日志系统Rsyslogd 7.4.1发布。2013-06-18 上个版本是2013-06-06的7.4.0。这是7.4系列第一个补丁版本。其他产品系列是6.6.0 6.4.2 5.10.1 增强了数率限制（缺省10分钟20000条）和几个Bug修正，现在Rsyslogd基本是rsyslogd标准了。
Version 7.4.1 [v7.4-stable] 2013-06-17
- imjournal: add ratelimiting capability
The original imjournal code did not support ratelimiting at all. We now have our own ratelimiter. This can mitigate against journal database corruption, when the journal re-sends old data. This is a current bug in systemd journal, but we won’t outrule this to happen in the future again. So it is better to have a safeguard in place. By default, we permit 20,000 messages witin 10 minutes. This may be a bit restrictive, but given the risk potential it seems reasonable.
Users requiring larger traffic flows can always adjust the value.
- bugfix: potential loop in rate limiting
if the message that tells about rate-limiting gets rate-limited itself, it will potentially create and endless loop
- bugfix: potential segfault in imjournal if journal DB is corrupted
- bugfix: prevent a segfault in imjournal if state file is not defined
- bugfix imzmq3: potential segfault on startup
if no problem happend at startup, everything went fine
Thanks to Hongfei Cheng and Brian Knox for the patch