mysql_install_db 等效於 MongoDB？錯誤“句柄打開：打開：打開的文件太多”

開發人員創建了數百萬個集合和索引，這意味著數百萬個collection-*文件index-*。

我在 mongod 3.2.6 的這個副本集（3 節點）上沒有管理登錄名（數據庫使用者）。我希望僅使用 Linux 命令初始化 MongoDB 數據目錄。在 MariaDB 中有mysql_install_db命令。

錯誤資訊

2017-01-14T05:25:38.674+0000 E STORAGE  [thread2] WiredTiger (24) [1484371538:674300][60390:0x7fcc4bc69700], file:WiredTiger.wt, WT_SESSION.checkpoint: /var/vcap/store/mongodb-data/example/WiredTiger.turtle: handle-open: open: Too many open files
2017-01-14T05:25:38.737+0000 I -        [conn2] Assertion: 13538:couldn't open [/proc/60390/stat] errno:24 Too many open files
2017-01-14T05:25:38.738+0000 I NETWORK  [conn2] end connection 127.0.0.1:39289 (12 connections now open)
2017-01-14T05:25:38.738+0000 I NETWORK  [conn6] end connection 127.0.0.1:39347 (12 connections now open)
2017-01-14T05:25:38.738+0000 I NETWORK  [conn9] end connection 127.0.0.1:39453 (12 connections now open)
2017-01-14T05:25:38.769+0000 I COMMAND  [conn10] command example command: collStats { collstats: "090f42d6-5368-46c6-80
ca-2a8e7e380693" } keyUpdates:0 writeConflicts:0 numYields:0 reslen:9450 locks:{ Global: { acquireCount: { r: 2 } }, Database: { acquireCount: { r: 1 } }, Collection: { acquireCount: { r:
1 } } } protocol:op_query 161ms
2017-01-14T05:25:38.783+0000 E STORAGE  [thread2] WiredTiger (24) [1484371538:783882][60390:0x7fcc4bc69700], checkpoint-server: checkpoint server error: Too many open files
2017-01-14T05:25:38.783+0000 E STORAGE  [thread2] WiredTiger (-31804) [1484371538:783983][60390:0x7fcc4bc69700], checkpoint-server: the process must exit and restart: WT_PANIC: WiredTiger
library panic
2017-01-14T05:25:38.784+0000 I -        [thread2] Fatal Assertion 28558
2017-01-14T05:25:38.784+0000 I -        [thread2]

***aborting after fassert() failure


2017-01-14T05:25:38.784+0000 I -        [WTJournalFlusher] Fatal Assertion 28559
2017-01-14T05:25:38.784+0000 I -        [WTJournalFlusher]

***aborting after fassert() failure


2017-01-14T05:25:38.789+0000 F -        [thread2] Got signal: 6 (Aborted).

