我的整个mongo数据库似乎已经消失了（这是我的论文，这篇文章将在一个月内到期，非常绝望）。
我正在运行一些代码来获取推文（它已经工作了一个月而没有任何编辑）并使用pymongo写入mongo并且我收到此错误：
Traceback (most recent call last):
File "linguistic_feats.py", line 100, in <module>
write_all_user_tweets(conn, dataset)
File "linguistic_feats.py", line 89, in write_all_user_tweets
[get_all_tweets(user, conn) for user in parse]
File "linguistic_feats.py", line 89, in <listcomp>
[get_all_tweets(user, conn) for user in parse]
File "/Users/zeerakw/Documents/Education/Master/Projects/Gender/collect.py", line 58, in get_all_tweets
[conn.write_user_collection(tweet) for tweet in all_tweets]
File "/Users/zeerakw/Documents/Education/Master/Projects/Gender/collect.py", line 58, in <listcomp>
[conn.write_user_collection(tweet) for tweet in all_tweets]
File "/Users/zeerakw/Documents/Education/Master/Projects/Gender/db.py", line 49, in write_user_collection
table.update({'_id': tweet['id_str']}, {'$setOnInsert': tweet}, upsert = True)
File "/usr/local/lib/python3.5/site-packages/pymongo/collection.py", line 2230, in update
with self._socket_for_writes() as sock_info:
File "/usr/local/Cellar/python3/3.5.0/Frameworks/Python.framework/Versions/3.5/lib/python3.5/contextlib.py", line 59, in __enter__
return next(self.gen)
File "/usr/local/lib/python3.5/site-packages/pymongo/mongo_client.py", line 712, in _get_socket
server = self._get_topology().select_server(selector)
File "/usr/local/lib/python3.5/site-packages/pymongo/topology.py", line 141, in select_server
address))
File "/usr/local/lib/python3.5/site-packages/pymongo/topology.py", line 117, in select_servers
self._error_message(selector))
pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 61] Connection refused
我尝试访问mongo控制台但收到：
MongoDB shell version: 3.2.0
connecting to: test
2016-06-24T03:02:05.622+0200 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017 after 5000 milliseconds, giving up.
2016-06-24T03:02:05.623+0200 E QUERY [thread1] Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed :
connect@src/mongo/shell/mongo.js:224:14
@(connect):1:6
exception: connect failed
然后我手动调用了mongod，这使我可以访问控制台，但现在而不是让多个show dbs简单地给出：
$ mongo
MongoDB shell version: 3.2.0
connecting to: test
Server has startup warnings:
2016-06-24T03:07:43.638+0200 I CONTROL [initandlisten]
2016-06-24T03:07:43.638+0200 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. Number of files is 256, should be at least 1000
> use thesis
> show dbs
local 0.000GB
> show collections
>
日志文件：
2016-06-24T01:17:51.074+0200 E STORAGE [thread1] WiredTiger (24) [1466723871:73125][473:0x70000020a000], log-server: /usr/local/var/mongodb/journal: opendir: Too many open files
2016-06-24T01:17:51.074+0200 E STORAGE [thread1] WiredTiger (24) [1466723871:74536][473:0x70000020a000], log-server: dirlist journal prefix WiredTigerPreplog: Too many open files
2016-06-24T01:17:51.074+0200 E STORAGE [thread1] WiredTiger (24) [1466723871:74568][473:0x70000020a000], log-server: log pre-alloc server error: Too many open files
2016-06-24T01:17:51.074+0200 E STORAGE [thread1] WiredTiger (24) [1466723871:74588][473:0x70000020a000], log-server: log server error: Too many open files
2016-06-24T01:17:51.078+0200 W FTDC [ftdc] Uncaught exception in 'FileNotOpen Failed to open interim file /usr/local/var/mongodb/diagnostic.data/metrics.interim.temp' in full-time diagnostic data capture subsystem. Shutting down the full-time diagnostic data capture subsystem.
