數據庫錯誤MongoDB：消失的數據庫

啓動了大量的進程。然後重新啓動服務器，數據庫不見了。當我走進rockmongo時，我沒有看到舊的數據庫。有一個新的數據庫管理員，沒有更多。數據庫錯誤MongoDB：消失的數據庫

db.serverStatus() 
{ 
     "host" : "host", 
     "version" : "2.0.6", 
     "process" : "mongod", 
     "uptime" : 1041, 
     "uptimeEstimate" : 1037, 
     "localTime" : ISODate("2012-07-26T08:20:40.729Z"), 
     "globalLock" : { 
       "totalTime" : 1041408230, 
       "lockTime" : 330771, 
       "ratio" : 0.0003176189610101314, 
       "currentQueue" : { 
         "total" : 0, 
         "readers" : 0, 
         "writers" : 0 
       }, 
       "activeClients" : { 
         "total" : 0, 
         "readers" : 0, 
         "writers" : 0 
       } 
     }, 
     "mem" : { 
       "bits" : 64, 
       "resident" : 19, 
       "virtual" : 114, 
       "supported" : true, 
       "mapped" : 0, 
       "mappedWithJournal" : 0 
     }, 
     "connections" : { 
       "current" : 11, 
       "available" : 808 
     }, 
     "extra_info" : { 
       "note" : "fields vary by platform", 
       "heap_usage_bytes" : 3623360, 
       "page_faults" : 2 
     }, 
     "indexCounters" : { 
       "btree" : { 
         "accesses" : 0, 
         "hits" : 0, 
         "misses" : 0, 
         "resets" : 0, 
         "missRatio" : 0 
       } 
     }, 
     "backgroundFlushing" : { 
       "flushes" : 17, 
       "total_ms" : 0, 
       "average_ms" : 0, 
       "last_ms" : 0, 
       "last_finished" : ISODate("2012-07-26T08:20:19.341Z") 
     }, 
     "cursors" : { 
       "totalOpen" : 0, 
       "clientCursors_size" : 0, 
       "timedOut" : 0 
     }, 
     "network" : { 
       "bytesIn" : 4429, 
       "bytesOut" : 14192, 
       "numRequests" : 56 
     }, 
     "opcounters" : { 
       "insert" : 0, 
       "query" : 22, 
       "update" : 0, 
       "delete" : 0, 
       "getmore" : 0, 
       "command" : 54 
     }, 
     "asserts" : { 
       "regular" : 0, 
       "warning" : 14, 
       "msg" : 0, 
       "user" : 0, 
       "rollovers" : 0 
     }, 
     "writeBacksQueued" : false, 
     "dur" : { 
       "commits" : 29, 
       "journaledMB" : 0, 
       "writeToDataFilesMB" : 0, 
       "compression" : 0, 
       "commitsInWriteLock" : 0, 
       "earlyCommits" : 0, 
       "timeMs" : { 
         "dt" : 3045, 
         "prepLogBuffer" : 0, 
         "writeToJournal" : 0, 
         "writeToDataFiles" : 0, 
         "remapPrivateView" : 0 
       } 
     }, 
     "ok" : 1 
}

mongodb.log

{ 
      "assertion" : "file /var/lib/mongodb/baza.4 open/create failed in create                    PrivateMap (look in log for more information)", 
      "assertionCode" : 13636, 
      "errmsg" : "db assertion failure", 
      "ok" : 0 
    } 

