Hello!

Our MongoDB base is corrupted by problems with hard drive. We recover our disk with database and MongoDB server

We check config and MongoDB database folder. Config ok and have a right dbpath.

In dbpath directory we have many files like this:

total 2.5G
rwxrwxr- 1 mongodb mongodb 21 Apr 16 2017 WiredTiger.lock
rwxrwxr- 1 mongodb mongodb 95 Apr 16 2017 storage.bson
rwxrwxr- 1 mongodb mongodb 16K Apr 16 2017 index-4--2017253496148277652.wt
rwxrwxr- 1 mongodb mongodb 52K Oct 10 2017 index-15-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 36K May 20 02:33 _mdb_catalog.wt.1
rwxrwxr- 1 mongodb mongodb 16K May 20 02:33 collection-2--2017253496148277652.wt
rwxrwxr- 1 mongodb mongodb 36K May 20 02:33 collection-2--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 72K May 20 02:33 collection-18-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 52K May 20 02:33 collection-14-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 100K May 20 02:33 collection-0--4753795739824518231.wt
rwxrwxr- 1 mongodb mongodb 16K May 20 02:33 index-3--2017253496148277652.wt
rwxrwxr- 1 mongodb mongodb 16K May 20 02:33 index-3--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 36K May 20 02:34 index-1--2017253496148277652.wt
rwxrwxr- 1 mongodb mongodb 40K May 20 02:34 collection-0--2017253496148277652.wt
rwxrwxr- 1 mongodb mongodb 44K May 20 02:38 index-19-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 16K May 20 02:38 index-1--4753795739824518231.wt
rwxrwxr- 1 mongodb mongodb 40K May 20 02:51 index-11-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 16K May 20 06:49 index-1-7644913279549684036.wt
rwxrwxr- 1 mongodb mongodb 32K Jun 5 11:53 index-3-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 36K Jun 5 11:53 collection-2-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 52K Jun 17 08:26 index-13-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 132K Jun 22 10:14 collection-12-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 68K Aug 8 03:35 index-25-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 322M Aug 8 03:35 collection-24-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 36K Aug 13 15:24 index-9--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 60K Aug 13 15:24 collection-8--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 368K Aug 15 10:06 index-21-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 1.2M Aug 15 10:06 collection-20-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 84K Aug 16 10:23 index-7-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 192K Aug 16 10:23 collection-6-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 772K Aug 16 14:49 index-5-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 148K Aug 16 14:49 index-23-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 6.1M Aug 16 14:49 collection-4-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 1.1M Aug 16 14:49 collection-22-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 324K Aug 16 14:49 collection-10-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 36K Aug 16 14:49 collection-0-7644913279549684036.wt
rwxrwxr- 1 mongodb mongodb 2.2M Aug 17 11:50 index-17-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 16M Aug 17 11:50 collection-16-6056211751025971878.wt
rwxrwxr- 1 mongodb mongodb 468K Aug 17 16:59 index-7--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 864K Aug 17 16:59 collection-6--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 23M Aug 18 00:16 index-1--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 2.1G Aug 18 00:16 collection-0--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 968K Aug 18 00:17 index-5--3777467847017729897.wt
rwxrwxr- 1 mongodb mongodb 124K Aug 18 00:59 WiredTiger.wt.1
rwxrwxr- 1 mongodb mongodb 49 Aug 28 09:12 WiredTiger
rwxrwxr- 1 mongodb mongodb 1.6M Aug 28 09:12 collection-4--3777467847017729897.wt
rw-rr- 1 mongodb nogroup 16K Aug 28 09:37 index-1-7056954381577752709.wt
rwxrwxr- 1 mongodb mongodb 6 Aug 28 09:38 mongod.lock
drwxrwxr-- 2 mongodb mongodb 4.0K Aug 28 09:39 journal
rw-rr- 1 mongodb nogroup 1000 Aug 28 09:40 WiredTiger.turtle
drwxrwxr-- 2 mongodb mongodb 4.0K Aug 28 10:54 diagnostic.data
rwxrwxr- 1 mongodb mongodb 36K Aug 28 10:55 _mdb_catalog.wt
rw-rr- 1 mongodb nogroup 32K Aug 28 10:55 index-2-7056954381577752709.wt
rw-rr- 1 mongodb nogroup 16K Aug 28 10:55 index-0-7056954381577752709.wt
rwxrwxr- 1 mongodb mongodb 16K Aug 28 10:55 collection-2-3814419529578137210.wt
rwxrwxr- 1 mongodb mongodb 36K Aug 28 10:55 collection-0-3814419529578137210.wt
rwxrwxr- 1 mongodb mongodb 92K Aug 28 10:55 WiredTiger.wt
rw-rr- 1 mongodb nogroup 4.0K Aug 28 10:55 WiredTigerLAS.wt
rwxrwxr- 1 mongodb mongodb 36K Aug 28 10:55 sizeStorer.wt

Its looks like a database!

Our mongod daemon started and we can enter in it by Robo3t, but we see only admin and local databases.

We try to repair it by "mongod --repair --dbpath (path)" key and its nothing gave to as

We try "./wt -v -h ../mongo-bak -C "extensions=[./ext/compressors/snappy/.libs/libwiredtiger_snappy.so]" -R salvage collection-2657-1723320556100349955.wt" on all collections in dbpath directory (by WiredTiger utility) and its nothing gave to as again

Can you help as with this problem? Thanks!

Have a good day!