2016-06-24T01:18:14.124+0200 E STORAGE [thread2] WiredTiger (24) [1466723894:124125][473:0x700000393000], file:WiredTiger.wt, WT_SESSION.checkpoint: WiredTiger.turtle: fopen: Too many open files
2016-06-24T01:18:14.127+0200 E STORAGE [thread2] WiredTiger (24) [1466723894:126992][473:0x700000393000], checkpoint-server: checkpoint server error: Too many open files
2016-06-24T01:18:14.127+0200 E STORAGE [thread2] WiredTiger (-31804) [1466723894:127084][473:0x700000393000], checkpoint-server: the process must exit and restart: WT_PANIC: WiredTiger library panic
2016-06-24T01:18:14.127+0200 I - [thread2] Fatal Assertion 28558
2016-06-24T01:18:14.127+0200 I - [thread2]
***aborting after fassert() failure
2016-06-24T01:18:14.163+0200 F - [thread2] Got signal: 6 (Abort trap: 6).
0x10788d449 0x10788cddf 0x7fff8deb952a 0x7fff94e7ba26 0x7fff9ce4e6e7 0x10782d53a 0x1076679a1 0x10800e381 0x10800e4c9 0x10800ea74 0x107f9ac5d 0x7fff98d5199d 0x7fff98d5191a 0x7fff98d4f351
----- BEGIN BACKTRACE -----
{
"backtrace": [
{
"b": "106FA5000",
"o": "8E8449"
},
{
"b": "106FA5000",
"o": "8E7DDF"
},
{
"b": "7FFF8DEB7000",
"o": "252A"
},
{
"b": "7FFF94E79000",
"o": "2A26"
},
{
"b": "7FFF9CDF0000",
"o": "5E6E7"
},
{
"b": "106FA5000",
"o": "88853A"
},
{
"b": "106FA5000",
"o": "6C29A1"
},
{
"b": "106FA5000",
"o": "1069381"
},
{
"b": "106FA5000",
"o": "10694C9"
},
{
"b": "106FA5000",
"o": "1069A74"
},
{
"b": "106FA5000",
"o": "FF5C5D"
},
{
"b": "7FFF98D4E000",
"o": "399D"
},
{
"b": "7FFF98D4E000",
"o": "391A"
},
{
"b": "7FFF98D4E000",
"o": "1351"
}
],
"processInfo": {
"mongodbVersion": "3.2.0",
"gitVersion": "45d947729a0315accb6d4f15a6b06be6d9c19fe7",
"compiledModules": [
],
"uname": {
"sysname": "Darwin",
"release": "15.5.0",
"version": "Darwin Kernel Version 15.5.0: Tue Apr 19 18:36:36 PDT 2016; root:xnu-3248.50.21~8\/RELEASE_X86_64",
"machine": "x86_64"
},
"somap": [
{
"path": "\/usr\/local\/opt\/mongodb\/bin\/mongod",
"machType": 2,
"b": "106FA5000",
"buildId": "A553ECE2755B341A850927E8DEE071E3"
},
{
"path": "\/usr\/lib\/libSystem.B.dylib",
"machType": 6,
"b": "7FFF92227000",
"buildId": "C5D09FE1CC70383EAC2718602F2EDEC4"
},
{
"path": "\/usr\/lib\/libc++.1.dylib",
"machType": 6,
"b": "7FFF9112A000",
"buildId": "8FC3D139805534989AC56467CB7F4D14"
},
{
"path": "\/usr\/lib\/system\/libcache.dylib",
"machType": 6,
"b": "7FFF9ACA9000",
"buildId": "9548AAE92AB735259ECEA2A7C4688447"
},
{
"path": "\/usr\/lib\/system\/libcommonCrypto.dylib",
"machType": 6,
"b": "7FFF8B009000",
"buildId": "9373226134B43914B7A290A81A182DBA"
},
{
"path": "\/usr\/lib\/system\/libcompiler_rt.dylib",
"machType": 6,
"b": "7FFF9DD3D000",
"buildId": "A13ECF69F59F38AE86097B731450FBCD"
},
{
"path": "\/usr\/lib\/system\/libcopyfile.dylib",
"machType": 6,
"b": "7FFF8E288000",
"buildId": "A48637BCF3F234F2BB684C65FD012832"
},
{
"path": "\/usr\/lib\/system\/libcorecrypto.dylib",
"machType": 6,
