MongoDB停止不明原因

我在Ubuntu 14.04.4 上設置了MongoDB服務器，有時它的停止原因不明。你有什麼想法？MongoDB停止不明原因

您可以在啓動mongod實例之前和之後查看最近的日誌。

2016-10-12T08:47:32.223+0000 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker 
2016-10-12T08:47:32.222+0000 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/var/lib/mongodb/diagnostic.data' 
2016-10-12T08:47:31.727+0000 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=1G,session_max=20000,eviction=(threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0), 
2016-10-12T08:47:31.727+0000 W STORAGE [initandlisten] Recovering data from the last clean checkpoint. 
2016-10-12T08:47:31.727+0000 W - [initandlisten] Detected unclean shutdown - /var/lib/mongodb/mongod.lock is not empty. 
2016-10-12T08:47:31.727+0000 I - [initandlisten] Detected data files in /var/lib/mongodb created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'. 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1,server_ip", port: 27017 }, storage: { dbPath: "/var/lib/mongodb", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } } 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] target_arch: x86_64 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] distarch: x86_64 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] distmod: ubuntu1404 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] build environment: 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] modules: none 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] allocator: tcmalloc 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1f 6 Jan 2014 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] git version: 79d9b3ab5ce20f51c272b4411202710a082d0317 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] db version v3.2.10 
2016-10-12T08:47:31.700+0000 I CONTROL [initandlisten] MongoDB starting : pid=4487 port=27017 dbpath=/var/lib/mongodb 64-bit host=db-server 
2016-10-11T06:54:31.233+0000 I ACCESS [conn1] Successfully authenticated as principal agent on admin 
2016-10-11T06:54:29.641+0000 I ACCESS [conn6] Successfully authenticated as principal agent on admin

注：我沒有改變，除了綁定IP的配置文件什麼。

UPDATE

當我看到syslog文件;

Oct 11 02:54:38 db-server kernel: [] Out of memory: Kill process 26603 (mongod) score 687 or sacrifice child 
Oct 11 02:54:38 db-server kernel: [] init: mongod main process (26603) killed by KILL signal

來源

2016-10-12 Furkan yeşiloğlu

看起來在mongo日誌中沒有任何錯誤 - 您可以查看操作系統日誌（/ var/log/messages，/ var/log/syslog，journalctl mongo，具體取決於您的版本）並粘貼任何可能相關的東西？ –

@MattInnes我更新了這個問題。它看起來像記憶是問題。我如何設置mongodb的最大內存使用量？ –