file:Collection.wt read checksum error, mongodb won't start

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
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    • Affects Version/s: 3.2.8
    • Component/s: Querying, WiredTiger
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    • ALL
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      Hi,
      I tried to start mongoDB server using services. I wasn't able to start it.
      Then i checked the logs. Its showing the read checksum error with some file named as collection.
      Below is the mongoDB log

      2017-05-23T02:31:07.518-0400 W -        [initandlisten] Detected unclean shutdown - E:\Apps\MongoDB\MongoDB\mongoDB\Data\mongod.lock is not empty.
2017-05-23T02:31:07.518-0400 W STORAGE  [initandlisten] Recovering data from the last clean checkpoint.
2017-05-23T02:31:07.518-0400 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=3G,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),direct_io=(data),
2017-05-23T02:31:08.846-0400 E STORAGE  [initandlisten] WiredTiger (0) [1495521068:845181][2580:8766840902224], file:collection-8--4378964801540422943.wt, WT_SESSION.open_cursor: read checksum error for 4096B block at offset 344616960: block header checksum of 1316359805 doesn't match expected checksum of 3610363250
2017-05-23T02:31:08.846-0400 E STORAGE  [initandlisten] WiredTiger (0) [1495521068:846228][2580:8766840902224], file:collection-8--4378964801540422943.wt, WT_SESSION.open_cursor: collection-8--4378964801540422943.wt: encountered an illegal file format or internal value
2017-05-23T02:31:08.846-0400 E STORAGE  [initandlisten] WiredTiger (-31804) [1495521068:846228][2580:8766840902224], file:collection-8--4378964801540422943.wt, WT_SESSION.open_cursor: the process must exit and restart: WT_PANIC: WiredTiger library panic
2017-05-23T02:31:08.846-0400 I -        [initandlisten] Fatal Assertion 28558
2017-05-23T02:31:08.846-0400 I -        [initandlisten] 

***aborting after fassert() failure

      After that, I tried to repair the monogo server using --repair command. Its also Failed with error.
      Below is the repair log. 

      2017-05-23T06:48:51.314-0400 E STORAGE  [initandlisten] WiredTiger (0) [14955365
31:314231][3284:8766840902224], file:collection-22--4378964801540422943.wt, WT_C
URSOR.prev: read checksum error for 8192B block at offset 128155648: block heade
r checksum of 0 doesn't match expected checksum of 4290245144
2017-05-23T06:48:51.318-0400 E STORAGE  [initandlisten] WiredTiger (0) [14955365
31:318313][3284:8766840902224], file:collection-22--4378964801540422943.wt, WT_C
URSOR.prev: collection-22--4378964801540422943.wt: encountered an illegal file f
ormat or internal value
2017-05-23T06:48:51.323-0400 E STORAGE  [initandlisten] WiredTiger (-31804) [149
5536531:323335][3284:8766840902224], file:collection-22--4378964801540422943.wt,
 WT_CURSOR.prev: the process must exit and restart: WT_PANIC: WiredTiger library
 panic
2017-05-23T06:48:51.328-0400 I -        [initandlisten] Fatal Assertion 28558
2017-05-23T06:48:51.330-0400 I -        [initandlisten]
***aborting after fassert() failure

        1. WiredTiger.turtle
          0.9 kB
          DHARANIDHARAN [X]
        2. WiredTiger.wt
          340 kB
          DHARANIDHARAN [X]
        3. repair-SERVER-29323.tar.gz
          17 kB
          Mark Agarunov

            Assignee:
            Mark Agarunov (Inactive)
            Reporter:
            DHARANIDHARAN [X]
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              Created:
              Updated:
              Resolved: