发送到远程日志记录服务器

默认情况下，Redis Enterprise 将日志发送到 syslog。您可以通过配置 syslog 将这些日志发送到远程日志记录服务器。

为此，请修改作系统上的 syslog 或 rsyslog 配置，以在$logdir目录 （/var/opt/redislabs/log在默认安装中）连接到您选择的远程监控服务器。有关更多详细信息，请参阅 rsyslog 日志记录。

日志轮换

Redis Enterprise Software 的作业计划程序运行logrotate每 5 分钟检查一次存储在作系统上的日志，并根据日志轮换配置轮换日志。您可以在以下位置找到日志轮换配置文件$pkgconfdir/logrotate.conf从 Redis Enterprise Software 版本 7.2 （pkgconfdir是/opt/redislabs/config默认情况下，但可以在自定义安装中更改）。

默认情况下，当日志超过 200 MB 时，将进行日志轮换。我们建议将日志文件发送到远程日志记录服务器，以便您可以更有效地维护它们。

Redis Enterprise Software 默认启用以下日志轮换策略，但您可以根据需要对其进行修改。

/var/opt/redislabs/log/*.log {
    su ${osuser} ${osgroup}
    size 200M
    missingok
    copytruncate
    # 2000 is logrotate's way of saying 'infinite'
    rotate 2000
    maxage 7
    compress
    notifempty
    nodateext
    nosharedscripts
    prerotate
        # copy cluster_wd log to another file that will have longer retention
        if [ "\$1" = "/var/opt/redislabs/log/cluster_wd.log" ]; then
        	cp -p /var/opt/redislabs/log/cluster_wd.log /var/opt/redislabs/log/cluster_wd.log.long_retention
        fi
    endscript
}
/var/opt/redislabs/log/cluster_wd.log.long_retention {
    su ${osuser} ${osgroup}
    daily
    missingok
    copytruncate
    rotate 30
    compress
    notifempty
    nodateext
}

• /var/opt/redislabs/log/*.log - logrotate checks the files under the $logdir directory (/var/opt/redislabs/log/) and rotates any files that end with the extension .log.

• /var/opt/redislabs/log/cluster_wd.log.long_retention - The contents of cluster_wd.log is copied to cluster_wd.log.long_retention before rotation, and this copy is kept for longer than normal (30 days).

• size 200M - Rotate log files that exceed 200 MB.

• missingok - If there are missing log files, do nothing.

• copytruncate - Truncate the original log file to zero sizes after creating a copy.

• rotate 2000 - Keep up to 2000 (effectively infinite) log files.

• compress - gzip log files.

• maxage 7 - Keep the rotated log files for 7 days.

• notifempty - Don't rotate the log file if it is empty.