"b": "7FFF9F808000",
"buildId": "B5C05FD7A540345A87BF8E41848A3C17"
},
{
"path": "\/usr\/lib\/system\/libdispatch.dylib",
"machType": 6,
"b": "7FFF8BEA7000",
"buildId": "C749985761A53D7DA5EA65DCC8C3DF92"
},
{
"path": "\/usr\/lib\/system\/libdyld.dylib",
"machType": 6,
"b": "7FFF8B915000",
"buildId": "CC088C2AD40733E7A6B6B06E0D4AD999"
},
{
"path": "\/usr\/lib\/system\/libkeymgr.dylib",
"machType": 6,
"b": "7FFF9B28B000",
"buildId": "8371CE545FDD3CE9B3DFE98C761B6FE0"
},
{
"path": "\/usr\/lib\/system\/liblaunch.dylib",
"machType": 6,
"b": "7FFF92532000",
"buildId": "834ED60551143641AA4DECF31B801C50"
},
{
"path": "\/usr\/lib\/system\/libmacho.dylib",
"machType": 6,
"b": "7FFF92499000",
"buildId": "318264FA58F139D882851F6254EE410E"
},
{
"path": "\/usr\/lib\/system\/libquarantine.dylib",
"machType": 6,
"b": "7FFF8C27F000",
"buildId": "0F4169F00C843A25B3AEE47B3586D908"
},
{
"path": "\/usr\/lib\/system\/libremovefile.dylib",
"machType": 6,
"b": "7FFF8DEC0000",
"buildId": "552EF39E14D7363E90594565AC2F894E"
},
{
"path": "\/usr\/lib\/system\/libsystem_asl.dylib",
"machType": 6,
"b": "7FFF8AFB5000",
"buildId": "41F8E11F1BD03F1DBA3AAA1577ED98A9"
},
{
"path": "\/usr\/lib\/system\/libsystem_blocks.dylib",
"machType": 6,
"b": "7FFF91908000",
"buildId": "1244D9D5F6AA35BBB30786851C24B8E5"
},
{
"path": "\/usr\/lib\/system\/libsystem_c.dylib",
"machType": 6,
"b": "7FFF9CDF0000",
"buildId": "B552D565B7983B9BAE63F623B42A5F01"
},
{
"path": "\/usr\/lib\/system\/libsystem_configuration.dylib",
"machType": 6,
"b": "7FFF8E876000",
"buildId": "3DEB7DF9680437E1BC830166882FF0FF"
},
{
"path": "\/usr\/lib\/system\/libsystem_coreservices.dylib",
"machType": 6,
"b": "7FFF8B8FE000",
"buildId": "1B3F5AFCFFCD3ECB8B9A5538366FB20D"
},
{
"path": "\/usr\/lib\/system\/libsystem_coretls.dylib",
"machType": 6,
"b": "7FFF9CDBC000",
"buildId": "C90DAE384082381CA1852A6A8B677628"
},
{
"path": "\/usr\/lib\/system\/libsystem_dnssd.dylib",
"machType": 6,
"b": "7FFF92CDD000",
"buildId": "4D10E12B59B5386F82DA326F18028F0A"
},
{
"path": "\/usr\/lib\/system\/libsystem_info.dylib",
"machType": 6,
"b": "7FFF98C85000",
"buildId": "FAA9226D64DE3769A6D86CABA4B7FF4D"
},
{
"path": "\/usr\/lib\/system\/libsystem_kernel.dylib",
"machType": 6,
"b": "7FFF98CDF000",
"buildId": "78E54D59D2B03F549A4A0A68D671F253"
},
{
"path": "\/usr\/lib\/system\/libsystem_m.dylib",
"machType": 6,
"b": "7FFF9F7D7000",
"buildId": "08E1A4B264483DFEA58CACC7335BE7E4"
},
{
"path": "\/usr\/lib\/system\/libsystem_malloc.dylib",
"machType": 6,
"b": "7FFF94E79000",
"buildId": "5748E8B2F81C34C68B13456213127678"
},
{
"path": "\/usr\/lib\/system\/libsystem_network.dylib",
"machType": 6,
"b": "7FFF9A5E8000",
"buildId": "B52DAB7392DC3DA7B9F4B899D66445C1"
},
{
"path": "\/usr\/lib\/system\/libsystem_networkextension.dylib",
"machType": 6,
"b": "7FFF97679000",
"buildId": "66095DC7653938F295EE458F15F6D014"
},
{