Thu Jul 26 12:05:44 [conn5] ERROR: mmap private failed with out of memory. (64 bit build) 
Thu Jul 26 12:05:44 [conn5] Assertion: 13636:file /var/lib/mongodb/baza.4 open/create failed in createPrivateMap (look in log for more information) 
0x5848a2 0x75dcea 0x75e8e3 0x8a8c3b 0x8a0962 0x8a1d03 0x8a1fda 0x8a2835 0x898619 0x898ea3 0x982bd5 0x97c4f4 0x97dbfd 0x940f05 0x943a30 0x889107 0x88dcd9 0xaa0bc8 0x6389f7 0x2b76122978ca 
/usr/bin/mongod(_ZN5mongo11msgassertedEiPKc+0x112) [0x5848a2] 
/usr/bin/mongod(_ZN5mongo8MongoMMF13finishOpeningEv+0x1ca) [0x75dcea] 
/usr/bin/mongod(_ZN5mongo8MongoMMF6createESsRyb+0x63) [0x75e8e3] 
/usr/bin/mongod(_ZN5mongo13MongoDataFile4openEPKcib+0x14b) [0x8a8c3b] 
/usr/bin/mongod(_ZN5mongo8Database7getFileEiib+0x102) [0x8a0962] 
/usr/bin/mongod(_ZN5mongo8Database12openAllFilesEv+0x33) [0x8a1d03] 
/usr/bin/mongod(_ZN5mongo8DatabaseC1EPKcRbRKSs+0x1ca) [0x8a1fda] 
/usr/bin/mongod(_ZN5mongo14DatabaseHolder11getOrCreateERKSsS2_Rb+0x605) [0x8a2835] 
/usr/bin/mongod(_ZN5mongo6Client7Context11_finishInitEb+0x2e9) [0x898619] 
/usr/bin/mongod(_ZN5mongo6Client7ContextC1ERKSsSsPNS_9mongolockEb+0x73) [0x898ea3] 
/usr/bin/mongod(_ZN5mongo16CmdListDatabases3runERKSsRNS_7BSONObjEiRSsRNS_14BSONObjBuilderEb+0x215) [0x982bd5] 
/usr/bin/mongod(_ZN5mongo11execCommandEPNS_7CommandERNS_6ClientEiPKcRNS_7BSONObjERNS_14BSONObjBuilderEb+0x6c4) [0x97c4f4] 
/usr/bin/mongod(_ZN5mongo12_runCommandsEPKcRNS_7BSONObjERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x6fd) [0x97dbfd] 
/usr/bin/mongod(_ZN5mongo11runCommandsEPKcRNS_7BSONObjERNS_5CurOpERNS_11_BufBuilderINS_16TrivialAllocatorEEERNS_14BSONObjBuilderEbi+0x35) [0x940f05] 
/usr/bin/mongod(_ZN5mongo8runQueryERNS_7MessageERNS_12QueryMessageERNS_5CurOpES1_+0x1740) [0x943a30] 
/usr/bin/mongod() [0x889107] 
/usr/bin/mongod(_ZN5mongo16assembleResponseERNS_7MessageERNS_10DbResponseERKNS_11HostAndPortE+0x559) [0x88dcd9] 
/usr/bin/mongod(_ZN5mongo16MyMessageHandler7processERNS_7MessageEPNS_21AbstractMessagingPortEPNS_9LastErrorE+0x78) [0xaa0bc8] 
/usr/bin/mongod(_ZN5mongo3pms9threadRunEPNS_13MessagingPortE+0x287) [0x6389f7] 
/lib/libpthread.so.0(+0x68ca) [0x2b76122978ca] 
Thu Jul 26 12:05:52 [initandlisten] connection accepted from 127.0.0.1:41970 #11

〜＃免費-ltm

   total  used  free  shared buffers  cached 
Mem:   1400  196  1203   0   0   0 
Low:   1400  196  1203 
High:   0   0   0 
-/+ buffers/cache:  196  1203 
Swap:   0   0   0 
Total:  1400  196  1203

〜＃貓的/ proc/sys目錄/ VM/overcommit_memory

〜＃貓/ proc/sys/vm/overcommit_ratio

〜＃-a的ulimit

core file size   (blocks, -c) 0 
data seg size   (kbytes, -d) unlimited 
scheduling priority    (-e) 0 
file size    (blocks, -f) unlimited 
pending signals     (-i) 16382 
max locked memory  (kbytes, -l) 64 
max memory size   (kbytes, -m) unlimited 
open files      (-n) 1024 
pipe size   (512 bytes, -p) 8 
POSIX message queues  (bytes, -q) 819200 
real-time priority    (-r) 0 
stack size    (kbytes, -s) 8192 
cpu time    (seconds, -t) unlimited 
max user processes    (-u) unlimited 
virtual memory   (kbytes, -v) unlimited 
file locks      (-x) unlimited

UPD： 解決方案：禁用日記。

來源

2012-07-26 Art Pip

可以張貼的ulimit -a（或-v）也輸出？ – 2012-07-26 09:16:27

@AdamC，後添加。 – 2012-07-26 09:35:39

數據庫被刪除。這是可能的嗎？ – 2012-07-26 09:50:53

你所得到的錯誤提示，數據仍然存在，但什麼原因造成時，mmaps數據文件的問題。這條線路是你需要看的第一件事：

Thu Jul 26 12:05:44 [conn5] Assertion: 13636:file /var/lib/mongodb/baza.4 open/create failed in createPrivateMap (look in log for more information)

檢查該文件（及其他文件在數據路徑）的權限，以確保沒有從這個角度看是錯誤的。

接着，存在內存不足的錯誤：

星期四年07月26 12點05分44秒[CONN5] ERROR：MMAP私人失敗，內存不足。（64位版本）

你可能會遇到這個錯誤：https://jira.mongodb.org/browse/SERVER-6414

所以，你可以嘗試2.0.7包含此修復程序，候選版本可從downloads page寫這篇文章。

最後，如果您有選擇，您可以通過增加此實例上的內存來解決此問題（如果它是某種虛擬機）1.4GB在運行MongoDB實例方面不是很多RAM 。

來源

2012-07-26 11:24:41

/var/lib/mongodb/baza.4 - 這是我的數據庫的一個文件。它的大小是1 GB。在靜臥的目錄中：baza.1，baza.2，baza.3，baza.4，baza.ns 有沒有什麼辦法恢復這個文件？ – 2012-07-26 13:02:35

我認爲現在問題不在內存中。現在可以免費使用1.2 GB的RAM。 – 2012-07-26 13:12:53

並感謝您花時間回答我。 – 2012-07-26 13:14:18

數據庫錯誤MongoDB：消失的數據庫

回答

相關問題