Insufficient free space for journal files
前两天请假了，公司的很多app突然挂掉了，说是mongodb莫名的挂掉了，赶紧进去看了看日志：
2015-08-31T14:06:20.070+0800 [initandlisten] ERROR: Insufficient free space for journal files 2015-08-31T14:06:20.070+0800 [initandlisten] Please make at least 3379MB available in /data/mongodb/data/journal or use --smallfiles 2015-08-31T14:06:20.070+0800 [initandlisten] 2015-08-31T14:06:20.070+0800 [initandlisten] exception in initAndListen: 15926 Insufficient free space for journals, terminating 2015-08-31T14:06:20.070+0800 [initandlisten] dbexit: 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: going to close listening sockets... 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: going to flush diaglog... 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: going to close sockets... 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: waiting for fs preallocator... 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: lock for final commit... 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: final commit... 2015-08-31T14:06:20.071+0800 [initandlisten] shutdown: closing all files... 2015-08-31T14:06:20.071+0800 [initandlisten] closeAllFiles() finished 2015-08-31T14:06:20.071+0800 [initandlisten] journalCleanup... 2015-08-31T14:06:20.071+0800 [initandlisten] removeJournalFiles 2015-08-31T14:06:20.075+0800 [initandlisten] shutdown: removing fs lock... 2015-08-31T14:06:20.075+0800 [initandlisten] dbexit: really exiting now
查了查，原来是因为mongodb对硬盘的增长是以倍数增长的，每次增加2G，查了查服务器的硬盘空间，我去，剩下1.8G了
看到错误日志中解决的办法是使用 --smallfiles参数，然后我就试了试
./mongod --dbpath /data/mongodb/data --logpath /data/mongodb/mongodb.log --smallfiles
好是好了，可是一直在输出log，只要一终止，mongodb就又挂了，然后看了看mongodb的参数。找到了一个 --fork ，创建一个子进程参数。好的
./mongod --dbpath /data/mongodb/data --logpath /data/mongodb/mongodb.log --smallfiles --fork
搞定~~
正文到此结束
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文章和留言都翻到11页了 没有OOM
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朋友，翻页到11页，及以后，会出现OOM，无法访问
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搞个gitee的项目
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版本号是多少，你可以下载哪个代码仓库，jdk选1.8 直接跑就行
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