"path": "\/usr\/lib\/system\/libsystem_notify.dylib",
"machType": 6,
"b": "7FFF9942C000",
"buildId": "D48BDE340F7E34CAA0FFC578E39987CC"
},
{
"path": "\/usr\/lib\/system\/libsystem_platform.dylib",
"machType": 6,
"b": "7FFF8DEB7000",
"buildId": "29A905EF67773C3382B06C3A88C4BA15"
},
{
"path": "\/usr\/lib\/system\/libsystem_pthread.dylib",
"machType": 6,
"b": "7FFF98D4E000",
"buildId": "3DD1EF4C1D1B3ABF8CC6B3B1CEEE9559"
},
{
"path": "\/usr\/lib\/system\/libsystem_sandbox.dylib",
"machType": 6,
"b": "7FFF921C2000",
"buildId": "150A9D3DF69E32F78C7B8E72CAAFF7E4"
},
{
"path": "\/usr\/lib\/system\/libsystem_secinit.dylib",
"machType": 6,
"b": "7FFF95103000",
"buildId": "32B1A8C6DC843F4FB8CE9A52B47C3E6B"
},
{
"path": "\/usr\/lib\/system\/libsystem_trace.dylib",
"machType": 6,
"b": "7FFF993CB000",
"buildId": "F00E92E4DBDA3749B5B30C3FBBABA1CB"
},
{
"path": "\/usr\/lib\/system\/libunc.dylib",
"machType": 6,
"b": "7FFF9ECDF000",
"buildId": "DDB1E947C77533B8B46163E5EB698F0E"
},
{
"path": "\/usr\/lib\/system\/libunwind.dylib",
"machType": 6,
"b": "7FFF8B125000",
"buildId": "F6EB48E54D12359AAB54C937FBBE9043"
},
{
"path": "\/usr\/lib\/system\/libxpc.dylib",
"machType": 6,
"b": "7FFFA10B6000",
"buildId": "54D1328E054E3DAA89E2375722F9D18F"
},
{
"path": "\/usr\/lib\/libobjc.A.dylib",
"machType": 6,
"b": "7FFF9E13F000",
"buildId": "7489D2D61EFD3414B18D2AECCCC90286"
},
{
"path": "\/usr\/lib\/libauto.dylib",
"machType": 6,
"b": "7FFF9B6C1000",
"buildId": "999E610F41FC32A3ADCA5EC049B65DFB"
},
{
"path": "\/usr\/lib\/libc++abi.dylib",
"machType": 6,
"b": "7FFF8E88B000",
"buildId": "DCCC81773D0935BC97842A04FEC4C71B"
},
{
"path": "\/usr\/lib\/libDiagnosticMessagesClient.dylib",
"machType": 6,
"b": "7FFF96E9C000",
"buildId": "4243B6B421E9355B9C5A95A216233B96"
}
]
}
}
[UPDATE]
现在守护程序甚至不再开始了。
2016-06-24T10:05:32.986+0200 I - [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2016-06-24T10:05:32.986+0200 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=9G,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),
2016-06-24T10:05:33.226+0200 E STORAGE [initandlisten] WiredTiger (-31803) [1466755533:226568][6493:0x7fff75e89000], txn-recover: Recovery failed: WT_NOTFOUND: item not found
2016-06-24T10:05:33.248+0200 I - [initandlisten] Assertion: 28595:-31803: WT_NOTFOUND: item not found
2016-06-24T10:05:33.249+0200 I STORAGE [initandlisten] exception in initAndListen: 28595 -31803: WT_NOTFOUND: item not found, terminating
2016-06-24T10:05:33.249+0200 I CONTROL [initandlisten] dbexit: rc: 100
答案 0 :(得分：5)
在手动重启时，看起来您正在运行具有所有默认值的mongodb（dbpath是/ data / db，而原始ulimit错误是记录/ usr / local / var / mongodb）。
哪条路径应该是正确的？
如果使用错误的dbpath手动运行它，您将看到一个空数据库。
然后，如果你没有干净地停止这个过程（例如kill-9），那可能已经破坏了这个实例（希望在一个不正确的dbpath上）。
首先，获取/ usr / local / var / mongodb路径的副本。
然后尝试使用正确的dbpath，user，permissions和ulimit设置重启mongod进程（早期的/etc/security/limits.conf建议在Mac上可能没用）。
如果这些都没有帮助，那么可以先尝试升级（3.2.0很旧）。