文件`/ 00000000000000000849.xlog`没有正确关闭

Question

当我尝试启动我的tarantool，看到在日志中的消息：

2016-03-28 17:42:14.813 [31296] main/101/ia.lua C> log level 4 
2016-03-28 17:42:14.999 [31296] main/101/ia.lua recovery.cc:211 W> file `./00000000000000000012.xlog` wasn't correctly closed 
2016-03-28 17:42:15.001 [31296] main/101/ia.lua recovery.cc:211 W> file `./00000000000000000118.xlog` wasn't correctly closed 
2016-03-28 17:42:15.002 [31296] main/101/ia.lua recovery.cc:211 W> file `./00000000000000000849.xlog` wasn't correctly closed 
2016-03-28 17:42:15.004 [31296] main/101/ia.lua recovery.cc:211 W> file `./00000000000000000849.xlog` wasn't correctly closed 

是什么意思？

Answer 1

此消息表示Tarantool没有在关机时写入文件标记的结尾，通常情况下它是这样。这可能发生在崩溃或硬重置之后，换句话说，任何一种不正常的服务器关闭。这样的信息是无害的，它警告你，自上次开始以来，最后一些交易可能未被刷新到WAL。