0x1383b32 0x1382c89 0x1383492 0x7fcc50af2330 0x7fcc50753c37 0x7fcc50757028 0x130dba2 0x1109083 0x1ae49dc 0x1ae4e9d 0x1ae5284 0x1a69dbb 0x7fcc50aea184 0x7fcc5081737d
----- BEGIN BACKTRACE -----
{"backtrace":[{"b":"400000","o":"F83B32","s":"_ZN5mongo15printStackTraceERSo"},{"b":"400000","o":"F82C89"},{"b":"400000","o":"F83492"},{"b":"7FCC50AE2000","o":"10330"},{"b":"7FCC5071D000","o":"36C37","s":"gsignal"},{"b":"7FCC5071D000","o":"3A028","s":"abort"},{"b":"400000","o":"F0DBA2","s":"_ZN5mongo13fassertFailedEi"},{"b":"400000","o":"D09083"},{"b":"400000","o":"16E49DC"
,"s":"__wt_eventv"},{"b":"400000","o":"16E4E9D","s":"__wt_err"},{"b":"400000","o":"16E5284","s":"__wt_panic"},{"b":"400000","o":"1669DBB"},{"b":"7FCC50AE2000","o":"8184"},{"b":"7FCC5071D00
0","o":"FA37D","s":"clone"}],"processInfo":{ "mongodbVersion" : "3.2.6", "gitVersion" : "05552b562c7a0b3143a729aaa0838e558dc49b25", "compiledModules" : [ "enterprise" ], "uname" : { "sysna
me" : "Linux", "release" : "3.19.0-64-generic", "version" : "#72~14.04.1-Ubuntu SMP Fri Jun 24 17:59:48 UTC 2016", "machine" : "x86_64" }, "somap" : [ { "elfType" : 2, "b" : "400000", "bui
ldId" : "88B6197786F38A44F8D924B095DAD84A9E55F2C8" }, { "b" : "7FFF49FFB000", "elfType" : 3, "buildId" : "C89BD46B7CFC47F3E55EF539B3FAF8E450562F6A" }, { "b" : "7FCC52C73000", "path" : "/us
r/lib/x86_64-linux-gnu/libsasl2.so.2", "elfType" : 3, "buildId" : "666B276BD134B0E9579B67D4EE333F2D0FB813CD" }, { "b" : "7FCC52806000", "path" : "/usr/lib/x86_64-linux-gnu/libnetsnmpmibs.s
o.30", "elfType" : 3, "buildId" : "4630C89B4E7BCCAD8B1B4FFB508962666D6663C2" }, { "b" : "7FCC525F7000", "path" : "/usr/lib/x86_64-linux-gnu/libsensors.so.4", "elfType" : 3, "buildId" : "85
9FDBFDD82F0EFDEB44A433D9D8020A232A35E2" }, { "b" : "7FCC523F3000", "path" : "/lib/x86_64-linux-gnu/libdl.so.2", "elfType" : 3, "buildId" : "DA9B8C234D0FE9FD8CAAC8970A7EC1B6C8F6623F" }, { "
b" : "7FCC5218A000", "path" : "/usr/lib/x86_64-linux-gnu/libnetsnmpagent.so.30", "elfType" : 3, "buildId" : "9E02A41B22FEB1F704B60BA109EC5785131A5090" }, { "b" : "7FCC51F80000", "path" : "
/lib/x86_64-linux-gnu/libwrap.so.0", "elfType" : 3, "buildId" : "54FCBC5B0F994A13A9B0EAD46F23E7DA7F7FE75B" }, { "b" : "7FCC51CA6000", "path" : "/usr/lib/x86_64-linux-gnu/libnetsnmp.so.30",
"elfType" : 3, "buildId" : "E9B667050A5D6C0C4D58826C32DEEAF38B16EBAA" }, { "b" : "7FCC518CA000", "path" : "/lib/x86_64-linux-gnu/libcrypto.so.1.0.0", "elfType" : 3, "buildId" : "AAE7CFF83
51B730830BDBCE0DCABBE06574B7144" }, { "b" : "7FCC51683000", "path" : "/usr/lib/x86_64-linux-gnu/libgssapi_krb5.so.2", "elfType" : 3, "buildId" : "55F72A23CB9C0F7529F0E0BEE43981864B74C4FE"
}, { "b" : "7FCC5137D000", "path" : "/lib/x86_64-linux-gnu/libm.so.6", "elfType" : 3, "buildId" : "D144258E614900B255A31F3FD2283A878670D5BC" }, { "b" : "7FCC5111E000", "path" : "/lib/x86_6
4-linux-gnu/libssl.so.1.0.0", "elfType" : 3, "buildId" : "74864DB9D5F69D39A67E4755012FB6573C469B3D" }, { "b" : "7FCC50F16000", "path" : "/lib/x86_64-linux-gnu/librt.so.1", "elfType" : 3, "
buildId" : "E2A6DD5048A0A051FD61043BDB69D8CC68192AB7" }, { "b" : "7FCC50D00000", "path" : "/lib/x86_64-linux-gnu/libgcc_s.so.1", "elfType" : 3, "buildId" : "36311B4457710AE5578C4BF00791DED
7359DBB92" }, { "b" : "7FCC50AE2000", "path" : "/lib/x86_64-linux-gnu/libpthread.so.0", "elfType" : 3, "buildId" : "31E9F21AE8C10396171F1E13DA15780986FA696C" }, { "b" : "7FCC5071D000", "pa
th" : "/lib/x86_64-linux-gnu/libc.so.6", "elfType" : 3, "buildId" : "CF699A15CAAE64F50311FC4655B86DC39A479789" }, { "b" : "7FCC52E8E000", "path" : "/lib64/ld-linux-x86-64.so.2", "elfType"
: 3, "buildId" : "D0F537904076D73F29E4A37341F8A449E2EF6CD0" }, { "b" : "7FCC50394000", "path" : "/usr/lib/libperl.so.5.18", "elfType" : 3, "buildId" : "73F1E3843DAEC3F6114D138BF002C0A122CC
3707" }, { "b" : "7FCC5017A000", "path" : "/lib/x86_64-linux-gnu/libnsl.so.1", "elfType" : 3, "buildId" : "32E56CFD30B8B4FCD8AA69CED88A9782814A9D18" }, { "b" : "7FCC4FEAF000", "path" : "/u
sr/lib/x86_64-linux-gnu/libkrb5.so.3", "elfType" : 3, "buildId" : "77287B3AF8DD293D7367EEF27C652C04353752EC" }, { "b" : "7FCC4FC80000", "path" : "/usr/lib/x86_64-linux-gnu/libk5crypto.so.3
", "elfType" : 3, "buildId" : "49E3D743C2B3741229AD3892B22C4794C646E1F2" }, { "b" : "7FCC4FA7C000", "path" : "/lib/x86_64-linux-gnu/libcom_err.so.2", "elfType" : 3, "buildId" : "8D56938ABD
6462C4C29822D8E48A131BE1C61F6A" }, { "b" : "7FCC4F871000", "path" : "/usr/lib/x86_64-linux-gnu/libkrb5support.so.0", "elfType" : 3, "buildId" : "0B3ABC152466DE0C69954405A0E980B6E0D4B78F" }
, { "b" : "7FCC4F638000", "path" : "/lib/x86_64-linux-gnu/libcrypt.so.1", "elfType" : 3, "buildId" : "FDB9E0552092EB7559F27C7A9915665408D930F0" }, { "b" : "7FCC4F434000", "path" : "/lib/x8
6_64-linux-gnu/libkeyutils.so.1", "elfType" : 3, "buildId" : "0F03635F97B93D3DACD84F0ED363C56BD266044F" }, { "b" : "7FCC4F219000", "path" : "/lib/x86_64-linux-gnu/libresolv.so.2", "elfType

errno:24 打開的文件太多

此錯誤表明該mongod程序無法再打開任何文件句柄，因為已達到配置的作業系統資源限制（ulimit在類似 UNIX 的作業系統上，如 Linux）已達到。這些ulimit設置旨在限制單個使用者或程序消耗過多的系統資源。

驗證和增加 ulimit 是 MongoDB 之外的一項管理任務。有關更多資訊，請參閱： MongoDB 手冊中的UNIX ulimit 設置。

我希望僅使用 Linux 命令初始化 MongoDB 數據目錄。在 MariaDB 中有 mysql_install_db 命令。

mongod在 MongoDB 3.4 中，除了在使用適當的配置文件之前從另一個部署複製數據文件之外，沒有等效於“初始化”MongoDB 數據目錄的方法。也沒有類似於 的標准設置腳本mysql_install_db，它執行準備任務，例如創建模式和使用者帳戶。

MongoDB 生產部署通常配置為副本集或分片集群，因此設置需要整體部署的上下文。部署自動化的典型解決方案包括 MongoDB Cloud Manager (SaaS) 和 MongoDB Ops Manager（本地）。使用 MongoDB Cloud Manager 配置的新 AWS 環境將根據 MongoDB 手冊中的生產說明包括 O/S 設置。

開發人員創建了數百萬個集合和索引，這意味著數百萬個 collection-* 文件 index-* 。

您可以增加ulimit設置以嘗試支持此案例，但對於數百萬個集合，您可能會遇到其他性能問題（例如，命令listDatabases必須迭代數百萬個文件的統計資訊）。除非意外創建了數百萬個集合和索引，否則我會諮詢開發人員並建議他們重新考慮他們的數據模型。

引用自：https://dba.stackexchange.com/questions/161056